[PATCH 0/3] KVM: x86: MSR completion refactoring for SEV-ES
From: Paolo Bonzini
Date: Mon Dec 14 2020 - 13:35:13 EST
These patches remove kvm_inject_gp from the RDMSR/WRMSR emulation
path, with the purpose of letting SEV-ES inject the #GP through
the GHCB instead.
The main idea is to introduce a complete_emulated_msr callback
that is call-compatible with kvm_complete_insn_gp, so that svm.c
can just call kvm_complete_insn_gp in the common case.
I have more patches to use kvm_complete_insn_gp instead of
kvm_inject_gp in other paths, but they are not necessary for
SEV-ES so they can be delayed to 5.12.
Paolo
Paolo Bonzini (3):
KVM: x86: remove bogus #GP injection
KVM: x86: use kvm_complete_insn_gp in emulating RDMSR/WRMSR
KVM: x86: introduce complete_emulated_msr callback
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/mtrr.c | 6 +----
arch/x86/kvm/svm/svm.c | 1 +
arch/x86/kvm/vmx/vmx.c | 1 +
arch/x86/kvm/x86.c | 42 +++++++++++++--------------------
5 files changed, 20 insertions(+), 31 deletions(-)
--
2.26.2