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bc2ca3680b
linux-next/arch/x86/kvm
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Sean Christopherson bc2ca3680b KVM: x86: Disallow changing MSR_PLATFORM_INFO after vCPU has run 
Tag MSR_PLATFORM_INFO as a feature MSR (because it is), i.e. disallow it
from being modified after the vCPU has run.

To make KVM's selftest compliant, simply delete the userspace MSR write
that restores KVM's original value at the end of the test.  Verifying that
userspace can write back what it originally read is uninteresting in this
particular case, because KVM doesn't enforce _any_ bits in the MSR, i.e.
userspace should be able to write any arbitrary value.

Link: https://lore.kernel.org/r/20240802185511.305849-3-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
2024-11-01 09:22:30 -07:00
..
mmu KVM: x86: model canonical checks more precisely 2024-11-01 09:22:26 -07:00
svm KVM: x86: Bypass register cache when querying CPL from kvm_sched_out() 2024-11-01 09:22:21 -07:00
vmx KVM: nVMX: fix canonical check of vmcs12 HOST_RIP 2024-11-01 09:22:27 -07:00
.gitignore KVM: x86: use a separate asm-offsets.c file 2022-11-09 12:10:17 -05:00
cpuid.c KVM: x86: AMD's IBPB is not equivalent to Intel's IBPB 2024-11-01 09:22:20 -07:00
cpuid.h KVM: x86: drop x86.h include from cpuid.h 2024-11-01 09:22:23 -07:00
debugfs.c KVM: Get rid of return value from kvm_arch_create_vm_debugfs() 2024-02-23 21:44:58 +00:00
emulate.c KVM: x86: Add X86EMUL_F_MSR and X86EMUL_F_DT_LOAD to aid canonical checks 2024-11-01 09:22:25 -07:00
fpu.h KVM: x86: Move FPU register accessors into fpu.h 2021-06-17 13:09:24 -04:00
governed_features.h KVM: x86: Use KVM-governed feature framework to track "LAM enabled" 2023-11-28 17:54:09 -08:00
hyperv.c KVM: x86: Introduce kvm_x86_call() to simplify static calls of kvm_x86_ops 2024-07-16 12:14:12 -04:00
hyperv.h KVM: x86: hyper-v: Remove unused inline function kvm_hv_free_pa_page() 2024-08-13 09:28:48 -04:00
i8254.c KVM: x86: Unify pr_fmt to use module name for all KVM modules 2022-12-29 15:47:35 -05:00
i8254.h KVM: x86: PIT: Preserve state of speaker port data bit 2022-06-08 13:06:20 -04:00
i8259.c KVM: x86: Fix poll command 2023-06-01 13:44:13 -07:00
ioapic.c KVM: x86/ioapic: Resample the pending state of an IRQ when unmasking 2023-03-27 10:13:28 -04:00
ioapic.h x86/kvm: remove unused ack_notifier callbacks 2021-11-18 07:05:57 -05:00
irq_comm.c KVM: x86: Don't re-setup empty IRQ routing when KVM_CAP_SPLIT_IRQCHIP 2024-06-11 14:18:40 -07:00
irq.c KVM: x86: Fold kvm_get_apic_interrupt() into kvm_cpu_get_interrupt() 2024-09-09 20:15:01 -07:00
irq.h KVM: x86: Don't re-setup empty IRQ routing when KVM_CAP_SPLIT_IRQCHIP 2024-06-11 14:18:40 -07:00
Kconfig KVM: x86: leave kvm.ko out of the build if no vendor module is requested 2024-10-06 03:53:41 -04:00
kvm_cache_regs.h KVM: x86: Add lockdep-guarded asserts on register cache usage 2024-11-01 09:22:22 -07:00
kvm_emulate.h KVM: x86: Add X86EMUL_F_MSR and X86EMUL_F_DT_LOAD to aid canonical checks 2024-11-01 09:22:25 -07:00
kvm_onhyperv.c KVM: x86/mmu: Move filling of Hyper-V's TLB range struct into Hyper-V code 2023-04-10 15:17:29 -07:00
kvm_onhyperv.h KVM: x86: Move Hyper-V partition assist page out of Hyper-V emulation context 2023-12-07 09:34:01 -08:00
kvm-asm-offsets.c KVM: SVM: move MSR_IA32_SPEC_CTRL save/restore to assembly 2022-11-09 12:25:53 -05:00
lapic.c Merge tag 'kvm-x86-vmx-6.12' of https://github.com/kvm-x86/linux into HEAD 2024-09-17 12:41:23 -04:00
lapic.h Merge tag 'kvm-x86-vmx-6.12' of https://github.com/kvm-x86/linux into HEAD 2024-09-17 12:41:23 -04:00
Makefile KVM: x86: leave kvm.ko out of the build if no vendor module is requested 2024-10-06 03:53:41 -04:00
mmu.h KVM: x86: drop x86.h include from cpuid.h 2024-11-01 09:22:23 -07:00
mtrr.c KVM: x86: drop x86.h include from cpuid.h 2024-11-01 09:22:23 -07:00
pmu.c KVM: x86/pmu: Add kvm_pmu_call() to simplify static calls of kvm_pmu_ops 2024-07-16 12:14:12 -04:00
pmu.h KVM: x86/pmu: Introduce distinct macros for GP/fixed counter max number 2024-06-28 09:12:16 -07:00
reverse_cpuid.h KVM: x86: Advertise AVX10.1 CPUID to userspace 2024-08-22 11:25:25 -07:00
smm.c KVM: x86: Forcibly leave nested if RSM to L2 hits shutdown 2024-09-09 20:09:49 -07:00
smm.h KVM: x86: smm: preserve interrupt shadow in SMRAM 2022-11-09 12:31:26 -05:00
trace.h KVM: x86: Introduce kvm_x86_call() to simplify static calls of kvm_x86_ops 2024-07-16 12:14:12 -04:00
tss.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
x86.c KVM: x86: Disallow changing MSR_PLATFORM_INFO after vCPU has run 2024-11-01 09:22:30 -07:00
x86.h KVM: x86: model canonical checks more precisely 2024-11-01 09:22:26 -07:00
xen.c KVM: x86: Introduce kvm_x86_call() to simplify static calls of kvm_x86_ops 2024-07-16 12:14:12 -04:00
xen.h KVM: x86/xen: inject vCPU upcall vector when local APIC is enabled 2024-03-04 16:22:36 -08:00