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

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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>
This commit is contained in:
Sean Christopherson 2025-01-31 17:55:13 -08:00
parent 08e3d89eb3
commit 407d03fe92
2 changed files with 4 additions and 0 deletions
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2
arch/x86/kvm/emulate.c
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@ -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,
};

2
arch/x86/kvm/kvm_emulate.h
View File

@ -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 */
};