Author: markj
Date: Wed Oct 3 14:20:43 2018
New Revision: 339124
URL: https://svnweb.freebsd.org/changeset/base/339124
Log:
Fix an inverted test in ucode_load_ap().
This caused microcode to be updated only on the BSP if hyperthreading
was disabled, typically resulting in a hang or reset.
Approved by: re (kib)
Sponsored by: The FreeBSD Foundation
Modified:
head/sys/x86/x86/ucode.c
Modified: head/sys/x86/x86/ucode.c
==============================================================================
--- head/sys/x86/x86/ucode.c Wed Oct 3 12:47:54 2018 (r339123)
+++ head/sys/x86/x86/ucode.c Wed Oct 3 14:20:43 2018 (r339124)
@@ -269,7 +269,7 @@ ucode_load_ap(int cpu)
KASSERT(cpu_info[cpu_apic_ids[cpu]].cpu_present,
("cpu %d not present", cpu));
- if (!cpu_info[cpu_apic_ids[cpu]].cpu_hyperthread)
+ if (cpu_info[cpu_apic_ids[cpu]].cpu_hyperthread)
return;
#endif
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