Revision 18bc7bd523e0fc5be8d76bf84bde733a97a8c375 authored by Andy Lutomirski on 10 August 2016, 09:29:14 UTC, committed by Ingo Molnar on 11 August 2016, 09:15:00 UTC
The initialization process for trampoline_cr4_features and mmu_cr4_features was confusing. The intent is for mmu_cr4_features and *trampoline_cr4_features to stay in sync, but trampoline_cr4_features is NULL until setup_real_mode() runs. The old code synchronized *trampoline_cr4_features *twice*, once in setup_real_mode() and once in setup_arch(). It also initialized mmu_cr4_features in setup_real_mode(), which causes the actual value of mmu_cr4_features to potentially depend on when setup_real_mode() is called. With this patch, mmu_cr4_features is initialized directly in setup_arch(), and *trampoline_cr4_features is synchronized to mmu_cr4_features when the trampoline is set up. After this patch, it should be safe to defer setup_real_mode(). Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> 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: Mario Limonciello <mario_limonciello@dell.com> Cc: Matt Fleming <mfleming@suse.de> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/d48a263f9912389b957dd495a7127b009259ffe0.1470821230.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
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File | Mode | Size |
---|---|---|
internal | ||
ablk_helper.h | -rw-r--r-- | 734 bytes |
aead.h | -rw-r--r-- | 18.8 KB |
aes.h | -rw-r--r-- | 1019 bytes |
akcipher.h | -rw-r--r-- | 11.5 KB |
algapi.h | -rw-r--r-- | 12.8 KB |
authenc.h | -rw-r--r-- | 845 bytes |
b128ops.h | -rw-r--r-- | 2.4 KB |
blowfish.h | -rw-r--r-- | 376 bytes |
cast5.h | -rw-r--r-- | 551 bytes |
cast6.h | -rw-r--r-- | 597 bytes |
cast_common.h | -rw-r--r-- | 193 bytes |
chacha20.h | -rw-r--r-- | 642 bytes |
cryptd.h | -rw-r--r-- | 2.1 KB |
crypto_wq.h | -rw-r--r-- | 122 bytes |
ctr.h | -rw-r--r-- | 524 bytes |
des.h | -rw-r--r-- | 503 bytes |
dh.h | -rw-r--r-- | 823 bytes |
drbg.h | -rw-r--r-- | 8.9 KB |
ecdh.h | -rw-r--r-- | 845 bytes |
gf128mul.h | -rw-r--r-- | 8.0 KB |
hash.h | -rw-r--r-- | 30.8 KB |
hash_info.h | -rw-r--r-- | 1.1 KB |
if_alg.h | -rw-r--r-- | 2.5 KB |
kpp.h | -rw-r--r-- | 8.8 KB |
lrw.h | -rw-r--r-- | 1.2 KB |
mcryptd.h | -rw-r--r-- | 2.3 KB |
md5.h | -rw-r--r-- | 458 bytes |
null.h | -rw-r--r-- | 530 bytes |
padlock.h | -rw-r--r-- | 649 bytes |
pcrypt.h | -rw-r--r-- | 1.4 KB |
pkcs7.h | -rw-r--r-- | 1.2 KB |
poly1305.h | -rw-r--r-- | 977 bytes |
public_key.h | -rw-r--r-- | 1.7 KB |
rng.h | -rw-r--r-- | 6.6 KB |
scatterwalk.h | -rw-r--r-- | 3.7 KB |
serpent.h | -rw-r--r-- | 673 bytes |
sha.h | -rw-r--r-- | 2.8 KB |
sha1_base.h | -rw-r--r-- | 2.5 KB |
sha256_base.h | -rw-r--r-- | 3.0 KB |
sha3.h | -rw-r--r-- | 665 bytes |
sha512_base.h | -rw-r--r-- | 3.2 KB |
skcipher.h | -rw-r--r-- | 19.6 KB |
twofish.h | -rw-r--r-- | 716 bytes |
vmac.h | -rw-r--r-- | 2.1 KB |
xts.h | -rw-r--r-- | 1.2 KB |
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