Vladimir Serbinenko (phcoder@gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/2990
-gerrit
commit 73125e1648e82f9b0cbe3c5e6c40a7aa3a798995 Author: Vladimir Serbinenko phcoder@gmail.com Date: Sat Mar 30 12:04:23 2013 +0100
Don't attempt to use null pointer (happens when no cpu_microcode_blob.bin is available) as microcode update
Change-Id: I6e18fd37256910bf047061e4633a66cf29ad7b69 Signed-off-by: Vladimir Serbinenko phcoder@gmail.com --- src/cpu/intel/microcode/microcode.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/src/cpu/intel/microcode/microcode.c b/src/cpu/intel/microcode/microcode.c index d908c25..327559b 100644 --- a/src/cpu/intel/microcode/microcode.c +++ b/src/cpu/intel/microcode/microcode.c @@ -202,6 +202,9 @@ void intel_update_microcode(const void *microcode_updates) const char *c; msr_t msr;
+ if (!microcode_updates) + return; + /* CPUID sets MSR 0x8B iff a microcode update has been loaded. */ msr.lo = 0; msr.hi = 0;