Sean Christopherson 78bba966ee KVM: x86: Hide RDTSCP and RDPID if MSR_TSC_AUX probing failed ... If probing MSR_TSC_AUX failed, hide RDTSCP and RDPID, and WARN if either feature was reported as supported. In theory, such a scenario should never happen as both Intel and AMD state that MSR_TSC_AUX is available if RDTSCP or RDPID is supported. But, KVM injects #GP on MSR_TSC_AUX accesses if probing failed, faults on WRMSR(MSR_TSC_AUX) may be fatal to the guest (because they happen during early CPU bringup), and KVM itself has effectively misreported RDPID support in the past. Note, this also has the happy side effect of omitting MSR_TSC_AUX from the list of MSRs that are exposed to userspace if probing the MSR fails. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210504171734.1434054-16-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2021-05-07 06:06:19 -04:00
..
mmu	KVM: x86/mmu: Fix kdoc of __handle_changed_spte	2021-05-03 11:25:39 -04:00
svm	KVM: x86: Tie Intel and AMD behavior for MSR_TSC_AUX to guest CPU model	2021-05-07 06:06:19 -04:00
vmx	KVM: x86: Tie Intel and AMD behavior for MSR_TSC_AUX to guest CPU model	2021-05-07 06:06:19 -04:00
cpuid.c	KVM: x86: Hide RDTSCP and RDPID if MSR_TSC_AUX probing failed	2021-05-07 06:06:19 -04:00
cpuid.h	KVM: x86: Move reverse CPUID helpers to separate header file	2021-04-26 05:27:13 -04:00
debugfs.c	KVM: let kvm_destroy_vm_debugfs clean up vCPU debugfs directories	2020-06-04 11:00:54 -04:00
emulate.c	KVM: x86: Move RDPID emulation intercept to its own enum	2021-05-07 06:06:16 -04:00
hyperv.c	KVM: x86: hyper-v: Don't touch TSC page values when guest opted for re-enlightenment	2021-03-18 08:02:46 -04:00
hyperv.h	KVM: x86: hyper-v: Prevent using not-yet-updated TSC page by secondary CPUs	2021-03-17 04:03:22 -04:00
i8254.c	kvm: i8254: remove redundant assignment to pointer s	2020-06-11 12:35:18 -04:00
i8254.h
i8259.c	KVM: x86: Refactor picdev_write() to prevent Spectre-v1/L1TF attacks	2020-01-27 19:59:37 +01:00
ioapic.c	KVM: ioapic: break infinite recursion on lazy EOI	2020-10-24 04:42:06 -04:00
ioapic.h	kvm/x86: Remove redundant function implementations	2020-05-27 13:11:10 -04:00
irq_comm.c	x86: Fix various typos in comments	2021-03-18 15:31:53 +01:00
irq.c	KVM: x86/xen: Add event channel interrupt vector upcall	2021-02-04 14:19:39 +00:00
irq.h	kvm/x86: Remove redundant function implementations	2020-05-27 13:11:10 -04:00
Kconfig	x86/sgx: Introduce virtual EPC for use by KVM guests	2021-04-06 09:43:17 +02:00
kvm_cache_regs.h	KVM: x86: Rename GPR accessors to make mode-aware variants the defaults	2021-04-26 05:27:13 -04:00
kvm_emulate.h	KVM: x86: Move RDPID emulation intercept to its own enum	2021-05-07 06:06:16 -04:00
lapic.c	KVM: LAPIC: Accurately guarantee busy wait for timer to expire when using hv_timer	2021-05-03 11:25:35 -04:00
lapic.h	KVM: x86: hyper-v: Always use to_hv_vcpu() accessor to get to 'struct kvm_vcpu_hv'	2021-02-09 08:17:13 -05:00
Makefile	Merge branch 'kvm-sev-cgroup' into HEAD	2021-04-22 13:19:01 -04:00
mmu.h	KVM: x86: Get active PCID only when writing a CR3 value	2021-03-15 04:43:56 -04:00
mtrr.c	KVM: x86: Add helper to consolidate "raw" reserved GPA mask calculations	2021-02-04 09:27:30 -05:00
pmu.c	KVM: x86: use static calls to reduce kvm_x86_ops overhead	2021-02-04 05:27:30 -05:00
pmu.h	x86: Fix various typos in comments	2021-03-18 15:31:53 +01:00
reverse_cpuid.h	KVM: SEV: Mask CPUID[0x8000001F].eax according to supported features	2021-04-26 05:27:15 -04:00
trace.h	KVM: x86/xen: intercept xen hypercalls if enabled	2021-02-04 14:18:45 +00:00
tss.h
x86.c	KVM: x86: Tie Intel and AMD behavior for MSR_TSC_AUX to guest CPU model	2021-05-07 06:06:19 -04:00
x86.h	KVM: x86: Rename GPR accessors to make mode-aware variants the defaults	2021-04-26 05:27:13 -04:00
xen.c	KVM: x86: Rename GPR accessors to make mode-aware variants the defaults	2021-04-26 05:27:13 -04:00
xen.h	KVM: x86/xen: Add support for vCPU runstate information	2021-03-02 14:30:54 -05:00