KVM: x86: Plumb the src/dst operand types through to .check_intercept()

JIRA: https://issues.redhat.com/browse/RHEL-95318

commit 407d03f
Author: Sean Christopherson <seanjc@google.com>
Date:   Fri Jan 31 17:55:13 2025 -0800

    KVM: x86: Plumb the src/dst operand types through to .check_intercept()

    When checking for intercept when emulating an instruction on behalf of L2,
    forward the source and destination operand types to vendor code so that
    VMX can synthesize the correct EXIT_QUALIFICATION for port I/O VM-Exits.

    Link: https://lore.kernel.org/r/20250201015518.689704-7-seanjc@google.com
    Signed-off-by: Sean Christopherson <seanjc@google.com>

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Author: Maxim Levitsky

arch/x86/kvm/emulate.c

@@ -477,6 +477,8 @@ static int emulator_check_intercept(struct x86_emulate_ctxt *ctxt,
 		.dst_val    = ctxt->dst.val64,
 		.src_bytes  = ctxt->src.bytes,
 		.dst_bytes  = ctxt->dst.bytes,
+		.src_type   = ctxt->src.type,
+		.dst_type   = ctxt->dst.type,
 		.ad_bytes   = ctxt->ad_bytes,
 		.next_rip   = ctxt->_eip,
 	};

arch/x86/kvm/kvm_emulate.h

@@ -44,6 +44,8 @@ struct x86_instruction_info {
 	u64 dst_val;            /* value of destination operand         */
 	u8  src_bytes;          /* size of source operand               */
 	u8  dst_bytes;          /* size of destination operand          */
+	u8  src_type;		/* type of source operand		*/
+	u8  dst_type;		/* type of destination operand		*/
 	u8  ad_bytes;           /* size of src/dst address              */
 	u64 next_rip;           /* rip following the instruction        */
 };