KVM: x86 emulator: Add vmmcall/vmcall to x86_emulate (v3) (aca7f966) · Commits · 戴 / test

Add vmmcall/vmcall to x86_emulate. Future patch will implement functionality for these instructions. Signed-off-by:

drivers/kvm/x86_emulate.c

+17 −6

Original line number	Diff line number	Diff line
		@@ -1380,6 +1380,12 @@ twobyte_insn:
		u16 size;
		unsigned long address;

		case 0: /* vmcall */
		if (modrm_mod != 3 \|\| modrm_rm != 1)
		goto cannot_emulate;

		/* nop */
		break;
		case 2: /* lgdt */
		rc = read_descriptor(ctxt, ops, src.ptr,
		&size, &address, op_bytes);
		@@ -1387,12 +1393,17 @@ twobyte_insn:
		goto done;
		realmode_lgdt(ctxt->vcpu, size, address);
		break;
		case 3: /* lidt */
		case 3: /* lidt/vmmcall */
		if (modrm_mod == 3 && modrm_rm == 1) {
		/* nop */
		} else {
		rc = read_descriptor(ctxt, ops, src.ptr,
		&size, &address, op_bytes);
		&size, &address,
		op_bytes);
		if (rc)
		goto done;
		realmode_lidt(ctxt->vcpu, size, address);
		}
		break;
		case 4: /* smsw */
		if (modrm_mod != 3)