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Commit bfcadf83 authored by Guillaume Thouvenin's avatar Guillaume Thouvenin Committed by Avi Kivity
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KVM: x86 emulator: add a new "implied 1" Src decode type 



Add SrcOne operand type when we need to decode an implied '1' like with
regular shift instruction

Signed-off-by: default avatarGuillaume Thouvenin <guillaume.thouvenin@ext.bull.net>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 0dc8d10f

arch/x86/kvm/x86_emulate.c

+5 −0
Original line number Diff line number Diff line
@@ -58,6 +58,7 @@ 
#define SrcMem32    (4<<4)	/* Memory operand (32-bit). */

#define SrcImm      (5<<4)	/* Immediate operand. */

#define SrcImmByte  (6<<4)	/* 8-bit sign-extended immediate operand. */

#define SrcOne      (7<<4)	/* Implied '1' */

#define SrcMask     (7<<4)

/* Generic ModRM decode. */

#define ModRM       (1<<7)
@@ -1004,6 +1005,10 @@ x86_decode_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops) 
		c->src.bytes = 1;

		c->src.val = insn_fetch(s8, 1, c->eip);

		break;

	case SrcOne:

		c->src.bytes = 1;

		c->src.val = 1;

		break;

	}



	/*