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| author | Paolo Bonzini <pbonzini@redhat.com> | 2019-11-18 12:23:00 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-11-21 09:59:31 +0100 |
| commit | edef5c36b0c7f07ab4926f6c9e50731f3772c79d (patch) | |
| tree | fd52ae76a55a249dcc0a1c7b5b2afa2cb173d93d /arch/x86/include/asm/kvm_host.h | |
| parent | de1fca5d6e0105c9d33924e1247e2f386efc3ece (diff) | |
| download | linux-edef5c36b0c7f07ab4926f6c9e50731f3772c79d.tar.gz linux-edef5c36b0c7f07ab4926f6c9e50731f3772c79d.tar.bz2 linux-edef5c36b0c7f07ab4926f6c9e50731f3772c79d.zip | |
KVM: x86: implement MSR_IA32_TSX_CTRL effect on CPUID
Because KVM always emulates CPUID, the CPUID clear bit
(bit 1) of MSR_IA32_TSX_CTRL must be emulated "manually"
by the hypervisor when performing said emulation.
Right now neither kvm-intel.ko nor kvm-amd.ko implement
MSR_IA32_TSX_CTRL but this will change in the next patch.
Reviewed-by: Jim Mattson <jmattson@google.com>
Tested-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 4fc61483919a..663d09ac7778 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1357,6 +1357,7 @@ int kvm_emulate_instruction_from_buffer(struct kvm_vcpu *vcpu, void kvm_enable_efer_bits(u64); bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer); +int __kvm_get_msr(struct kvm_vcpu *vcpu, u32 index, u64 *data, bool host_initiated); int kvm_get_msr(struct kvm_vcpu *vcpu, u32 index, u64 *data); int kvm_set_msr(struct kvm_vcpu *vcpu, u32 index, u64 data); int kvm_emulate_rdmsr(struct kvm_vcpu *vcpu); |