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-rw-r--r--arch/x86/kernel/cpu/mtrr/main.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index b6e136f23d3d..be83336fddba 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -43,6 +43,7 @@
#include <asm/uaccess.h>
#include <asm/processor.h>
#include <asm/msr.h>
+#include <asm/kvm_para.h>
#include "mtrr.h"
u32 num_var_ranges = 0;
@@ -649,6 +650,7 @@ static __init int amd_special_default_mtrr(void)
/**
* mtrr_trim_uncached_memory - trim RAM not covered by MTRRs
+ * @end_pfn: ending page frame number
*
* Some buggy BIOSes don't setup the MTRRs properly for systems with certain
* memory configurations. This routine checks that the highest MTRR matches
@@ -688,8 +690,11 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
/* kvm/qemu doesn't have mtrr set right, don't trim them all */
if (!highest_pfn) {
- printk(KERN_WARNING "WARNING: strange, CPU MTRRs all blank?\n");
- WARN_ON(1);
+ if (!kvm_para_available()) {
+ printk(KERN_WARNING
+ "WARNING: strange, CPU MTRRs all blank?\n");
+ WARN_ON(1);
+ }
return 0;
}