diff options
| -rw-r--r-- | arch/x86/kernel/fpu/init.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c index 2752b4bae854..567e7e6cdc6b 100644 --- a/arch/x86/kernel/fpu/init.c +++ b/arch/x86/kernel/fpu/init.c @@ -214,6 +214,13 @@ void fpu__init_system(void) fpu__init_cpu(); /* + * But don't leave CR0::TS set yet, as some of the FPU setup methods depend + * on being able to execute FPU instructions that will fault on a set TS, + * such as the FXSAVE in mxcsr_feature_mask_init(). + */ + clts(); + + /* * Set up the legacy init FPU context. (xstate init might overwrite this * with a more modern format, if the CPU supports it.) */ |