diff options
Diffstat (limited to 'xen/arch/x86/cpu/microcode/intel.c')
| -rw-r--r-- | xen/arch/x86/cpu/microcode/intel.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/xen/arch/x86/cpu/microcode/intel.c b/xen/arch/x86/cpu/microcode/intel.c index f6d01490e0..c26fbb8cc7 100644 --- a/xen/arch/x86/cpu/microcode/intel.c +++ b/xen/arch/x86/cpu/microcode/intel.c @@ -232,8 +232,8 @@ static enum microcode_match_result compare_revisions( if ( new_rev > old_rev ) return NEW_UCODE; - if ( opt_ucode_allow_same && new_rev == old_rev ) - return NEW_UCODE; + if ( new_rev == old_rev ) + return SAME_UCODE; /* * Treat pre-production as always applicable - anyone using pre-production @@ -290,8 +290,12 @@ static int apply_microcode(const struct microcode_patch *patch) unsigned int cpu = smp_processor_id(); struct cpu_signature *sig = &this_cpu(cpu_sig); uint32_t rev, old_rev = sig->rev; + enum microcode_match_result result; + + result = microcode_update_match(patch); - if ( microcode_update_match(patch) != NEW_UCODE ) + if ( result != NEW_UCODE && + !(opt_ucode_allow_same && result == SAME_UCODE) ) return -EINVAL; wbinvd(); |