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| author |   Andy Lutomirski <luto@kernel.org> | 2016-09-28 16:06:33 -0700 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2016-09-30 13:53:04 +0200 |
| commit | 05fb3c199bb09f5b85de56cc3ede194ac95c5e1f (patch) | |
| tree | a77a4e4668b1f1458cf3afed17eeb3489fc24eb8 /arch/x86/entry/entry_64.S | |
| parent | x86/vdso: Fix building on big endian host (diff) | |
| download | linux-dev-05fb3c199bb09f5b85de56cc3ede194ac95c5e1f.tar.xz linux-dev-05fb3c199bb09f5b85de56cc3ede194ac95c5e1f.zip | |
x86/boot: Initialize FPU and X86_FEATURE_ALWAYS even if we don't have CPUID
Otherwise arch_task_struct_size == 0 and we die. While we're at it,
set X86_FEATURE_ALWAYS, too.
Reported-by: David Saggiorato <david@saggiorato.net>
Tested-by: David Saggiorato <david@saggiorato.net>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Fixes: aaeb5c01c5b ("x86/fpu, sched: Introduce CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT and use it on x86")
Link: http://lkml.kernel.org/r/8de723afbf0811071185039f9088733188b606c9.1475103911.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/entry/entry_64.S')
0 files changed, 0 insertions, 0 deletions