AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/arch/x86/kvm/vmx
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Sean Christopherson 0cf9135b77 KVM: x86: Emulate MSR_IA32_ARCH_CAPABILITIES on AMD hosts 
The CPUID flag ARCH_CAPABILITIES is unconditioinally exposed to host
userspace for all x86 hosts, i.e. KVM advertises ARCH_CAPABILITIES
regardless of hardware support under the pretense that KVM fully
emulates MSR_IA32_ARCH_CAPABILITIES.  Unfortunately, only VMX hosts
handle accesses to MSR_IA32_ARCH_CAPABILITIES (despite KVM_GET_MSRS
also reporting MSR_IA32_ARCH_CAPABILITIES for all hosts).

Move the MSR_IA32_ARCH_CAPABILITIES handling to common x86 code so
that it's emulated on AMD hosts.

Fixes: 1eaafe91a0 ("kvm: x86: IA32_ARCH_CAPABILITIES is always supported")
Cc: stable@vger.kernel.org
Reported-by: Xiaoyao Li <xiaoyao.li@linux.intel.com>
Cc: Jim Mattson <jmattson@google.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-03-28 17:29:00 +01:00
..
capabilities.h KVM: x86: Add Intel PT virtualization work mode 2018-12-21 11:28:34 +01:00
evmcs.c x86/kvm/hyper-v: nested_enable_evmcs() sets vmcs_version incorrectly 2019-01-25 19:11:37 +01:00
evmcs.h x86/kvm/hyper-v: Introduce nested_get_evmcs_version() helper 2018-12-14 17:59:54 +01:00
nested.c kvm: nVMX: Add a vmentry check for HOST_SYSENTER_ESP and HOST_SYSENTER_EIP fields 2019-03-28 17:27:18 +01:00
nested.h KVM: nVMX: Move nested code to dedicated files 2018-12-14 17:59:46 +01:00
ops.h KVM: VMX: Move VMX instruction wrappers to a dedicated header file 2018-12-14 17:17:27 +01:00
pmu_intel.c
vmcs12.c KVM: nVMX: Move vmcs12 code to dedicated files 2018-12-14 12:34:30 +01:00
vmcs12.h KVM: nVMX: Move vmcs12 code to dedicated files 2018-12-14 12:34:30 +01:00
vmcs_shadow_fields.h
vmcs.h KVM: nVMX: Cache host_rsp on a per-VMCS basis 2019-02-12 13:12:22 +01:00
vmenter.S KVM: VMX: Reorder clearing of registers in the vCPU-run assembly flow 2019-02-20 22:48:18 +01:00
vmx.c KVM: x86: Emulate MSR_IA32_ARCH_CAPABILITIES on AMD hosts 2019-03-28 17:29:00 +01:00
vmx.h KVM: x86: Emulate MSR_IA32_ARCH_CAPABILITIES on AMD hosts 2019-03-28 17:29:00 +01:00