linux-stable/arch/x86/kvm
Maxim Levitsky e910a53fb4 KVM: x86: nSVM: disallow userspace setting of MSR_AMD64_TSC_RATIO to non default value when tsc scaling disabled
If nested tsc scaling is disabled, MSR_AMD64_TSC_RATIO should
never have non default value.

Due to way nested tsc scaling support was implmented in qemu,
it would set this msr to 0 when nested tsc scaling was disabled.
Ignore that value for now, as it causes no harm.

Fixes: 5228eb96a4 ("KVM: x86: nSVM: implement nested TSC scaling")
Cc: stable@vger.kernel.org

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20220223115649.319134-1-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-02-24 13:04:47 -05:00
..
mmu KVM: x86/mmu: make apf token non-zero to fix bug 2022-02-24 13:04:46 -05:00
svm KVM: x86: nSVM: disallow userspace setting of MSR_AMD64_TSC_RATIO to non default value when tsc scaling disabled 2022-02-24 13:04:47 -05:00
vmx KVM: x86: nSVM/nVMX: set nested_run_pending on VM entry which is a result of RSM 2022-02-08 13:30:48 -05:00
cpuid.c x86/kvm/fpu: Remove kvm_vcpu_arch.guest_supported_xcr0 2022-02-17 10:06:49 -05:00
cpuid.h kvm: x86: Add support for getting/setting expanded xstate buffer 2022-01-14 13:44:41 -05:00
debugfs.c Merge branch 'kvm-pi-raw-spinlock' into HEAD 2022-01-19 12:14:02 -05:00
emulate.c RISCV: 2022-01-16 16:15:14 +02:00
fpu.h KVM: x86: Move FPU register accessors into fpu.h 2021-06-17 13:09:24 -04:00
hyperv.c Merge remote-tracking branch 'kvm/master' into HEAD 2021-12-21 12:51:09 -05:00
hyperv.h KVM: x86: Query vcpu->vcpu_idx directly and drop its accessor 2021-09-22 10:33:11 -04:00
i8254.c KVM: Use 'unsigned long' as kvm_for_each_vcpu()'s index 2021-12-08 04:24:15 -05:00
i8254.h
i8259.c KVM: Use 'unsigned long' as kvm_for_each_vcpu()'s index 2021-12-08 04:24:15 -05:00
ioapic.c KVM: Use 'unsigned long' as kvm_for_each_vcpu()'s index 2021-12-08 04:24:15 -05:00
ioapic.h x86/kvm: remove unused ack_notifier callbacks 2021-11-18 07:05:57 -05:00
irq.c KVM: x86/xen: Add event channel interrupt vector upcall 2021-02-04 14:19:39 +00:00
irq.h x86/kvm: remove unused ack_notifier callbacks 2021-11-18 07:05:57 -05:00
irq_comm.c KVM: x86/xen: Add KVM_IRQ_ROUTING_XEN_EVTCHN and event channel delivery 2022-01-07 10:44:45 -05:00
Kconfig RISCV: 2022-01-16 16:15:14 +02:00
kvm_cache_regs.h KVM: X86: Remove kvm_register_clear_available() 2021-12-08 04:25:03 -05:00
kvm_emulate.h KVM: x86: Update vPMCs when retiring branch instructions 2022-01-07 10:44:43 -05:00
kvm_onhyperv.c KVM: Use 'unsigned long' as kvm_for_each_vcpu()'s index 2021-12-08 04:24:15 -05:00
kvm_onhyperv.h KVM: x86: hyper-v: Move the remote TLB flush logic out of vmx 2021-06-17 13:09:36 -04:00
lapic.c KVM: x86: lapic: don't touch irr_pending in kvm_apic_update_apicv when inhibiting it 2022-02-08 13:30:49 -05:00
lapic.h KVM: x86: Rename kvm_lapic_enable_pv_eoi() 2021-11-11 10:56:22 -05:00
Makefile KVM: Add Makefile.kvm for common files, use it for x86 2021-12-09 12:56:02 -05:00
mmu.h KVM: X86: Add parameter huge_page_level to kvm_init_shadow_ept_mmu() 2021-12-08 04:25:12 -05:00
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/pmu: Use AMD64_RAW_EVENT_MASK for PERF_TYPE_RAW 2022-02-14 07:44:51 -05:00
pmu.h KVM: x86: Update vPMCs when retiring instructions 2022-01-07 10:44:42 -05:00
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: add a tracepoint for APICv/AVIC interrupt delivery 2021-12-09 09:07:39 -05:00
tss.h
x86.c x86/kvm: Fix compilation warning in non-x86_64 builds 2022-02-18 03:33:45 -05:00
x86.h KVM/arm64 fixes for 5.17, take #2 2022-02-05 00:58:25 -05:00
xen.c KVM: x86/xen: Fix runstate updates to be atomic when preempting vCPU 2022-02-10 13:39:06 -05:00
xen.h KVM: x86/xen: Add KVM_IRQ_ROUTING_XEN_EVTCHN and event channel delivery 2022-01-07 10:44:45 -05:00