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authorGuillaume Thouvenin <guillaume.thouvenin@ext.bull.net>2008-12-04 14:27:38 +0100
committerAvi Kivity <avi@redhat.com>2008-12-31 16:55:42 +0200
commitbfcadf83ec5aafe600e73dd427d997db7bcc1d12 (patch)
tree955241dfdd3cc4c9cee5c67a04aa0a75f2a91bb8 /arch/x86
parent0dc8d10f7d848b63c8d32cf6fd31ba7def792ac9 (diff)
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: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/kvm/x86_emulate.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c
index 7f5cd62362c..0c75306e7a0 100644
--- a/arch/x86/kvm/x86_emulate.c
+++ b/arch/x86/kvm/x86_emulate.c
@@ -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 @@ done_prefixes:
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;
}
/*