KVM: x86: Use KVM_REQ_TLB_FLUSH_GUEST to handle INVPCID(ALL) emulation
Use KVM_REQ_TLB_FLUSH_GUEST instead of KVM_REQ_MMU_RELOAD when emulating INVPCID of all contexts. In the current code, this is a glorified nop as TLB_FLUSH_GUEST becomes kvm_mmu_unload(), same as MMU_RELOAD, when TDP is disabled, which is the only time INVPCID is only intercepted+emulated. In the future, reusing TLB_FLUSH_GUEST will simplify optimizing paths that emulate a guest TLB flush, e.g. by synchronizing as needed instead of completely unloading all MMUs. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210609234235.1244004-11-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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