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KVM: x86 emulator: make register_address_increment and JMP_REL static inlines

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Change jmp_rel() to a function as well.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Harvey Harrison 2008-02-19 07:40:41 -08:00 committed by Avi Kivity
parent e4706772ea
commit 7a95727567
1 changed files with 26 additions and 30 deletions
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56
arch/x86/kvm/x86_emulate.c
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@ -501,23 +501,19 @@ register_address(struct decode_cache *c, unsigned long base, unsigned long reg)
return base + address_mask(c, reg);
}
#define register_address_increment(reg, inc) \
do { \
/* signed type ensures sign extension to long */ \
int _inc = (inc); \
if (c->ad_bytes == sizeof(unsigned long)) \
(reg) += _inc; \
else \
(reg) = ((reg) & \
~ad_mask(c)) | \
(((reg) + _inc) & \
ad_mask(c)); \
} while (0)
static inline void
register_address_increment(struct decode_cache *c, unsigned long *reg, int inc)
{
if (c->ad_bytes == sizeof(unsigned long))
*reg += inc;
else
*reg = (*reg & ~ad_mask(c)) | ((*reg + inc) & ad_mask(c));
}
#define JMP_REL(rel) \
do { \
register_address_increment(c->eip, rel); \
} while (0)
static inline void jmp_rel(struct decode_cache *c, int rel)
{
register_address_increment(c, &c->eip, rel);
}
static int do_fetch_insn_byte(struct x86_emulate_ctxt *ctxt,
struct x86_emulate_ops *ops,
@ -1065,7 +1061,7 @@ static inline void emulate_push(struct x86_emulate_ctxt *ctxt)
c->dst.type = OP_MEM;
c->dst.bytes = c->op_bytes;
c->dst.val = c->src.val;
register_address_increment(c->regs[VCPU_REGS_RSP], -c->op_bytes);
register_address_increment(c, &c->regs[VCPU_REGS_RSP], -c->op_bytes);
c->dst.ptr = (void *) register_address(c, ctxt->ss_base,
c->regs[VCPU_REGS_RSP]);
}
@ -1082,7 +1078,7 @@ static inline int emulate_grp1a(struct x86_emulate_ctxt *ctxt,
if (rc != 0)
return rc;
register_address_increment(c->regs[VCPU_REGS_RSP], c->dst.bytes);
register_address_increment(c, &c->regs[VCPU_REGS_RSP], c->dst.bytes);
return 0;
}
@ -1395,7 +1391,7 @@ special_insn:
c->dst.type = OP_MEM;
c->dst.bytes = c->op_bytes;
c->dst.val = c->src.val;
register_address_increment(c->regs[VCPU_REGS_RSP],
register_address_increment(c, &c->regs[VCPU_REGS_RSP],
-c->op_bytes);
c->dst.ptr = (void *) register_address(
c, ctxt->ss_base, c->regs[VCPU_REGS_RSP]);
@ -1407,7 +1403,7 @@ special_insn:
c->op_bytes, ctxt->vcpu)) != 0)
goto done;
register_address_increment(c->regs[VCPU_REGS_RSP],
register_address_increment(c, &c->regs[VCPU_REGS_RSP],
c->op_bytes);
c->dst.type = OP_NONE; /* Disable writeback. */
break;
@ -1459,7 +1455,7 @@ special_insn:
int rel = insn_fetch(s8, 1, c->eip);
if (test_cc(c->b, ctxt->eflags))
JMP_REL(rel);
jmp_rel(c, rel);
break;
}
case 0x80 ... 0x83: /* Grp1 */
@ -1545,10 +1541,10 @@ special_insn:
&c->dst.val,
c->dst.bytes, ctxt->vcpu)) != 0)
goto done;
register_address_increment(c->regs[VCPU_REGS_RSI],
register_address_increment(c, &c->regs[VCPU_REGS_RSI],
(ctxt->eflags & EFLG_DF) ? -c->dst.bytes
: c->dst.bytes);
register_address_increment(c->regs[VCPU_REGS_RDI],
register_address_increment(c, &c->regs[VCPU_REGS_RDI],
(ctxt->eflags & EFLG_DF) ? -c->dst.bytes
: c->dst.bytes);
break;
@ -1580,10 +1576,10 @@ special_insn:
emulate_2op_SrcV("cmp", c->src, c->dst, ctxt->eflags);
register_address_increment(c->regs[VCPU_REGS_RSI],
register_address_increment(c, &c->regs[VCPU_REGS_RSI],
(ctxt->eflags & EFLG_DF) ? -c->src.bytes
: c->src.bytes);
register_address_increment(c->regs[VCPU_REGS_RDI],
register_address_increment(c, &c->regs[VCPU_REGS_RDI],
(ctxt->eflags & EFLG_DF) ? -c->dst.bytes
: c->dst.bytes);
@ -1595,7 +1591,7 @@ special_insn:
ctxt->es_base,
c->regs[VCPU_REGS_RDI]);
c->dst.val = c->regs[VCPU_REGS_RAX];
register_address_increment(c->regs[VCPU_REGS_RDI],
register_address_increment(c, &c->regs[VCPU_REGS_RDI],
(ctxt->eflags & EFLG_DF) ? -c->dst.bytes
: c->dst.bytes);
break;
@ -1611,7 +1607,7 @@ special_insn:
c->dst.bytes,
ctxt->vcpu)) != 0)
goto done;
register_address_increment(c->regs[VCPU_REGS_RSI],
register_address_increment(c, &c->regs[VCPU_REGS_RSI],
(ctxt->eflags & EFLG_DF) ? -c->dst.bytes
: c->dst.bytes);
break;
@ -1650,14 +1646,14 @@ special_insn:
goto cannot_emulate;
}
c->src.val = (unsigned long) c->eip;
JMP_REL(rel);
jmp_rel(c, rel);
c->op_bytes = c->ad_bytes;
emulate_push(ctxt);
break;
}
case 0xe9: /* jmp rel */
case 0xeb: /* jmp rel short */
JMP_REL(c->src.val);
jmp_rel(c, c->src.val);
c->dst.type = OP_NONE; /* Disable writeback. */
break;
case 0xf4: /* hlt */
@ -1857,7 +1853,7 @@ twobyte_insn:
goto cannot_emulate;
}
if (test_cc(c->b, ctxt->eflags))
JMP_REL(rel);
jmp_rel(c, rel);
c->dst.type = OP_NONE;
break;
}