linux_dsm_epyc7002/arch/x86/kvm/vmx
Sean Christopherson 567926cca9 KVM: nVMX: Fix consistency check on injected exception error code
Current versions of Intel's SDM incorrectly state that "bits 31:15 of
the VM-Entry exception error-code field" must be zero.  In reality, bits
31:16 must be zero, i.e. error codes are 16-bit values.

The bogus error code check manifests as an unexpected VM-Entry failure
due to an invalid code field (error number 7) in L1, e.g. when injecting
a #GP with error_code=0x9f00.

Nadav previously reported the bug[*], both to KVM and Intel, and fixed
the associated kvm-unit-test.

[*] https://patchwork.kernel.org/patch/11124749/

Reported-by: Nadav Amit <namit@vmware.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-10-03 12:32:44 +02:00
..
capabilities.h KVM: x86: Add support for user wait instructions 2019-09-24 14:34:20 +02:00
evmcs.c
evmcs.h KVM/Hyper-V/VMX: Add direct tlb flush support 2019-09-24 13:37:14 +02:00
nested.c KVM: nVMX: Fix consistency check on injected exception error code 2019-10-03 12:32:44 +02:00
nested.h
ops.h KVM: VMX: Add error handling to VMREAD helper 2019-09-25 15:30:09 +02:00
pmu_intel.c kvm: vmx: Limit guest PMCs to those supported on the host 2019-10-01 15:15:06 +02:00
vmcs12.c
vmcs12.h
vmcs_shadow_fields.h
vmcs.h
vmenter.S KVM: VMX: Fix and tweak the comments for VM-Enter 2019-08-22 10:09:27 +02:00
vmx.c KVM: VMX: Set VMENTER_L1D_FLUSH_NOT_REQUIRED if !X86_BUG_L1TF 2019-09-27 18:04:18 +02:00
vmx.h KVM: vmx: Emulate MSR IA32_UMWAIT_CONTROL 2019-09-24 14:34:36 +02:00