iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

x86/fpu: Rename initstate copy functions

Browse Source 
Again this not a copy. It's restoring register state from kernel memory.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210623121454.816581630@linutronix.de
This commit is contained in:
Thomas Gleixner 2021-06-23 14:02:02 +02:00 committed by Borislav Petkov
parent 1c61fada30
commit b76411b1b5
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/x86/kernel/fpu/core.c
View File

@ -303,7 +303,7 @@ void fpu__drop(struct fpu *fpu)
* Clear FPU registers by setting them up from the init fpstate.
* Caller must do fpregs_[un]lock() around it.
*/
static inline void copy_init_fpstate_to_fpregs(u64 features_mask)
static inline void restore_fpregs_from_init_fpstate(u64 features_mask)
{
if (use_xsave())
os_xrstor(&init_fpstate.xsave, features_mask);
@ -338,9 +338,9 @@ static void fpu__clear(struct fpu *fpu, bool user_only)
if (!fpregs_state_valid(fpu, smp_processor_id()) &&
xfeatures_mask_supervisor())
os_xrstor(&fpu->state.xsave, xfeatures_mask_supervisor());
copy_init_fpstate_to_fpregs(xfeatures_mask_user());
restore_fpregs_from_init_fpstate(xfeatures_mask_user());
} else {
copy_init_fpstate_to_fpregs(xfeatures_mask_all);
restore_fpregs_from_init_fpstate(xfeatures_mask_all);
}
fpregs_mark_activate();