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| author | Avi Kivity <avi@redhat.com> | 2010-08-26 11:56:06 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-10-24 10:51:35 +0200 |
| commit | 8d8f4e9f66ab36e4fcc75eca1e828af8466309f1 (patch) | |
| tree | eac8232b0446d4d7cd853da7d0ce5583680e8ebc /arch/x86/kvm/emulate.c | |
| parent | 081bca0e6b87d0c7b9ade7ffee1f44aca336a8fa (diff) | |
| download | talos-obmc-linux-8d8f4e9f66ab36e4fcc75eca1e828af8466309f1.tar.gz talos-obmc-linux-8d8f4e9f66ab36e4fcc75eca1e828af8466309f1.zip | |
KVM: x86 emulator: support byte/word opcode pairs
Many x86 instructions come in byte and word variants distinguished with bit
0 of the opcode. Add macros to aid in defining them.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kvm/emulate.c')
| -rw-r--r-- | arch/x86/kvm/emulate.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 2b9b0feabdba..1a230b5495e0 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -2330,6 +2330,9 @@ static int em_rdtsc(struct x86_emulate_ctxt *ctxt) #define GD(_f, _g) { .flags = ((_f) | Group | GroupDual), .u.gdual = (_g) } #define I(_f, _e) { .flags = (_f), .u.execute = (_e) } +#define D2bv(_f) D((_f) | ByteOp), D(_f) +#define I2bv(_f, _e) I((_f) | ByteOp, _e), I(_f, _e) + static struct opcode group1[] = { X7(D(Lock)), N }; @@ -2572,6 +2575,9 @@ static struct opcode twobyte_table[256] = { #undef GD #undef I +#undef D2bv +#undef I2bv + static unsigned imm_size(struct decode_cache *c) { unsigned size; |
