diff options
| author | Mark Brown <broonie@kernel.org> | 2024-06-15 16:24:35 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-06-15 16:24:35 +0100 |
| commit | c8d0930a047849cc816475b58656201e5a531adc (patch) | |
| tree | c617af6cca234956921a042392b36181e1b85f2e /arch/x86/kvm/svm/sev.c | |
| parent | 7fbc4f5e633cbc23576c32ff9773faa1788afc2d (diff) | |
| parent | 432e5074f805d0f976c7430af376a0dd07f1c6d7 (diff) | |
ASoC: codecs: lpass: add support for v2.5 rx macro
Merge series from Srinivas Kandagatla <srinivas.kandagatla@linaro.org>:
This patchset adds support to reading codec version and also adds
support for v2.5 codec version in rx macro.
LPASS 2.5 and up versions have changes in some of the rx blocks which
are required to get headset functional correctly.
Tested this on SM8450, X13s and x1e80100 crd.
This changes also fixes issue with sm8450, sm8550, sm8660 and x1e80100.
Diffstat (limited to 'arch/x86/kvm/svm/sev.c')
| -rw-r--r-- | arch/x86/kvm/svm/sev.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index 0623cfaa7bb0..95095a233a45 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -779,6 +779,14 @@ static int __sev_launch_update_vmsa(struct kvm *kvm, struct kvm_vcpu *vcpu, */ fpstate_set_confidential(&vcpu->arch.guest_fpu); vcpu->arch.guest_state_protected = true; + + /* + * SEV-ES guest mandates LBR Virtualization to be _always_ ON. Enable it + * only after setting guest_state_protected because KVM_SET_MSRS allows + * dynamic toggling of LBRV (for performance reason) on write access to + * MSR_IA32_DEBUGCTLMSR when guest_state_protected is not set. + */ + svm_enable_lbrv(vcpu); return 0; } @@ -2406,6 +2414,12 @@ void __init sev_hardware_setup(void) if (!boot_cpu_has(X86_FEATURE_SEV_ES)) goto out; + if (!lbrv) { + WARN_ONCE(!boot_cpu_has(X86_FEATURE_LBRV), + "LBRV must be present for SEV-ES support"); + goto out; + } + /* Has the system been allocated ASIDs for SEV-ES? */ if (min_sev_asid == 1) goto out; @@ -3216,7 +3230,6 @@ static void sev_es_init_vmcb(struct vcpu_svm *svm) struct kvm_vcpu *vcpu = &svm->vcpu; svm->vmcb->control.nested_ctl |= SVM_NESTED_CTL_SEV_ES_ENABLE; - svm->vmcb->control.virt_ext |= LBR_CTL_ENABLE_MASK; /* * An SEV-ES guest requires a VMSA area that is a separate from the @@ -3268,10 +3281,6 @@ static void sev_es_init_vmcb(struct vcpu_svm *svm) /* Clear intercepts on selected MSRs */ set_msr_interception(vcpu, svm->msrpm, MSR_EFER, 1, 1); set_msr_interception(vcpu, svm->msrpm, MSR_IA32_CR_PAT, 1, 1); - set_msr_interception(vcpu, svm->msrpm, MSR_IA32_LASTBRANCHFROMIP, 1, 1); - set_msr_interception(vcpu, svm->msrpm, MSR_IA32_LASTBRANCHTOIP, 1, 1); - set_msr_interception(vcpu, svm->msrpm, MSR_IA32_LASTINTFROMIP, 1, 1); - set_msr_interception(vcpu, svm->msrpm, MSR_IA32_LASTINTTOIP, 1, 1); } void sev_init_vmcb(struct vcpu_svm *svm) |