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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-11-21 15:46:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-11-21 15:46:17 -0800 |
| commit | c6c9161d064d30e78904f3affe5184487493e0fc (patch) | |
| tree | 07387e6ee769c2cf24d13698cbe84f1af679a669 /arch/x86/kernel/cpu/microcode/core.c | |
| parent | 8b2ed21e846c63d8f1bdee0d8df0645721a604a1 (diff) | |
| parent | b5e212a3051b65e426a513901d9c7001681c7215 (diff) | |
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"Misc fixes:
- gold linker build fix
- noxsave command line parsing fix
- bugfix for NX setup
- microcode resume path bug fix
- _TIF_NOHZ versus TIF_NOHZ bugfix as discussed in the mysterious
lockup thread"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, syscall: Fix _TIF_NOHZ handling in syscall_trace_enter_phase1
x86, kaslr: Handle Gold linker for finding bss/brk
x86, mm: Set NX across entire PMD at boot
x86, microcode: Update BSPs microcode on resume
x86: Require exact match for 'noxsave' command line option
Diffstat (limited to 'arch/x86/kernel/cpu/microcode/core.c')
| -rw-r--r-- | arch/x86/kernel/cpu/microcode/core.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c index dd9d6190b08d..2ce9051174e6 100644 --- a/arch/x86/kernel/cpu/microcode/core.c +++ b/arch/x86/kernel/cpu/microcode/core.c @@ -465,6 +465,14 @@ static void mc_bp_resume(void) if (uci->valid && uci->mc) microcode_ops->apply_microcode(cpu); + else if (!uci->mc) + /* + * We might resume and not have applied late microcode but still + * have a newer patch stashed from the early loader. We don't + * have it in uci->mc so we have to load it the same way we're + * applying patches early on the APs. + */ + load_ucode_ap(); } static struct syscore_ops mc_syscore_ops = { |