KVM: x86 emulator: implement 'jmp rel' instruction (opcode 0xe9)
Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
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Родитель
19eb938e01
Коммит
098c937ba3
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@ -145,8 +145,10 @@ static u8 opcode_table[256] = {
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0, 0, 0, 0,
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/* 0xD8 - 0xDF */
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0, 0, 0, 0, 0, 0, 0, 0,
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/* 0xE0 - 0xEF */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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/* 0xE0 - 0xE7 */
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0, 0, 0, 0, 0, 0, 0, 0,
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/* 0xE8 - 0xEF */
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0, SrcImm|ImplicitOps, 0, 0, 0, 0, 0, 0,
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/* 0xF0 - 0xF7 */
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0, 0, 0, 0,
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ImplicitOps, 0,
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@ -447,6 +449,12 @@ struct operand {
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(((reg) + _inc) & ((1UL << (ad_bytes << 3)) - 1)); \
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} while (0)
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#define JMP_REL(rel) \
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do { \
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_eip += (int)(rel); \
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_eip = ((op_bytes == 2) ? (uint16_t)_eip : (uint32_t)_eip); \
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} while (0)
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/*
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* Given the 'reg' portion of a ModRM byte, and a register block, return a
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* pointer into the block that addresses the relevant register.
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@ -1023,6 +1031,10 @@ done_prefixes:
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case 0xd2 ... 0xd3: /* Grp2 */
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src.val = _regs[VCPU_REGS_RCX];
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goto grp2;
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case 0xe9: /* jmp rel */
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JMP_REL(src.val);
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no_wb = 1; /* Disable writeback. */
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break;
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case 0xf6 ... 0xf7: /* Grp3 */
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switch (modrm_reg) {
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case 0 ... 1: /* test */
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