[PATCH] kvm/x86 : avoid shifting signed 32-bit value by 31 bits

Peng Hao
2018-10-04T17:47:18Z

From: Peng Hao <peng.hao2@zte.com.cn>

modify AVIC_LOGICAL_ID_ENTRY_VALID_MASK to unsigned

Signed-off-by: Peng Hao <peng.hao2@zte.com.cn>
---
arch/x86/kvm/svm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index d96092b..bf1ded4 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -262,7 +262,7 @@ struct amd_svm_iommu_ir {
};

#define AVIC_LOGICAL_ID_ENTRY_GUEST_PHYSICAL_ID_MASK (0xFF)
-#define AVIC_LOGICAL_ID_ENTRY_VALID_MASK (1 << 31)
+#define AVIC_LOGICAL_ID_ENTRY_VALID_MASK (1UL << 31)

#define AVIC_PHYSICAL_ID_ENTRY_HOST_PHYSICAL_ID_MASK (0xFFULL)
#define AVIC_PHYSICAL_ID_ENTRY_BACKING_PAGE_MASK (0xFFFFFFFFFFULL << 12)
--
1.8.3.1