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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
* 'stable/for-linus-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: (37 commits)
xen/pciback: Expand the warning message to include domain id.
xen/pciback: Fix "device has been assigned to X domain!" warning
xen/pciback: Move the PCI_DEV_FLAGS_ASSIGNED ops to the "[un|]bind"
xen/xenbus: don't reimplement kvasprintf via a fixed size buffer
xenbus: maximum buffer size is XENSTORE_PAYLOAD_MAX
xen/xenbus: Reject replies with payload > XENSTORE_PAYLOAD_MAX.
Xen: consolidate and simplify struct xenbus_driver instantiation
xen-gntalloc: introduce missing kfree
xen/xenbus: Fix compile error - missing header for xen_initial_domain()
xen/netback: Enable netback on HVM guests
xen/grant-table: Support mappings required by blkback
xenbus: Use grant-table wrapper functions
xenbus: Support HVM backends
xen/xenbus-frontend: Fix compile error with randconfig
xen/xenbus-frontend: Make error message more clear
xen/privcmd: Remove unused support for arch specific privcmp mmap
xen: Add xenbus_backend device
xen: Add xenbus device driver
xen: Add privcmd device driver
xen/gntalloc: fix reference counts on multi-page mappings
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* commit 'v3.2-rc3': (412 commits)
Linux 3.2-rc3
virtio-pci: make reset operation safer
virtio-mmio: Correct the name of the guest features selector
virtio: add HAS_IOMEM dependency to MMIO platform bus driver
eCryptfs: Extend array bounds for all filename chars
eCryptfs: Flush file in vma close
eCryptfs: Prevent file create race condition
regulator: TPS65910: Fix VDD1/2 voltage selector count
i2c: Make i2cdev_notifier_call static
i2c: Delete ANY_I2C_BUS
i2c: Fix device name for 10-bit slave address
i2c-algo-bit: Generate correct i2c address sequence for 10-bit target
drm: integer overflow in drm_mode_dirtyfb_ioctl()
Revert "of/irq: of_irq_find_parent: check for parent equal to child"
drivers/gpu/vga/vgaarb.c: add missing kfree
drm/radeon/kms/atom: unify i2c gpio table handling
drm/radeon/kms: fix up gpio i2c mask bits for r4xx for real
ttm: Don't return the bo reserved on error path
mount_subtree() pointless use-after-free
iio: fix a leak due to improper use of anon_inode_getfd()
...
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Receiver-side copying of packets is based on this implementation, it gives
better performance and better CPU accounting. It totally supports three types:
full-page, sub-page and transitive grants.
However this patch does not cover sub-page and transitive grants, it mainly
focus on Full-page part and implements grant table V2 interfaces corresponding
to what already exists in grant table V1, such as: grant table V2
initialization, mapping, releasing and exported interfaces.
Each guest can only supports one type of grant table type, every entry in grant
table should be the same version. It is necessary to set V1 or V2 version before
initializing the grant table.
Grant table exported interfaces of V2 are same with those of V1, Xen is
responsible to judge what grant table version guests are using in every grant
operation.
V2 fulfills the same role of V1, and it is totally backwards compitable with V1.
If dom0 support grant table V2, the guests runing on it can run with either V1
or V2.
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Annie Li <annie.li@oracle.com>
[v1: Modified alloc_vm_area call (new parameters), indentation, and cleanpatch
warnings]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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This patch introduces new structures of grant table V2, grant table V2 is an
extension from V1. Grant table is shared between guest and Xen, and Xen is
responsible to do corresponding work for grant operations, such as: figure
out guest's grant table version, perform different actions based on
different grant table version, etc. Although full-page structure of V2
is different from V1, it play the same role as V1.
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Annie Li <annie.li@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Which is that 128GB is not going to happen with 32-bit PV DomU.
Lets use something more realistic. Also update the 64-bit to 500GB
which is the max a PV guest can do.
Signed-off-by: Maxim Uvarov <maxim.uvarov@oracle.com>
[v1: Updated 128GB->500GB for 64-bit]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
* 'stable/for-linus-fixes-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/mmu: Fix compile errors introduced by x86/memblock mismerge.
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The git commit d4bbf7e7759afc172e2bfbc5c416324590049cdd
"Merge branch 'master' into x86/memblock" mismerged the 32-bit
section causing:
arch/x86/xen/mmu.c: In function ‘xen_setup_kernel_pagetable’:
arch/x86/xen/mmu.c:1855: error: expected ‘;’ before ‘)’ token
arch/x86/xen/mmu.c:1855: error: expected statement before ‘)’ token
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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* 'kvm-updates/3.3' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (74 commits)
KVM: PPC: Whitespace fix for kvm.h
KVM: Fix whitespace in kvm_para.h
KVM: PPC: annotate kvm_rma_init as __init
KVM: x86 emulator: implement RDPMC (0F 33)
KVM: x86 emulator: fix RDPMC privilege check
KVM: Expose the architectural performance monitoring CPUID leaf
KVM: VMX: Intercept RDPMC
KVM: SVM: Intercept RDPMC
KVM: Add generic RDPMC support
KVM: Expose a version 2 architectural PMU to a guests
KVM: Expose kvm_lapic_local_deliver()
KVM: x86 emulator: Use opcode::execute for Group 9 instruction
KVM: x86 emulator: Use opcode::execute for Group 4/5 instructions
KVM: x86 emulator: Use opcode::execute for Group 1A instruction
KVM: ensure that debugfs entries have been created
KVM: drop bsp_vcpu pointer from kvm struct
KVM: x86: Consolidate PIT legacy test
KVM: x86: Do not rely on implicit inclusions
KVM: Make KVM_INTEL depend on CPU_SUP_INTEL
KVM: Use memdup_user instead of kmalloc/copy_from_user
...
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Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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RDPMC is only privileged if CR4.PCE=0. check_rdpmc() already implements this,
so all we need to do is drop the Priv flag.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Provide a CPUID leaf that describes the emulated PMU.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Intercept RDPMC and forward it to the PMU emulation code.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Intercept RDPMC and forward it to the PMU emulation code.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Add a helper function that emulates the RDPMC instruction operation.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Use perf_events to emulate an architectural PMU, version 2.
Based on PMU version 1 emulation by Avi Kivity.
[avi: adjust for cpuid.c]
[jan: fix anonymous field initialization for older gcc]
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Needed to deliver performance monitoring interrupts.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Group 9: 0F C7
Rename em_grp9() to em_cmpxchg8b() and register it.
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Group 4: FE
Group 5: FF
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Group 1A: 8F
Register em_pop() directly and remove em_grp1a().
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Drop bsp_vcpu pointer from kvm struct since its only use is incorrect
anyway.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Move the test for KVM_PIT_FLAGS_HPET_LEGACY into create_pit_timer
instead of replicating it on the caller site.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Works so far by change, but it is not guaranteed to stay like this.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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PMU virtualization needs to talk to Intel-specific bits of perf; these are
only available when CPU_SUP_INTEL=y.
Fixes
arch/x86/built-in.o: In function `atomic_switch_perf_msrs':
vmx.c:(.text+0x6b1d4): undefined reference to `perf_guest_get_msrs'
Reported-by: Ingo Molnar <mingo@elte.hu>
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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* tip/perf/core: (66 commits)
perf, x86: Expose perf capability to other modules
perf, x86: Implement arch event mask as quirk
x86, perf: Disable non available architectural events
jump_label: Provide jump_label_key initializers
jump_label, x86: Fix section mismatch
perf, core: Rate limit perf_sched_events jump_label patching
perf: Fix enable_on_exec for sibling events
perf: Remove superfluous arguments
perf, x86: Prefer fixed-purpose counters when scheduling
perf, x86: Fix event scheduler for constraints with overlapping counters
perf, x86: Implement event scheduler helper functions
perf: Avoid a useless pmu_disable() in the perf-tick
x86/tools: Add decoded instruction dump mode
x86: Update instruction decoder to support new AVX formats
x86/tools: Fix insn_sanity message outputs
x86/tools: Fix instruction decoder message output
x86: Fix instruction decoder to handle grouped AVX instructions
x86/tools: Fix Makefile to build all test tools
perf test: Soft errors shouldn't stop the "Validate PERF_RECORD_" test
perf test: Validate PERF_RECORD_ events and perf_sample fields
...
Signed-off-by: Avi Kivity <avi@redhat.com>
* commit 'b3d9468a8bd218a695e3a0ff112cd4efd27b670a': (66 commits)
perf, x86: Expose perf capability to other modules
perf, x86: Implement arch event mask as quirk
x86, perf: Disable non available architectural events
jump_label: Provide jump_label_key initializers
jump_label, x86: Fix section mismatch
perf, core: Rate limit perf_sched_events jump_label patching
perf: Fix enable_on_exec for sibling events
perf: Remove superfluous arguments
perf, x86: Prefer fixed-purpose counters when scheduling
perf, x86: Fix event scheduler for constraints with overlapping counters
perf, x86: Implement event scheduler helper functions
perf: Avoid a useless pmu_disable() in the perf-tick
x86/tools: Add decoded instruction dump mode
x86: Update instruction decoder to support new AVX formats
x86/tools: Fix insn_sanity message outputs
x86/tools: Fix instruction decoder message output
x86: Fix instruction decoder to handle grouped AVX instructions
x86/tools: Fix Makefile to build all test tools
perf test: Soft errors shouldn't stop the "Validate PERF_RECORD_" test
perf test: Validate PERF_RECORD_ events and perf_sample fields
...
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Switch to using memdup_user when possible. This makes code more
smaller and compact, and prevents errors.
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Switch to kmemdup() in two places to shorten the code and avoid possible bugs.
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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This was probably copy&pasted from the cr0 case, but it's unneeded here.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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freed_pages is never evaluated, so remove it as well as the return code
kvm_mmu_remove_some_alloc_mmu_pages so far delivered to its only user.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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percpu_xxx funcs are duplicated with this_cpu_xxx funcs, so replace them
for further code clean up.
And in preempt safe scenario, __this_cpu_xxx funcs has a bit better
performance since __this_cpu_xxx has no redundant preempt_disable()
Signed-off-by: Alex Shi <alex.shi@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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inline audit function and little cleanup
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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The unsync code should be stable now, maybe it is the time to remove this
parameter to cleanup the code a little bit
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Move the mmu code in kvm_arch_vcpu_init() to kvm_mmu_create()
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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KVM_EXIT_HYPERCALL is not used anymore, so remove the code
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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The tracepoint is only used to audit mmu code, it should not be exposed to
user, let us replace it with jump-label.
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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This patch cleans and simplifies kvm_dev_ioctl_get_supported_cpuid by using a table
instead of duplicating code as Avi suggested.
This patch also fixes a bug where kvm_dev_ioctl_get_supported_cpuid would return
-E2BIG when amount of entries passed was just right.
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Intel latest cpu add 6 new features, refer http://software.intel.com/file/36945
The new feature cpuid listed as below:
1. FMA CPUID.EAX=01H:ECX.FMA[bit 12]
2. MOVBE CPUID.EAX=01H:ECX.MOVBE[bit 22]
3. BMI1 CPUID.EAX=07H,ECX=0H:EBX.BMI1[bit 3]
4. AVX2 CPUID.EAX=07H,ECX=0H:EBX.AVX2[bit 5]
5. BMI2 CPUID.EAX=07H,ECX=0H:EBX.BMI2[bit 8]
6. LZCNT CPUID.EAX=80000001H:ECX.LZCNT[bit 5]
This patch expose these features to guest.
Among them, FMA/MOVBE/LZCNT has already been defined, MOVBE/LZCNT has
already been exposed.
This patch defines BMI1/AVX2/BMI2, and exposes FMA/BMI1/AVX2/BMI2 to guest.
Signed-off-by: Liu, Jinsong <jinsong.liu@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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The cpuid code has grown; put it into a separate file.
Signed-off-by: Avi Kivity <avi@redhat.com>
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INSB : 6C
INSW/INSD : 6D
OUTSB : 6E
OUTSW/OUTSD: 6F
The I/O port address is read from the DX register when we decode the
operand because we see the SrcDX/DstDX flag is set.
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Introduce id_to_memslot to get memslot by slot id
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Introduce kvm_for_each_memslot to walk all valid memslot
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Introduce update_memslots to update slot which will be update to
kvm->memslots
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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Introduce KVM_MEM_SLOTS_NUM macro to instead of
KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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BSF: 0F BC
BSR: 0F BD
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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CMPXCHG: 0F B0, 0F B1
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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WRMSR: 0F 30
RDMSR: 0F 32
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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MOV: 0F 22 (move to control registers)
MOV: 0F 23 (move to debug registers)
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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CALL: E8
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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BT : 0F A3
BTS: 0F AB
BTR: 0F B3
BTC: 0F BB
Group 8: 0F BA
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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IN : E4, E5, EC, ED
OUT: E6, E7, EE, EF
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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vmx_load_host_state() does not handle msrs switching (except
MSR_KERNEL_GS_BASE) since commit 26bb0981b3f. Remove call to it
where it is no longer make sense.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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