From 7a95727567f0991751c2db774a110b4f8080de7f Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Tue, 19 Feb 2008 07:40:41 -0800 Subject: [PATCH] KVM: x86 emulator: make register_address_increment and JMP_REL static inlines Change jmp_rel() to a function as well. Signed-off-by: Harvey Harrison Signed-off-by: Avi Kivity --- arch/x86/kvm/x86_emulate.c | 56 ++++++++++++++++++-------------------- 1 file changed, 26 insertions(+), 30 deletions(-) diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c index 008db4dad7b2..cacdcf5f32d7 100644 --- a/arch/x86/kvm/x86_emulate.c +++ b/arch/x86/kvm/x86_emulate.c @@ -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; } -- 2.20.1