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Diffstat (limited to 'arch/x86/kvm/svm/nested.c')
-rw-r--r--arch/x86/kvm/svm/nested.c57
1 files changed, 33 insertions, 24 deletions
diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index 96936ddf1b3c..dd496c9e5f91 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -107,7 +107,7 @@ static void nested_svm_uninit_mmu_context(struct kvm_vcpu *vcpu)
static bool nested_vmcb_needs_vls_intercept(struct vcpu_svm *svm)
{
- if (!svm->v_vmload_vmsave_enabled)
+ if (!guest_can_use(&svm->vcpu, X86_FEATURE_V_VMSAVE_VMLOAD))
return true;
if (!nested_npt_enabled(svm))
@@ -552,6 +552,7 @@ static void nested_vmcb02_prepare_save(struct vcpu_svm *svm, struct vmcb *vmcb12
bool new_vmcb12 = false;
struct vmcb *vmcb01 = svm->vmcb01.ptr;
struct vmcb *vmcb02 = svm->nested.vmcb02.ptr;
+ struct kvm_vcpu *vcpu = &svm->vcpu;
nested_vmcb02_compute_g_pat(svm);
@@ -577,18 +578,18 @@ static void nested_vmcb02_prepare_save(struct vcpu_svm *svm, struct vmcb *vmcb12
vmcb_mark_dirty(vmcb02, VMCB_DT);
}
- kvm_set_rflags(&svm->vcpu, vmcb12->save.rflags | X86_EFLAGS_FIXED);
+ kvm_set_rflags(vcpu, vmcb12->save.rflags | X86_EFLAGS_FIXED);
- svm_set_efer(&svm->vcpu, svm->nested.save.efer);
+ svm_set_efer(vcpu, svm->nested.save.efer);
- svm_set_cr0(&svm->vcpu, svm->nested.save.cr0);
- svm_set_cr4(&svm->vcpu, svm->nested.save.cr4);
+ svm_set_cr0(vcpu, svm->nested.save.cr0);
+ svm_set_cr4(vcpu, svm->nested.save.cr4);
svm->vcpu.arch.cr2 = vmcb12->save.cr2;
- kvm_rax_write(&svm->vcpu, vmcb12->save.rax);
- kvm_rsp_write(&svm->vcpu, vmcb12->save.rsp);
- kvm_rip_write(&svm->vcpu, vmcb12->save.rip);
+ kvm_rax_write(vcpu, vmcb12->save.rax);
+ kvm_rsp_write(vcpu, vmcb12->save.rsp);
+ kvm_rip_write(vcpu, vmcb12->save.rip);
/* In case we don't even reach vcpu_run, the fields are not updated */
vmcb02->save.rax = vmcb12->save.rax;
@@ -602,7 +603,8 @@ static void nested_vmcb02_prepare_save(struct vcpu_svm *svm, struct vmcb *vmcb12
vmcb_mark_dirty(vmcb02, VMCB_DR);
}
- if (unlikely(svm->lbrv_enabled && (svm->nested.ctl.virt_ext & LBR_CTL_ENABLE_MASK))) {
+ if (unlikely(guest_can_use(vcpu, X86_FEATURE_LBRV) &&
+ (svm->nested.ctl.virt_ext & LBR_CTL_ENABLE_MASK))) {
/*
* Reserved bits of DEBUGCTL are ignored. Be consistent with
* svm_set_msr's definition of reserved bits.
@@ -658,7 +660,8 @@ static void nested_vmcb02_prepare_control(struct vcpu_svm *svm,
* exit_int_info, exit_int_info_err, next_rip, insn_len, insn_bytes.
*/
- if (svm->vgif_enabled && (svm->nested.ctl.int_ctl & V_GIF_ENABLE_MASK))
+ if (guest_can_use(vcpu, X86_FEATURE_VGIF) &&
+ (svm->nested.ctl.int_ctl & V_GIF_ENABLE_MASK))
int_ctl_vmcb12_bits |= (V_GIF_MASK | V_GIF_ENABLE_MASK);
else
int_ctl_vmcb01_bits |= (V_GIF_MASK | V_GIF_ENABLE_MASK);
@@ -695,10 +698,9 @@ static void nested_vmcb02_prepare_control(struct vcpu_svm *svm,
vmcb02->control.tsc_offset = vcpu->arch.tsc_offset;
- if (svm->tsc_ratio_msr != kvm_caps.default_tsc_scaling_ratio) {
- WARN_ON(!svm->tsc_scaling_enabled);
+ if (guest_can_use(vcpu, X86_FEATURE_TSCRATEMSR) &&
+ svm->tsc_ratio_msr != kvm_caps.default_tsc_scaling_ratio)
nested_svm_update_tsc_ratio_msr(vcpu);
- }
vmcb02->control.int_ctl =
(svm->nested.ctl.int_ctl & int_ctl_vmcb12_bits) |
@@ -717,7 +719,7 @@ static void nested_vmcb02_prepare_control(struct vcpu_svm *svm,
* what a nrips=0 CPU would do (L1 is responsible for advancing RIP
* prior to injecting the event).
*/
- if (svm->nrips_enabled)
+ if (guest_can_use(vcpu, X86_FEATURE_NRIPS))
vmcb02->control.next_rip = svm->nested.ctl.next_rip;
else if (boot_cpu_has(X86_FEATURE_NRIPS))
vmcb02->control.next_rip = vmcb12_rip;
@@ -727,7 +729,7 @@ static void nested_vmcb02_prepare_control(struct vcpu_svm *svm,
svm->soft_int_injected = true;
svm->soft_int_csbase = vmcb12_csbase;
svm->soft_int_old_rip = vmcb12_rip;
- if (svm->nrips_enabled)
+ if (guest_can_use(vcpu, X86_FEATURE_NRIPS))
svm->soft_int_next_rip = svm->nested.ctl.next_rip;
else
svm->soft_int_next_rip = vmcb12_rip;
@@ -735,15 +737,21 @@ static void nested_vmcb02_prepare_control(struct vcpu_svm *svm,
vmcb02->control.virt_ext = vmcb01->control.virt_ext &
LBR_CTL_ENABLE_MASK;
- if (svm->lbrv_enabled)
+ if (guest_can_use(vcpu, X86_FEATURE_LBRV))
vmcb02->control.virt_ext |=
(svm->nested.ctl.virt_ext & LBR_CTL_ENABLE_MASK);
if (!nested_vmcb_needs_vls_intercept(svm))
vmcb02->control.virt_ext |= VIRTUAL_VMLOAD_VMSAVE_ENABLE_MASK;
- pause_count12 = svm->pause_filter_enabled ? svm->nested.ctl.pause_filter_count : 0;
- pause_thresh12 = svm->pause_threshold_enabled ? svm->nested.ctl.pause_filter_thresh : 0;
+ if (guest_can_use(vcpu, X86_FEATURE_PAUSEFILTER))
+ pause_count12 = svm->nested.ctl.pause_filter_count;
+ else
+ pause_count12 = 0;
+ if (guest_can_use(vcpu, X86_FEATURE_PFTHRESHOLD))
+ pause_thresh12 = svm->nested.ctl.pause_filter_thresh;
+ else
+ pause_thresh12 = 0;
if (kvm_pause_in_guest(svm->vcpu.kvm)) {
/* use guest values since host doesn't intercept PAUSE */
vmcb02->control.pause_filter_count = pause_count12;
@@ -1027,7 +1035,7 @@ int nested_svm_vmexit(struct vcpu_svm *svm)
if (vmcb12->control.exit_code != SVM_EXIT_ERR)
nested_save_pending_event_to_vmcb12(svm, vmcb12);
- if (svm->nrips_enabled)
+ if (guest_can_use(vcpu, X86_FEATURE_NRIPS))
vmcb12->control.next_rip = vmcb02->control.next_rip;
vmcb12->control.int_ctl = svm->nested.ctl.int_ctl;
@@ -1066,7 +1074,8 @@ int nested_svm_vmexit(struct vcpu_svm *svm)
if (!nested_exit_on_intr(svm))
kvm_make_request(KVM_REQ_EVENT, &svm->vcpu);
- if (unlikely(svm->lbrv_enabled && (svm->nested.ctl.virt_ext & LBR_CTL_ENABLE_MASK))) {
+ if (unlikely(guest_can_use(vcpu, X86_FEATURE_LBRV) &&
+ (svm->nested.ctl.virt_ext & LBR_CTL_ENABLE_MASK))) {
svm_copy_lbrs(vmcb12, vmcb02);
svm_update_lbrv(vcpu);
} else if (unlikely(vmcb01->control.virt_ext & LBR_CTL_ENABLE_MASK)) {
@@ -1101,10 +1110,10 @@ int nested_svm_vmexit(struct vcpu_svm *svm)
vmcb_mark_dirty(vmcb01, VMCB_INTERCEPTS);
}
- if (svm->tsc_ratio_msr != kvm_caps.default_tsc_scaling_ratio) {
- WARN_ON(!svm->tsc_scaling_enabled);
+ if (kvm_caps.has_tsc_control &&
+ vcpu->arch.tsc_scaling_ratio != vcpu->arch.l1_tsc_scaling_ratio) {
vcpu->arch.tsc_scaling_ratio = vcpu->arch.l1_tsc_scaling_ratio;
- __svm_write_tsc_multiplier(vcpu->arch.tsc_scaling_ratio);
+ svm_write_tsc_multiplier(vcpu);
}
svm->nested.ctl.nested_cr3 = 0;
@@ -1537,7 +1546,7 @@ void nested_svm_update_tsc_ratio_msr(struct kvm_vcpu *vcpu)
vcpu->arch.tsc_scaling_ratio =
kvm_calc_nested_tsc_multiplier(vcpu->arch.l1_tsc_scaling_ratio,
svm->tsc_ratio_msr);
- __svm_write_tsc_multiplier(vcpu->arch.tsc_scaling_ratio);
+ svm_write_tsc_multiplier(vcpu);
}
/* Inverse operation of nested_copy_vmcb_control_to_cache(). asid is copied too. */
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-21 09:48:22 +0100