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Code Issues Releases Wiki Activity
linux-stable/arch/x86/kvm
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Jim Mattson aae2e72229 KVM: x86: Hide IA32_PLATFORM_DCA_CAP[31:0] from the guest 
The only thing reported by CPUID.9 is the value of
IA32_PLATFORM_DCA_CAP[31:0] in EAX. This MSR doesn't even exist in the
guest, since CPUID.1:ECX.DCA[bit 18] is clear in the guest.

Clear CPUID.9 in KVM_GET_SUPPORTED_CPUID.

Fixes: 24c82e576b ("KVM: Sanitize cpuid")
Signed-off-by: Jim Mattson <jmattson@google.com>
Message-Id: <20220922231854.249383-1-jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-09-30 06:38:01 -04:00
..
mmu KVM: x86/mmu: add missing update to max_mmu_rmap_size 2022-09-22 17:03:20 -04:00
svm KVM: SVM: Disable SEV-ES support if MMIO caching is disable 2022-08-10 15:08:25 -04:00
vmx KVM: VMX: Heed the 'msr' argument in msr_write_intercepted() 2022-08-19 07:38:04 -04:00
cpuid.c KVM: x86: Hide IA32_PLATFORM_DCA_CAP[31:0] from the guest 2022-09-30 06:38:01 -04:00
cpuid.h KVM: x86: Add dedicated helper to get CPUID entry with significant index 2022-07-14 11:38:32 -04:00
debugfs.c KVM: x86: Introduce "struct kvm_caps" to track misc caps/settings 2022-06-08 05:21:16 -04:00
emulate.c KVM: x86: Inject #UD on emulated XSETBV if XSAVES isn't enabled 2022-09-22 17:04:20 -04:00
fpu.h
hyperv.c KVM: x86: Add dedicated helper to get CPUID entry with significant index 2022-07-14 11:38:32 -04:00
hyperv.h KVM: x86: hyper-v: Avoid writing to TSC page without an active vCPU 2022-04-11 13:29:51 -04:00
i8254.c KVM: x86: PIT: Preserve state of speaker port data bit 2022-06-08 13:06:20 -04:00
i8254.h KVM: x86: PIT: Preserve state of speaker port data bit 2022-06-08 13:06:20 -04:00
i8259.c KVM: x86/i8259: Remove a dead store of irq in a conditional block 2022-04-02 05:41:19 -04:00
ioapic.c KVM: x86/ioapic: Remove unused "addr" and "length" of ioapic_read_indirect() 2022-02-10 13:47:13 -05:00
ioapic.h x86/kvm: remove unused ack_notifier callbacks 2021-11-18 07:05:57 -05:00
irq.c KVM: x86/xen: handle PV timers oneshot mode 2022-04-02 05:41:16 -04:00
irq.h x86/kvm: remove unused ack_notifier callbacks 2021-11-18 07:05:57 -05:00
irq_comm.c KVM: x86/xen: Make kvm_xen_set_evtchn() reusable from other places 2022-04-02 05:41:14 -04:00
Kconfig KVM: x86/mmu: Remove MMU auditing 2022-02-18 13:46:23 -05:00
kvm_cache_regs.h KVM: X86: Remove kvm_register_clear_available() 2021-12-08 04:25:03 -05:00
kvm_emulate.h KVM: x86: Bug the VM if the emulator accesses a non-existent GPR 2022-06-10 10:01:33 -04:00
kvm_onhyperv.c KVM: x86: Uninline and export hv_track_root_tdp() 2022-02-10 13:47:19 -05:00
kvm_onhyperv.h KVM: x86: Uninline and export hv_track_root_tdp() 2022-02-10 13:47:19 -05:00
lapic.c KVM: x86: Bug the VM if an accelerated x2APIC trap occurs on a "bad" reg 2022-08-10 15:08:23 -04:00
lapic.h KVM: x86: Fix handling of APIC LVT updates when userspace changes MCG_CAP 2022-07-08 15:58:16 -07:00
Makefile KVM: Add Makefile.kvm for common files, use it for x86 2021-12-09 12:56:02 -05:00
mmu.h KVM: SVM: Disable SEV-ES support if MMIO caching is disable 2022-08-10 15:08:25 -04:00
mtrr.c
pmu.c Revert "KVM: x86: always allow host-initiated writes to PMU MSRs" 2022-06-20 11:49:46 -04:00
pmu.h Revert "KVM: x86: always allow host-initiated writes to PMU MSRs" 2022-06-20 11:49:46 -04:00
reverse_cpuid.h
trace.h KVM: x86: move all vcpu->arch.pio* setup in emulator_pio_in_out() 2022-06-24 12:53:50 -04:00
tss.h
x86.c KVM: x86: Inject #UD on emulated XSETBV if XSAVES isn't enabled 2022-09-22 17:04:20 -04:00
x86.h KVM: x86: Split kvm_is_valid_cr4() and export only the non-vendor bits 2022-07-28 13:22:25 -04:00
xen.c KVM: x86/xen: Stop Xen timer before changing IRQ 2022-08-10 15:08:25 -04:00
xen.h KVM: x86: do not set st->preempted when going back to user space 2022-06-08 04:21:06 -04:00