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Kernel: Switch to eagerly restoring x86 FPU state on context switch

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Lazy FPU restore is well known to be vulnerable to timing attacks,
and eager restore is a lot simpler anyway, so let's just do it eagerly.
This commit is contained in:
Andreas Kling 2020-01-01 16:49:08 +01:00
parent 9c0836ce97
commit fd740829d1
5 changed files with 15 additions and 39 deletions
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Kernel/Scheduler.h
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@ -12,7 +12,6 @@ struct RegisterDump;
struct SchedulerData;
extern Thread* current;
extern Thread* g_last_fpu_thread;
extern Thread* g_finalizer;
extern Thread* g_colonel;
extern WaitQueue* g_finalizer_wait_queue;