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KVM: X86: Introduce more exit_fastpath_completion enum values

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Adds a fastpath_t typedef since enum lines are a bit long, and replace
EXIT_FASTPATH_SKIP_EMUL_INS with two new exit_fastpath_completion enum values.

- EXIT_FASTPATH_EXIT_HANDLED  kvm will still go through it's full run loop,
                              but it would skip invoking the exit handler.

- EXIT_FASTPATH_REENTER_GUEST complete fastpath, guest can be re-entered
                              without invoking the exit handler or going
                              back to vcpu_run

Tested-by: Haiwei Li <lihaiwei@tencent.com>
Cc: Haiwei Li <lihaiwei@tencent.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1588055009-12677-4-git-send-email-wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Wanpeng Li
2020-04-28 14:23:25 +08:00
committed by Paolo Bonzini
parent 5a9f54435a
commit 404d5d7bff
5 changed files with 39 additions and 27 deletions
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4
arch/x86/include/asm/kvm_host.h
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@@ -182,8 +182,10 @@ enum {
enum exit_fastpath_completion {
EXIT_FASTPATH_NONE,
EXIT_FASTPATH_SKIP_EMUL_INS,
EXIT_FASTPATH_REENTER_GUEST,
EXIT_FASTPATH_EXIT_HANDLED,
};
typedef enum exit_fastpath_completion fastpath_t;
struct x86_emulate_ctxt;
struct x86_exception;