diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2021-10-15 01:09:34 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-10-21 19:38:55 +0200 |
| commit | 2bd264bce238cedbf00bde1f28ad51ba45b9114e (patch) | |
| tree | a987bdb7fdca3a674b55bfbbf06c304d88077cb7 /arch/x86/kernel/fpu/signal.c | |
| parent | cd9ae761744912a96d7fd968b9c0173594e3f6be (diff) | |
x86/fpu: Move xstate size to fpu_*_cfg
Use the new kernel and user space config storage to store and retrieve the
XSTATE buffer sizes. The default and the maximum size are the same for now,
but will change when support for dynamically enabled features is added.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211014230739.296830097@linutronix.de
Diffstat (limited to 'arch/x86/kernel/fpu/signal.c')
| -rw-r--r-- | arch/x86/kernel/fpu/signal.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kernel/fpu/signal.c b/arch/x86/kernel/fpu/signal.c index f9af1747be6e..fab440369663 100644 --- a/arch/x86/kernel/fpu/signal.c +++ b/arch/x86/kernel/fpu/signal.c @@ -503,7 +503,7 @@ fpu__alloc_mathframe(unsigned long sp, int ia32_frame, unsigned long __init fpu__get_fpstate_size(void) { - unsigned long ret = fpu_user_xstate_size; + unsigned long ret = fpu_user_cfg.max_size; if (use_xsave()) ret += FP_XSTATE_MAGIC2_SIZE; @@ -531,12 +531,12 @@ unsigned long __init fpu__get_fpstate_size(void) */ void __init fpu__init_prepare_fx_sw_frame(void) { - int size = fpu_user_xstate_size + FP_XSTATE_MAGIC2_SIZE; + int size = fpu_user_cfg.default_size + FP_XSTATE_MAGIC2_SIZE; fx_sw_reserved.magic1 = FP_XSTATE_MAGIC1; fx_sw_reserved.extended_size = size; fx_sw_reserved.xfeatures = xfeatures_mask_uabi(); - fx_sw_reserved.xstate_size = fpu_user_xstate_size; + fx_sw_reserved.xstate_size = fpu_user_cfg.default_size; if (IS_ENABLED(CONFIG_IA32_EMULATION) || IS_ENABLED(CONFIG_X86_32)) { |