KVM: x86 emulator: implement IMUL REG, R/M (opcode 0F AF) (5c82aa29) · Commits · e / devices / android_kernel_fairphone_FP5

arch/x86/kvm/emulate.c

+10 −3

Original line number	Diff line number	Diff line
		@@ -2264,15 +2264,22 @@ static int em_ret_near_imm(struct x86_emulate_ctxt *ctxt)
		return X86EMUL_CONTINUE;
		}

		static int em_imul_3op(struct x86_emulate_ctxt *ctxt)
		static int em_imul(struct x86_emulate_ctxt *ctxt)
		{
		struct decode_cache *c = &ctxt->decode;

		c->dst.val = c->src2.val;
		emulate_2op_SrcV_nobyte("imul", c->src, c->dst, ctxt->eflags);
		return X86EMUL_CONTINUE;
		}

		static int em_imul_3op(struct x86_emulate_ctxt *ctxt)
		{
		struct decode_cache *c = &ctxt->decode;

		c->dst.val = c->src2.val;
		return em_imul(ctxt);
		}

		#define D(_y) { .flags = (_y) }
		#define N D(0)
		#define G(_f, _g) { .flags = ((_f) \| Group), .u.group = (_g) }
		@@ -2488,7 +2495,7 @@ static struct opcode twobyte_table[256] = {
		N, D(DstMem \| SrcReg \| ModRM \| BitOp \| Lock),
		D(DstMem \| SrcReg \| Src2ImmByte \| ModRM),
		D(DstMem \| SrcReg \| Src2CL \| ModRM),
		D(ModRM), N,
		D(ModRM), I(DstReg \| SrcMem \| ModRM, em_imul),
		/* 0xB0 - 0xB7 */
		D(ByteOp \| DstMem \| SrcReg \| ModRM \| Lock), D(DstMem \| SrcReg \| ModRM \| Lock),
		N, D(DstMem \| SrcReg \| ModRM \| BitOp \| Lock),