Messages in this thread Patch in this message |  | | From | Xiaoyao Li <> | Subject | [PATCH v4 5/5] KVM: x86: Move kvm_x86_ops.vcpu_after_set_cpuid() into kvm_vcpu_after_set_cpuid() | Date | Thu, 9 Jul 2020 12:34:26 +0800 |
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kvm_x86_ops.vcpu_after_set_cpuid() is used to update vmx/svm specific vcpu settings based on updated CPUID settings. So it's supposed to be called after CPUIDs are updated, i.e., kvm_update_cpuid_runtime().
Currently, kvm_update_cpuid_runtime() only updates CPUID bits of OSXSAVE, APIC, OSPKE, MWAIT, KVM_FEATURE_PV_UNHALT and CPUID(0xD,0).ebx and CPUID(0xD, 1).ebx. None of them is consumed by vmx/svm's update_vcpu_after_set_cpuid(). So there is no dependency between them.
Move kvm_x86_ops.vcpu_after_set_cpuid() into kvm_vcpu_after_set_cpuid() is obviously more reasonable.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com> --- --- arch/x86/kvm/cpuid.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index 832a24c1334e..edbed4f522f2 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -121,6 +121,8 @@ static void kvm_vcpu_after_set_cpuid(struct kvm_vcpu *vcpu) struct kvm_lapic *apic = vcpu->arch.apic; struct kvm_cpuid_entry2 *best; + kvm_x86_ops.vcpu_after_set_cpuid(vcpu); + best = kvm_find_cpuid_entry(vcpu, 1, 0); if (best && apic) { if (cpuid_entry_has(best, X86_FEATURE_TSC_DEADLINE_TIMER)) @@ -228,7 +230,6 @@ int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu, } cpuid_fix_nx_cap(vcpu); - kvm_x86_ops.vcpu_after_set_cpuid(vcpu); kvm_update_cpuid_runtime(vcpu); kvm_vcpu_after_set_cpuid(vcpu); @@ -257,7 +258,6 @@ int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu, goto out; } - kvm_x86_ops.vcpu_after_set_cpuid(vcpu); kvm_update_cpuid_runtime(vcpu); kvm_vcpu_after_set_cpuid(vcpu); out: -- 2.18.4
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