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authorThomas Gleixner <tglx@linutronix.de>2021-10-15 03:16:41 +0200
committerBorislav Petkov <bp@suse.de>2021-10-20 15:27:29 +0200
commit079ec41b22b952cdf3126527d735e373c9125f6d (patch)
tree4b05e6bf06ae8062b7f879db9e0b2d4574f2fca5 /arch/x86/mm
parentx86/fpu: Replace the includes of fpu/internal.h (diff)
downloadlinux-079ec41b22b952cdf3126527d735e373c9125f6d.tar.xz
linux-079ec41b22b952cdf3126527d735e373c9125f6d.zip
x86/fpu: Provide a proper function for ex_handler_fprestore()
To make upcoming changes for support of dynamically enabled features simpler, provide a proper function for the exception handler which removes exposure of FPU internals. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20211015011540.053515012@linutronix.de
Diffstat (limited to 'arch/x86/mm')
-rw-r--r--arch/x86/mm/extable.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c
index 79c2e30d93ae..5cd2a88930a9 100644
--- a/arch/x86/mm/extable.c
+++ b/arch/x86/mm/extable.c
@@ -4,8 +4,7 @@
#include <linux/sched/debug.h>
#include <xen/xen.h>
-#include <asm/fpu/signal.h>
-#include <asm/fpu/xstate.h>
+#include <asm/fpu/api.h>
#include <asm/sev.h>
#include <asm/traps.h>
#include <asm/kdebug.h>
@@ -48,7 +47,7 @@ static bool ex_handler_fprestore(const struct exception_table_entry *fixup,
WARN_ONCE(1, "Bad FPU state detected at %pB, reinitializing FPU registers.",
(void *)instruction_pointer(regs));
- restore_fpregs_from_fpstate(&init_fpstate, xfeatures_mask_fpstate());
+ fpu_reset_from_exception_fixup();
return true;
}