Sean Christopherson 1edce0a9eb KVM: x86: Add kvm_emulate_{rd,wr}msr() to consolidate VXM/SVM code ... Move RDMSR and WRMSR emulation into common x86 code to consolidate nearly identical SVM and VMX code. Note, consolidating RDMSR introduces an extra indirect call, i.e. retpoline, due to reaching {svm,vmx}_get_msr() via kvm_x86_ops, but a guest kernel likely has bigger problems if increasing the latency of RDMSR VM-Exits by ~70 cycles has a measurable impact on overall VM performance. E.g. the only recurring RDMSR VM-Exits (after booting) on my system running Linux 5.2 in the guest are for MSR_IA32_TSC_ADJUST via arch_cpu_idle_enter(). No functional change intended. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2019-09-10 19:18:29 +02:00
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asm	KVM: x86: Add kvm_emulate_{rd,wr}msr() to consolidate VXM/SVM code	2019-09-10 19:18:29 +02:00
uapi/asm	treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers	2019-07-25 11:05:10 +02:00