diff options
Diffstat (limited to 'drivers/kvm/x86_emulate.c')
| -rw-r--r-- | drivers/kvm/x86_emulate.c | 76 |
1 files changed, 37 insertions, 39 deletions
diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c index e294d840957..75fd23bade9 100644 --- a/drivers/kvm/x86_emulate.c +++ b/drivers/kvm/x86_emulate.c @@ -23,7 +23,7 @@ #include <stdio.h> #include <stdint.h> #include <public/xen.h> -#define DPRINTF(_f, _a ...) printf( _f , ## _a ) +#define DPRINTF(_f, _a ...) printf(_f , ## _a) #else #include "kvm.h" #define DPRINTF(x...) do {} while (0) @@ -285,21 +285,21 @@ static u16 twobyte_table[256] = { switch ((_dst).bytes) { \ case 2: \ __asm__ __volatile__ ( \ - _PRE_EFLAGS("0","4","2") \ + _PRE_EFLAGS("0", "4", "2") \ _op"w %"_wx"3,%1; " \ - _POST_EFLAGS("0","4","2") \ + _POST_EFLAGS("0", "4", "2") \ : "=m" (_eflags), "=m" ((_dst).val), \ "=&r" (_tmp) \ - : _wy ((_src).val), "i" (EFLAGS_MASK) ); \ + : _wy ((_src).val), "i" (EFLAGS_MASK)); \ break; \ case 4: \ __asm__ __volatile__ ( \ - _PRE_EFLAGS("0","4","2") \ + _PRE_EFLAGS("0", "4", "2") \ _op"l %"_lx"3,%1; " \ - _POST_EFLAGS("0","4","2") \ + _POST_EFLAGS("0", "4", "2") \ : "=m" (_eflags), "=m" ((_dst).val), \ "=&r" (_tmp) \ - : _ly ((_src).val), "i" (EFLAGS_MASK) ); \ + : _ly ((_src).val), "i" (EFLAGS_MASK)); \ break; \ case 8: \ __emulate_2op_8byte(_op, _src, _dst, \ @@ -311,16 +311,15 @@ static u16 twobyte_table[256] = { #define __emulate_2op(_op,_src,_dst,_eflags,_bx,_by,_wx,_wy,_lx,_ly,_qx,_qy) \ do { \ unsigned long _tmp; \ - switch ( (_dst).bytes ) \ - { \ + switch ((_dst).bytes) { \ case 1: \ __asm__ __volatile__ ( \ - _PRE_EFLAGS("0","4","2") \ + _PRE_EFLAGS("0", "4", "2") \ _op"b %"_bx"3,%1; " \ - _POST_EFLAGS("0","4","2") \ + _POST_EFLAGS("0", "4", "2") \ : "=m" (_eflags), "=m" ((_dst).val), \ "=&r" (_tmp) \ - : _by ((_src).val), "i" (EFLAGS_MASK) ); \ + : _by ((_src).val), "i" (EFLAGS_MASK)); \ break; \ default: \ __emulate_2op_nobyte(_op, _src, _dst, _eflags, \ @@ -349,34 +348,33 @@ static u16 twobyte_table[256] = { do { \ unsigned long _tmp; \ \ - switch ( (_dst).bytes ) \ - { \ + switch ((_dst).bytes) { \ case 1: \ __asm__ __volatile__ ( \ - _PRE_EFLAGS("0","3","2") \ + _PRE_EFLAGS("0", "3", "2") \ _op"b %1; " \ - _POST_EFLAGS("0","3","2") \ + _POST_EFLAGS("0", "3", "2") \ : "=m" (_eflags), "=m" ((_dst).val), \ "=&r" (_tmp) \ - : "i" (EFLAGS_MASK) ); \ + : "i" (EFLAGS_MASK)); \ break; \ case 2: \ __asm__ __volatile__ ( \ - _PRE_EFLAGS("0","3","2") \ + _PRE_EFLAGS("0", "3", "2") \ _op"w %1; " \ - _POST_EFLAGS("0","3","2") \ + _POST_EFLAGS("0", "3", "2") \ : "=m" (_eflags), "=m" ((_dst).val), \ "=&r" (_tmp) \ - : "i" (EFLAGS_MASK) ); \ + : "i" (EFLAGS_MASK)); \ break; \ case 4: \ __asm__ __volatile__ ( \ - _PRE_EFLAGS("0","3","2") \ + _PRE_EFLAGS("0", "3", "2") \ _op"l %1; " \ - _POST_EFLAGS("0","3","2") \ + _POST_EFLAGS("0", "3", "2") \ : "=m" (_eflags), "=m" ((_dst).val), \ "=&r" (_tmp) \ - : "i" (EFLAGS_MASK) ); \ + : "i" (EFLAGS_MASK)); \ break; \ case 8: \ __emulate_1op_8byte(_op, _dst, _eflags); \ @@ -389,21 +387,21 @@ static u16 twobyte_table[256] = { #define __emulate_2op_8byte(_op, _src, _dst, _eflags, _qx, _qy) \ do { \ __asm__ __volatile__ ( \ - _PRE_EFLAGS("0","4","2") \ + _PRE_EFLAGS("0", "4", "2") \ _op"q %"_qx"3,%1; " \ - _POST_EFLAGS("0","4","2") \ + _POST_EFLAGS("0", "4", "2") \ : "=m" (_eflags), "=m" ((_dst).val), "=&r" (_tmp) \ - : _qy ((_src).val), "i" (EFLAGS_MASK) ); \ + : _qy ((_src).val), "i" (EFLAGS_MASK)); \ } while (0) #define __emulate_1op_8byte(_op, _dst, _eflags) \ do { \ __asm__ __volatile__ ( \ - _PRE_EFLAGS("0","3","2") \ + _PRE_EFLAGS("0", "3", "2") \ _op"q %1; " \ - _POST_EFLAGS("0","3","2") \ + _POST_EFLAGS("0", "3", "2") \ : "=m" (_eflags), "=m" ((_dst).val), "=&r" (_tmp) \ - : "i" (EFLAGS_MASK) ); \ + : "i" (EFLAGS_MASK)); \ } while (0) #elif defined(__i386__) @@ -415,8 +413,8 @@ static u16 twobyte_table[256] = { #define insn_fetch(_type, _size, _eip) \ ({ unsigned long _x; \ rc = ops->read_std((unsigned long)(_eip) + ctxt->cs_base, &_x, \ - (_size), ctxt->vcpu); \ - if ( rc != 0 ) \ + (_size), ctxt->vcpu); \ + if (rc != 0) \ goto done; \ (_eip) += (_size); \ (_type)_x; \ @@ -780,7 +778,7 @@ done_prefixes: } if (c->ad_bytes != 8) c->modrm_ea = (u32)c->modrm_ea; - modrm_done: +modrm_done: ; } @@ -828,10 +826,9 @@ done_prefixes: c->src.bytes = (c->d & ByteOp) ? 1 : c->op_bytes; /* Don't fetch the address for invlpg: it could be unmapped. */ - if (c->twobyte && c->b == 0x01 - && c->modrm_reg == 7) + if (c->twobyte && c->b == 0x01 && c->modrm_reg == 7) break; - srcmem_common: + srcmem_common: /* * For instructions with a ModR/M byte, switch to register * access if Mod = 3. @@ -1175,10 +1172,11 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops) if (c->src.type == OP_MEM) { c->src.ptr = (unsigned long *)cr2; c->src.val = 0; - if ((rc = ops->read_emulated((unsigned long)c->src.ptr, - &c->src.val, - c->src.bytes, - ctxt->vcpu)) != 0) + rc = ops->read_emulated((unsigned long)c->src.ptr, + &c->src.val, + c->src.bytes, + ctxt->vcpu); + if (rc != 0) goto done; c->src.orig_val = c->src.val; } |