This patch series provides fixes to the TSC_AUX virtualization support and an optimization to reduce the number of WRMSRs to TSC_AUX when it is virtualized. --- Changes since v1: - Move TSC_AUX virtualization support out of init_vmcb_after_set_cpuid() path and into the vcpu_after_set_cpuid() path - Add an additional patch to properly set or clear intercepts based on TSC_AUX virtualization requirements - Simplify the TSC_AUX virtualization optimization to set the host save area TSC_AUX value once during svm_hardware_enable(). - Since the TSC_AUX virtualization can't be disabled for an SEV-ES guest, eliminate the "v_tsc_aux" flag and check against the host feature and type of guest, directly. Patches based on https://git.kernel.org/pub/scm/virt/kvm/kvm.git master and commit: 7c7cce2cf7ee ("Merge tag 'kvmarm-fixes-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD") Tom Lendacky (3): KVM: SVM: Fix TSC_AUX virtualization setup KVM: SVM: Fix TSC_AUX virtualization intercept update logic KVM: SVM: Do not use user return MSR support for virtualized TSC_AUX arch/x86/kvm/svm/sev.c | 34 +++++++++++++++++++++++++-------- arch/x86/kvm/svm/svm.c | 43 ++++++++++++++++++++++++++++++++++-------- arch/x86/kvm/svm/svm.h | 1 + 3 files changed, 62 insertions(+), 16 deletions(-) -- 2.41.0
