diff options
Diffstat (limited to 'x86_64')
| -rw-r--r-- | x86_64/locore.S | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/x86_64/locore.S b/x86_64/locore.S index 806762bb..8f39a677 100644 --- a/x86_64/locore.S +++ b/x86_64/locore.S @@ -163,17 +163,21 @@ #define POP_SEGMENTS_ISR(reg) #endif +#if NCPUS > 1 +#define SET_KERNEL_SEGMENTS(reg) \ + ud2 /* TODO: use swapgs or similar */ +#else // NCPUS > 1 #ifdef USER32 #define SET_KERNEL_SEGMENTS(reg) \ mov %ss,reg /* switch to kernel segments */ ;\ mov reg,%ds /* (same as kernel stack segment) */ ;\ mov reg,%es ;\ mov reg,%fs ;\ - mov $(PERCPU_DS),reg ;\ mov reg,%gs -#else +#else // USER32 #define SET_KERNEL_SEGMENTS(reg) -#endif +#endif // USER32 +#endif // NCPUS > 1 /* * Fault recovery. |