diff options
Diffstat (limited to 'arch/x86/kvm/emulate.c')
| -rw-r--r-- | arch/x86/kvm/emulate.c | 35 |
1 files changed, 24 insertions, 11 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 1505587d06e9..0f6294376fbd 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -309,23 +309,29 @@ static void invalidate_registers(struct x86_emulate_ctxt *ctxt) static int fastop(struct x86_emulate_ctxt *ctxt, void (*fop)(struct fastop *)); -#define FOP_ALIGN ".align " __stringify(FASTOP_SIZE) " \n\t" +#define FOP_FUNC(name) \ + ".align " __stringify(FASTOP_SIZE) " \n\t" \ + ".type " name ", @function \n\t" \ + name ":\n\t" + #define FOP_RET "ret \n\t" #define FOP_START(op) \ extern void em_##op(struct fastop *fake); \ asm(".pushsection .text, \"ax\" \n\t" \ ".global em_" #op " \n\t" \ - FOP_ALIGN \ - "em_" #op ": \n\t" + FOP_FUNC("em_" #op) #define FOP_END \ ".popsection") -#define FOPNOP() FOP_ALIGN FOP_RET +#define FOPNOP() \ + FOP_FUNC(__stringify(__UNIQUE_ID(nop))) \ + FOP_RET #define FOP1E(op, dst) \ - FOP_ALIGN "10: " #op " %" #dst " \n\t" FOP_RET + FOP_FUNC(#op "_" #dst) \ + "10: " #op " %" #dst " \n\t" FOP_RET #define FOP1EEX(op, dst) \ FOP1E(op, dst) _ASM_EXTABLE(10b, kvm_fastop_exception) @@ -357,7 +363,8 @@ static int fastop(struct x86_emulate_ctxt *ctxt, void (*fop)(struct fastop *)); FOP_END #define FOP2E(op, dst, src) \ - FOP_ALIGN #op " %" #src ", %" #dst " \n\t" FOP_RET + FOP_FUNC(#op "_" #dst "_" #src) \ + #op " %" #src ", %" #dst " \n\t" FOP_RET #define FASTOP2(op) \ FOP_START(op) \ @@ -395,7 +402,8 @@ static int fastop(struct x86_emulate_ctxt *ctxt, void (*fop)(struct fastop *)); FOP_END #define FOP3E(op, dst, src, src2) \ - FOP_ALIGN #op " %" #src2 ", %" #src ", %" #dst " \n\t" FOP_RET + FOP_FUNC(#op "_" #dst "_" #src "_" #src2) \ + #op " %" #src2 ", %" #src ", %" #dst " \n\t" FOP_RET /* 3-operand, word-only, src2=cl */ #define FASTOP3WCL(op) \ @@ -407,7 +415,12 @@ static int fastop(struct x86_emulate_ctxt *ctxt, void (*fop)(struct fastop *)); FOP_END /* Special case for SETcc - 1 instruction per cc */ -#define FOP_SETCC(op) ".align 4; " #op " %al; ret \n\t" +#define FOP_SETCC(op) \ + ".align 4 \n\t" \ + ".type " #op ", @function \n\t" \ + #op ": \n\t" \ + #op " %al \n\t" \ + FOP_RET asm(".global kvm_fastop_exception \n" "kvm_fastop_exception: xor %esi, %esi; ret"); @@ -650,10 +663,10 @@ static __always_inline int __linearize(struct x86_emulate_ctxt *ctxt, u16 sel; la = seg_base(ctxt, addr.seg) + addr.ea; - *linear = la; *max_size = 0; switch (mode) { case X86EMUL_MODE_PROT64: + *linear = la; if (is_noncanonical_address(la)) goto bad; @@ -662,6 +675,7 @@ static __always_inline int __linearize(struct x86_emulate_ctxt *ctxt, goto bad; break; default: + *linear = la = (u32)la; usable = ctxt->ops->get_segment(ctxt, &sel, &desc, NULL, addr.seg); if (!usable) @@ -689,7 +703,6 @@ static __always_inline int __linearize(struct x86_emulate_ctxt *ctxt, if (size > *max_size) goto bad; } - la &= (u32)-1; break; } if (insn_aligned(ctxt, size) && ((la & (size - 1)) != 0)) @@ -956,7 +969,7 @@ static int em_bsr_c(struct x86_emulate_ctxt *ctxt) return fastop(ctxt, em_bsr); } -static u8 test_cc(unsigned int condition, unsigned long flags) +static __always_inline u8 test_cc(unsigned int condition, unsigned long flags) { u8 rc; void (*fop)(void) = (void *)em_setcc + 4 * (condition & 0xf); |