Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=098c937ba30acc5b7dcb6a4ad7cc8d63c7117546
Commit: 098c937ba30acc5b7dcb6a4ad7cc8d63c7117546
Parent: 19eb938e0115693414a83b6bde2b67896bd9953a
Author: Nitin A Kamble <[EMAIL PROTECTED]>
AuthorDate: Sun Aug 19 11:00:36 2007 +0300
Committer: Avi Kivity <[EMAIL PROTECTED]>
CommitDate: Sat Oct 13 10:18:24 2007 +0200
KVM: x86 emulator: implement 'jmp rel' instruction (opcode 0xe9)
Signed-off-by: Nitin A Kamble <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
drivers/kvm/x86_emulate.c | 16 ++++++++++++++--
1 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c
index 2b94d16..fa7aa27 100644
--- a/drivers/kvm/x86_emulate.c
+++ b/drivers/kvm/x86_emulate.c
@@ -145,8 +145,10 @@ static u8 opcode_table[256] = {
0, 0, 0, 0,
/* 0xD8 - 0xDF */
0, 0, 0, 0, 0, 0, 0, 0,
- /* 0xE0 - 0xEF */
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ /* 0xE0 - 0xE7 */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ /* 0xE8 - 0xEF */
+ 0, SrcImm|ImplicitOps, 0, 0, 0, 0, 0, 0,
/* 0xF0 - 0xF7 */
0, 0, 0, 0,
ImplicitOps, 0,
@@ -447,6 +449,12 @@ struct operand {
(((reg) + _inc) & ((1UL << (ad_bytes << 3)) - 1)); \
} while (0)
+#define JMP_REL(rel) \
+ do { \
+ _eip += (int)(rel); \
+ _eip = ((op_bytes == 2) ? (uint16_t)_eip : (uint32_t)_eip); \
+ } while (0)
+
/*
* Given the 'reg' portion of a ModRM byte, and a register block, return a
* pointer into the block that addresses the relevant register.
@@ -1023,6 +1031,10 @@ done_prefixes:
case 0xd2 ... 0xd3: /* Grp2 */
src.val = _regs[VCPU_REGS_RCX];
goto grp2;
+ case 0xe9: /* jmp rel */
+ JMP_REL(src.val);
+ no_wb = 1; /* Disable writeback. */
+ break;
case 0xf6 ... 0xf7: /* Grp3 */
switch (modrm_reg) {
case 0 ... 1: /* test */
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
