[12/43] KVM: x86: paravirt skip pit-through-ioapic boot check

Commit Message

Avi Kivity May 18, 2009, 9:22 a.m. UTC

From: Marcelo Tosatti <[e-mail]>

Skip the test which checks if the PIT is properly routed when
using the IOAPIC, aimed at buggy hardware.

Signed-off-by: Marcelo Tosatti <[e-mail]>
Signed-off-by: Avi Kivity <[e-mail]>
---
 arch/x86/kernel/kvm.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

Patch

diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 33019dd..057173d 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -27,6 +27,7 @@ 
 #include <linux/mm.h>
 #include <linux/highmem.h>
 #include <linux/hardirq.h>
+#include <asm/timer.h>
 
 #define MMU_QUEUE_SIZE 1024
 
@@ -230,6 +231,9 @@  static void paravirt_ops_setup(void)
 		pv_mmu_ops.lazy_mode.enter = kvm_enter_lazy_mmu;
 		pv_mmu_ops.lazy_mode.leave = kvm_leave_lazy_mmu;
 	}
+#ifdef CONFIG_X86_IO_APIC
+	no_timer_check = 1;
+#endif
 }
 
 void __init kvm_guest_init(void)