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>

diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 33019ddb56b452ce736f4b70fcb5d4efe8d0ae9d..057173db6adcc099e508a5d6db9a98bdc865c607 100644 (file)
--- 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)