RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 18:37:35 +00:00
Code Issues Activity Actions

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

Browse source 
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
Download patch file Download diff file Expand all files Collapse all files

1
Kernel/Scheduler.h
View file

@ -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;