| /branches/dynload/kernel/arch/ia32/include/barrier.h |
|---|
| 51,11 → 51,22 |
| static inline void cpuid_serialization(void) |
| { |
| #ifndef __PIC__ |
| asm volatile ( |
| "xorl %%eax, %%eax\n" |
| "cpuid\n" |
| ::: "eax", "ebx", "ecx", "edx", "memory" |
| ); |
| #else |
| /* Must not clobber PIC register ebx */ |
| asm volatile ( |
| "movl %%ebx, %%esi\n" |
| "xorl %%eax, %%eax\n" |
| "cpuid\n" |
| "movl %%esi, %%ebx\n" |
| ::: "eax", "ecx", "edx", "esi", "memory" |
| ); |
| #endif |
| } |
| #ifdef CONFIG_FENCES_P4 |