relaxing the license to LGPLv2+ is intentional.
Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Benoit Canet <benoit.canet@nodalink.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
A bunch of bugfixes - these will make sense for 2.1.1
Initial Intel IOMMU support.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pci, pc fixes, features
A bunch of bugfixes - these will make sense for 2.1.1
Initial Intel IOMMU support.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Tue 02 Sep 2014 16:05:04 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:
vhost_net: start/stop guest notifiers properly
pci: avoid losing config updates to MSI/MSIX cap regs
virtio-net: don't run bh on vm stopped
ioh3420: remove unused ioh3420_init() declaration
vhost_net: cleanup start/stop condition
intel-iommu: add IOTLB using hash table
intel-iommu: add context-cache to cache context-entry
intel-iommu: add supports for queued invalidation interface
intel-iommu: fix coding style issues around in q35.c and machine.c
intel-iommu: add Intel IOMMU emulation to q35 and add a machine option "iommu" as a switch
intel-iommu: add DMAR table to ACPI tables
intel-iommu: introduce Intel IOMMU (VT-d) emulation
iommu: add is_write as a parameter to the translate function of MemoryRegionIOMMUOps
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
QEMU system mode page table walks are expensive. Taken by running QEMU
qemu-system-x86_64 system mode on Intel PIN , a TLB miss and walking a
4-level page tables in guest Linux OS takes ~450 X86 instructions on
average.
QEMU system mode TLB is implemented using a directly-mapped hashtable.
This structure suffers from conflict misses. Increasing the
associativity of the TLB may not be the solution to conflict misses as
all the ways may have to be walked in serial.
A victim TLB is a TLB used to hold translations evicted from the
primary TLB upon replacement. The victim TLB lies between the main TLB
and its refill path. Victim TLB is of greater associativity (fully
associative in this patch). It takes longer to lookup the victim TLB,
but its likely better than a full page table walk. The memory
translation path is changed as follows :
Before Victim TLB:
1. Inline TLB lookup
2. Exit code cache on TLB miss.
3. Check for unaligned, IO accesses
4. TLB refill.
5. Do the memory access.
6. Return to code cache.
After Victim TLB:
1. Inline TLB lookup
2. Exit code cache on TLB miss.
3. Check for unaligned, IO accesses
4. Victim TLB lookup.
5. If victim TLB misses, TLB refill
6. Do the memory access.
7. Return to code cache
The advantage is that victim TLB can offer more associativity to a
directly mapped TLB and thus potentially fewer page table walks while
still keeping the time taken to flush within reasonable limits.
However, placing a victim TLB before the refill path increase TLB
refill path as the victim TLB is consulted before the TLB refill. The
performance results demonstrate that the pros outweigh the cons.
some performance results taken on SPECINT2006 train
datasets and kernel boot and qemu configure script on an
Intel(R) Xeon(R) CPU E5620 @ 2.40GHz Linux machine are shown in the
Google Doc link below.
https://docs.google.com/spreadsheets/d/1eiItzekZwNQOal_h-5iJmC4tMDi051m9qidi5_nwvH4/edit?usp=sharing
In summary, victim TLB improves the performance of qemu-system-x86_64 by
11% on average on SPECINT2006, kernelboot and qemu configscript and with
highest improvement of in 26% in 456.hmmer. And victim TLB does not result
in any performance degradation in any of the measured benchmarks. Furthermore,
the implemented victim TLB is architecture independent and is expected to
benefit other architectures in QEMU as well.
Although there are measurement fluctuations, the performance
improvement is very significant and by no means in the range of
noises.
Signed-off-by: Xin Tong <trent.tong@gmail.com>
Message-id: 1407202523-23553-1-git-send-email-trent.tong@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
1. s390x/kvm: avoid synchronize_rcu's in kernel
----------------------------------------------
The first patches change s390x/kvm code to issue VCPU specific ioctls
from the VCPU thread. This will avoid unnecessary synchronize_rcu in
the kernel, which caused a noticably slowdown with many guest CPUs.
It speeds up all start/restart/reset operations involving cpus
drastically.
2. s390-ccw.img: block size and DASD format support
---------------------------------------------------
The second part changes the s390-ccw bios to IPL (boot) more disk
formats than before. Furthermore a small fix is made to the console
output of the bios.
3. s390: Support for Hotplug of Standby Memory
----------------------------------------------
The third part adds support in s390 for a pool of standby memory,
which can be set online/offline by the guest (ie, via chmem).
The standby pool of memory is allocated as the difference between
the initial memory setting and the maxmem setting.
As part of this work, additional results are provided for the
Read SCP Information SCLP, and new implentation is added for the
Read Storage Element Information, Attach Storage Element,
Assign Storage and Unassign Storage SCLPs, which enables the s390
guest to manipulate the standby memory pool.
This patchset is based on work originally done by Jeng-Fang (Nick)
Wang.
Sample qemu command snippet:
qemu -machine s390-ccw-virtio -m 1024M,maxmem=2048M,slots=32 -enable-kvm
This will allocate 1024M of active memory, and another 1024M
of standby memory. Example output from s390-tools lsmem:
=============================================================================
0x0000000000000000-0x000000000fffffff 256 online no 0-127
0x0000000010000000-0x000000001fffffff 256 online yes 128-255
0x0000000020000000-0x000000003fffffff 512 online no 256-511
0x0000000040000000-0x000000007fffffff 1024 offline - 512-1023
Memory device size : 2 MB
Memory block size : 256 MB
Total online memory : 1024 MB
Total offline memory: 1024 MB
The guest can dynamically enable part or all of the standby pool
via the s390-tools chmem, for example:
chmem -e 512M
And can attempt to dynamically disable:
chmem -d 512M
4. s390x/gdb: various fixes
---------------------------
* Patch 1 fixes a bug where the cc was changed accidentally.
* Patch 2 adds the gdb feature XML files for s390x
* Patch 3 Define acr and fpr registers as coprocessor registers. This allows us
to reuse the feature XML files.
* Patch 4 whitespace fixes
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Merge remote-tracking branch 'remotes/borntraeger/tags/kvm-s390-20140901' into staging
s390x/kvm: Several updates/fixes/features
1. s390x/kvm: avoid synchronize_rcu's in kernel
----------------------------------------------
The first patches change s390x/kvm code to issue VCPU specific ioctls
from the VCPU thread. This will avoid unnecessary synchronize_rcu in
the kernel, which caused a noticably slowdown with many guest CPUs.
It speeds up all start/restart/reset operations involving cpus
drastically.
2. s390-ccw.img: block size and DASD format support
---------------------------------------------------
The second part changes the s390-ccw bios to IPL (boot) more disk
formats than before. Furthermore a small fix is made to the console
output of the bios.
3. s390: Support for Hotplug of Standby Memory
----------------------------------------------
The third part adds support in s390 for a pool of standby memory,
which can be set online/offline by the guest (ie, via chmem).
The standby pool of memory is allocated as the difference between
the initial memory setting and the maxmem setting.
As part of this work, additional results are provided for the
Read SCP Information SCLP, and new implentation is added for the
Read Storage Element Information, Attach Storage Element,
Assign Storage and Unassign Storage SCLPs, which enables the s390
guest to manipulate the standby memory pool.
This patchset is based on work originally done by Jeng-Fang (Nick)
Wang.
Sample qemu command snippet:
qemu -machine s390-ccw-virtio -m 1024M,maxmem=2048M,slots=32 -enable-kvm
This will allocate 1024M of active memory, and another 1024M
of standby memory. Example output from s390-tools lsmem:
=============================================================================
0x0000000000000000-0x000000000fffffff 256 online no 0-127
0x0000000010000000-0x000000001fffffff 256 online yes 128-255
0x0000000020000000-0x000000003fffffff 512 online no 256-511
0x0000000040000000-0x000000007fffffff 1024 offline - 512-1023
Memory device size : 2 MB
Memory block size : 256 MB
Total online memory : 1024 MB
Total offline memory: 1024 MB
The guest can dynamically enable part or all of the standby pool
via the s390-tools chmem, for example:
chmem -e 512M
And can attempt to dynamically disable:
chmem -d 512M
4. s390x/gdb: various fixes
---------------------------
* Patch 1 fixes a bug where the cc was changed accidentally.
* Patch 2 adds the gdb feature XML files for s390x
* Patch 3 Define acr and fpr registers as coprocessor registers. This allows us
to reuse the feature XML files.
* Patch 4 whitespace fixes
# gpg: Signature made Mon 01 Sep 2014 12:53:39 BST using RSA key ID B5A61C7C
# gpg: Can't check signature: public key not found
* remotes/borntraeger/tags/kvm-s390-20140901:
s390x/gdb: coding style fixes
s390x/gdb: generate target.xml and handle fp/ac as coprocessors
s390x/gdb: add the feature xml files for s390x
s390x/gdb: don't touch the cc if tcg is not enabled
sclp-s390: Add memory hotplug SCLPs
s390-virtio: Apply same memory boundaries as virtio-ccw
virtio-ccw: Include standby memory when calculating storage increment
sclp-s390: Add device to manage s390 memory hotplug
pc-bios/s390-ccw.img binary update
pc-bios/s390-ccw: Do proper console setup
pc-bios/s390-ccw: IPL from DASD with format variations
pc-bios/s390-ccw Really big EAV ECKD DASD handling
pc-bios/s390-ccw Improve ECKD informational message
pc-bios/s390-ccw: handle more ECKD DASD block sizes
pc-bios/s390-ccw: support all virtio block size
s390x/kvm: execute the first cpu reset on the vcpu thread
s390x/kvm: execute "system reset" cpu resets on the vcpu thread
s390x/kvm: execute sigp orders on the target vcpu thread
s390x/kvm: run guest triggered resets on the target vcpu thread
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add sclpMemoryHotplugDev to contain associated data structures, etc.
Signed-off-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging
Block pull request
# gpg: Signature made Fri 29 Aug 2014 17:25:58 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
* remotes/stefanha/tags/block-pull-request: (35 commits)
quorum: Fix leak of opts in quorum_open
blkverify: Fix leak of opts in blkverify_open
nfs: Fix leak of opts in nfs_file_open
curl: Don't deref NULL pointer in call to aio_poll.
curl: Allow a cookie or cookies to be sent with http/https requests.
virtio-blk: allow drive_del with dataplane
block: acquire AioContext in do_drive_del()
linux-aio: avoid deadlock in nested aio_poll() calls
qemu-iotests: add multiwrite test cases
block: fix overlapping multiwrite requests
nbd: Follow the BDS' AIO context
block: Add AIO context notifiers
nbd: Drop nbd_can_read()
sheepdog: fix a core dump while do auto-reconnecting
aio-win32: add support for sockets
qemu-coroutine-io: fix for Win32
AioContext: introduce aio_prepare
aio-win32: add aio_set_dispatching optimization
test-aio: test timers on Windows too
AioContext: export and use aio_dispatch
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
add global variables releasing logic when the usb buses
were removed or hot-unpluged.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
If a long-running operation on a BDS wants to always remain in the same
AIO context, it somehow needs to keep track of the BDS changing its
context. This adds a function for registering callbacks on a BDS which
are called whenever the BDS is attached or detached from an AIO context.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Uses the same select/WSAEventSelect scheme as main-loop.c.
WSAEventSelect() is edge-triggered, so it cannot be used
directly, but it is still used as a way to exit from a
blocking g_poll().
Before g_poll() is called, we poll sockets with a non-blocking
select() to achieve the level-triggered semantics we require:
if a socket is ready, the g_poll() is made non-blocking too.
Based on a patch from Or Goshen.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This will be used to implement socket polling on Windows.
On Windows, select() and g_poll() are completely different;
sockets are polled with select() before calling g_poll,
and the g_poll must be nonblocking if select() says a
socket is ready.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
So far, aio_poll's scheme was dispatch/poll/dispatch, where
the first dispatch phase was used only in the GSource case in
order to avoid a blocking poll. Earlier patches changed it to
dispatch/prepare/poll/dispatch, where prepare is aio_compute_timeout.
By making aio_dispatch public, we can remove the first dispatch
phase altogether, so that both aio_poll and the GSource use the same
prepare/poll/dispatch scheme.
This patch breaks the invariant that aio_poll(..., true) will not block
the first time it returns false. This used to be fundamental for
qemu_aio_flush's implementation as "while (qemu_aio_wait()) {}" but
no code in QEMU relies on this invariant anymore. The return value
of aio_poll() is now comparable with that of g_main_context_iteration.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Right now, QEMU invokes aio_bh_poll before the "poll" phase
of aio_poll. It is simpler to do it afterwards and skip the
"poll" phase altogether when the OS-dependent parts of AioContext
are invoked from GSource. This way, AioContext behaves more
similarly when used as a GSource vs. when used as stand-alone.
As a start, take bottom halves into account when computing the
poll timeout. If a bottom half is ready, do a non-blocking
poll. As a side effect, this makes idle bottom halves work
with aio_poll; an improvement, but not really an important
one since they are deprecated.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
block_job_sleep_ns is the only user. Since we are moving towards
AioContext aware code, it's better to use the explicit version and drop
the old one.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Benoît Canet <benoit.canet@nodalink.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Add IOTLB to cache information about the translation of input-addresses. IOTLB
use a GHashTable as cache. The key of the hash table is the logical-OR of gfn
and source id after left-shifting.
Signed-off-by: Le Tan <tamlokveer@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Add context-cache to cache context-entry encountered on a page-walk. Each
VTDAddressSpace has a member of VTDContextCacheEntry which represents an entry
in the context-cache. Since devices with different bus_num and devfn have their
respective VTDAddressSpace, this will be a good way to reference the cached
entries.
Each VTDContextCacheEntry will have a context_cache_gen and the cached entry
is valid only when context_cache_gen equals IntelIOMMUState.context_cache_gen.
Signed-off-by: Le Tan <tamlokveer@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Add Intel IOMMU emulation to q35 chipset and expose it to the guest.
1. Add a machine option. Users can use "-machine iommu=on|off" in the command
line to enable/disable Intel IOMMU. The default is off.
2. Accroding to the machine option, q35 will initialize the Intel IOMMU and
use pci_setup_iommu() to setup q35_host_dma_iommu() as the IOMMU function for
the pci bus.
3. q35_host_dma_iommu() will return different address space according to the
bus_num and devfn of the device.
Signed-off-by: Le Tan <tamlokveer@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Add support for emulating Intel IOMMU according to the VT-d specification for
the q35 chipset machine. Implement the logics for DMAR (DMA remapping) without
PASID support. The emulation supports register-based invalidation and primary
fault logging.
Signed-off-by: Le Tan <tamlokveer@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Add a bool variable is_write as a parameter to the translate function of
MemoryRegionIOMMUOps to indicate the operation of the access. It can be
used for correct fault reporting from within the callback.
Change the interface of related functions.
Signed-off-by: Le Tan <tamlokveer@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
reporting from Fam and a fix for DPRINTF bitrot. Memory patches try
again to initialize name from the QOM name.
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
SCSI patches include bug fixes from Fam and Peter, improved error
reporting from Fam and a fix for DPRINTF bitrot. Memory patches try
again to initialize name from the QOM name.
# gpg: Signature made Thu 28 Aug 2014 15:10:31 BST using RSA key ID 9B4D86F2
# gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: aka "Paolo Bonzini <bonzini@gnu.org>"
* remotes/bonzini/tags/for-upstream:
memory: Lazy init name from QOM name as needed
xen: hvm: Abstract away memory region name ref
xen-hvm: Constify string
virtio-scsi: Report error if num_queues is 0 or too large
scsi-generic: remove superfluous DPRINTF avoid to break compiling
block/iscsi: fix memory corruption on iscsi resize
scsi-bus: Convert DeviceClass init to realize
block: Pass errp in blkconf_geometry
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
of the NMI monitor command.
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Merge remote-tracking branch 'remotes/kvm/tags/for-upstream' into staging
Mostly bugfixes + Alexey's interface-based implementation
of the NMI monitor command.
# gpg: Signature made Thu 28 Aug 2014 15:07:22 BST using RSA key ID 9B4D86F2
# gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: aka "Paolo Bonzini <bonzini@gnu.org>"
* remotes/kvm/tags/for-upstream:
mc146818rtc: reinitialize irq_reinject_on_ack_count on reset
target-i386: Add "tsc_adjust" CPU feature name
target-i386: Add "mpx" CPU feature name
vl: process -object after other backend options
checkpatch.pl: adjust typedef definition to QEMU coding style
x86: Clear MTRRs on vCPU reset
x86: kvm: Add MTRR support for kvm_get|put_msrs()
x86: Use common variable range MTRR counts
target-i386: Don't forbid NX bit on PAE PDEs and PTEs
spapr: Add support for new NMI interface
s390x: Migrate to new NMI interface
s390x: Convert QEMUMachine to MachineClass
cpus: Define callback for QEMU "nmi" command
kvm: run cpu state synchronization on target vcpu thread
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Replace "init/destroy" with "realize/unrealize" in SCSIDeviceClass,
which has errp as a parameter. So all the implementations now use
error_setg instead of error_report for reporting error.
Also in scsi_bus_legacy_handle_cmdline, report the error when
initializing the if=scsi devices, before returning it, because in the
callee, error_report is changed to error_setg. And the callers don't
have the right locations (e.g. "-drive if=scsi").
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This allows us to pass error information to caller.
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
A bunch of bugfixes - these will make sense for 2.1.1
ACPI support for TPM and partial ARI support for PCIE.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pci, pc fixes, features
A bunch of bugfixes - these will make sense for 2.1.1
ACPI support for TPM and partial ARI support for PCIE.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Sun 24 Aug 2014 23:16:35 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:
pcie: fix trailing whitespace
ioh3420: Enable ARI forwarding
ioh3420: Remove obsoleted, unused ioh3420_init function
pcie: Rename the pcie_cap_ari_* functions to pcie_cap_arifwd_*
pcie: Fix incorrect write to the ari capability next function field
ssdt-tpm: add generated hex file to git
Add ACPI tables for TPM
pc: reserve more memory for ACPI for new machine types
pcihp: fix possible array out of bounds
pci_bridge: manually destroy memory regions within PCIBridgeWindows
hostmem: set MPOL_MF_MOVE
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This introduces an NMI (Non Maskable Interrupt) interface with
a single nmi_monitor_handler() method. A machine or a device can
implement it. This searches for an QOM object with this interface
and if it is implemented, calls it. The callback implements an action
required to cause debug crash dump on in-kernel debugger invocation.
The callback returns Error**.
This adds a nmi_monitor_handle() helper which walks through
all objects to find the interface. The interface method is called
for all found instances.
This adds support for it in qmp_inject_nmi(). Since no architecture
supports it at the moment, there is no change in behaviour.
This changes inject-nmi command description for HMP and QMP.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Rename helper functions to make a clearer distinction between
the PCIe capability/control register feature ARI forwarding and a
device that supports the ARI feature via an ARI extended PCIe capability.
Signed-off-by: Knut Omang <knut.omang@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
commit 868270f23d
acpi-build: tweak acpi migration limits
broke kernel loading with -kernel/-initrd: it doubled
the size of ACPI tables but did not reserve
enough memory.
As a result, issues on boot and halt are observed.
Fix this up by doubling reserved memory for new machine types.
Cc: qemu-stable@nongnu.org
Reported-by: Stefan Hajnoczi <stefanha@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 patches
# gpg: Signature made Fri 22 Aug 2014 14:47:53 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
* remotes/kevin/tags/for-upstream: (29 commits)
qemu-img: Allow cache mode specification for amend
qemu-img: Allow source cache mode specification
vmdk: Use bdrv_nb_sectors() where sectors, not bytes are wanted
blkdebug: Delete BH in bdrv_aio_cancel
qemu-iotests: add test case 101 for short file I/O
raw-posix: fix O_DIRECT short reads
block/iscsi: fix memory corruption on iscsi resize
block/vvfat.c: remove debugging code to reinit stderr if NULL
iotests: Add test for image filename construction
quorum: Implement bdrv_refresh_filename()
nbd: Implement bdrv_refresh_filename()
blkverify: Implement bdrv_refresh_filename()
blkdebug: Implement bdrv_refresh_filename()
block: Add bdrv_refresh_filename()
virtio-blk: fix reference a pointer which might be freed
virtio-blk: allow block_resize with dataplane
block: acquire AioContext in qmp_block_resize()
qemu-iotests: Fix 028 reference output for qed
test-coroutine: test cost introduced by coroutine
iotests: Add test for qcow2's cache options
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Build /proc/self/maps doing a match against guest memory translation table.
Output only that map records which are valid for guest memory layout.
Signed-off-by: Mikhail Ilyin <m.ilin@samsung.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Some block devices may not have a filename in their BDS; and for some,
there may not even be a normal filename at all. To work around this, add
a function which tries to construct a valid filename for the
BDS.filename field.
If a filename exists or a block driver is able to reconstruct a valid
filename (which is placed in BDS.exact_filename), this can directly be
used.
If no filename can be constructed, we can still construct an options
QDict which is then converted to a JSON object and prefixed with the
"json:" pseudo protocol prefix. The QDict is placed in
BDS.full_open_options.
For most block drivers, this process can be done automatically; those
that need special handling may define a .bdrv_refresh_filename() method
to fill BDS.exact_filename and BDS.full_open_options themselves.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* fix preferred return address for A64 BRK insn
* implement AArch64 single-stepping
* support loading gzip compressed AArch64 kernels
* use correct PSCI function IDs in the DT when KVM uses PSCI 0.2
* minor cleanups
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20140819' into staging
target-arm:
* fix preferred return address for A64 BRK insn
* implement AArch64 single-stepping
* support loading gzip compressed AArch64 kernels
* use correct PSCI function IDs in the DT when KVM uses PSCI 0.2
* minor cleanups
# gpg: Signature made Tue 19 Aug 2014 19:04:09 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
* remotes/pmaydell/tags/pull-target-arm-20140819:
arm: stellaris: Remove misleading address_space_mem var
arm: armv7m: Rename address_space_mem -> system_memory
aarch64: Allow -kernel option to take a gzip-compressed kernel.
loader: Add load_image_gzipped function.
arm: cortex-a9: Fix cache-line size and associativity
arm/virt: Use PSCI v0.2 function IDs in the DT when KVM uses PSCI v0.2
target-arm: Rename QEMU PSCI v0.1 definitions
target-arm: Implement MDSCR_EL1 as having state
target-arm: Implement ARMv8 single-stepping for AArch32 code
target-arm: Implement ARMv8 single-step handling for A64 code
target-arm: A64: Avoid duplicate exit_tb(0) in non-linked goto_tb
target-arm: Set PSTATE.SS correctly on exception return from AArch64
target-arm: Correctly handle PSTATE.SS when taking exception to AArch32
target-arm: Don't allow AArch32 to access RES0 CPSR bits
target-arm: Adjust debug ID registers per-CPU
target-arm: Provide both 32 and 64 bit versions of debug registers
target-arm: Allow STATE_BOTH reginfo descriptions for more than cp14
target-arm: Collect up the debug cp register definitions
target-arm: Fix return address for A64 BRK instructions
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This argument is a MemoryRegion and not an AddressSpace.
"Address space" means something quite different to "memory region"
in QEMU parlance so rename the variable to reduce confusion.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: f666cf7f2318d9b461b1e320a45bf0d82da9b7dd.1408347860.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
As the name suggests this lets you load a ROM/disk image that is
gzipped. It is uncompressed before storing it in guest memory.
Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1407831259-2115-2-git-send-email-rjones@redhat.com
[PMM: removed stray space before ')']
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Memory changes for QOMification and automatic tracking of MR lifetime.
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
SCSI changes that enable sending vendor-specific commands via virtio-scsi.
Memory changes for QOMification and automatic tracking of MR lifetime.
# gpg: Signature made Mon 18 Aug 2014 13:03:09 BST using RSA key ID 9B4D86F2
# gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: aka "Paolo Bonzini <bonzini@gnu.org>"
* remotes/bonzini/tags/for-upstream:
mtree: remove write-only field
memory: Use canonical path component as the name
memory: Use memory_region_name for name access
memory: constify memory_region_name
exec: Abstract away ref to memory region names
loader: Abstract away ref to memory region names
tpm_tis: remove instance_finalize callback
memory: remove memory_region_destroy
memory: convert memory_region_destroy to object_unparent
ioport: split deletion and destruction
nic: do not destroy memory regions in cleanup functions
vga: do not dynamically allocate chain4_alias
sysbus: remove unused function sysbus_del_io
qom: object: move unparenting to the child property's release callback
qom: object: delete properties before calling instance_finalize
virtio-scsi: implement parse_cdb
scsi-block, scsi-generic: implement parse_cdb
scsi-block: extract scsi_block_is_passthrough
scsi-bus: introduce parse_cdb in SCSIDeviceClass and SCSIBusInfo
scsi-bus: prepare scsi_req_new for introduction of parse_cdb
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The function monitor_fdset_dup_fd_find_remove() references member of
'mon_fdset' which - when remove flag is set - may be freed in function
monitor_fdset_cleanup().
remove is set by monitor_fdset_dup_fd_remove which in practice
does not need the returned value, so make it void,
and return -1 from monitor_fdset_dup_fd_find_remove.
Reported-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
To ensure two virtserialports don't get added to the system with the
same 'name' parameter, we need to access all the ports on all the
devices added, and compare the names.
We currently don't have a list of all VirtIOSerial devices added to the
system. This commit adds a simple linked list in which devices are put
when they're initialized, and removed when they go away.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Rather than having the name as separate state. This prepares support
for creating a MemoryRegion dynamically (i.e. without
memory_region_init() and friends) and the MemoryRegion still getting
a usable name.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It doesn't change the MR and some prospective call sites will have
const MRs at hand.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The function is empty after the previous patch, so remove it.
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
A bunch of fixes that missed 2.1 by a small margin.
If we do 2.1.1, some of these would be good candidates,
added Cc qemu-stable as appropriate.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
post-2.1 bugfixes
A bunch of fixes that missed 2.1 by a small margin.
If we do 2.1.1, some of these would be good candidates,
added Cc qemu-stable as appropriate.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Thu 14 Aug 2014 17:07:25 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:
pc: Get rid of pci-info leftovers
e1000: use symbolic constants to init phy ctrl & status registers
e1000: correctly handle phy_ctrl reserved & self-clearing bits
ivshmem: fix building when debug mode is enabled
acpi: align RSDP
numa: show hex number in error message for consistency and prefix them with 0x
pc-dimm: fix up error message
pc-dimm: validate node property
hw:i386: typo fix: MEMORY_HOPTLUG_DEVICE -> MEMORY_HOTPLUG_DEVICE
hw/audio/intel-hda: Fix MSI capability address
pc: Create 2.2 machine type
pci: Use bus master address space for delivering MSI/MSI-X messages
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
piix_pci.c has been renamed into piix.c at commit
c0907c9e64
update the obsolete reference.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block patches
# gpg: Signature made Fri 15 Aug 2014 14:07:42 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
* remotes/kevin/tags/for-upstream: (59 commits)
block: Catch !bs->drv in bdrv_check()
iotests: Add test for image header overlap
qcow2: Catch !*host_offset for data allocation
qcow2: Return useful error code in refcount_init()
mirror: Handle failure for potentially large allocations
vpc: Handle failure for potentially large allocations
vmdk: Handle failure for potentially large allocations
vhdx: Handle failure for potentially large allocations
vdi: Handle failure for potentially large allocations
rbd: Handle failure for potentially large allocations
raw-win32: Handle failure for potentially large allocations
raw-posix: Handle failure for potentially large allocations
qed: Handle failure for potentially large allocations
qcow2: Handle failure for potentially large allocations
qcow1: Handle failure for potentially large allocations
parallels: Handle failure for potentially large allocations
nfs: Handle failure for potentially large allocations
iscsi: Handle failure for potentially large allocations
dmg: Handle failure for potentially large allocations
curl: Handle failure for potentially large allocations
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
