Zhanghaoyu (A) 764bcbc5a6 KVM: x86: remove vcpu's CPL check in host-invoked XCR set ...

__kvm_set_xcr function does the CPL check when set xcr. __kvm_set_xcr is
called in two flows, one is invoked by guest, call stack shown as below,

  handle_xsetbv(or xsetbv_interception)
    kvm_set_xcr
      __kvm_set_xcr

the other one is invoked by host, for example during system reset:

  kvm_arch_vcpu_ioctl
    kvm_vcpu_ioctl_x86_set_xcrs
      __kvm_set_xcr

The former does need the CPL check, but the latter does not.

Cc: stable@vger.kernel.org
Signed-off-by: Zhang Haoyu <haoyu.zhang@huawei.com>
[Tweaks to commit message. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

2013-06-18 09:55:35 +02:00

..

cpuid.c

KVM: x86: Make register state after reset conform to specification

2012-12-05 18:00:07 +02:00

cpuid.h

Merge tag 'kvm-3.8-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2012-12-13 15:31:08 -08:00

emulate.c

KVM: fix sil/dil/bpl/spl in the mod/rm fields

2013-06-03 11:27:12 +03:00

i8254.c

KVM: Let ioapic know the irq line status

2013-04-15 23:20:34 -03:00

i8254.h

KVM: fold kvm_pit_timer into kvm_kpit_state

2012-08-01 00:21:07 -03:00

i8259.c

KVM: inject ExtINT interrupt before APIC interrupts

2012-12-13 23:05:21 -02:00

irq.c

x86, apicv: add virtual interrupt delivery support

2013-01-29 10:48:19 +02:00

irq.h

KVM: switch to symbolic name for irq_states size

2012-07-20 16:12:16 -03:00

Kconfig

kvm: Allow build-time configuration of KVM device assignment

2013-04-28 12:58:56 +03:00

kvm_cache_regs.h

KVM: MMU: Do not unconditionally read PDPTE from guest memory

2011-09-25 19:18:01 +03:00

lapic.c

KVM: Fix race in apic->pending_events processing

2013-06-03 11:32:39 +03:00

lapic.h

KVM: VMX: Add the deliver posted interrupt algorithm

2013-04-16 16:32:40 -03:00

Makefile

kvm: Allow build-time configuration of KVM device assignment

2013-04-28 12:58:56 +03:00

mmu_audit.c

KVM: do not release the error pfn

2012-08-06 16:04:57 +03:00

mmu.c

Revert "KVM: MMU: Move kvm_mmu_free_some_pages() into kvm_mmu_alloc_page()"

2013-04-07 13:13:36 +03:00

mmu.h

KVM: MMU: Rename kvm_mmu_free_some_pages() to make_mmu_pages_available()

2013-03-21 19:45:01 -03:00

mmutrace.h

KVM: mmu: remove unused trace event

2013-01-07 19:54:50 -02:00

paging_tmpl.h

Revert "KVM: MMU: Move kvm_mmu_free_some_pages() into kvm_mmu_alloc_page()"

2013-04-07 13:13:36 +03:00

pmu.c

pmu: prepare for migration support

2013-04-02 17:42:44 +03:00

svm.c

Merge tag 'kvm-3.10-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2013-05-05 14:47:31 -07:00

trace.h

KVM: x86: require matched TSC offsets for master clock

2012-11-27 23:29:15 -02:00

tss.h

…

vmx.c

KVM: VMX: fix halt emulation while emulating invalid guest sate

2013-05-09 09:04:56 +03:00

x86.c

KVM: x86: remove vcpu's CPL check in host-invoked XCR set

2013-06-18 09:55:35 +02:00

x86.h

KVM: x86: Add code to track call origin for msr assignment

2012-11-30 18:26:12 -02:00