diff options
| author | Xiaoyao Li <xiaoyao.li@intel.com> | 2021-08-27 09:02:44 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-10-22 11:19:26 +0200 |
| commit | ba51d627230fdac53a0613a1b8d23241fdf45c26 (patch) | |
| tree | d5fa0f766378a559d58ba4d671f05822f2c96fdb /arch/x86 | |
| parent | KVM: VMX: Restore host's MSR_IA32_RTIT_CTL when it's not zero (diff) | |
| download | linux-ba51d627230fdac53a0613a1b8d23241fdf45c26.tar.xz linux-ba51d627230fdac53a0613a1b8d23241fdf45c26.zip | |
KVM: VMX: Use precomputed vmx->pt_desc.addr_range
The number of valid PT ADDR MSRs for the guest is precomputed in
vmx->pt_desc.addr_range. Use it instead of calculating again.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20210827070249.924633-3-xiaoyao.li@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 9a8cd7f8481e..f8539f911fb7 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -1890,8 +1890,7 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) case MSR_IA32_RTIT_ADDR0_A ... MSR_IA32_RTIT_ADDR3_B: index = msr_info->index - MSR_IA32_RTIT_ADDR0_A; if (!vmx_pt_mode_is_host_guest() || - (index >= 2 * intel_pt_validate_cap(vmx->pt_desc.caps, - PT_CAP_num_address_ranges))) + (index >= 2 * vmx->pt_desc.addr_range)) return 1; if (index % 2) msr_info->data = vmx->pt_desc.guest.addr_b[index / 2]; @@ -2206,8 +2205,7 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) if (!pt_can_write_msr(vmx)) return 1; index = msr_info->index - MSR_IA32_RTIT_ADDR0_A; - if (index >= 2 * intel_pt_validate_cap(vmx->pt_desc.caps, - PT_CAP_num_address_ranges)) + if (index >= 2 * vmx->pt_desc.addr_range) return 1; if (is_noncanonical_address(data, vcpu)) return 1; |