diff options
Diffstat (limited to 'arch/x86/kvm/vmx.c')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 10b22619e7e..afc1f06907c 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1766,12 +1766,24 @@ static void vmx_set_tsc_khz(struct kvm_vcpu *vcpu, u32 user_tsc_khz) static void vmx_write_tsc_offset(struct kvm_vcpu *vcpu, u64 offset) { vmcs_write64(TSC_OFFSET, offset); + if (is_guest_mode(vcpu)) + /* + * We're here if L1 chose not to trap the TSC MSR. Since + * prepare_vmcs12() does not copy tsc_offset, we need to also + * set the vmcs12 field here. + */ + get_vmcs12(vcpu)->tsc_offset = offset - + to_vmx(vcpu)->nested.vmcs01_tsc_offset; } static void vmx_adjust_tsc_offset(struct kvm_vcpu *vcpu, s64 adjustment) { u64 offset = vmcs_read64(TSC_OFFSET); vmcs_write64(TSC_OFFSET, offset + adjustment); + if (is_guest_mode(vcpu)) { + /* Even when running L2, the adjustment needs to apply to L1 */ + to_vmx(vcpu)->nested.vmcs01_tsc_offset += adjustment; + } } static u64 vmx_compute_tsc_offset(struct kvm_vcpu *vcpu, u64 target_tsc) |