Commit Graph

725 Commits

Author SHA1 Message Date
David Gibson c10325d6f9 spapr_iommu: Provide a function to switch a TCE table to allowing VFIO
Because of the way non-VFIO guest IOMMU operations are KVM accelerated, not
all TCE tables (guest IOMMU contexts) can support VFIO devices.  Currently,
this is decided at creation time.

To support hotplug of VFIO devices, we need to allow a TCE table which
previously didn't allow VFIO devices to be switched so that it can.  This
patch adds an spapr_tce_set_need_vfio() function to do this, by
reallocating the table in userspace if necessary.

Currently this doesn't allow the KVM acceleration to be re-enabled if all
the VFIO devices are removed.  That's an optimization for another time.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
2015-10-23 10:38:10 +11:00
David Gibson 6a81dd172c spapr_iommu: Rename vfio_accel parameter
The vfio_accel parameter used when creating a new TCE table (guest IOMMU
context) has a confusing name.  What it really means is whether we need the
TCE table created to be able to support VFIO devices.

VFIO is relevant, because when available we use in-kernel acceleration of
the TCE table, but that may not work with VFIO devices because updates to
the table are handled in kernel, bypass qemu and so don't hit qemu's
infrastructure for keeping the VFIO host IOMMU state in sync with the guest
IOMMU state.

Rename the parameter to "need_vfio" throughout.  This is a cosmetic change,
with no impact on the logic.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
2015-10-23 10:38:10 +11:00
David Gibson f93caaac36 spapr_pci: Allow PCI host bridge DMA window to be configured
At present the PCI host bridge (PHB) for the pseries machine type has a
fixed DMA window from 0..1GB (in PCI address space) which is mapped to real
memory via the PAPR paravirtualized IOMMU.

For better support of VFIO devices, we're going to want to allow for
different configurations of the DMA window.

Eventually we'll want to allow the guest itself to reconfigure the window
via the PAPR dynamic DMA window interface, but as a preliminary this patch
allows the user to reconfigure the window with new properties on the PHB
device.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
2015-10-23 10:38:10 +11:00
Thomas Huth fd5da5c472 spapr: Add "slb-size" property to CPU device tree nodes
According to a commit message in the Linux kernel (see here
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b60c31d85a2a
for example), the name of the property that carries the information
about the number of SLB entries should be called "slb-size", and
not "ibm,slb-size". The Linux kernel can deal with both names, but
to be on the safe side we should support the official name, too.

[Now that LoPAPR is public, the relevant requirement can be found in
section C.6.1.8 --dwg]

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-10-23 10:38:10 +11:00
Bharata B Rao 7735fedaf4 spapr: Abort when HTAB of requested size isn't allocated
Terminate the guest when HTAB of requested size isn't allocated by
the host.

When memory hotplug is attempted on a guest that has booted with
less than requested HTAB size, the guest kernel will not be able
to gracefully fail the hotplug request. This patch will ensure that
we never end up in a situation where memory hotplug fails due to
less than requested HTAB size.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-10-23 10:38:10 +11:00
Bharata B Rao b817772a25 spapr: Allocate HTAB from machine init
Allocate HTAB from ppc_spapr_init() so that we can abort the guest
if requested HTAB size is't allocated by the host. However retain the
htab reset call in spapr_reset_htab() so that HTAB gets reset (and
not allocated) during machine reset.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-10-23 10:38:10 +11:00
Benjamin Herrenschmidt b798c19057 ppc/spapr: Allow VIRTIO_VGA
It works fine with the Linux driver out of the box

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-10-20 09:26:36 +02:00
Christopher Covington 4a7428c5a7 s/cpu_get_real_ticks/cpu_get_host_ticks/
This should help clarify the purpose of the function that returns
the host system's CPU cycle count.

Signed-off-by: Christopher Covington <cov@codeaurora.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
ppc portion
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-10-08 19:46:01 +03:00
Igor Mammedov df0acded19 memhp: extend address auto assignment to support gaps
setting gap to TRUE will make sparse DIMM
address auto allocation, leaving gaps between
a new DIMM address and preceeding existing DIMM.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-10-02 17:04:32 +03:00
Peter Crosthwaite 4ecd4d16a0 ppc: Rename ELF_MACHINE to be PPC specific
Rename ELF_MACHINE to be PPC specific. This is used as-is by the
various PPC bootloaders and is locally defined to ELF_MACHINE in linux
user in PPC specific ifdeffery.

This removes another architecture specific definition from the global
namespace (as desired by multi-arch).

Cc: Alexander Graf <agraf@suse.de>
Cc: qemu-ppc@nongnu.org
Reviewed-by: Richard Henderson <rth@twiddle.net>
Acked-By: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-25 12:04:44 +02:00
Gavin Shan d76548a98f sPAPR: Enable EEH on VFIO PCI device only
This checks if the PCI device retrieved from the PCI device address
is VFIO PCI device when enabling EEH functionality. If it's not
VFIO PCI device, the EEH functonality isn't enabled.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:11 +10:00
Gavin Shan 47445c80fb sPAPR: Revert don't enable EEH on emulated PCI devices
This reverts commit 7cb18007 ("sPAPR: Don't enable EEH on emulated
PCI devices") as rtas_ibm_set_eeh_option() isn't the right place
to check if there has the corresponding PCI device for the input
address, which can be PE address, not PCI device address.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:11 +10:00
Thomas Huth 4d9392be6c ppc/spapr: Implement H_RANDOM hypercall in QEMU
The PAPR interface defines a hypercall to pass high-quality
hardware generated random numbers to guests. Recent kernels can
already provide this hypercall to the guest if the right hardware
random number generator is available. But in case the user wants
to use another source like EGD, or QEMU is running with an older
kernel, we should also have this call in QEMU, so that guests that
do not support virtio-rng yet can get good random numbers, too.

This patch now adds a new pseudo-device to QEMU that either
directly provides this hypercall to the guest or is able to
enable the in-kernel hypercall if available. The in-kernel
hypercall can be enabled with the use-kvm property, e.g.:

 qemu-system-ppc64 -device spapr-rng,use-kvm=true

For handling the hypercall in QEMU instead, a "RngBackend" is
required since the hypercall should provide "good" random data
instead of pseudo-random (like from a "simple" library function
like rand() or g_random_int()). Since there are multiple RngBackends
available, the user must select an appropriate back-end via the
"rng" property of the device, e.g.:

 qemu-system-ppc64 -object rng-random,filename=/dev/hwrng,id=gid0 \
                   -device spapr-rng,rng=gid0 ...

See http://wiki.qemu-project.org/Features-Done/VirtIORNG for
other example of specifying RngBackends.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:11 +10:00
Thomas Huth ef001f069e ppc/spapr: Fix buffer overflow in spapr_populate_drconf_memory()
The buffer that is allocated in spapr_populate_drconf_memory()
is used for setting both, the "ibm,dynamic-memory" and the
"ibm,associativity-lookup-arrays" property. However, only the
size of the first one is taken into account when allocating the
memory. So if the length of the second property is larger than
the length of the first one, we run into a buffer overflow here!
Fix it by taking the length of the second property into account,
too.

Fixes: "spapr: Support ibm,dynamic-reconfiguration-memory" patch
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:11 +10:00
David Gibson 20bb648dca spapr: Fix default NUMA node allocation for threads
At present, if guest numa nodes are requested, but the cpus in each node
are not specified, spapr just uses the default behaviour or assigning each
vcpu round-robin to nodes.

If smp_threads != 1, that will assign adjacent threads in a core to
different NUMA nodes.  As well as being just weird, that's a configuration
that can't be represented in the device tree we give to the guest, which
means the guest and qemu end up with different ideas of the NUMA topology.

This patch implements mc->cpu_index_to_socket_id in the spapr code to
make sure vcpus get assigned to nodes only at the socket granularity.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2015-09-23 10:51:11 +10:00
Bharata B Rao 0a4178692c spapr: Move memory hotplug to RTAS_LOG_V6_HP_ID_DRC_COUNT type
Till now memory hotplug used RTAS_LOG_V6_HP_ID_DRC_INDEX hotplug type
which meant that we generated one hotplug type of EPOW event for every
256MB (SPAPR_MEMORY_BLOCK_SIZE). This quickly overruns the kernel
rtas log buffer thus resulting in loss of memory hotplug events. Switch
to RTAS_LOG_V6_HP_ID_DRC_COUNT hotplug type for memory so that we
generate only one event per hotplug request.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:11 +10:00
Bharata B Rao 7a36ae7a9f spapr: Support hotplug by specifying DRC count
Support hotplug identifier type RTAS_LOG_V6_HP_ID_DRC_COUNT that allows
hotplugging of DRCs by specifying the DRC count.

While we are here, rename

spapr_hotplug_req_add_event() to spapr_hotplug_req_add_by_index()
spapr_hotplug_req_remove_event() to spapr_hotplug_req_remove_by_index()

so that they match with spapr_hotplug_req_add_by_count().

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:11 +10:00
Bharata B Rao e8f986fc57 spapr: Revert to memory@XXXX representation for non-hotplugged memory
Don't represent non-hotluggable memory under drconf node. With this
we don't have to create DRC objects for them.

The effect of this patch is that we revert back to memory@XXXX representation
for all the memory specified with -m option and represent the cold
plugged memory and hot-pluggable memory under
ibm,dynamic-reconfiguration-memory.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:11 +10:00
Bharata B Rao 6663864e95 spapr: Populate ibm,associativity-lookup-arrays correctly for non-NUMA
When NUMA isn't configured explicitly, assume node 0 is present for
the purpose of creating ibm,associativity-lookup-arrays property
under ibm,dynamic-reconfiguration-memory DT node. This ensures that
the associativity index property is correctly updated in ibm,dynamic-memory
for the LMB that is hotplugged.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:11 +10:00
Bharata B Rao 19a35c9e1b spapr: Provide better error message when slots exceed max allowed
Currently when user specifies more slots than allowed max of
SPAPR_MAX_RAM_SLOTS (32), we error out like this:

qemu-system-ppc64: unsupported amount of memory slots: 64

Let the user know about the max allowed slots like this:

qemu-system-ppc64: Specified number of memory slots 64 exceeds max supported 32

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:11 +10:00
Bharata B Rao b556854bd8 spapr: Don't allow memory hotplug to memory less nodes
Currently PowerPC kernel doesn't allow hot-adding memory to memory-less
node, but instead will silently add the memory to the first node that has
some memory. This causes two unexpected behaviours for the user.

- Memory gets hotplugged to a different node than what the user specified.
- Since pc-dimm subsystem in QEMU still thinks that memory belongs to
  memory-less node, a reboot will set things accordingly and the previously
  hotplugged memory now ends in the right node. This appears as if some
  memory moved from one node to another.

So until kernel starts supporting memory hotplug to memory-less
nodes, just prevent such attempts upfront in QEMU.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:11 +10:00
Bharata B Rao c20d332a85 spapr: Memory hotplug support
Make use of pc-dimm infrastructure to support memory hotplug
for PowerPC.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:10 +10:00
Bharata B Rao ce881f774d spapr: Make hash table size a factor of maxram_size
The hash table size is dependent on ram_size, but since with hotplug
the memory can grow till maxram_size. Hence make hash table size dependent
on maxram_size.

This allows to hotplug huge amounts of memory to the guest.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:10 +10:00
Bharata B Rao 03d196b7c5 spapr: Support ibm,dynamic-reconfiguration-memory
Parse ibm,architecture.vec table obtained from the guest and enable
memory node configuration via ibm,dynamic-reconfiguration-memory if guest
supports it. This is in preparation to support memory hotplug for
sPAPR guests.

This changes the way memory node configuration is done. Currently all
memory nodes are built upfront. But after this patch, only memory@0 node
for RMA is built upfront. Guest kernel boots with just that and rest of
the memory nodes (via memory@XXX or ibm,dynamic-reconfiguration-memory)
are built when guest does ibm,client-architecture-support call.

Note: This patch needs a SLOF enhancement which is already part of
SLOF binary in QEMU.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:10 +10:00
David Gibson 224245bf52 spapr: Add LMB DR connectors
Enable memory hotplug for pseries 2.4 and add LMB DR connectors.
With memory hotplug, enforce RAM size, NUMA node memory size and maxmem
to be a multiple of SPAPR_MEMORY_BLOCK_SIZE (256M) since that's the
granularity in which LMBs are represented and hot-added.

LMB DR connectors will be used by the memory hotplug code.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
               [spapr_drc_reset implementation]
[since this missed the 2.4 cutoff, changing to only enable for 2.5]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:10 +10:00
Alexey Kardashevskiy 38b02bd846 spapr: Use QEMU limit for maximum CPUs number
sPAPR uses hard coded limit of maximum 255 supported CPUs which is
exactly the same as QEMU-wide limit which is MAX_CPUMASK_BITS and also
defined as 255.

This makes use of a global CPU number limit for the "pseries" machine.

In order to anticipate future increase of the MAX_CPUMASK_BITS
(or to help debugging large systems), this also bumps the FDT_MAX_SIZE
limit from 256K to 1M assuming that 1 CPU core needs roughly 512 bytes
in the device tree so the new limit can cover up to 2048 CPU cores.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:10 +10:00
David Gibson 94649d423e spapr: Don't use QOM [*] syntax for DR connectors.
The dynamic reconfiguration (hotplug) code for the pseries machine type
uses a "DR connector" QOM object for each resource it will be possible
to hotplug.  Each of these is added to its owner using
    object_property_add_child(owner, "dr-connector[*], ...);

That works ok, mostly, but it means that the property indices are
arbitrary, depending on the order in which the connectors are constructed.
That might line up to something useful, but it doesn't have to.

It will get worse once we add hotplug RAM support.  That will add a DR
connector object for every 256MB of potential memory.  So if maxmem=2T,
for example, there are 8192 objects under the same parent.

The QOM interfaces aren't really designed for this.  In particular
object_property_add() with [*] has O(n^2) time complexity (in the number of
existing children): first it has a linear search through array indices to
find a free slot, each of which is attempted to a recursive call to
object_property_add() with a specific [N].  Those calls are O(n) because
there's a linear search through all properties to check for duplicates.

By using a meaningful index value, which we already know is unique we can
avoid the [*] special behaviour.  That lets us reduce the total time for
creating the DR objects from O(n^3) to O(n^2).

O(n^2) is still kind of crappy, but it's enough to reduce the startup time
of qemu (with in-progress memory hotplug support) with maxmem=2T from ~20
minutes to ~4 seconds.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Cc: Bharata B Rao <bharata@linux.vnet.ibm.com>
Tested-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2015-09-23 10:51:10 +10:00
Michael Roth 0cb688d22b spapr_drc: use RTAS return codes for methods called by RTAS
Certain methods in sPAPRDRConnector objects are only ever called by
RTAS and in many cases are responsible for the logic that determines
the RTAS return codes.

Rather than having a level of indirection requiring RTAS code to
re-interpret return values from such methods to determine the
appropriate return code, just pass them through directly.

This requires changing method return types to uint32_t to match the
type of values currently passed to RTAS helpers.

In the case of read accesses like drc->entity_sense() where we weren't
previously reporting any errors, just the read value, we modify the
function to return RTAS return code, and pass the read value back via
reference.

Suggested-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Suggested-by: David Gibson <david@gibson.dropbear.id.au>
Cc: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:10 +10:00
Bharata B Rao 4a1c9cf007 spapr: Initialize hotplug memory address space
Initialize a hotplug memory region under which all the hotplugged
memory is accommodated. Also enable memory hotplug by setting
CONFIG_MEM_HOTPLUG.

Modelled on i386 memory hotplug.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:10 +10:00
Michael Roth 9d1852ce11 spapr_drc: don't allow 'empty' DRCs to be unisolated or allocated
Logical resources start with allocation-state:UNUSABLE /
isolation-state:ISOLATED. During hotplug, guests will transition
them to allocation-state:USABLE, and then to
isolation-state:UNISOLATED.

For cases where we cannot transition to allocation-state:USABLE,
in this case due to no device/resource being association with
the logical DRC, we should return an error -3.

For physical DRCs, we default to allocation-state:USABLE and stay
there, so in this case we should report an error -3 when the guest
attempts to make the isolation-state:ISOLATED transition for a DRC
with no device associated.

These are as documented in PAPR 2.7, 13.5.3.4.

We also ensure allocation-state:USABLE when the guest attempts
transition to isolation-state:UNISOLATED to deal with misbehaving
guests attempting to bring online an unallocated logical resource.

This is as documented in PAPR 2.7, 13.7.

Currently we implement no such error logic. Fix this by handling
these error cases as PAPR defines.

Cc: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:10 +10:00
Michael Roth a8ad731a00 spapr_pci: fix device tree props for MSI/MSI-X
PAPR requires ibm,req#msi and ibm,req#msi-x to be present in the
device node to define the number of msi/msi-x interrupts the device
supports, respectively.

Currently we have ibm,req#msi-x hardcoded to a non-sensical constant
that happens to be 2, and are missing ibm,req#msi entirely. The result
of that is that msi-x capable devices get limited to 2 msi-x
interrupts (which can impact performance), and msi-only devices likely
wouldn't work at all. Additionally, if devices expect a minimum that
exceeds 2, the guest driver may fail to load entirely.

SLOF still owns the generation of these properties at boot-time
(although other device properties have since been offloaded to QEMU),
but for hotplugged devices we rely on the values generated by QEMU
and thus hit the limitations above.

Fix this by generating these properties in QEMU as expected by guests.

In the future it may make sense to modify SLOF to pass through these
values directly as we do with other props since we're duplicating SLOF
code.

Cc: qemu-ppc@nongnu.org
Cc: qemu-stable@nongnu.org
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:10 +10:00
Alexey Kardashevskiy ef9971dd69 spapr: Enable in-kernel H_SET_MODE handling
For setting debug watchpoints, sPAPR guests use H_SET_MODE hypercall.
The existing QEMU H_SET_MODE handler does not support this but
the KVM handler in HV KVM does. However it is not enabled.

This enables the in-kernel H_SET_MODE handler which handles:
- Completed Instruction Address Breakpoint Register
- Watch point 0 registers.

The rest is still handled in QEMU.

Reported-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:10 +10:00
David Gibson 22419c2a90 pseries: Fix incorrect calculation of threads per socket for chip-id
The device tree presented to pseries machine type guests includes an
ibm,chip-id property which gives essentially the socket number of each
vcpu core (individual vcpu threads don't get a node in the device
tree).

To calculate this, it uses a vcpus_per_socket variable computed as
(smp_cpus / #sockets).  This is correct for the usual case where
smp_cpus == smp_threads * smp_cores * #sockets.

However, you can start QEMU with the number of cores and threads
mismatching the total number of vcpus (whether that _should_ be
permitted is a topic for another day).  It's a bit hard to say what
the "real" number of vcpus per socket here is, but for most purposes
(smp_threads * smp_cores) will more meaningfully match how QEMU
behaves with respect to socket boundaries.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2015-09-23 10:51:10 +10:00
Laurent Vivier 785652dc4d pseries: define coldplugged devices as "configured"
When a device is hotplugged, attach() sets "configured" to
false, waiting an action from the OS to configure it and then
to call ibm,configure-connector. On ibm,configure-connector,
the hypervisor sets "configured" to true.

In case of coldplugged device, attach() sets "configured" to
false, but firmware and OS never call the ibm,configure-connector
in this case, so it remains set to false.

It could be harmless, but when we unplug a device, hypervisor
waits the device becomes configured because for it, a not configured
device is a device being configured, so it waits the end of configuration
to unplug it... and it never happens, so it is never unplugged.

This patch set by default coldplugged device to "configured=true",
hotplugged device to "configured=false".

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:09 +10:00
Gavin Shan a14aa92b20 sPAPR: Introduce rtas_ldq()
This introduces rtas_ldq() to load 64-bits parameter from continuous
two 4-bytes memory chunk of RTAS parameter buffer, to simplify the
code.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:09 +10:00
Bharata B Rao e6fc9568c8 spapr_rtas: Prevent QEMU crash during hotplug without a prior device_add
If drmgr is used in the guest to hotplug a device before a device_add
has been issued via the QEMU monitor, QEMU segfaults in configure_connector
call. This occurs due to accessing of NULL FDT which otherwise would have
been created and associated with the DRC during device_add command.

Check for NULL FDT and return failure from configure_connector call.
As per PAPR+, an error value of -9003 seems appropriate for this failure.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Cc: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:09 +10:00
Thomas Huth aaf87c6616 ppc/spapr: Use qemu_log_mask() for hcall_dprintf()
To see the output of the hcall_dprintf statements, you currently have
to enable the DEBUG_SPAPR_HCALLS macro in include/hw/ppc/spapr.h.
This is ugly because a) not every user who wants to debug guest
problems can or wants to recompile QEMU to be able to see such issues,
and b) since this macro is disabled by default, the code in the
hcall_dprintf() brackets tends to bitrot until somebody temporarily
enables that macro again.
Since the hcall_dprintf statements except one indicate guest
problems, let's always use qemu_log_mask(LOG_GUEST_ERROR, ...) for
this macro instead. One spot indicated an unimplemented host feature,
so this is changed into qemu_log_mask(LOG_UNIMP, ...) instead. Now
it's possible to see all those messages by simply adding the CLI
parameter "-d guest_errors,unimp", without the need to re-compile
the binary.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:09 +10:00
David Gibson 627c2ef789 spapr_drc: Fix potential undefined behaviour
The DRC_INDEX_ID_MASK macro does a left shift on ~0, which is a signed
quantity, and therefore undefined behaviour according to the C spec.  In
particular this causes warnings from the clang sanitizer.

This fixes it by calculating the same mask without using ~0 (I think the
new method is a more common idiom for generating masks anyway).  For good
measure I also use 1ULL to force the expression's type to unsigned long
long, which should be good for assigning to anything we're going to want
to.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2015-09-23 10:51:09 +10:00
Andrew Jones ad440b4ae0 spapr: add dumpdtb support
dumpdtb (-machine dumpdtb=<file>) allows one to inspect the generated
device tree of machine types that generate device trees. This is
useful for a) seeing what's there b) debugging/testing device tree
generator patches. It can be used as follows

$QEMU_CMDLINE -machine dumpdtb=dtb
dtc -I dtb -O dts dtb

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:09 +10:00
Sam Bobroff e39432282e spapr: SPLPAR Characteristics
Improve the SPLPAR Characteristics information:

    Add MaxPlatProcs: set to max_cpus, the maximum CPUs that could be
    addded to the system.
    Add DesMem: set to the initial memory of the system.
    Add DesProcs: set to smp_cpus, the inital number of CPUs in the
    system.

These tokens and values are specified by PAPR.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:09 +10:00
Sam Bobroff b359bd6a42 spapr: Make ibm, change-msi respect 3 return values
Currently, rtas_ibm_change_msi() always returns four values even if
less are specified.

Correct this by only returning the fourth parameter if it was
requested.

This is specified by PAPR.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:09 +10:00
Sam Bobroff a95f99224c spapr: Add /rtas/ibm,change-msix-capable
QEMU is MSI-X capable and makes it available via ibm,change-msi, so
we should indicate this by adding /rtas/ibm,change-msix-capable to the
device tree.

This is specificed by PAPR.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:09 +10:00
Sam Bobroff 2c1aaa819a spapr: Add /ibm,partition-name
QEMU has a notion of the guest name, so if it's present we might as
well put that into the device tree as /ibm,partition-name.

This is specificed by PAPR.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:51:09 +10:00
David Gibson fb0fc8f62c spapr: Create pseries-2.5 machine
Add pseries-2.5 machine version.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
[Altered to merge before memory hotplug -- dwg]
[Altered to work with b9f072d01 -- dwg]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:50:24 +10:00
Bharata B Rao 613e7a7645 spapr: Provide an error message when migration fails due to htab_shift mismatch
Include an error message when migration fails due to mismatch in
htab_shift values at source and target. This should provide a bit more
verbose message in addition to the current migration failure message
that reads like:

qemu-system-ppc64: error while loading state for instance 0x0 of device 'spapr/htab'

After this patch, the failure message will look like this:

qemu-system-ppc64: htab_shift mismatch: source 29 target 24
qemu-system-ppc64: error while loading state for instance 0x0 of device 'spapr/htab'

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-09-23 10:43:23 +10:00
Paolo Bonzini 116dc18db6 kvm_ppc: remove kvmppc_timer_hack
QEMU does have an I/O thread now, that can be interrupted at any time
because the VCPU thread runs outside the iothread mutex.

Therefore, the kvmppc_timer_hack is obsolete.  Remove it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-09-20 22:48:38 +02:00
Andreas Färber 8a661aea0e Revert use of DEFINE_MACHINE() for registrations of multiple machines
The script used for converting from QEMUMachine had used one
DEFINE_MACHINE() per machine registered. In cases where multiple
machines are registered from one source file, avoid the excessive
generation of module init functions by reverting this unrolling.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-09-19 16:40:27 +02:00
Eduardo Habkost e264d29de2 Use DEFINE_MACHINE() to register all machines
Convert all machines to use DEFINE_MACHINE() instead of QEMUMachine
automatically using a script.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
[AF: Style cleanups, convert imx25_pdk machine]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-09-19 16:40:15 +02:00
Eduardo Habkost f309ae852c mac_world: Break long line
Coding style change only.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-09-19 16:40:09 +02:00
Eduardo Habkost 98cec76a70 machine: Set MachineClass::name automatically
Now all TYPE_MACHINE subclasses use MACHINE_TYPE_NAME to generate the
class name. So instead of requiring each subclass to set
MachineClass::name manually, we can now set it automatically at the
TYPE_MACHINE class_base_init() function.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
[AF/ehabkost: Updated for s390-ccw machines]
[AF: Cleanup of intermediate virt and vexpress name handling]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-09-19 16:39:28 +02:00
Eduardo Habkost c0f365186b mac99: Use MACHINE_TYPE_NAME to encode class name
It will result in exactly the same class name, but it will make the code
consistent with the other classes.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-09-19 16:39:13 +02:00
Eduardo Habkost b9f072d01f pseries: Rename machine class names to use MACHINE_TYPE_NAME
Machine class names should use the "-machine" suffix to allow
class-name-based machine class lookup to work. Rename the the pseries
machine classes using the MACHINE_TYPE_NAME macro.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-09-19 16:38:53 +02:00
Markus Armbruster f8ed85ac99 Fix bad error handling after memory_region_init_ram()
Symptom:

    $ qemu-system-x86_64 -m 10000000
    Unexpected error in ram_block_add() at /work/armbru/qemu/exec.c:1456:
    upstream-qemu: cannot set up guest memory 'pc.ram': Cannot allocate memory
    Aborted (core dumped)

Root cause: commit ef701d7 screwed up handling of out-of-memory
conditions.  Before the commit, we report the error and exit(1), in
one place, ram_block_add().  The commit lifts the error handling up
the call chain some, to three places.  Fine.  Except it uses
&error_abort in these places, changing the behavior from exit(1) to
abort(), and thus undoing the work of commit 3922825 "exec: Don't
abort when we can't allocate guest memory".

The three places are:

* memory_region_init_ram()

  Commit 4994653 (right after commit ef701d7) lifted the error
  handling further, through memory_region_init_ram(), multiplying the
  incorrect use of &error_abort.  Later on, imitation of existing
  (bad) code may have created more.

* memory_region_init_ram_ptr()

  The &error_abort is still there.

* memory_region_init_rom_device()

  Doesn't need fixing, because commit 33e0eb5 (soon after commit
  ef701d7) lifted the error handling further, and in the process
  changed it from &error_abort to passing it up the call chain.
  Correct, because the callers are realize() methods.

Fix the error handling after memory_region_init_ram() with a
Coccinelle semantic patch:

    @r@
    expression mr, owner, name, size, err;
    position p;
    @@
            memory_region_init_ram(mr, owner, name, size,
    (
    -                              &error_abort
    +                              &error_fatal
    |
                                   err@p
    )
                                  );
    @script:python@
        p << r.p;
    @@
    print "%s:%s:%s" % (p[0].file, p[0].line, p[0].column)

When the last argument is &error_abort, it gets replaced by
&error_fatal.  This is the fix.

If the last argument is anything else, its position is reported.  This
lets us check the fix is complete.  Four positions get reported:

* ram_backend_memory_alloc()

  Error is passed up the call chain, ultimately through
  user_creatable_complete().  As far as I can tell, it's callers all
  handle the error sanely.

* fsl_imx25_realize(), fsl_imx31_realize(), dp8393x_realize()

  DeviceClass.realize() methods, errors handled sanely further up the
  call chain.

We're good.  Test case again behaves:

    $ qemu-system-x86_64 -m 10000000
    qemu-system-x86_64: cannot set up guest memory 'pc.ram': Cannot allocate memory
    [Exit 1 ]

The next commits will repair the rest of commit ef701d7's damage.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1441983105-26376-3-git-send-email-armbru@redhat.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
2015-09-18 14:39:29 +02:00
Peter Maydell a2aa09e181 * Support for jemalloc
* qemu_mutex_lock_iothread "No such process" fix
 * cutils: qemu_strto* wrappers
 * iohandler.c simplification
 * Many other fixes and misc patches.
 
 And some MTTCG work (with Emilio's fixes squashed):
 * Signal-free TCG kick
 * Removing spinlock in favor of QemuMutex
 * User-mode emulation multi-threading fixes/docs
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Support for jemalloc
* qemu_mutex_lock_iothread "No such process" fix
* cutils: qemu_strto* wrappers
* iohandler.c simplification
* Many other fixes and misc patches.

And some MTTCG work (with Emilio's fixes squashed):
* Signal-free TCG kick
* Removing spinlock in favor of QemuMutex
* User-mode emulation multi-threading fixes/docs

# gpg: Signature made Thu 10 Sep 2015 09:03:07 BST using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"

* remotes/bonzini/tags/for-upstream: (44 commits)
  cutils: work around platform differences in strto{l,ul,ll,ull}
  cpu-exec: fix lock hierarchy for user-mode emulation
  exec: make mmap_lock/mmap_unlock globally available
  tcg: comment on which functions have to be called with mmap_lock held
  tcg: add memory barriers in page_find_alloc accesses
  remove unused spinlock.
  replace spinlock by QemuMutex.
  cpus: remove tcg_halt_cond and tcg_cpu_thread globals
  cpus: protect work list with work_mutex
  scripts/dump-guest-memory.py: fix after RAMBlock change
  configure: Add support for jemalloc
  add macro file for coccinelle
  configure: factor out adding disas configure
  vhost-scsi: fix wrong vhost-scsi firmware path
  checkpatch: remove tests that are not relevant outside the kernel
  checkpatch: adapt some tests to QEMU
  CODING_STYLE: update mixed declaration rules
  qmp: Add example usage of strto*l() qemu wrapper
  cutils: Add qemu_strtoull() wrapper
  cutils: Add qemu_strtoll() wrapper
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-09-14 16:13:16 +01:00
Markus Armbruster 012aef0734 maint: avoid useless "if (foo) free(foo)" pattern
My Coccinelle semantic patch finds a few more, because it also fixes up
the equally pointless conditional

    if (foo) {
        free(foo);
        foo = NULL;
    }

Result (feel free to squash it into your patch):

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-09-11 10:21:38 +03:00
Paolo Bonzini 9102dedaa1 use qemu_cpu_kick instead of cpu_exit or qemu_cpu_kick_thread
Use the same API to trigger interruption of a CPU, no matter if
under TCG or KVM.  There is no difference: these calls come from
the CPU thread, so the qemu_cpu_kick calls will send a signal
to the running thread and it will be processed synchronously,
just like a call to cpu_exit.  The only difference is in the
overhead, but neither call to cpu_exit (now qemu_cpu_kick)
is in a hot path.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-09 15:34:54 +02:00
Paolo Bonzini 5039d6e235 i8257: remove cpu_request_exit irq
This is unused.  cpu_exit now is almost exclusively an internal function
to the CPU execution loop.  In a few patches, we'll change the remaining
occurrences to qemu_cpu_kick, making it truly internal.

Reviewed-by: Richard henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-09 15:34:53 +02:00
Laurent Vivier e402463073 pci: allow 0 address for PCI IO/MEM regions
Some kernels program a 0 address for io regions. PCI 3.0 spec
section 6.2.5.1 doesn't seem to disallow this.

based on patch by Michael Roth <mdroth@linux.vnet.ibm.com>

Add pci_allow_0_addr in MachineClass to conditionally
allow addr 0 for pseries, as this can break other architectures.

This patch allows to hotplug PCI card in pseries machine, as the first
added card BAR0 is always set to 0 address.

This as a temporary hack, waiting to fix PCI memory priorities for more
machine types...

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-08-13 14:08:29 +03:00
Stefan Hajnoczi 13566fe3e5 timer: rename NSEC_PER_SEC due to Mac OS X header clash
Commit e0cf11f31c ("timer: Use a single
definition of NSEC_PER_SEC for the whole codebase") renamed
NANOSECONDS_PER_SECOND to NSEC_PER_SEC.

On Mac OS X there is a <dispatch/time.h> system header which also
defines NSEC_PER_SEC.  This causes compiler warnings.

Let's use the old name instead.  It's longer but it doesn't clash.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1436364609-7929-1-git-send-email-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-07-20 17:01:00 +01:00
Gonglei 586d2142a9 ppc/spapr_drc: fix memory leak
fix CID 1311373.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Message-Id: <1436489490-236-3-git-send-email-arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-16 20:00:20 +02:00
Peter Maydell 7ce0f7dc87 Patch queue for ppc - 2015-07-07
A few last minute PPC changes for 2.4:
 
   - spapr: Update SLOF
   - spapr: Fix a few bugs
   - spapr: Preparation for hotplug
   - spapr: Minor code cleanups
   - linux-user: Add mftb handling
   - kvm: Enable hugepage support with memory-backend-file
   - mac99: Remove nonexistent interrupt pin (Mac OS 9 fix)
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Merge remote-tracking branch 'remotes/agraf/tags/signed-ppc-for-upstream' into staging

Patch queue for ppc - 2015-07-07

A few last minute PPC changes for 2.4:

  - spapr: Update SLOF
  - spapr: Fix a few bugs
  - spapr: Preparation for hotplug
  - spapr: Minor code cleanups
  - linux-user: Add mftb handling
  - kvm: Enable hugepage support with memory-backend-file
  - mac99: Remove nonexistent interrupt pin (Mac OS 9 fix)

# gpg: Signature made Tue Jul  7 16:48:41 2015 BST using RSA key ID 03FEDC60
# gpg: Good signature from "Alexander Graf <agraf@suse.de>"
# gpg:                 aka "Alexander Graf <alex@csgraf.de>"

* remotes/agraf/tags/signed-ppc-for-upstream: (30 commits)
  sPAPR: Clear stale MSIx table during EEH reset
  sPAPR: Reenable EEH functionality on reboot
  sPAPR: Don't enable EEH on emulated PCI devices
  spapr-vty: Use TYPE_ definition instead of hardcoding
  spapr_vty: lookup should only return valid VTY objects
  spapr_pci: drop redundant args in spapr_[populate, create]_pci_child_dt
  spapr_pci: populate ibm,loc-code
  spapr_pci: enumerate and add PCI device tree
  xics_kvm: Don't enable KVM_CAP_IRQ_XICS if already enabled
  ppc: Update cpu_model in MachineState
  spapr: Consolidate cpu init code into a routine
  spapr: Reorganize CPU dt generation code
  cpus: Add a macro to walk CPUs in reverse
  spapr: Support ibm, lrdr-capacity device tree property
  spapr: Consider max_cpus during xics initialization
  Revert "hw/ppc/spapr_pci.c: Avoid functions not in glib 2.12 (g_hash_table_iter_*)"
  spapr_iommu: translate sPAPRTCEAccess to IOMMUAccessFlags
  spapr_iommu: drop erroneous check in h_put_tce_indirect()
  spapr_pci: set device node unit address as hex
  spapr_pci: encode class code including Prog IF register
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-07-07 21:16:06 +01:00
Gavin Shan 6319b1dad0 sPAPR: Clear stale MSIx table during EEH reset
The PCI device MSIx table is cleaned out in hardware after EEH PE
reset. However, we still hold the stale MSIx entries in QEMU, which
should be cleared accordingly. Otherwise, we will run into another
(recursive) EEH error and the PCI devices contained in the PE have
to be offlined exceptionally.

The patch introduces function spapr_phb_vfio_eeh_pre_reset(), which
is called by sPAPR when asserting hot or fundamental reset, to clear
stale MSIx table for VFIO PCI devices before EEH PE reset so that
MSIx table could be restored properly after EEH PE reset.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:54 +02:00
Gavin Shan aef87d1b87 sPAPR: Reenable EEH functionality on reboot
When rebooting the guest, some PEs might be in frozen state. The
contained PCI devices won't work properly if their frozen states
aren't cleared in time. One case running into this situation would
be maximal EEH error times encountered in the guest.

The patch reenables the EEH functinality on PEs on PHB's reset
callback, which will clear their frozen states if needed.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:53 +02:00
Gavin Shan 7cb180079e sPAPR: Don't enable EEH on emulated PCI devices
There might have emulated PCI devices, together with VFIO PCI
devices under one PHB. The EEH capability shouldn't enabled
on emulated PCI devices.

The patch returns error when enabling EEH capability on emulated
PCI devices by RTAS call "ibm,set-eeh-option".

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:53 +02:00
Nikunj A Dadhania e634b89c6e spapr_pci: drop redundant args in spapr_[populate, create]_pci_child_dt
* phb_index is not being used and if required can be obtained from sphb
* use helper to get drc_index in spapr_populate_pci_child_dt()
* Check if drc_index is zero

Suggested-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:53 +02:00
Nikunj A Dadhania 16b0ea1d85 spapr_pci: populate ibm,loc-code
Each hardware instance has a platform unique location code.  The OF
device tree that describes a part of a hardware entity must include
the “ibm,loc-code” property with a value that represents the location
code for that hardware entity.

Populate ibm,loc-code.

1) PCI passthru devices need to identify with its own ibm,loc-code
   available on the host. In failure cases use:
   vfio_<name>:<phb-index>:<bus>:<slot>.<fn>

2) Emulated devices encode as following:
   qemu_<name>:<phb-index>:<bus>:<slot>.<fn>

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:53 +02:00
Nikunj A Dadhania 1d2d974244 spapr_pci: enumerate and add PCI device tree
All the PCI enumeration and device node creation was off-loaded to
SLOF. With PCI hotplug support, code needed to be added to add device
node. This creates multiple copy of the code one in SLOF and other in
hotplug code. To unify this, the patch adds the pci device node
creation in Qemu. For backward compatibility, a flag
"qemu,phb-enumerated" is added to the phb, suggesting to SLOF to not
do device node creation.

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
[ Squashed Michael's drc_index changes ]
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:52 +02:00
Bharata B Rao 19fb2c36e2 ppc: Update cpu_model in MachineState
Keep cpu_model field in MachineState uptodate so that it can be used
from the CPU hotplug path.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:52 +02:00
Bharata B Rao bab99ea098 spapr: Consolidate cpu init code into a routine
Factor out bits of sPAPR specific CPU initialization code into
a separate routine so that it can be called from CPU hotplug
path too.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:52 +02:00
Bharata B Rao 0da6f3fef9 spapr: Reorganize CPU dt generation code
Reorganize CPU device tree generation code so that it be reused from
hotplug path. CPU dt entries are now generated from spapr_finalize_fdt()
instead of spapr_create_fdt_skel().

Note: This is how the split-up looks like now:

Boot path
---------
spapr_finalize_fdt
 spapr_populate_cpus_dt_node
  spapr_populate_cpu_dt
   spapr_fixup_cpu_numa_dt
   spapr_fixup_cpu_smt_dt

ibm,cas path
------------
spapr_h_cas_compose_response
 spapr_fixup_cpu_dt
  spapr_fixup_cpu_numa_dt
  spapr_fixup_cpu_smt_dt

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:52 +02:00
Bharata B Rao db4ef288f4 spapr: Support ibm, lrdr-capacity device tree property
Add support for ibm,lrdr-capacity since this is needed by the guest
kernel to know about the possible hot-pluggable CPUs and Memory. With
this, pseries kernels will start reporting correct maxcpus in
/sys/devices/system/cpu/possible.

Also define the minimum hotpluggable memory size as 256MB.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[agraf: Fix compile error on 32bit hosts]
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:51 +02:00
Bharata B Rao 9e734e3dee spapr: Consider max_cpus during xics initialization
Use max_cpus instead of smp_cpus when intializating xics system. Also
report max_cpus in ibm,interrupt-server-ranges device tree property of
interrupt controller node.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:51 +02:00
Markus Armbruster 708414f03c Revert "hw/ppc/spapr_pci.c: Avoid functions not in glib 2.12 (g_hash_table_iter_*)"
Since we now require GLib 2.22+ (commit f40685c), we don't have to
work around lack of g_hash_table_iter_init() & friends anymore.

This reverts commit f8833a37c0.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:51 +02:00
Greg Kurz 5709af3b95 spapr_iommu: translate sPAPRTCEAccess to IOMMUAccessFlags
The fact that these enums have matching values is pure coincidence. We
actually need to translate from the PAPR definition to the QEMU one.

This patch doesn't fix any bug, it is only code cleanup.

Suggested-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:51 +02:00
Greg Kurz 4d9ab7d4ed spapr_iommu: drop erroneous check in h_put_tce_indirect()
The tce_list variable is not a TCE but the address to a TCE: we shouldn't
clear permission bits as we do now. And this is dead code anyway since we
check tce_list is 4K aligned a few lines above.

This patch doesn't fix any bug, it is only code cleanup.

Suggested-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:51 +02:00
Nikunj A Dadhania 9b7d9284c3 spapr_pci: set device node unit address as hex
Device node names should encode the unit address as hex, while the
code was encodind it as integers.

Also, use FDT_NAME_MAX macro for allocating and composing the name.

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:51 +02:00
Nikunj A Dadhania 4a7c347415 spapr_pci: encode class code including Prog IF register
Current code missed the Prog IF register. All Class Code, Subclass,
and Prog IF registers are needed to identify the accurate device type.

For example: USB controllers use the PROG IF for denoting: USB
FullSpeed, HighSpeed or SuperSpeed.

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:50 +02:00
Nikunj A Dadhania 72187935b4 spapr_pci: encode missing 64-bit memory address space
The properties reg/assigned-resources need to encode 64-bit memory
address space as part of phys.hi dword.

  00 if configuration space
  01 if IO region,
  10 if 32-bit MEM region
  11 if 64-bit MEM region

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:50 +02:00
David Gibson 183930c0d7 spapr: Add sPAPRMachineClass
Currently although we have an sPAPRMachineState descended from MachineState
we don't have an sPAPRMAchineClass descended from MachineClass.  So far it
hasn't been needed, but several upcoming features are going to want it,
so this patch creates a stub implementation.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:50 +02:00
David Gibson 1b71890729 spapr: Remove obsolete entry_point field from sPAPRMachineState
The sPAPRMachineState structure includes an entry_point field containing
the initial PC value for starting the machine, even though this always has
the value 0x100.

I think this is a hangover from very early versions which bypassed the
firmware when using -kernel.  In any case it has no function now, so remove
it.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:50 +02:00
David Gibson fb16499418 spapr: Remove obsolete ram_limit field from sPAPRMachineState
The ram_limit field was imported from sPAPREnvironment where it predates
the machine's ram size being available generically from machine->ram_size.

Worse, the existing code was inconsistent about where it got the ram size
from.  Sometimes it used spapr->ram_limit, sometimes the global 'ram_size'
and sometimes a local 'ram_size' masking the global.

This cleans up the code to consistently use machine->ram_size, eliminating
spapr->ram_limit in the process.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:50 +02:00
David Gibson 28e0204254 spapr: Merge sPAPREnvironment into sPAPRMachineState
The code for -machine pseries maintains a global sPAPREnvironment structure
which keeps track of general state information about the guest platform.
This predates the existence of the MachineState structure, but performs
basically the same function.

Now that we have the generic MachineState, fold sPAPREnvironment into
sPAPRMachineState, the pseries specific subclass of MachineState.

This is mostly a matter of search and replace, although a few places which
relied on the global spapr variable are changed to find the structure via
qdev_get_machine().

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:50 +02:00
Greg Kurz f303f117fe spapr: ensure we have at least one XICS server
XICS needs to know the upper value for cpu_index as it is used to compute
the number of servers:

    smp_cpus * kvmppc_smt_threads() / smp_threads

When passing -smp cpus=1,threads=9 on a POWER8 host, we end up with:

    1 * 8 / 9 = 0

... which leads to an assertion in both emulated:

Number of servers needs to be greater 0
Aborted (core dumped)

... and in-kernel XICS:

xics_kvm_realize: Assertion `icp->nr_servers' failed.
Aborted (core dumped)

With this patch, we are sure that nr_servers > 0. Passing the same bogus
-smp option then leads to:

qemu-system-ppc64: Cannot support more than 8 threads on PPC with KVM

... which is a lot more explicit than the XICS errors.

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-07 17:44:49 +02:00
Juan Quintela 13d16814d2 global_state: Make section optional
This section would be sent:

a- for all new machine types
b- for old machine types if section state is different form {running,paused}
   that were the only giving us troubles.

So, in new qemus: it is alwasy there.  In old qemus: they are only
there if it an error has happened, basically stoping on target.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2015-07-07 14:54:52 +02:00
Dr. David Alan Gilbert ff14e817f6 Fix older machine type compatibility on power with section footers
I forgot to add compatibility for Power when adding section footers.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

Fixes: 37fb569c01
Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-07-07 14:54:50 +02:00
Alberto Garcia e0cf11f31c timer: Use a single definition of NSEC_PER_SEC for the whole codebase
Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: c6e55468856ba0b8f95913c4da111cc0ef266541.1434113783.git.berto@igalia.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-07-02 09:20:18 +01:00
Markus Armbruster a0b1a66ea3 Include monitor/monitor.h exactly where needed
In particular, don't include it into headers.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-06-22 18:20:41 +02:00
Markus Armbruster cc7a8ea740 Include qapi/qmp/qerror.h exactly where needed
In particular, don't include it into headers.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-06-22 18:20:41 +02:00
Markus Armbruster d49b683644 qerror: Move #include out of qerror.h
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-06-22 18:20:40 +02:00
Markus Armbruster c6bd8c706a qerror: Clean up QERR_ macros to expand into a single string
These macros expand into error class enumeration constant, comma,
string.  Unclean.  Has been that way since commit 13f59ae.

The error class is always ERROR_CLASS_GENERIC_ERROR since the previous
commit.

Clean up as follows:

* Prepend every use of a QERR_ macro by ERROR_CLASS_GENERIC_ERROR, and
  delete it from the QERR_ macro.  No change after preprocessing.

* Rewrite error_set(ERROR_CLASS_GENERIC_ERROR, ...) into
  error_setg(...).  Again, no change after preprocessing.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-06-22 18:20:40 +02:00
Gabriel L. Somlo 48779e5018 fw_cfg: fix FW_CFG_BOOT_DEVICE update on ppc and sparc
On ppc, sparc, and sparc64, the value of the FW_CFG_BOOT_DEVICE 16bit
fw_cfg entry is repeatedly modified from a series of callbacks, which
currently results in the previous value's dynamically allocated memory
being leaked.

This patch switches updating to the new fw_cfg_modify_i16() call, which
does not cause memory leaks.

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-06-10 08:00:37 +02:00
Peter Maydell 3b730f570c Patch queue for ppc - 2015-06-03
Highlights this time around:
 
   - sPAPR: endian fixes, speedups, bug fixes, hotplug basics
   - add default ram size capability for machines (sPAPR defaults to 512MB now)
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Merge remote-tracking branch 'remotes/agraf/tags/signed-ppc-for-upstream' into staging

Patch queue for ppc - 2015-06-03

Highlights this time around:

  - sPAPR: endian fixes, speedups, bug fixes, hotplug basics
  - add default ram size capability for machines (sPAPR defaults to 512MB now)

# gpg: Signature made Wed Jun  3 22:59:09 2015 BST using RSA key ID 03FEDC60
# gpg: Good signature from "Alexander Graf <agraf@suse.de>"
# gpg:                 aka "Alexander Graf <alex@csgraf.de>"

* remotes/agraf/tags/signed-ppc-for-upstream: (40 commits)
  softmmu: support up to 12 MMU modes
  tcg: add TCG_TARGET_TLB_DISPLACEMENT_BITS
  tci: do not use CPUArchState in tcg-target.h
  Add David Gibson for sPAPR in MAINTAINERS file
  pseries: Enable in-kernel H_LOGICAL_CI_{LOAD, STORE} implementations
  spapr: override default ram size to 512MB
  machine: add default_ram_size to machine class
  spapr_pci: emit hotplug add/remove events during hotplug
  spapr_pci: enable basic hotplug operations
  pci: make pci_bar useable outside pci.c
  spapr_pci: create DRConnectors for each PCI slot during PHB realize
  spapr_pci: add dynamic-reconfiguration option for spapr-pci-host-bridge
  spapr_drc: add spapr_drc_populate_dt()
  spapr_events: event-scan RTAS interface
  spapr_events: re-use EPOW event infrastructure for hotplug events
  spapr_rtas: add ibm, configure-connector RTAS interface
  spapr: add rtas_st_buffer_direct() helper
  spapr_rtas: add get-sensor-state RTAS interface
  spapr_rtas: add set-indicator RTAS interface
  spapr_rtas: add get/set-power-level RTAS interfaces
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-04 14:04:14 +01:00
David Gibson 026bfd89cb pseries: Enable in-kernel H_LOGICAL_CI_{LOAD, STORE} implementations
qemu currently implements the hypercalls H_LOGICAL_CI_LOAD and
H_LOGICAL_CI_STORE as PAPR extensions.  These are used by the SLOF firmware
for IO, because performing cache inhibited MMIO accesses with the MMU off
(real mode) is very awkward on POWER.

This approach breaks when SLOF needs to access IO devices implemented
within KVM instead of in qemu.  The simplest example would be virtio-blk
using an iothread, because the iothread / dataplane mechanism relies on
an in-kernel implementation of the virtio queue notification MMIO.

To fix this, an in-kernel implementation of these hypercalls has been made,
(kernel commit 99342cf "kvmppc: Implement H_LOGICAL_CI_{LOAD,STORE} in KVM"
however, the hypercalls still need to be enabled from qemu.  This performs
the necessary calls to do so.

It would be nice to provide some warning if we encounter a problematic
device with a kernel which doesn't support the new calls.  Unfortunately,
I can't see a way to detect this case which won't either warn in far too
many cases that will probably work, or which is horribly invasive.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:55 +02:00
Nikunj A Dadhania a34944fe2e spapr: override default ram size to 512MB
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:55 +02:00
Tyrel Datwyler c5bc152bc3 spapr_pci: emit hotplug add/remove events during hotplug
This uses extension of existing EPOW interrupt/event mechanism
to notify userspace tools like librtas/drmgr to handle
in-guest configuration/cleanup operations in response to
device_add/device_del.

Userspace tools that don't implement this extension will need
to be run manually in response/advance of device_add/device_del,
respectively.

Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:55 +02:00
Michael Roth 7454c7af91 spapr_pci: enable basic hotplug operations
This enables hotplug of PCI devices to a PHB. Upon hotplug we
generate the OF-nodes required by PAPR specification and
IEEE 1275-1994 "PCI Bus Binding to Open Firmware" for the
device.

We associate the corresponding FDT for these nodes with the DRC
corresponding to the slot, which will be fetched via
ibm,configure-connector RTAS calls by the guest as described by PAPR
specification.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:54 +02:00
Michael Roth 62083979b0 spapr_pci: create DRConnectors for each PCI slot during PHB realize
These will be used to support hotplug/unplug of PCI devices to the PCI
bus associated with a particular PHB.

We also set up device-tree properties in each PHBs initial FDT to
describe the DRCs associated with them. This advertises to guests that
each PHB is DR-capable device with physical hotpluggable slots, each
managed by the corresponding DRC. This is necessary for allowing
hotplugging of devices to it later via bus rescan or guest rpaphp
hotplug module.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:54 +02:00
Michael Roth 7619c7b00c spapr_pci: add dynamic-reconfiguration option for spapr-pci-host-bridge
This option enables/disables PCI hotplug for a particular PHB.

Also add machine compatibility code to disable it by default for machine
types prior to pseries-2.4.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[agraf: move commas for compat fields]
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:54 +02:00
Michael Roth e4b798bb53 spapr_drc: add spapr_drc_populate_dt()
This function handles generation of ibm,drc-* array device tree
properties to describe DRC topology to guests. This will by used
by the guest to direct RTAS calls to manage any dynamic resources
we associate with a particular DR Connector as part of
hotplug/unplug.

Since general management of boot-time device trees are handled
outside of sPAPRDRConnector, we insert these values blindly given
an FDT and offset. A mask of sPAPRDRConnector types is given to
instruct us on what types of connectors entries should be generated
for, since descriptions for different connectors may live in
different parts of the device tree.

Based on code originally written by Nathan Fontenot.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:54 +02:00
Tyrel Datwyler 79853e18d9 spapr_events: event-scan RTAS interface
We don't actually rely on this interface to surface hotplug events, and
instead rely on the similar-but-interrupt-driven check-exception RTAS
interface used for EPOW events. However, the existence of this interface
is needed to ensure guest kernels initialize the event-reporting
interfaces which will in turn be used by userspace tools to handle these
events, so we implement this interface here.

Since events surfaced by this call are mutually exclusive to those
surfaced via check-exception, we also update the RTAS event queue code
to accept a boolean to mark/filter for events accordingly.

Events of this sort are not currently generated by QEMU, but the interface
has been tested by surfacing hotplug events via event-scan in place
of check-exception.

Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:53 +02:00
Nathan Fontenot 31fe14d15d spapr_events: re-use EPOW event infrastructure for hotplug events
This extends the data structures currently used to report EPOW events to
guests via the check-exception RTAS interfaces to also include event types
for hotplug/unplug events.

This is currently undocumented and being finalized for inclusion in PAPR
specification, but we implement this here as an extension for guest
userspace tools to implement (existing guest kernels simply log these
events via a sysfs interface that's read by rtas_errd, and current
versions of rtas_errd/powerpc-utils already support the use of this
mechanism for initiating hotplug operations).

We also add support for queues of pending RTAS events, since in the
case of hotplug there's chance for multiple events being in-flight
at any point in time.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:53 +02:00
Michael Roth 46503c2bc0 spapr_rtas: add ibm, configure-connector RTAS interface
This interface is used to fetch an OF device-tree nodes that describes a
newly-attached device to guest. It is called multiple times to walk the
device-tree node and fetch individual properties into a 'workarea'/buffer
provided by the guest.

The device-tree is generated by QEMU and passed to an sPAPRDRConnector during
the initial hotplug operation, and the state of these RTAS calls is tracked by
the sPAPRDRConnector. When the last of these properties is successfully
fetched, we report as special return value to the guest and transition
the device to a 'configured' state on the QEMU/DRC side.

See docs/specs/ppc-spapr-hotplug.txt for a complete description of
this interface.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:53 +02:00
Mike Day 886445a6ee spapr_rtas: add get-sensor-state RTAS interface
This interface allows a guest to read various platform/device sensors.
initially, we only implement support necessary to support hotplug:
reading of the dr-entity-sense sensor, which communicates the state of
a hotplugged resource/device to the guest (EMPTY/PRESENT/UNUSABLE).

See docs/specs/ppc-spapr-hotplug.txt for a complete description of
this interface.

Signed-off-by: Mike Day <ncmike@ncultra.org>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:53 +02:00
Mike Day 8c8639df32 spapr_rtas: add set-indicator RTAS interface
This interface allows a guest to control various platform/device
sensors. Initially, we only implement support necessary to control
sensors that are required for hotplug: DR connector indicators/LEDs,
resource allocation state, and resource isolation state.

See docs/specs/ppc-spapr-hotplug.txt for a complete description of
this interface.

Signed-off-by: Mike Day <ncmike@ncultra.org>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:53 +02:00
Nathan Fontenot 094d20585e spapr_rtas: add get/set-power-level RTAS interfaces
These interfaces manage the power domains that guest devices are
assigned to and are used to power on/off devices. Currently we
only utilize 1 power domain, the 'live-insertion' domain, which
automates power management of plugged/unplugged devices, essentially
making these calls no-ops, but the RTAS interfaces are still required
by guest hotplug code and PAPR+.

See docs/specs/ppc-spapr-hotplug.txt for a complete description of
these interfaces.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:52 +02:00
Michael Roth bbf5c878ab spapr_drc: initial implementation of sPAPRDRConnector device
This device emulates a firmware abstraction used by pSeries guests to
manage hotplug/dynamic-reconfiguration of host-bridges, PCI devices,
memory, and CPUs. It is conceptually similar to an SHPC device,
complete with LED indicators to identify individual slots to physical
physical users and indicate when it is safe to remove a device. In
some cases it is also used to manage virtualized resources, such a
memory, CPUs, and physical-host bridges, which in the case of pSeries
guests are virtualized resources where the physical components are
managed by the host.

Guests communicate with these DR Connectors using RTAS calls,
generally by addressing the unique DRC index associated with a
particular connector for a particular resource. For introspection
purposes we expose this state initially as QOM properties, and
in subsequent patches will introduce the RTAS calls that make use of
it. This constitutes to the 'guest' interface.

On the QEMU side we provide an attach/detach interface to associate
or cleanup a DeviceState with a particular sPAPRDRConnector in
response to hotplug/unplug, respectively. This constitutes the
'physical' interface to the DR Connector.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:52 +02:00
Thomas Huth 730fce593b hw/ppc/spapr: Use error_report() instead of hw_error()
hw_error() is designed for printing CPU-related error messages
(e.g. it also prints a full CPU register dump). For error messages
that are not directly related to CPU problems, a function like
error_report() should be used instead.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:52 +02:00
Thomas Huth 68fea5a0d7 hw/ppc/spapr: Fix error message when firmware could not be loaded
When specifying a non-existing file with the "-bios" parameter, QEMU
complained that it "could not find LPAR rtas". That's obviously a
copy-n-paste bug from the code which loads the spapr-rtas.bin, it
should complain about a missing firmware file instead.
Additionally the error message was printed with hw_error() - which
also dumps the whole CPU state. However, this does not make much
sense here since the CPU is not running yet and thus the registers
only contain zeroes. So let's use error_report() here instead.
And while we're at it, let's also bail out if the firmware file
had zero length.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:52 +02:00
David Gibson a1a4561243 pseries: Add pseries-2.4 machine type
Now that 2.4 development has opened, create a new pseries machine type
variant.  For now it is identical to the pseries-2.3 machine type, but
a number of new features are coming that will need to set backwards
compatibility options.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:52 +02:00
Thomas Huth f9ce8e0aa3 hw/ppc/spapr_iommu: Fix the check for invalid upper bits in liobn
The check "liobn & 0xFFFFFFFF00000000ULL" in spapr_tce_find_by_liobn()
is completely useless since liobn is only declared as an uint32_t
parameter. Fix this by using target_ulong instead (this is what most
of the callers of this function are using, too).

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:51 +02:00
Alexey Kardashevskiy dea1b3ce75 spapr_iommu: Give unique QOM name to TCE table
Useful for debugging.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:51 +02:00
Alexey Kardashevskiy ccf9ff8527 spapr_pci: Rework device-tree rendering
This replaces object_child_foreach() and callback with existing
SPAPR_PCI_LIOBN() and spapr_tce_find_by_liobn() to make the code easier
to read.

This is a mechanical patch so no behaviour change is expected.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:51 +02:00
Alexey Kardashevskiy fae807a2b1 spapr_iommu: Make spapr_tce_find_by_liobn() public
At the moment spapr_tce_find_by_liobn() is used by H_PUT_TCE/...
handlers to find an IOMMU by LIOBN.

We are going to implement Dynamic DMA windows (DDW), new code
will go to a new file and we will use spapr_tce_find_by_liobn()
there too so let's make it public.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:51 +02:00
Alexey Kardashevskiy 46c5874e9c spapr_pci: Make find_phb()/find_dev() public
This makes find_phb()/find_dev() public and changed its names
to spapr_pci_find_phb()/spapr_pci_find_dev() as they are going to
be used from other parts of QEMU such as VFIO DDW (dynamic DMA window)
or VFIO PCI error injection or VFIO EEH handling - in all these
cases there are RTAS calls which are addressed to BUID+config_addr
in IEEE1275 format.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:51 +02:00
Alexey Kardashevskiy d9d96a3cc7 spapr_iommu: Add separate trace points for PCI DMA operations
This is to reduce VIO noise while debugging PCI DMA.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:51 +02:00
Alexey Kardashevskiy 3e1a01cb55 spapr_pci: Define default DMA window size as a macro
This gets rid of a magic constant describing the default DMA window size
for an emulated PHB.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:50 +02:00
Alexey Kardashevskiy 4290ca49ee spapr_vio: Introduce a liobn number generating macros
This introduces a macro which makes up a LIOBN from fixed prefix and
VIO device address (@reg property).

This is to keep LIOBN macros rendering consistent - the same macro for
PCI has been added by the previous patch.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:50 +02:00
Alexey Kardashevskiy c8545818b3 spapr_pci: Introduce a liobn number generating macros
We are going to have multiple DMA windows per PHB and we want them to
migrate so we need a predictable way of assigning LIOBNs.

This introduces a macro which makes up a LIOBN from fixed prefix,
PHB index (unique PHB id) and window number.

This introduces a SPAPR_PCI_DMA_WINDOW_NUM() to know the window number
from LIOBN. It is used to distinguish the default 32bit windows from
dynamic windows and avoid picking default DMA window properties from
a wrong TCE table.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:50 +02:00
Alexey Kardashevskiy f1215ea702 spapr_iommu: Make H_PUT_TCE_INDIRECT endian-safe
PAPR is defined as big endian so TCEs need an adjustment so
does this patch.

This changes code to have ldq_be_phys() in one place.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:50 +02:00
Alexey Kardashevskiy 12fd285358 spapr_iommu: Disable in-kernel IOMMU tables for >4GB windows
The existing KVM_CREATE_SPAPR_TCE ioctl only support 4G windows max as
the window size parameter to the kernel ioctl() is 32-bit so
there's no way of expressing a TCE window > 4GB.

We are going to add huge DMA windows support so this will create small
window and unexpectedly fail later.

This disables KVM_CREATE_SPAPR_TCE for windows bigger that 4GB.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:50 +02:00
David Gibson 421b1b27f6 spapr_pci: Fix unsafe signed/unsigned comparisons
spapr_pci.c contains a number of expressions of the form (uval == -1) or
(uval != -1), where 'uval' is an unsigned value.

This mostly works in practice, because as long as the width of uval is
greater or equal than that of (int), the -1 will be promoted to the
unsigned type, which is the expected outcome.

However, at least for the cases where uval is uint32_t, this would break
on platforms where sizeof(int) > 4 (and a few such do exist), because then
the uint32_t value would be promoted to the larger int type, and never be
equal to -1.

This patch fixes these errors.  The fixes for the (uint32_t) cases are
necessary as described above.  I've made similar fixes to (uint64_t) and
(hwaddr) cases.  Those are strictly theoretical, since I don't know of any
platforms where sizeof(int) > 8, but hey, it's not that hard so we might
as well be strictly C standard compliant.

Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:50 +02:00
Shannon Zhao aaaee0b273 hw/ppc/prep.c: Fix misusing qemu_allocate_irqs for single irq
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-06-03 14:21:24 +03:00
Shannon Zhao f19377bf23 hw/ppc/e500.c: Fix memory leak
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-06-03 14:21:24 +03:00
Eduardo Habkost 38ff32c6e6 spapr: define SPAPR_COMPAT_2_3
Don't add the pseries-2.3 machine yet, but define the corresponding
SPAPR_COMPAT macro to make sure both pseries-2.2 and pseries-2.1 will
inherit HW_COMPAT_2_3.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-05-31 16:26:41 +02:00
Eduardo Habkost 4dfd8eaa19 spapr: Use HW_COMPAT_* inside SPAPR_COMPAT_* macros
SPAPR_COMPAT_2_1 will need to include both HW_COMPAT_2_2 and
HW_COMPAT_2_1, so include HW_COMPAT_2_1 inside SPAPR_COMPAT_2_1 and
HW_COMPAT_2_2 inside SPAPR_COMPAT_2_2.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-05-31 16:26:41 +02:00
Eduardo Habkost dd754baf46 spapr: Move commas inside SPAPR_COMPAT_* macros
Changing the convention to include commas inside the macros will allow
macros containing empty lists to be defined and used without compilation
errors.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-05-31 16:26:41 +02:00
Eduardo Habkost f27086a731 hw: Move commas inside HW_COMPAT_2_1 macro
Changing the convention to include commas inside the macros will allow
macros containing empty lists to be defined and used without compilation
errors.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-05-31 16:26:41 +02:00
Peter Maydell 0403b0f539 pc, virtio enhancements
Memory hot-unplug support for pc, MSI-X
 mapping update speedup for virtio-pci,
 misc refactorings and bugfixes.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pc, virtio enhancements

Memory hot-unplug support for pc, MSI-X
mapping update speedup for virtio-pci,
misc refactorings and bugfixes.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Mon May 11 08:23:43 2015 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"

* remotes/mst/tags/for_upstream: (28 commits)
  acpi: update expected files for memory unplug
  virtio-scsi: Move DEFINE_VIRTIO_SCSI_FEATURES to virtio-scsi
  virtio-net: Move DEFINE_VIRTIO_NET_FEATURES to virtio-net
  pci: Merge pci_nic_init() into pci_nic_init_nofail()
  acpi: add a missing backslash to the \_SB scope.
  qmp-event: add event notification for memory hot unplug error
  acpi: add hardware implementation for memory hot unplug
  acpi: fix "Memory device control fields" register
  acpi: extend aml_field() to support UpdateRule
  acpi, mem-hotplug: add unplug cb for memory device
  acpi, mem-hotplug: add unplug request cb for memory device
  acpi, mem-hotplug: add acpi_memory_slot_status() to get MemStatus
  docs: update documentation for memory hot unplug
  virtio: coding style tweak
  pci: remove hard-coded bar size in msix_init_exclusive_bar()
  virtio-pci: speedup MSI-X masking and unmasking
  virtio: introduce vector to virtqueues mapping
  virtio-ccw: using VIRTIO_NO_VECTOR instead of 0 for invalid virtqueue
  monitor: check return value of qemu_find_net_clients_except()
  monitor: replace the magic number 255 with MAX_QUEUE_NUM
  ...

Conflicts:
	hw/s390x/s390-virtio-bus.c

[PMM: fixed conflict in s390_virtio_scsi_properties and
s390_virtio_net_properties arrays; since the result of the
two conflicting patches is to empty the property arrays
completely, the conflict resolution is to remove them entirely.]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-11 16:25:33 +01:00
Stefan Weil 631b22ea20 misc: Fix new collection of typos
All of them were reported by codespell.
Most typos are in comments, one is in an error message.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-04-30 16:05:48 +03:00
Stefan Hajnoczi 786a4ea82e Convert (ffs(val) - 1) to ctz32(val)
This commit was generated mechanically by coccinelle from the following
semantic patch:

@@
expression val;
@@
- (ffs(val) - 1)
+ ctz32(val)

The call sites have been audited to ensure the ffs(0) - 1 == -1 case
never occurs (due to input validation, asserts, etc).  Therefore we
don't need to worry about the fact that ctz32(0) == 32.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1427124571-28598-5-git-send-email-stefanha@redhat.com
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-04-28 15:36:08 +02:00
Jason Wang d25228e7be ppc: spapr: add 2.4 machine type
The following patches will limit the following things to legacy
machine type:

- maximum number of virtqueues for virtio-pci were limited to 64

Cc: Alexander Graf <agraf@suse.de>
Cc: qemu-ppc@nongnu.org

Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

Reviewed-by: Alexander Graf <agraf@suse.de>
2015-04-27 21:02:40 +02:00
Jason Wang b0e966d020 spapr: add machine type specific instance init function
This patches adds machine type specific instance initialization
functions. Those functions will be used by following patches to compat
class properties for legacy machine types.

Cc: Alexander Graf <agraf@suse.de>
Cc: qemu-ppc@nongnu.org
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-04-27 20:49:46 +02:00
Peter Maydell f75d4f8295 Bugfixes and making SCSI adapters IOMMU-friendly.
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

Bugfixes and making SCSI adapters IOMMU-friendly.

# gpg: Signature made Thu Mar 26 13:24:05 2015 GMT using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream:
  virtio-scsi-dataplane: fix memory leak for VirtIOSCSIVring
  misc: fix typos in copyright declaration
  exec: avoid possible overwriting of mmaped area in qemu_ram_remap
  sparc: memory: Replace memory_region_init_ram with memory_region_allocate_system_memory
  mips: memory: Replace memory_region_init_ram with memory_region_allocate_system_memory
  m68k: memory: Replace memory_region_init_ram with memory_region_allocate_system_memory
  nbd: Fix up comment after commit e140177
  vmw_pvscsi: use PCI DMA APIs
  megasas: use PCI DMA APIs
  cpus: Don't kick un-realized cpus.
  i6300esb: Fix signed integer overflow
  i6300esb: Correct endiannness
  fw_cfg: factor out initialization of FW_CFG_ID (rev. number)
  rcu tests: fix compilation on 32-bit ppc

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-03-26 17:33:35 +00:00
Paolo Bonzini c6e765035b powerpc: fix -machine usb=no for newworld and pseries machines
Capture the explicit setting of "usb=no" into a separate bool, and
use it to skip the update of machine->usb in the board init function.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-25 22:49:47 +01:00
Alexander Graf 5b2128d270 PPC: pseries: Implement boot once=foo
On sPAPR we haven't supported boot once ever since it emerged, but
recently grew need for it. This patch implements boot once logic
to it.

While at it, we also move to the new bootdevice handling that got
introduced to the tree recently.

Reported-by: Dinar Valeev <dvaleev@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-25 22:49:46 +01:00
Stefan Weil 4c56440d67 spapr: Add missing checks for NULL pointers and report failures
This fixes potential runtime crashes and two warnings from Coverity.

The new error message does not add  a prefix "qemu:" because that is
already done in function hw_error. It also starts with an uppercase
letter because that seems to be the mostly used form.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
[agraf: fix typo]
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-25 22:49:46 +01:00
Gabriel L. Somlo 3a5c76baf3 fw_cfg: factor out initialization of FW_CFG_ID (rev. number)
The fw_cfg documentation says this of the revision key (0x0001, FW_CFG_ID):

> A 32-bit little-endian unsigned int, this item is used as an interface
> revision number, and is currently set to 1 by all QEMU architectures
> which expose a fw_cfg device.

arm/virt doesn't.  It could be argued that that's an error in
"hw/arm/virt.c"; on the other hand, all of the other fw_cfg providing
boards set the interface version to 1 manually, despite the device
coming from the same, shared implementation. Therefore, instead of
adding

    fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);

to arm/virt, consolidate all such existing calls in the fw_cfg
initialization code.

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Message-Id: <1426789244-26318-1-git-send-email-somlo@cmu.edu>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-25 13:37:10 +01:00
Peter Maydell a195fdd028 misc fixes and cleanups
A bunch of fixes all over the place, some of the
 bugs fixed are actually regressions.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

misc fixes and cleanups

A bunch of fixes all over the place, some of the
bugs fixed are actually regressions.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Wed Mar 11 17:48:30 2015 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream: (25 commits)
  virtio-scsi: remove empty wrapper for cmd
  virtio-scsi: clean out duplicate cdb field
  virtio-scsi: fix cdb/sense size
  uapi/virtio_scsi: allow overriding CDB/SENSE size
  virtio-scsi: drop duplicate CDB/SENSE SIZE
  exec: don't include hw/boards for linux-user
  acpi: specify format for build_append_namestring
  MAINTAINERS: drop aliguori@amazon.com
  tpm: Move memory subregion function into realize function
  virtio-pci: Convert to realize()
  pci: Convert pci_nic_init() to Error to avoid qdev_init()
  machine: query mem-merge machine property
  machine: query dump-guest-core machine property
  hw/boards: make it safe to include for linux-user
  machine: query phandle-start machine property
  machine: query kvm-shadow-mem machine property
  kvm: add machine state to kvm_arch_init
  machine: query kernel-irqchip property
  machine: allowed/required kernel-irqchip support
  machine: replace qemu opts with iommu property
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-03-12 09:13:07 +00:00
Marcel Apfelbaum 446f16a690 machine: query kernel-irqchip property
Running
    x86_64-softmmu/qemu-system-x86_64 -machine pc,kernel_irqchip=on -enable-kvm
leads to crash:
    qemu-system-x86_64: qemu/util/qemu-option.c:387: qemu_opt_get_bool_helper:
    Assertion `opt->desc && opt->desc->type == QEMU_OPT_BOOL' failed.  Aborted
    (core dumped)

This happens because the commit e79d5a6 ("machine: remove qemu_machine_opts
global list") removed the global option descriptions and moved them to
MachineState's QOM properties.

Fix this by querying machine properties through designated wrappers.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-11 18:14:23 +01:00
Peter Maydell 4ba4df405c qemu-sparc update
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Merge remote-tracking branch 'remotes/mcayland/tags/qemu-sparc-signed' into staging

qemu-sparc update

# gpg: Signature made Tue Mar 10 13:39:51 2015 GMT using RSA key ID AE0F321F
# gpg: Good signature from "Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>"

* remotes/mcayland/tags/qemu-sparc-signed:
  sun4u: switch m48t59 NVRAM to MMIO access
  MAINTAINERS: add myself as SPARC maintainer
  doc: minor updates to SPARC32 and SPARC64 documentation
  m48t59: add m48t59 sysbus device
  m48t59: introduce new base-year qdev property
  m48t59: let init functions return a Nvram object
  m48t59: add a Nvram interface
  m48t59: register a QOM type for each nvram type we support
  m48t59: move ISA ports/memory regions registration to QOM constructor

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-03-11 08:44:59 +00:00
Mark Cave-Ayland 6de0497385 m48t59: introduce new base-year qdev property
Currently the m48t59 device uses the hardware model in order to determine
whether the year value is offset from the hardware value. As this will
soon be required by the x59 model, create a qdev base-year property to
represent the base year and update the callers appropriately.

Reviewed-by: Hervé Poussineau <hpoussin@reactos.org>
CC: Andreas Färber <afaerber@suse.de>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2015-03-10 09:18:56 +00:00
Hervé Poussineau 3168824682 m48t59: let init functions return a Nvram object
Remove left-overs from header file.
Move some functions only used by PReP to hw/ppc/prep.c

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
CC: Andreas Färber <afaerber@suse.de>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2015-03-10 09:18:56 +00:00
Michael Tokarev 2343dd11a6 e500: fix memory leak
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
2015-03-10 08:15:34 +03:00
Gavin Shan 2aad88f4b0 sPAPR: Implement sPAPRPHBClass EEH callbacks
The patch implements sPAPRPHBClass EEH callbacks so that the EEH
RTAS requests can be routed to VFIO for further handling.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 15:00:08 +01:00
Gavin Shan ee954280da sPAPR: Implement EEH RTAS calls
The emulation for EEH RTAS requests from guest isn't covered
by QEMU yet and the patch implements them.

The patch defines constants used by EEH RTAS calls and adds
callbacks sPAPRPHBClass::{eeh_set_option, eeh_get_state, eeh_reset,
eeh_configure}, which are going to be used as follows:

  * RTAS calls are received in spapr_pci.c, sanity check is done
    there.
  * RTAS handlers handle what they can. If there is something it
    cannot handle and the corresponding sPAPRPHBClass callback is
    defined, it is called.
  * Those callbacks are only implemented for VFIO now. They do ioctl()
    to the IOMMU container fd to complete the calls. Error codes from
    that ioctl() are transferred back to the guest.

[aik: defined RTAS tokens for EEH RTAS calls]
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 15:00:08 +01:00
Markus Armbruster 28b07e737e spapr_vio: Convert to realize()
Bonus fix: always set an error on failure.  Some failures were silent
before, except for the generic error set by device_realize().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 15:00:07 +01:00
David Gibson eefaccc02b pseries: Switch VGA endian on H_SET_MODE
When the guest switches the interrupt endian mode, which essentially
means a global machine endian switch, we want to change the VGA
framebuffer endian mode as well in order to be backward compatible
with existing guests who don't know about the new endian control
register.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 15:00:03 +01:00
Markus Armbruster 34f2af3d3e spapr: Clean up misuse of qdev_init() in xics-kvm creation
We call try_create_xics() to create a "xics-kvm".  If it fails, we
call it again to fall back to plain "xics".

try_create_xics() uses qdev_init().  qdev_init()'s error handling has
an unwanted side effect: it calls qerror_report_err(), which prints to
stderr.  Looks like an error, but isn't.

In QMP context, it would stash the error in the monitor instead,
making the QMP command fail.  Fortunately, it's only called from board
initialization, never in QMP context.

Clean up by cutting out the qdev_init() middle-man: set property
"realized" directly.

While there, improve the error message when we can't satisfy an
explicit user request for "xics-kvm", and exit(1) instead of abort().
Simplify the abort when we can't create "xics".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
[agraf: squash in fix for uninitialized variable from mdroth]
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 15:00:02 +01:00
Markus Armbruster fe656ebd4e PPC: Clean up misuse of qdev_init() in kvm-openpic creation
We call ppce500_init_mpic_kvm() to create a "kvm-openpic".  If it
fails, we call ppce500_init_mpic_qemu() to fall back to plain
"openpic".

ppce500_init_mpic_kvm() uses qdev_init().  qdev_init()'s error
handling has an unwanted side effect: it calls qerror_report_err(),
which prints to stderr.  Looks like an error, but isn't.

In QMP context, it would stash the error in the monitor instead,
making the QMP command fail.  Fortunately, it's only called from board
initialization, never in QMP context.

Clean up by cutting out the qdev_init() middle-man: set property
"realized" directly.

While there, improve the error message when we can't satisfy an
explicit user request for "kvm-openpic", and exit(1) instead of
abort().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 15:00:01 +01:00
David Gibson 74e5ae284b pseries: Export RTC time via QOM
On x86, the guest's RTC can be read with QMP, either from the RTC device's
"date" property or via the "rtc-time" property on the machine (which is an
alias to the former).  This is set up in the mc146818rtc driver, and
doesn't work on other targets.

This patch adds a similar "date" property to the pseries machine's RTAS RTC
and adds a compatible alias to the machine.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 15:00:00 +01:00
David Gibson 880ae7de59 pseries: Move rtc_offset into RTC device's state structure
The initial creation of the PAPR RTC qdev class left a wart - the rtc's
offset was left in the sPAPREnvironment structure, accessed via a global.

This patch moves it into the RTC device's own state structure, were it
belongs.  This requires a small change to the migration stream format.  In
order to handle incoming streams from older versions, we also need to
retain the rtc_offset field in the sPAPREnvironment structure, so that it
can be loaded into via the vmsd, then pushed into the RTC device.

Since we're changing the migration format, this also takes the opportunity
to:

  * Change the rtc offset from a value in seconds to a value in
    nanoseconds, allowing nanosecond offsets between host and guest
    rtc time, if desired.

  * Remove both the already unused "next_irq" field and now unused
    "rtc_offset" field from the new version of the spapr migration
    stream

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 14:59:58 +01:00
David Gibson 28df36a13a pseries: Make the PAPR RTC a qdev device
At present the PAPR RTC isn't a "device" as such - it's accessed only via
firmware/hypervisor calls, and is handled in the sPAPR core code.  This
becomes inconvenient as we extend it in various ways.

This patch makes the PAPR RTC a separate device in the qemu device model.

For now, the only piece of device state - the rtc_offset - is still kept in
the global sPAPREnvironment structure.  That's clearly wrong, but leaving
it to be fixed in a following patch makes for a clearer separation between
the internal re-organization of the device, and the behavioural changes
(because the migration stream format needs to change slightly when the
offset is moved into the device's own state).

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 14:59:58 +01:00
David Gibson f01c5d8477 pseries: Make RTAS time of day functions respect -rtc options
In the 'pseries' machine the real time clock is provided by a
paravirtualized firmware interface rather than a device per se; the RTAS
get-time-of-day and set-time-of-day calls.

Out current implementations of those work directly off host time (with
an offset), not respecting options such as clock=vm which can be
specified in the -rtc command line option.

This patch reworks the RTAS RTC code to respect those options, primarily
by basing them on the qemu_clock_get_ns(rtc_clock) function instead of
directly on qemu_get_timedate() (which essentially handles host time, not
virtual rtc time).

As a bonus, this means our get-time-of-day function now also returns
nanoseconds.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 14:59:58 +01:00
David Gibson e5dad1d7d1 pseries: Add spapr_rtc_read() helper function
The virtual RTC time is used in two places in the pseries machine.  First
is in the RTAS get-time-of-day function which returns the RTC time to the
guest.  Second is in the spapr events code which is used to timestamp
event messages from the hypervisor to the guest.

Currently both call qemu_get_timedate() directly, but we want to change
that so we can properly handle the various -rtc options.  In preparation,
create a helper function to return the virtual RTC time.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 14:59:57 +01:00
David Gibson bbade20633 pseries: Add more parameter validation in RTAS time of day functions
Currently, the RTAS time of day functions only partially validate the
number of parameters they receive and return.  Because of how the
parameters are used, this is unlikely to lead to a crash, but it's messy.

This patch adds the missing checks.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 14:59:56 +01:00
David Gibson 12f421745c pseries: Move sPAPR RTC code into its own file
At the moment the RTAS (firmware/hypervisor) time of day functions are
implemented in spapr_rtas.c along with a bunch of other things.  Since
we're going to be expanding these a bit, move the RTAS RTC related code
out into new file spapr_rtc.c.  Also add its own initialization function,
spapr_rtc_init() called from the main machine init routine.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 14:59:56 +01:00
Alexey Kardashevskiy b194df478a spapr-pci: Enable huge BARs
At the moment sPAPR only supports 512MB window for MMIO BARs. However
modern devices might want bigger 64bit BARs.

This extends MMIO window from 512MB to 62GB (aligned to
SPAPR_PCI_WINDOW_SPACING) and advertises it in 2 records in
the PHB "ranges" property. 32bit gets the space from
SPAPR_PCI_MEM_WIN_BUS_OFFSET till the end of 4GB, 64bit gets the rest
of the space. If no space is left, 64bit range is not advertised.

The MMIO space size is set to old value of 0x20000000 by default
for pseries machines older than 2.3.

The approach changes the device tree which is a guest visible change, however
it won't break migration as:
1. we do not support migration to older QEMU versions
2. migration to newer QEMU will migrate the device tree as well and since
the new layout only extends the old one and does not change address mappigns,
no breakage is expected here too.

SLOF change is required to utilize this extension.

Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 14:59:54 +01:00
Alexey Kardashevskiy 3dab024430 spapr: Add pseries-2.3 machine
The next patch will make MMIO space bigger and keep the old value for
older pseries machines.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 14:59:54 +01:00
David Gibson 3e4ac96871 pseries: Limit PCI host bridge "index" value
pseries guests can have large numbers of PCI host bridges.  To avoid the
user having to specify a number of different configuration values for every
one, the device supports an "index" property which is a shorthand setting
the various window and configuration addresses from a predefined sensible
set.

There are some problems with the details at present:
  * The "index" propery is signed, but negative values will create PCI
windows below where we expect, potentially colliding with other devices
  * No limit is imposed on the "index" property and large values can
translate to extremely large window addresses.  With PCI passthrough in
particular this can mean we exceed various mapping and physical address
limits causing the guest host bridge to not work in strange ways.

This patch addresses this, by making "index" unsigned, and imposing a
limit.  Currently the limit allows indices from 0..255 which is probably
enough host bridges for the time being.  It's fairly easy to extend if
we discover we need more.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 14:59:54 +01:00
Alexey Kardashevskiy ee9a569ab8 spapr_vio/spapr_iommu: Move VIO bypass where it belongs
Instead of tweaking a TCE table device by adding there a bypass flag,
let's add an alias to RAM and IOMMU memory region, and enable/disable
those according to the selected bypass mode.
This way IOMMU memory region can have size of the actual window rather
than ram_size which is essential for upcoming DDW support.

This moves bypass logic to VIO layer and keeps @bypass flag in TCE table
for migration compatibility only. This replaces spapr_tce_set_bypass()
calls with explicit assignment to avoid confusion as the function could
do something more that just syncing the @bypass flag.

This adds a pointer to VIO device into the sPAPRTCETable struct to provide
the sPAPRTCETable device a way to update bypass mode for the VIO device.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 14:59:52 +01:00
Peter Maydell 2dffe5516e NUMA fixes queue
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Merge remote-tracking branch 'remotes/ehabkost/tags/numa-pull-request' into staging

NUMA fixes queue

# gpg: Signature made Mon Feb 23 19:28:42 2015 GMT using RSA key ID 984DC5A6
# gpg: Can't check signature: public key not found

* remotes/ehabkost/tags/numa-pull-request:
  numa: Rename set_numa_modes() to numa_post_machine_init()
  numa: Rename option parsing functions
  numa: Move QemuOpts parsing to set_numa_nodes()
  numa: Make max_numa_nodeid static
  numa: Move NUMA globals to numa.c
  vl.c: Remove unnecessary zero-initialization of NUMA globals
  numa: Move NUMA declarations from sysemu.h to numa.h

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-03-02 12:13:45 +00:00
Peter Maydell 3d30395f7f usb: error handling fixes from Markus, make sysbus ehci arm-only.
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-20150218-1' into staging

usb: error handling fixes from Markus, make sysbus ehci arm-only.

# gpg: Signature made Wed Feb 18 09:54:13 2015 GMT using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-usb-20150218-1:
  Make sysbus EHCI devices ARM only by default
  PPC: Don't use legacy -usbdevice support for setting up board
  r2d: Don't use legacy -usbdevice support for setting up board
  usb: Change usb_create_simple() to abort on failure
  usb: Suppress bogus error when automatic usb-hub creation fails
  usb: Do not prefix error_setg() messages with "Error: "
  usb: Improve -usbdevice error reporting a bit
  usb: usb_create() can't fail, drop useless error handling

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-02-25 11:54:15 +00:00
Peter Maydell 73104fd399 - vhost-scsi: add bootindex property
- RCU: fix MemoryRegion lifetime issues in PCI; document the rules;
 convert of AddressSpaceDispatch and RAMList
 - KVM: add kvm_exit reasons for aarch64
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

- vhost-scsi: add bootindex property
- RCU: fix MemoryRegion lifetime issues in PCI; document the rules;
convert of AddressSpaceDispatch and RAMList
- KVM: add kvm_exit reasons for aarch64

# gpg: Signature made Mon Feb 16 16:32:32 2015 GMT using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (21 commits)
  Convert ram_list to RCU
  exec: convert ram_list to QLIST
  cosmetic changes preparing for the following patches
  exec: protect mru_block with RCU
  rcu: add g_free_rcu
  rcu: introduce RCU-enabled QLIST
  exec: RCUify AddressSpaceDispatch
  exec: make iotlb RCU-friendly
  exec: introduce cpu_reload_memory_map
  docs: clarify memory region lifecycle
  pci: split shpc_cleanup and shpc_free
  pcie: remove mmconfig memory leak and wrap mmconfig update with transaction
  memory: keep the owner of the AddressSpace alive until do_address_space_destroy
  rcu: run RCU callbacks under the BQL
  rcu: do not let RCU callbacks pile up indefinitely
  vhost-scsi: set the bootable value of channel/target/lun
  vhost-scsi: add a property for booting
  vhost-scsi: expose the TYPE_FW_PATH_PROVIDER interface
  vhost-scsi: add bootindex property
  qdev: support to get a device firmware path directly
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-02-24 13:58:18 +00:00
Eduardo Habkost e35704ba9c numa: Move NUMA declarations from sysemu.h to numa.h
Not all sysemu.h users need the NUMA declarations, and keeping them in a
separate file makes it easier to see what are the interfaces provided by
numa.c.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2015-02-23 15:39:27 -03:00
Markus Armbruster c86580b889 PPC: Don't use legacy -usbdevice support for setting up board
It's tempting, because usbdevice_create() is so simple to use.  But
there's a lot of unwanted complexity behind the simple interface.
Switch to usb_create_simple().

Cc: Alexander Graf <agraf@suse.de>
Cc: qemu-ppc@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-02-18 10:53:10 +01:00
Paolo Bonzini 79e2b9aecc exec: RCUify AddressSpaceDispatch
Note that even after this patch, most callers of address_space_*
functions must still be under the big QEMU lock, otherwise the memory
region returned by address_space_translate can disappear as soon as
address_space_translate returns.  This will be fixed in the next part
of this series.

Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-02-16 17:30:19 +01:00
Markus Armbruster 5f1d1fc592 spapr_vio: Pair g_malloc() with g_free(), not free()
Spotted by Coverity with preview checker ALLOC_FREE_MISMATCH enabled
and my "coverity: Model g_free() isn't necessarily free()" model patch
applied.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-02-10 09:27:20 +03:00
Gonglei 627b84f406 fw_cfg: fix typos in comments: patch -> path
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-02-10 09:27:19 +03:00
Marcel Apfelbaum 75c74ccbe1 hw/ppc/mac_newworld: simplify usb controller creation logic
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:29 +01:00
Marcel Apfelbaum 4ee9ced979 hw/ppc/spapr: simplify usb controller creation logic
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:29 +01:00
Marcel Apfelbaum b8cbc738de hw/ppc/mac_newworld: QOMified mac99 machines
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:29 +01:00
Marcel Apfelbaum 09f28e5b51 hw/usb: simplified usb_enabled
The argument is not longer used and the implementation
uses now QOM instead of QemuOpts.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:29 +01:00
Marcel Apfelbaum c760dbb9dc hw/ppc: modified the condition for usb controllers to be created for some ppc machines
Some ppc machines create a default usb controller based on a 'machine condition'.
Until now the logic was: create the usb controller if:
 -  the usb option was supplied in cli and value is true or
 -  the usb option was absent and both set_defaults and the machine
    condition were true.

Modified the logic to:
Create the usb controller if:
 - the machine condition is true and defaults are enabled or
 - the usb option is supplied and true.

The main for this is to simplify the usb_enabled method.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:28 +01:00
Peter Maydell 2f285bdd54 target-ppc: Cast ssize_t to size_t before printing with %zx
The mingw32 compiler complains about trying to print variables of type
ssize_t with the %z format string specifier. Since we're printing it
as unsigned hex anyway, cast to size_t to silence the warning.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:28 +01:00
Amit Tomar 82e345f57e PPC: e500: Fix GPIO controller interrupt number
The GPIO controller lives at IRQ 47, not 43 on real hardware. This is a problem
because IRQ 43 is occupied by the I2C controller which we want to implement
next, so we'd have a conflict on that IRQ number.

Move the GPIO controller to IRQ 47 where it belongs.

Signed-off-by: Amit Singh Tomar <amit.tomar@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:28 +01:00
David Gibson 5f9490de56 PPC: Fix crash on spapr_tce_table_finalize()
spapr_tce_table_finalize() can SEGV if the object was not previously
realized.  In particular this can be triggered by running
         qemu-system-ppc -device spapr-tce-table,?

The basic problem is that we have mismatched initialization versus
finalization: spapr_tce_table_finalize() is attempting to undo things that
are done in spapr_tce_table_realize(), not an instance_init function.

Therefore, replace spapr_tce_table_finalize() with
spapr_tce_table_unrealize().

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Cc: qemu-stable@nongnu.org
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:26 +01:00
Paolo Bonzini 77bad151fb ppc: do not use get_clock_realtime()
Use the external qemu-timer API instead.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:26 +01:00
Samuel Mendoza-Jonas e6b8fd246c spapr: Fix stale HTAB during live migration (TCG)
If a TCG guest reboots during a running migration HTAB entries are not
marked dirty, and the destination boots with an invalid HTAB.

When a reboot occurs, explicitly mark the current HTAB dirty after
clearing it.

Signed-off-by: Samuel Mendoza-Jonas <sam.mj@au1.ibm.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:26 +01:00
Samuel Mendoza-Jonas 338c25b692 spapr: Fix integer overflow during migration (TCG)
The n_valid and n_invalid fields are unsigned short integers but it is
possible to have more than 65535 entries in a contiguous hunk, overflowing
the field. This results in an incorrect HTAB being sent to the destination
during migration.

Signed-off-by: Samuel Mendoza-Jonas <sam.mj@au1.ibm.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:26 +01:00
Samuel Mendoza-Jonas 01a579729b spapr: Fix stale HTAB during live migration (KVM)
If a guest reboots during a running migration, changes to the
hash page table are not necessarily updated on the destination.
Opening a new file descriptor to the HTAB forces the migration
handler to resend the entire table.

Signed-off-by: Samuel Mendoza-Jonas <sam.mj@au1.ibm.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:26 +01:00
Alexander Graf cb3778a045 PPC: e500 pci host: Add support for ATMUs
The e500 PCI controller has configurable windows that allow a guest OS
to selectively map parts of the PCI bus space to CPU address space and
to selectively map parts of the CPU address space for DMA requests into
PCI visible address ranges.

So far, we've simply assumed that this mapping is 1:1 and ignored it.

However, the PCICSRBAR (CCSR mapped in PCI bus space) always has to live
inside the first 32bits of address space. This means if we always treat
all mappings as 1:1, this map will collide with our RAM map from the CPU's
point of view.

So this patch adds proper ATMU support which allows us to keep the PCICSRBAR
below 32bits local to the PCI bus and have another, different window to PCI
BARs at the upper end of address space. We leverage this on e500plat though,
mpc8544ds stays virtually 1:1 like it was before, but now also goes via ATMU.

With this patch, I can run guests with lots of RAM and not coincidently access
MSI-X mappings while I really want to access RAM.

Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:24 +01:00
Alexander Graf 44045ce974 PPC: mpc8554ds: Tell user about exceeding RAM limits
The mpc8544ds board only supports up to 3GB of RAM due to its limited
address space.

When the user requests more, abort and tell him that he should use less.

Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:24 +01:00
Alexander Graf e6b4e5f479 PPC: e500: Move CCSR and MMIO space to upper end of address space
On e500 we're basically guaranteed to have 36bits of physical address space
available for our enjoyment. Older chips (like the mpc8544) only had 32bits,
but everything from e500v2 onwards bumped it up.

It's reasonably safe to assume that if you're using the PV machine, your guest
kernel is configured to support 36bit physical address space. So in order to
support more guest RAM, we can move CCSR and other MMIO windows right below the
end of our 36bit address space, just like later SoC versions of e500 do.

With this patch, I'm able to successfully spawn an e500 VM with -m 48G.

Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:24 +01:00
Alexander Graf 2eaaac1f01 PPC: e500: Move CCSR definition to params
We want to have different MMIO region offsets for the mpc8544ds machine
and our e500 PV machine, so move the definitions of those into the machine
specific params struct.

Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:24 +01:00
Peter Maydell ab0302ee76 target-arm queue:
* enable 32-bit EL3 (TrustZone) for vexpress and virt boards
  * add fw_cfg device to virt board for UEFI firmware config
  * support passing commandline kernel/initrd to firmware
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20141223' into staging

target-arm queue:
 * enable 32-bit EL3 (TrustZone) for vexpress and virt boards
 * add fw_cfg device to virt board for UEFI firmware config
 * support passing commandline kernel/initrd to firmware

# gpg: Signature made Tue 23 Dec 2014 13:50:33 GMT using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"

* remotes/pmaydell/tags/pull-target-arm-20141223: (31 commits)
  hw/arm/virt: enable passing of EFI-stubbed kernel to guest UEFI firmware
  hw/arm: pass pristine kernel image to guest firmware over fw_cfg
  hw/loader: split out load_image_gzipped_buffer()
  arm: add fw_cfg to "virt" board
  fw_cfg_mem: expose the "data_width" property with fw_cfg_init_mem_wide()
  fw_cfg_mem: introduce the "data_width" property
  exec: allows 8-byte accesses in subpage_ops
  fw_cfg_mem: flip ctl_mem_ops and data_mem_ops to DEVICE_BIG_ENDIAN
  fw_cfg_mem: max access size and region size are the same for data register
  fw_cfg: move boards to fw_cfg_init_io() / fw_cfg_init_mem()
  fw_cfg: hard separation between the MMIO and I/O port mappings
  target-arm: add cpu feature EL3 to CPUs with Security Extensions
  target-arm: Disable EL3 on unsupported machines
  target-arm: Breakout integratorcp and versatilepb cpu init
  target-arm: Set CPU has_el3 prop during virt init
  target-arm: Enable CPU has_el3 prop during VE init
  target-arm: Add arm_boot_info secure_boot control
  target-arm: Add ARMCPU secure property
  target-arm: Add feature unset function
  target-arm: Add virt machine secure property
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-23 15:05:22 +00:00
Peter Maydell 03de06dde5 VFIO updates:
- Conversion to tracepoints (Eric Auger)
 - Fix memory listener address space (Frank Blaschka)
 - Move to hw/vfio/ and split common vs pci (Eric Auger & Kim Phillips)
 - Trivial error_report() fixes (Alex Williamson)
 
 In addition to enabling S390 with the address space fix and updating
 to use tracepoints rather than compile time debug, this set of patches
 moves hw/misc/vfio.c to hw/vfio/ and paves the way for vfio-platform
 support by splitting common functionality from PCI specific code.
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Merge remote-tracking branch 'remotes/awilliam/tags/vfio-update-20141222.0' into staging

VFIO updates:
- Conversion to tracepoints (Eric Auger)
- Fix memory listener address space (Frank Blaschka)
- Move to hw/vfio/ and split common vs pci (Eric Auger & Kim Phillips)
- Trivial error_report() fixes (Alex Williamson)

In addition to enabling S390 with the address space fix and updating
to use tracepoints rather than compile time debug, this set of patches
moves hw/misc/vfio.c to hw/vfio/ and paves the way for vfio-platform
support by splitting common functionality from PCI specific code.

# gpg: Signature made Mon 22 Dec 2014 20:19:43 GMT using RSA key ID 3BB08B22
# gpg: Good signature from "Alex Williamson <alex.williamson@redhat.com>"
# gpg:                 aka "Alex Williamson <alex@shazbot.org>"
# gpg:                 aka "Alex Williamson <alwillia@redhat.com>"
# gpg:                 aka "Alex Williamson <alex.l.williamson@gmail.com>"

* remotes/awilliam/tags/vfio-update-20141222.0:
  vfio: Cleanup error_report()s
  hw/vfio: create common module
  hw/vfio/pci: use name field in format strings
  hw/vfio/pci: rename group_list into vfio_group_list
  hw/vfio/pci: split vfio_get_device
  hw/vfio/pci: Introduce VFIORegion
  hw/vfio/pci: handle reset at VFIODevice
  hw/vfio/pci: add type, name and group fields in VFIODevice
  hw/vfio/pci: introduce minimalist VFIODevice with fd
  hw/vfio/pci: generalize mask/unmask to any IRQ index
  hw/vfio/pci: Rename VFIODevice into VFIOPCIDevice
  vfio: move hw/misc/vfio.c to hw/vfio/pci.c Move vfio.h into include/hw/vfio
  vfio: fix adding memory listener to the right address space
  vfio: migration to trace points

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-23 14:01:14 +00:00
Laszlo Ersek 66708822cd fw_cfg: move boards to fw_cfg_init_io() / fw_cfg_init_mem()
This allows us to drop the fw_cfg_init() shim and to enforce the possible
mappings at compile time.

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1419250305-31062-3-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-22 23:39:15 +00:00
Marcel Apfelbaum 49d2e648e8 machine: remove qemu_machine_opts global list
QEMU has support for options per machine, keeping
a global list of options is no longer necessary.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Greg Bellows <greg.bellows@linaro.org>
Message-id: 1418217570-15517-2-git-send-email-marcel.a@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-22 23:12:27 +00:00
Gonglei ddcd55316f bootdevice: add Error **errp argument for QEMUBootSetHandler
It will be useful for checking when we change traditional
boot order dynamically and propagate error message
to the monitor.
For x86 architecture, we pass &local_err to set_boot_dev()
when vm startup in pc_coms_init().

Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: qemu-ppc@nongnu.org
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2014-12-22 14:39:21 +08:00
Kim Phillips cf7087db10 vfio: move hw/misc/vfio.c to hw/vfio/pci.c Move vfio.h into include/hw/vfio
This is done in preparation for the addition of VFIO platform
device support.

Signed-off-by: Kim Phillips <kim.phillips@linaro.org>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2014-12-19 15:24:06 -07:00
Alexander Graf 9e3f973335 spapr: Allow dynamic creation of PHB
Now that we finally check for presence of dangling sysbus devices, make check
started complaining that the sPAPR PHB is one such device.

However, it really isn't. The spapr PHB is not really a traditional sysbus
device, but much more a special spapr pv device which is already able to get
created dynamically.

Move spapr to its own dynamic sysbus check handling and allow PHB devices to
get allocated dynamically.

Signed-off-by: Alexander Graf <agraf@suse.de>
2014-11-04 23:26:15 +01:00
Alexander Graf fdfb7f2cdb e500: Add support for eTSEC in device tree
This patch adds support to expose eTSEC devices in the dynamically created
guest facing device tree. This allows us to expose eTSEC devices into guests
without changes in the machine file.

Because we can now tell the guest about eTSEC devices this patch allows the
user to specify eTSEC devices via -device at all.

Signed-off-by: Alexander Graf <agraf@suse.de>
2014-11-04 23:26:15 +01:00
Alexander Graf f70873438d PPC: e500: Support dynamically spawned sysbus devices
For e500 our approach to supporting dynamically spawned sysbus devices is to
create a simple bus from the guest's point of view within which we map those
devices dynamically.

We allocate memory regions always within the "platform" hole in address
space and map IRQs to predetermined IRQ lines that are reserved for platform
device usage.

This maps really nicely into device tree logic, so we can just tell the
guest about our virtual simple bus in device tree as well.

Signed-off-by: Alexander Graf <agraf@suse.de>
2014-11-04 23:26:14 +01:00
Peter Maydell f8833a37c0 hw/ppc/spapr_pci.c: Avoid functions not in glib 2.12 (g_hash_table_iter_*)
The g_hash_table_iter_* functions for iterating through a hash table
are not present in glib 2.12, which is our current minimum requirement.
Rewrite the code to use g_hash_table_foreach() instead.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-11-04 23:26:13 +01:00
Alexander Graf 016f775898 PPC: E500: Hook up power off GPIO to GPIO controller
Now that we have a working GPIO controller on the virt machine, we can use
one pin to notify QEMU that the guests wants to power off the system.

Signed-off-by: Alexander Graf <agraf@suse.de>
2014-11-04 23:26:13 +01:00
Alexander Graf b88e77f493 PPC: E500: Instantiate MPC8XXX gpio controller on virt machine
With the e500 virt machine, we don't have to adhere to the exact hardware
layout of an mpc8544ds board. So there we can just add a qoriq compatible
GPIO controller into the system that we can add a power off hook to.

Signed-off-by: Alexander Graf <agraf@suse.de>
2014-11-04 23:26:12 +01:00
Peter Maydell bf362e9610 hw/pci/ppc4xx_pci.c: Remove unused pci4xx_cfgaddr_read/write/ops
The MemoryRegionOps struct pci4xx_cfgaddr_ops and the read and
write functions it references are all unused; remove them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-11-04 23:26:12 +01:00
David Gibson 4aee73623d spapr: Cleanup machine naming conventions, and prepare for 2.2 release
As of qemu-2.1, spapr/pseries, has a set of versioned machine classes to
represent the machine type as it appeared to the guest in different qemu
versions.  This allows for safe migration of guests between current and
future qemu versions.

However, these are organized a bit differently from those for PC: on PC,
the default plain "pc" machine type is just an alias for the most recent
versioned machine type.  In sPAPR, it names the base machine class from
which the versioned types are derived.

The PC approach is preferable; it makes it clearer which explicit version
is the current one.  Additionally updating the "current" machine as the
base class makes it even more likely than otherwise to incorrectly alter
the versioned machines' behaviour when updating the current machine.

Therefore this patch changes sPAPR to the PC approach - the base class
becomes abstract, and plain "pseries" becomes an alias for the most
recent versioned machine class.  Since qemu-2.1 is now released, we also
create a new pseries-2.2 machine type, to incorporate changes during this
development cycle (for now it is identical to pseries-2.1).

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-11-04 23:26:11 +01:00
David Gibson 0691e8ebce target-ppc: virtex-ml507 machine type should depend on CONFIG_XILINX
The virtex-ml507 is a Xilinx CPU based system, and requires several sub
devices which are only included with CONFIG_XILINX.  Therefore, it should
only be compiled if CONFIG_XILINX is set.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-11-04 23:26:11 +01:00
Peter Maydell 949ca9e479 pc, virtio, misc bugfixes
A bunch of minor bugfixes all over the place.
 
 changes from v2:
     added cpu hotplug rework
     added default vga type switch
     more fixes
 changes from v1:
     fix for test re-generation script
     add missing acks to two patches
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pc, virtio, misc bugfixes

A bunch of minor bugfixes all over the place.

changes from v2:
    added cpu hotplug rework
    added default vga type switch
    more fixes
changes from v1:
    fix for test re-generation script
    add missing acks to two patches

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Mon 03 Nov 2014 16:33:13 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"

* remotes/mst/tags/for_upstream: (28 commits)
  vga: flip qemu 2.2 pc machine types from cirrus to stdvga
  vga: add default display to machine class
  vhost-user: fix mmap offset calculation
  hw/i386/acpi-build.c: Fix memory leak in acpi_build_tables_cleanup()
  smbios: Encode UUID according to SMBIOS specification
  pc: Add pc_compat_2_1() function
  hw/virtio/vring/event_idx: fix the vring_avail_event error
  hw/pci: fixed hotplug crash when using rombar=0 with devices having romfile
  hw/pci: fixed error flow in pci_qdev_init
  -machine vmport=off: Allow disabling of VMWare ioport emulation
  acpi/cpu-hotplug: introduce helper function to keep bit setting in one place
  cpu-hotplug: rename function for better readability
  qom/cpu: remove the unused CPU hot-plug notifier
  pc: Update rtc_cmos in pc_cpu_plug
  pc: add cpu hotplug handler to PC_MACHINE
  acpi:piix4: convert cpu hotplug to hotplug_handler API
  acpi:ich9: convert cpu hotplug to hotplug_handler API
  acpi/cpu: add cpu hotplug callback function to match hotplug_handler API
  acpi: create separate file for TCPA log
  tests: fix rebuild-expected-aml.sh for acpi-test rename
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-11-03 22:51:08 +00:00