@@ -862,13 +862,10 @@ do {
#define put_fpu(_fic) \
do { \
_put_fpu(); \
- if( (_fic)->exn_raised == EXC_XM && ops->read_cr ) \
- { \
- unsigned long cr4; \
- if ( (ops->read_cr(4, &cr4, ctxt) == X86EMUL_OKAY) && \
- !(cr4 & CR4_OSXMMEXCPT) ) \
- (_fic)->exn_raised = EXC_UD; \
- } \
+ if ( (_fic)->exn_raised == EXC_XM && ops->read_cr && \
+ ops->read_cr(4, &cr4, ctxt) == X86EMUL_OKAY && \
+ !(cr4 & CR4_OSXMMEXCPT) ) \
+ (_fic)->exn_raised = EXC_UD; \
generate_exception_if((_fic)->exn_raised >= 0, \
(_fic)->exn_raised); \
} while (0)
@@ -1183,7 +1180,7 @@ _mode_iopl(
_iopl; \
})
#define mode_vif() ({ \
- unsigned long cr4 = 0; \
+ cr4 = 0; \
if ( ops->read_cr && get_cpl(ctxt, ops) == 3 ) \
{ \
rc = ops->read_cr(4, &cr4, ctxt); \
@@ -2783,6 +2780,7 @@ x86_emulate(
{
enum x86_segment seg;
struct segment_register cs, sreg;
+ unsigned long cr4;
case 0x00 ... 0x05: add: /* add */
emulate_2op_SrcV("add", src, dst, _regs._eflags);
@@ -3281,8 +3279,7 @@ x86_emulate(
if ( (_regs._eflags & EFLG_VM) &&
MASK_EXTR(_regs._eflags, EFLG_IOPL) != 3 )
{
- unsigned long cr4 = 0;
-
+ cr4 = 0;
if ( op_bytes == 2 && ops->read_cr )
{
rc = ops->read_cr(4, &cr4, ctxt);
@@ -3300,8 +3297,8 @@ x86_emulate(
case 0x9d: /* popf */ {
uint32_t mask = EFLG_VIP | EFLG_VIF | EFLG_VM;
- unsigned long cr4 = 0;
+ cr4 = 0;
if ( !mode_ring0() )
{
if ( _regs._eflags & EFLG_VM )
@@ -4586,9 +4583,6 @@ x86_emulate(
#ifdef __XEN__
case 0xd1: /* xsetbv */
- {
- unsigned long cr4;
-
generate_exception_if(vex.pfx, EXC_UD);
if ( !ops->read_cr || ops->read_cr(4, &cr4, ctxt) != X86EMUL_OKAY )
cr4 = 0;
@@ -4598,7 +4592,6 @@ x86_emulate(
_regs._eax | (_regs.rdx << 32)),
EXC_GP, 0);
goto no_writeback;
- }
#endif
case 0xd4: /* vmfunc */
@@ -5126,8 +5119,8 @@ x86_emulate(
break;
case X86EMUL_OPC(0x0f, 0x31): rdtsc: /* rdtsc */ {
- unsigned long cr4;
uint64_t val;
+
if ( !mode_ring0() )
{
fail_if(ops->read_cr == NULL);
@@ -5499,9 +5492,6 @@ x86_emulate(
break;
case X86EMUL_OPC_F3(0x0f, 0xae): /* Grp15 */
- {
- unsigned long cr4;
-
fail_if(modrm_mod != 3);
generate_exception_if((modrm_reg & 4) || !mode_64bit(), EXC_UD);
fail_if(!ops->read_cr);
@@ -5536,7 +5526,6 @@ x86_emulate(
goto done;
}
break;
- }
case X86EMUL_OPC(0x0f, 0xaf): /* imul */
emulate_2op_SrcV_srcmem("imul", src, dst, _regs._eflags);