Author: grehan
Date: Tue Sep 17 17:56:53 2013
New Revision: 255645
URL: http://svnweb.freebsd.org/changeset/base/255645
Log:
Hide TSC-deadline APIC timer support from guests. This mode
isn't yet implemented in bhyve's APIC emulation.
Reviewed by: neel
Approved by: re@ (blanket)
Modified:
head/sys/amd64/vmm/x86.c
Modified: head/sys/amd64/vmm/x86.c
==============================================================================
--- head/sys/amd64/vmm/x86.c Tue Sep 17 17:39:40 2013 (r255644)
+++ head/sys/amd64/vmm/x86.c Tue Sep 17 17:56:53 2013 (r255645)
@@ -163,7 +163,12 @@ x86_emulate_cpuid(struct vm *vm, int vcp
* Hide the performance and debug features.
*/
regs[2] &= ~CPUID2_PDCM;
-
+
+ /*
+ * No TSC deadline support in the APIC yet
+ */
+ regs[2] &= ~CPUID2_TSCDLT;
+
/*
* Hide thermal monitoring
*/
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