Tom Lendacky 916e3e5f26 KVM: SVM: Do not use user return MSR support for virtualized TSC_AUX ... When the TSC_AUX MSR is virtualized, the TSC_AUX value is swap type "B" within the VMSA. This means that the guest value is loaded on VMRUN and the host value is restored from the host save area on #VMEXIT. Since the value is restored on #VMEXIT, the KVM user return MSR support for TSC_AUX can be replaced by populating the host save area with the current host value of TSC_AUX. And, since TSC_AUX is not changed by Linux post-boot, the host save area can be set once in svm_hardware_enable(). This eliminates the two WRMSR instructions associated with the user return MSR support. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Message-Id: <d381de38eb0ab6c9c93dda8503b72b72546053d7.1694811272.git.thomas.lendacky@amd.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2023-09-23 05:35:49 -04:00
..
mmu	KVM: x86/mmu: Stop zapping invalidated TDP MMU roots asynchronously	2023-09-23 05:35:48 -04:00
svm	KVM: SVM: Do not use user return MSR support for virtualized TSC_AUX	2023-09-23 05:35:49 -04:00
vmx	ARM:	2023-09-07 13:52:20 -07:00
.gitignore
cpuid.c
cpuid.h
debugfs.c
emulate.c
fpu.h
governed_features.h
hyperv.c
hyperv.h
i8254.c
i8254.h
i8259.c
ioapic.c
ioapic.h
irq_comm.c
irq.c
irq.h
Kconfig	KVM: x86/mmu: Replace MMU_DEBUG with proper KVM_PROVE_MMU Kconfig	2023-08-31 13:48:47 -04:00
kvm_cache_regs.h
kvm_emulate.h
kvm_onhyperv.c
kvm_onhyperv.h
kvm-asm-offsets.c
lapic.c
lapic.h
Makefile
mmu.h	KVM: x86/mmu: Don't bounce through page-track mechanism for guest PTEs	2023-08-31 13:49:00 -04:00
mtrr.c
pmu.c
pmu.h
reverse_cpuid.h
smm.c
smm.h
trace.h
tss.h
x86.c	KVM: x86/mmu: Stop zapping invalidated TDP MMU roots asynchronously	2023-09-23 05:35:48 -04:00
x86.h
xen.c
xen.h