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authorGuillaume Thouvenin <guillaume.thouvenin@ext.bull.net>2008-12-04 14:29:00 +0100
committerAvi Kivity <avi@redhat.com>2008-12-31 16:55:42 +0200
commitd175226a5f54817ba427368c6b739aefa7780fb2 (patch)
tree4fdf34f9ce967a19885f231cc2726630ba6a3763 /arch/x86
parentbfcadf83ec5aafe600e73dd427d997db7bcc1d12 (diff)
KVM: x86 emulator: add the assembler code for three operands
Add the assembler code for instruction with three operands and one operand is stored in ECX register 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.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c
index 0c75306e7a07..9ae6d5b3e962 100644
--- a/arch/x86/kvm/x86_emulate.c
+++ b/arch/x86/kvm/x86_emulate.c
@@ -431,6 +431,45 @@ static u32 group2_table[] = {
__emulate_2op_nobyte(_op, _src, _dst, _eflags, \
"w", "r", _LO32, "r", "", "r")
+/* Instruction has three operands and one operand is stored in ECX register */
+#define __emulate_2op_cl(_op, _cl, _src, _dst, _eflags, _suffix, _type) \
+ do { \
+ unsigned long _tmp; \
+ _type _clv = (_cl).val; \
+ _type _srcv = (_src).val; \
+ _type _dstv = (_dst).val; \
+ \
+ __asm__ __volatile__ ( \
+ _PRE_EFLAGS("0", "5", "2") \
+ _op _suffix " %4,%1 \n" \
+ _POST_EFLAGS("0", "5", "2") \
+ : "=m" (_eflags), "+r" (_dstv), "=&r" (_tmp) \
+ : "c" (_clv) , "r" (_srcv), "i" (EFLAGS_MASK) \
+ ); \
+ \
+ (_cl).val = (unsigned long) _clv; \
+ (_src).val = (unsigned long) _srcv; \
+ (_dst).val = (unsigned long) _dstv; \
+ } while (0)
+
+#define emulate_2op_cl(_op, _cl, _src, _dst, _eflags) \
+ do { \
+ switch ((_dst).bytes) { \
+ case 2: \
+ __emulate_2op_cl(_op, _cl, _src, _dst, _eflags, \
+ "w", unsigned short); \
+ break; \
+ case 4: \
+ __emulate_2op_cl(_op, _cl, _src, _dst, _eflags, \
+ "l", unsigned int); \
+ break; \
+ case 8: \
+ ON64(__emulate_2op_cl(_op, _cl, _src, _dst, _eflags, \
+ "q", unsigned long)); \
+ break; \
+ } \
+ } while (0)
+
#define __emulate_1op(_op, _dst, _eflags, _suffix) \
do { \
unsigned long _tmp; \