linux-kernel - [PATCH 11/12] KVM: SVM: Add clean-bit for CR2 register

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 3 Dec 2010 11:45:58 +0100
From:	Joerg Roedel <joerg.roedel@....com>
To:	Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com>
CC:	<kvm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Joerg Roedel <joerg.roedel@....com>
Subject: [PATCH 11/12] KVM: SVM: Add clean-bit for CR2 register

This patch implements the clean-bit for the cr2 register in
the vmcb.

Signed-off-by: Joerg Roedel <joerg.roedel@....com>
---
 arch/x86/kvm/svm.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 4c366fe..7643f83 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -196,11 +196,12 @@ enum {
 	VMCB_DR,         /* DR6, DR7 */
 	VMCB_DT,         /* GDT, IDT */
 	VMCB_SEG,        /* CS, DS, SS, ES, CPL */
+	VMCB_CR2,        /* CR2 only */
 	VMCB_DIRTY_MAX,
 };
 
-/* TPR is always written before VMRUN */
-#define VMCB_ALWAYS_DIRTY_MASK	(1U << VMCB_INTR)
+/* TPR and CR2 are always written before VMRUN */
+#define VMCB_ALWAYS_DIRTY_MASK	((1U << VMCB_INTR) | (1U << VMCB_CR2))
 
 static inline void mark_all_dirty(struct vmcb *vmcb)
 {
-- 
1.7.1


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/