bb9986452 "spapr_pci: Advertise access to PCIe extended config space"
allowed guests to access the extended config space of PCI Express devices
via the PAPR interfaces, even though the paravirtualized bus mostly acts
like plain PCI.
However, that patch enabled access unconditionally, including for existing
machine types, which is an unwise change in behaviour. This patch limits
the change to pseries-2.9 (and later) machine types.
Suggested-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This is the same as v3 posted a few days ago except with a few extra
Reviewed-by tags added.
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Merge remote-tracking branch 'remotes/stsquad/tags/pull-mttcg-fixups-090317-1' into staging
Fix-ups for MTTCG regressions for 2.9
This is the same as v3 posted a few days ago except with a few extra
Reviewed-by tags added.
# gpg: Signature made Thu 09 Mar 2017 10:45:18 GMT
# gpg: using RSA key 0xFBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>"
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44
* remotes/stsquad/tags/pull-mttcg-fixups-090317-1:
hw/intc/arm_gic: modernise the DPRINTF
target/arm/helper: make it clear the EC field is also in hex
target-i386: defer VMEXIT to do_interrupt
target/mips: hold BQL for timer interrupts
translate-all: exit cpu_restore_state early if translating
target/xtensa: hold BQL for interrupt processing
s390x/misc_helper.c: wrap IO instructions in BQL
sparc/sparc64: grab BQL before calling cpu_check_irqs
cpus.c: add additional error_report when !TARGET_SUPPORT_MTTCG
target/i386/cpu.h: declare TCG_GUEST_DEFAULT_MO
vl/cpus: be smarter with icount and MTTCG
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
While I was debugging the icount issues I realised a bunch of the
messages look quite similar. I've fixed this by including __func__ in
the debug print. At the same time I move the a modern if (GATE) style
printf which ensures the compiler can check for format string errors
even if the code gets optimised away in the non-DEBUG_GIC case.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
IRQ modification is part of device emulation and should be done while
the BQL is held to prevent races when MTTCG is enabled. This adds
assertions in the hw emulation layer and wraps the calls from helpers
in the BQL.
Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Make sure we don't leave guest_cursor pointing into nowhere. This might
lead to (rare) live migration failures, due to target trying to restore
the cursor from the stale pointer.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1421788
Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 1488789111-27340-1-git-send-email-kraxel@redhat.com
The strict td link limit added by commit "95ed569 usb: ohci: limit the
number of link eds" causes problems with macos guests. Lets raise the
limit.
Reported-by: Programmingkid <programmingkidx@gmail.com>
Reported-by: Howard Spoelstra <hsp.cat7@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: John Arbuckle <programmingkidx@gmail.com>
Message-id: 1488876018-31576-1-git-send-email-kraxel@redhat.com
- missing O_NOFOLLOW flag for CVE-2016-960
- build break with older glibc that don't have O_PATH and AT_EMPTY_PATH
- various bugs reported by Coverity
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Merge remote-tracking branch 'remotes/gkurz/tags/fixes-for-2.9' into staging
Fixes issues that got merged with the latest pull request:
- missing O_NOFOLLOW flag for CVE-2016-960
- build break with older glibc that don't have O_PATH and AT_EMPTY_PATH
- various bugs reported by Coverity
# gpg: Signature made Mon 06 Mar 2017 17:51:29 GMT
# gpg: using DSA key 0x02FC3AEB0101DBC2
# gpg: Good signature from "Greg Kurz <groug@kaod.org>"
# gpg: aka "Greg Kurz <groug@free.fr>"
# gpg: aka "Greg Kurz <gkurz@linux.vnet.ibm.com>"
# gpg: aka "Gregory Kurz (Groug) <groug@free.fr>"
# gpg: aka "[jpeg image of size 3330]"
# 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: 2BD4 3B44 535E C0A7 9894 DBA2 02FC 3AEB 0101 DBC2
* remotes/gkurz/tags/fixes-for-2.9:
9pfs: fix vulnerability in openat_dir() and local_unlinkat_common()
9pfs: fix O_PATH build break with older glibc versions
9pfs: don't use AT_EMPTY_PATH in local_set_cred_passthrough()
9pfs: fail local_statfs() earlier
9pfs: fix fd leak in local_opendir()
9pfs: fix bogus fd check in local_remove()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We should pass O_NOFOLLOW otherwise openat() will follow symlinks and make
QEMU vulnerable.
While here, we also fix local_unlinkat_common() to use openat_dir() for
the same reasons (it was a leftover in the original patchset actually).
This fixes CVE-2016-9602.
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
When O_PATH is used with O_DIRECTORY, it only acts as an optimization: the
openat() syscall simply finds the name in the VFS, and doesn't trigger the
underlying filesystem.
On systems that don't define O_PATH, because they have glibc version 2.13
or older for example, we can safely omit it. We don't want to deactivate
O_PATH globally though, in case it is used without O_DIRECTORY. The is done
with a dedicated macro.
Systems without O_PATH may thus fail to resolve names that involve
unreadable directories, compared to newer systems succeeding, but such
corner case failure is our only option on those older systems to avoid
the security hole of chasing symlinks inappropriately.
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
(added last paragraph to changelog as suggested by Eric Blake)
Signed-off-by: Greg Kurz <groug@kaod.org>
The name argument can never be an empty string, and dirfd always point to
the containing directory of the file name. AT_EMPTY_PATH is hence useless
here. Also it breaks build with glibc version 2.13 and older.
It is actually an oversight of a previous tentative patch to implement this
function. We can safely drop it.
Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Greg Kurz <groug@kaod.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Eric Blake <eblake@redhat.com>
If we cannot open the given path, we can return right away instead of
passing -1 to fstatfs() and close(). This will make Coverity happy.
(Coverity issue CID1371729)
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Daniel P. berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Coverity issue CID1371731
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
This was spotted by Coverity as a fd leak. This is certainly true, but also
local_remove() would always return without doing anything, unless the fd is
zero, which is very unlikely.
(Coverity issue CID1371732)
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Version: GnuPG v1
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Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging
# gpg: Signature made Mon 06 Mar 2017 04:15:17 GMT
# gpg: using RSA key 0xEF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@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: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211
* remotes/jasowang/tags/net-pull-request:
net/filter-mirror: Follow CODING_STYLE
COLO-compare: Fix icmp and udp compare different packet always dump bug
COLO-compare: Optimize compare_common and compare_tcp
COLO-compare: Rename compare function and remove duplicate codes
filter-rewriter: skip net_checksum_calculate() while offset = 0
net/colo: fix memory double free error
vmxnet3: VMStatify rx/tx q_descr and int_state
vmxnet3: Convert ring values to uint32_t's
net/colo-compare: Fix memory free error
colo-compare: Fix removing fds been watched incorrectly in finalization
char: remove the right fd been watched in qemu_chr_fe_set_handlers()
colo-compare: kick compare thread to exit after some cleanup in finalization
colo-compare: use g_timeout_source_new() to process the stale packets
NetRxPkt: Remove code duplication in net_rx_pkt_pull_data()
NetRxPkt: Account buffer with ETH header in IOV length
NetRxPkt: Do not try to pull more data than present
NetRxPkt: Fix memory corruption on VLAN header stripping
eth: Extend vlan stripping functions
net: Remove useless local var pkt
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Looks like my previous batch wasn't quite the last before hard freeze.
This has a handful of bugfixes to go in. They're all genuine
bugfixes, though not regressions in some cases.
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.9-20170306' into staging
ppc patch queue for 2017-03-06
Looks like my previous batch wasn't quite the last before hard freeze.
This has a handful of bugfixes to go in. They're all genuine
bugfixes, though not regressions in some cases.
# gpg: Signature made Mon 06 Mar 2017 04:07:48 GMT
# gpg: using RSA key 0x6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg: aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dgibson/tags/ppc-for-2.9-20170306:
target/ppc: use helper for excp handling
target/ppc: fmadd: add macro for updating flags
target/ppc: fmadd check for excp independently
spapr: ensure that all threads within core are on the same NUMA node
ppc/xics: register reset handlers for the ICP and ICS objects
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Fairly simple mechanical conversion of all fields.
TODO!!!!
The problem is vmxnet3-ring size/cell_size/next are declared as size_t
but written as 32bit.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Acked-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
The index's in the Vmxnet3Ring were migrated as 32bit ints
yet are declared as size_t's. They appear to be derived
from 32bit values loaded from guest memory, so actually
store them as that.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Acked-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This is a refactoring commit that does not change behavior.
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
In case of VLAN stripping ETH header is stored in a
separate chunk and length of IOV should take this into
account.
This patch fixes checksum validation for RX packets
with VLAN header.
Devices affected by this problem: e1000e and vmxnet3.
Cc: qemu-stable@nongnu.org
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
In case of VLAN stripping, ETH header put into a
separate buffer, therefore amont of data copied
from original IOV should be smaller.
Cc: qemu-stable@nongnu.org
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This patch fixed a problem that was introduced in commit eb700029.
When net_rx_pkt_attach_iovec() calls eth_strip_vlan()
this can result in pkt->ehdr_buf being overflowed, because
ehdr_buf is only sizeof(struct eth_header) bytes large
but eth_strip_vlan() can write
sizeof(struct eth_header) + sizeof(struct vlan_header)
bytes into it.
Devices affected by this problem: vmxnet3.
Cc: qemu-stable@nongnu.org
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This has been pointless since commit 605d52e62, which was a
search-and-replace, overlooked the redundancy.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Threads within a core shouldn't be on different
NUMA nodes, so if user has misconfgured command
line, fail QEMU at start up to force user fix it.
For now use the first thread on the core as source
of core's node-id. Later when cpu-numa refactoring
lands it will be switched to core's node-id from
possible_cpus[].
This prevents the same problems as commit 20bb648d
"spapr: Fix default NUMA node allocation for threads",
but for the case of manually configured NUMA node
mappings, instead of just the default case.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The recent changes on the XICS layer removed the XICSState object to
let the sPAPR machine handle the ICP and ICS directly. The reset of
these objects was previously handled by XICSState, which was a SysBus
device, and to keep the same behavior, the ICP and ICS were assigned
to SysbBus.
But that broke the 'info qtree' command in the monitor. 'qtree'
performs a loop on the children of a bus to print their properties and
SysBus devices are expected to be found under SysBus, which is not the
case anymore.
The fix for this problem is to register reset handlers for the ICP and
ICS objects and stop using SysBus for such devices.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Fix the design flaw demonstrated in the previous commit: new method
check_list() lets input visitors report that unvisited input remains
for a list, exactly like check_struct() lets them report that
unvisited input remains for a struct or union.
Implement the method for the qobject input visitor (straightforward),
and the string input visitor (less so, due to the magic list syntax
there). The opts visitor's list magic is even more impenetrable, and
all I can do there today is a stub with a FIXME comment. No worse
than before.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1488544368-30622-26-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This will probably be my last pull request before the hard freeze. It
has some new work, but that has all been posted in draft before the
soft freeze, so I think it's reasonable to include in qemu-2.9.
This batch has:
* A substantial amount of POWER9 work
* Implements the legacy (hash) MMU for POWER9
* Some more preliminaries for implementing the POWER9 radix
MMU
* POWER9 has_work
* Basic POWER9 compatibility mode handling
* Removal of some premature tests
* Some cleanups and fixes to the existing MMU code to make the
POWER9 work simpler
* A bugfix for TCG multiply adds on power
* Allow pseries guests to access PCIe extended config space
This also includes a code-motion not strictly in ppc code - moving
getrampagesize() from ppc code to exec.c. This will make some future
VFIO improvements easier, Paolo said it was ok to merge via my tree.
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.9-20170303' into staging
ppc patch queuye for 2017-03-03
This will probably be my last pull request before the hard freeze. It
has some new work, but that has all been posted in draft before the
soft freeze, so I think it's reasonable to include in qemu-2.9.
This batch has:
* A substantial amount of POWER9 work
* Implements the legacy (hash) MMU for POWER9
* Some more preliminaries for implementing the POWER9 radix
MMU
* POWER9 has_work
* Basic POWER9 compatibility mode handling
* Removal of some premature tests
* Some cleanups and fixes to the existing MMU code to make the
POWER9 work simpler
* A bugfix for TCG multiply adds on power
* Allow pseries guests to access PCIe extended config space
This also includes a code-motion not strictly in ppc code - moving
getrampagesize() from ppc code to exec.c. This will make some future
VFIO improvements easier, Paolo said it was ok to merge via my tree.
# gpg: Signature made Fri 03 Mar 2017 03:20:36 GMT
# gpg: using RSA key 0x6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg: aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dgibson/tags/ppc-for-2.9-20170303:
target/ppc: rewrite f[n]m[add,sub] using float64_muladd
spapr: Small cleanup of PPC MMU enums
spapr_pci: Advertise access to PCIe extended config space
target/ppc: Rework hash mmu page fault code and add defines for clarity
target/ppc: Move no-execute and guarded page checking into new function
target/ppc: Add execute permission checking to access authority check
target/ppc: Add Instruction Authority Mask Register Check
hw/ppc/spapr: Add POWER9 to pseries cpu models
target/ppc/POWER9: Add cpu_has_work function for POWER9
target/ppc/POWER9: Add POWER9 pa-features definition
target/ppc/POWER9: Add POWER9 mmu fault handler
target/ppc: Don't gen an SDR1 on POWER9 and rework register creation
target/ppc: Add patb_entry to sPAPRMachineState
target/ppc/POWER9: Add POWERPC_MMU_V3 bit
powernv: Don't test POWER9 CPU yet
exec, kvm, target-ppc: Move getrampagesize() to common code
target/ppc: Add POWER9/ISAv3.00 to compat_table
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
virtio support for region caches broke a bunch of stuff - fixing most of
it though it's not ideal. Still pondering the right way to fix it.
New: VM gen ID and hotplug for PXB.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
virtio, pc: fixes, features
virtio support for region caches broke a bunch of stuff - fixing most of
it though it's not ideal. Still pondering the right way to fix it.
New: VM gen ID and hotplug for PXB.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Thu 02 Mar 2017 06:19:17 GMT
# gpg: using RSA key 0x281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
# 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:
hw/pxb-pcie: fix PCI Express hotplug support
tests/acpi: update DSDT after last patch
acpi: simplify _OSC
virtio: unbreak virtio-pci with IOMMU after caching ring translations
virtio: add missing region cache init in virtio_load()
virtio: invalidate memory in vring_set_avail_event()
virtio: guard vring access when setting notification
virtio: check for vring setup in virtio_queue_empty
MAINTAINERS: Add VM Generation ID entries
tests: Move reusable ACPI code into a utility file
qmp/hmp: add query-vm-generation-id and 'info vm-generation-id' commands
ACPI: Add Virtual Machine Generation ID support
ACPI: Add vmgenid blob storage to the build tables
docs: VM Generation ID device description
linker-loader: Add new 'write pointer' command
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The PPC MMU types are sometimes treated as if they were a bit field
and sometime as if they were an enum which causes maintenance
problems: flipping bits in the MMU type (which is done on both the 1TB
segment and 64K segment bits) currently produces new MMU type
values that are not handled in every "switch" on it, sometimes causing
an abort().
This patch provides some macros that can be used to filter out the
"bit field-like" bits so that the remainder of the value can be
switched on, like an enum. This allows removal of all of the
"degraded" types from the list and should ease maintenance.
Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The (paravirtual) PCI host bridge on the 'pseries' machine in most
regards acts like a regular PCI bus, rather than a PCIe bus. Despite
this, though, it does allow access to the PCIe extended config space.
We already implemented the RTAS methods to allow this access.. but
forgot to put the markers into the device tree so that guest's know it
is there. This adds them in.
With this, a pseries guest is able to view extended config space on
(for example an e1000e device. This should be enough to allow guests
to use at least some PCIe devices.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Add POWER9 cpu to list of spapr core models which allows it to be specified
as the cpu model for a pseries guest (e.g. -machine pseries -cpu POWER9).
This now allows a POWER9 cpu to boot to userspace in tcg emulation for a
pseries machine with a legacy kernel.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Add a pa-features definition which includes all of the new fields which
have been added, note we don't claim support for any of these new features
at this stage.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
ISA v3.00 adds the idea of a partition table which is used to store the
address translation details for all partitions on the system. The partition
table consists of double word entries indexed by partition id where the second
double word contains the location of the process table in guest memory. The
process table is registered by the guest via a h-call.
We need somewhere to store the address of the process table so we add an entry
to the sPAPRMachineState struct called patb_entry to represent the second
doubleword of a single partition table entry corresponding to the current
guest. We need to store this value so we know if the guest is using radix or
hash translation and the location of the corresponding process table in guest
memory. Since we only have a single guest per qemu instance, we only need one
entry.
Since the partition table is technically a hypervisor resource we require that
access to it is abstracted by the virtual hypervisor through the get_patbe()
call. Currently the value of the entry is never set (and thus
defaults to 0 indicating hash), but it will be required to both implement
POWER9 kvm support and tcg radix support.
We also add this field to be migrated as part of the sPAPRMachineState as we
will need it on the receiving side as the guest will never tell us this
information again and we need it to perform translation.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Note: The 'postcopy: Update userfaultfd.h header' is part of
Paolo's header update and will disappear if applied after it.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-20170228a' into staging
Migration pull
Note: The 'postcopy: Update userfaultfd.h header' is part of
Paolo's header update and will disappear if applied after it.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
# gpg: Signature made Tue 28 Feb 2017 12:38:34 GMT
# gpg: using RSA key 0x0516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@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: 45F5 C71B 4A0C B7FB 977A 9FA9 0516 331E BC5B FDE7
* remotes/dgilbert/tags/pull-migration-20170228a: (27 commits)
postcopy: Add extra check for COPY function
postcopy: Add doc about hugepages and postcopy
postcopy: Check for userfault+hugepage feature
postcopy: Update userfaultfd.h header
postcopy: Allow hugepages
postcopy: Send whole huge pages
postcopy: Mask fault addresses to huge page boundary
postcopy: Load huge pages in one go
postcopy: Use temporary for placing zero huge pages
postcopy: Plumb pagesize down into place helpers
postcopy: Record largest page size
postcopy: enhance ram_block_discard_range for hugepages
exec: ram_block_discard_range
postcopy: Chunk discards for hugepages
postcopy: Transmit and compare individual page sizes
postcopy: Transmit ram size summary word
migration: fix use-after-free of to_dst_file
migration: Update docs to discourage version bumps
migration: fix id leak regression
migrate: Introduce a 'dc->vmsd' check to avoid segfault for --only-migratable
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
I was hoping to get this pull request squeezed in before the soft
freeze, but I ran into some difficulties during testing. Everything
here was at least posted before the soft freeze, so I'm hoping we can
still merge it for 2.9.
The biggest things here are:
* Cleanups to handling of hashed page tables, that will make
adding support for the POWER9 MMU easier
* Cleanups to the XICS interrupt controller that will make
implementing the powernv machine easier
* TCG implementation of extended overflow and carry handling for
POWER9
It also includes:
* Increasing the CPU limit for pseries to 1024 vCPUs
* Generating proper OF node names in qemu (making hotplug and
coldplug logic closer together)
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.9-20170301' into staging
ppc patch queue for 2017-03-01
I was hoping to get this pull request squeezed in before the soft
freeze, but I ran into some difficulties during testing. Everything
here was at least posted before the soft freeze, so I'm hoping we can
still merge it for 2.9.
The biggest things here are:
* Cleanups to handling of hashed page tables, that will make
adding support for the POWER9 MMU easier
* Cleanups to the XICS interrupt controller that will make
implementing the powernv machine easier
* TCG implementation of extended overflow and carry handling for
POWER9
It also includes:
* Increasing the CPU limit for pseries to 1024 vCPUs
* Generating proper OF node names in qemu (making hotplug and
coldplug logic closer together)
# gpg: Signature made Wed 01 Mar 2017 04:43:06 GMT
# gpg: using RSA key 0x6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg: aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dgibson/tags/ppc-for-2.9-20170301: (50 commits)
Add PowerPC 32-bit guest memory dump support
ppc/xics: rename 'ICPState *' variables to 'icp'
ppc/xics: move InterruptStatsProvider to the sPAPR machine
ppc/xics: move ics-simple post_load under the machine
ppc/xics: remove the XICSState classes
ppc/xics: export the XICS init routines
ppc/xics: move the ICP array under the sPAPR machine
ppc/xics: register the reset handler of ICP objects
ppc/xics: simplify spapr_dt_xics() interface
ppc/xics: use the QOM interface to grab an ICP
ppc/xics: move the cpu_setup() handler under the ICPState class
ppc/xics: simplify the cpu_setup() handler
ppc/xics: move kernel_xics_fd out of KVMXICSState
ppc/xics: extend the QOM interface to handle ICPs
ppc/xics: remove the XICS list of ICS
ppc/xics: register the reset handler of ICS objects
ppc/xics: remove xics_find_source()
ppc/xics: use the QOM interface to resend irqs
ppc/xics: use the QOM interface to get irqs
ppc/xics: use the QOM interface under the sPAPR machine
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add the missing osc method for pxb-pcie devices as APCI spec recommends,
see 6.2.9.1 OSC Implementation Example for PCI Host Bridge Devices, ACPI 3.0a:
It is recommended that a machine with multiple host bridge devices
should report the same capabilities for all host bridges, and also
negotiate control of the features described in the Control Field in
the same way for all host bridges.
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
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>
Our _OSC method has a bunch of unused code loading data
into external CTRL and SUPP fields which are then never
used. Drop this in favor of a single local variable.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Commit c611c76417 ("virtio: add MemoryListener to cache ring
translations") registers a memory listener to dma_as. This may not
work when IOMMU is enabled: dma_as(bus_master_as) were initialized in
pcibus_machine_done() after virtio_realize(). This will cause a
segfault. Fixing this by using pci_device_iommu_address_space()
instead to make sure address space were initialized at this time.
With this fix, IOMMU device were required to be initialized before any
virtio-pci devices.
Fixes: c611c76417 ("virtio: add MemoryListener to cache ring translations")
Cc: Paolo Bonzini <pbonzini@redhat.com>
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>
Commit 97cd965c07 ("virtio: use
VRingMemoryRegionCaches for avail and used rings") switched to a memory
region cache to avoid repeated map/unmap operations.
The virtio_load() process is a little tricky because vring addresses are
serialized in two separate places. VIRTIO 1.0 devices serialize desc
and then a subsection with used and avail. Legacy devices only
serialize desc.
Live migration of VIRTIO 1.0 devices fails on the destination host with:
VQ 0 size 0x80 < last_avail_idx 0x12f8 - used_idx 0x0
Failed to load virtio-blk:virtio
error while loading state for instance 0x0 of device '0000:00:04.0/virtio-blk'
This happens because the memory region cache is only initialized after
desc is loaded and not after the used and avail subsection is loaded.
If the guest chose memory addresses that don't match the legacy ring
layout then the wrong guest memory location is accessed.
Wait until all ring addresses are known before trying to initialize the
region cache. Also clarify the incomplete comment about VIRTIO-1 ring
address subsection.
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Remember to invalidate the avail event field so the memory pages are
marked dirty.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Switching to vring caches exposed an existing bug in
virtio_queue_set_notification(): We can't access vring structures
if they have not been set up yet. This may happen, for example,
for virtio-blk devices with multiple queues: The code will try to
switch notifiers for every queue, but the guest may have only set up
a subset of them.
Fix this by guarding access to the vring memory by checking for
vring.desc. The first aio poll will iron out any remaining
inconsistencies for later-configured queues (buggy legacy drivers).
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
If the vring has not been set up, there is nothing in the virtqueue.
virtio_queue_host_notifier_aio_poll calls virtio_queue_empty even in
this case; we have to filter it out just like virtio_queue_notify_aio_vq.
Reported-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This implements the VM Generation ID feature by passing a 128-bit
GUID to the guest via a fw_cfg blob.
Any time the GUID changes, an ACPI notify event is sent to the guest
The user interface is a simple device with one parameter:
- guid (string, must be "auto" or in UUID format
xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)
Signed-off-by: Ben Warren <ben@skyportsystems.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This allows them to be centrally initialized and destroyed
The "AcpiBuildTables.vmgenid" array will be used to construct the
"etc/vmgenid_guid" fw_cfg blob.
Its contents will be linked into fw_cfg after being built on the
pc_machine_done() -> acpi_setup() -> acpi_build() call path, and dropped
without use on the subsequent, guest triggered, acpi_build_update() ->
acpi_build() call path.
Signed-off-by: Ben Warren <ben@skyportsystems.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This is similar to the existing 'add pointer' functionality, but instead
of instructing the guest (BIOS or UEFI) to patch memory, it instructs
the guest to write the pointer back to QEMU via a writeable fw_cfg file.
Signed-off-by: Ben Warren <ben@skyportsystems.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block layer patches
# gpg: Signature made Tue 28 Feb 2017 20:35:32 GMT
# gpg: using RSA key 0x7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6
* remotes/kevin/tags/for-upstream: (46 commits)
block: Add Error parameter to bdrv_append()
block: Add Error parameter to bdrv_set_backing_hd()
block: Assertions for resize permission
block: Assertions for write permissions
block: Pass BdrvChild to bdrv_aligned_preadv/pwritev and copy-on-read
tests: Remove FIXME comments
nbd/server: Use real permissions for NBD exports
migration/block: Use real permissions
hmp: Request permissions in qemu-io
commit: Add filter-node-name to block-commit
mirror: Add filter-node-name to blockdev-mirror
stream: Use real permissions in streaming block job
mirror: Use real permissions in mirror/active commit block job
blockjob: Factor out block_job_remove_all_bdrv()
block: Allow backing file links in change_parent_backing_link()
block: BdrvChildRole.attach/detach() callbacks
block: Fix pending requests check in bdrv_append()
backup: Use real permissions in backup block job
commit: Use real permissions for HMP 'commit'
commit: Use real permissions in commit block job
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* raspi2: add gpio controller and sdhost controller, with
the wiring so the guest can switch which controller the
SD card is attached to
(this is sufficient to get raspbian kernels to boot)
* GICv3: support state save/restore from KVM
* update Linux headers to 4.11
* refactor and QOMify the ARMv7M container object
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20170228-1' into staging
target-arm queue:
* raspi2: add gpio controller and sdhost controller, with
the wiring so the guest can switch which controller the
SD card is attached to
(this is sufficient to get raspbian kernels to boot)
* GICv3: support state save/restore from KVM
* update Linux headers to 4.11
* refactor and QOMify the ARMv7M container object
# gpg: Signature made Tue 28 Feb 2017 17:11:49 GMT
# gpg: using RSA key 0x3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg: aka "Peter Maydell <pmaydell@gmail.com>"
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* remotes/pmaydell/tags/pull-target-arm-20170228-1: (21 commits)
bcm2835: add sdhost and gpio controllers
bcm2835_gpio: add bcm2835 gpio controller
hw/sd: add card-reparenting function
qdev: Have qdev_set_parent_bus() handle devices already on a bus
hw/intc/arm_gicv3_kvm: Reset GICv3 cpu interface registers
target-arm: Add GICv3CPUState in CPUARMState struct
hw/intc/arm_gicv3_kvm: Implement get/put functions
hw/intc/arm_gicv3_kvm: Add ICC_SRE_EL1 register to vmstate
update Linux headers to 4.11
update-linux-headers: update for 4.11
stm32f205: Rename 'nvic' local to 'armv7m'
stm32f205: Create armv7m object without using armv7m_init()
armv7m: Split systick out from NVIC
armv7m: Don't put core v7M devices under CONFIG_STELLARIS
armv7m: Make bitband device take the address space to access
armv7m: Make NVIC expose a memory region rather than mapping itself
armv7m: Make ARMv7M object take memory region link
armv7m: Use QOMified armv7m object in armv7m_init()
armv7m: QOMify the armv7m container
armv7m: Move NVICState struct definition into header
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
David Gibson
Peter Maydell
Alex Bennée
Gerd Hoffmann
Greg Kurz
Dr. David Alan Gilbert
Dmitry Fleytman
Fam Zheng
Igor Mammedov
Cédric Le Goater
Markus Armbruster
Sam Bobroff
Suraj Jitindar Singh
Marcel Apfelbaum
Michael S. Tsirkin
Jason Wang
Stefan Hajnoczi
Cornelia Huck
Paolo Bonzini
Ben Warren