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From:   Zeng Guang <guang.zeng@intel.com>
To:     Paolo Bonzini <pbonzini@redhat.com>,
        Sean Christopherson <seanjc@google.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        H Peter Anvin <hpa@zytor.com>, kvm@vger.kernel.org
Cc:     x86@kernel.org, linux-kernel@vger.kernel.org,
        Binbin Wu <binbin.wu@linux.intel.com>,
        Zeng Guang <guang.zeng@intel.com>
Subject: [PATCH v2 3/8] KVM: x86: Add an emulation flag for implicit system access
Date:   Wed, 19 Jul 2023 10:45:53 +0800
Message-Id: <20230719024558.8539-4-guang.zeng@intel.com>
In-Reply-To: <20230719024558.8539-1-guang.zeng@intel.com>
References: <20230719024558.8539-1-guang.zeng@intel.com>
Precedence: bulk

From: Binbin Wu <binbin.wu@linux.intel.com>

Add an emulation flag X86EMUL_F_IMPLICIT to identify the behavior of
implicit system access in instruction emulation.

Signed-off-by: Binbin Wu <binbin.wu@linux.intel.com>
Signed-off-by: Zeng Guang <guang.zeng@intel.com>
---
 arch/x86/kvm/kvm_emulate.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kvm/kvm_emulate.h b/arch/x86/kvm/kvm_emulate.h
index 9fc7d34a4ac1..c0e48f4fa7c4 100644
--- a/arch/x86/kvm/kvm_emulate.h
+++ b/arch/x86/kvm/kvm_emulate.h
@@ -92,6 +92,7 @@ struct x86_instruction_info {
 #define X86EMUL_F_WRITE			BIT(0)
 #define X86EMUL_F_FETCH			BIT(1)
 #define X86EMUL_F_BRANCH		BIT(2)
+#define X86EMUL_F_IMPLICIT		BIT(3)
 
 struct x86_emulate_ops {
 	void (*vm_bugged)(struct x86_emulate_ctxt *ctxt);
-- 
2.27.0