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)
2013-09-17 17:56:53 +00:00 · 2013-09-17 17:56:53 +00:00 · a83c14de5c
commit a83c14de5c
parent 9d999e98ee
1 changed files with 6 additions and 1 deletions
--- a/sys/amd64/vmm/x86.c
+++ b/sys/amd64/vmm/x86.c
@ -163,7 +163,12 @@ x86_emulate_cpuid(struct vm *vm, int vcpu_id,
 			 * 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
 			 */