KVM: x86: paravirt skip pit-through-ioapic boot check

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

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 33019ddb56b4..057173db6adc 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)