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From: Peng Hao <penghao122@sina.com.cn>
To: pbonzini@redhat.com, rkrcmar@redhat.com, tglx@linutronix.de,
	mingo@redhat.com, hpa@zytor.com, joro@8bytes.org
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
	x86@kernel.org, Peng Hao <peng.hao2@zte.com.cn>
Subject: [PATCH]  kvm/x86 : avoid shifting signed 32-bit value by 31 bits
Date: Thu,  4 Oct 2018 13:47:18 -0400	[thread overview]
Message-ID: <1538675238-27356-1-git-send-email-penghao122@sina.com.cn> (raw)


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



             reply	other threads:[~2018-10-04 17:47 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-04 17:47 Peng Hao [this message]
2018-10-06  2:11 ` [PATCH] kvm/x86 : avoid shifting signed 32-bit value by 31 bits Wei Yang
     [not found]   ` <201810061131044868733@zte.com.cn>
2018-10-06  7:08     ` Wei Yang
     [not found]       ` <201810080904344038939@zte.com.cn>
2018-10-08  2:25         ` Wei Yang
2018-10-15 17:12           ` Paolo Bonzini
2018-10-15 17:16         ` H. Peter Anvin
2018-10-15 17:23           ` Paolo Bonzini
2018-10-15 17:30             ` H. Peter Anvin

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