From: Christoph Egger <Christoph.Egger@amd.com>
To: "xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
Subject: [PATCH] nsvm: fix check if guest enabled nested paging
Date: Thu, 21 Jun 2012 13:52:40 +0200 [thread overview]
Message-ID: <4FE30B08.2010407@amd.com> (raw)
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Fix check if guest enabled nested paging.
Fixes crashes with Windows guests when shadow-on-nested is used.
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
--
---to satisfy European Law for business letters:
Advanced Micro Devices GmbH
Einsteinring 24, 85689 Dornach b. Muenchen
Geschaeftsfuehrer: Alberto Bozzo, Andrew Bowd
Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen
Registergericht Muenchen, HRB Nr. 43632
[-- Attachment #2: xen_nh_npf.diff --]
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diff -r 195185eba60b xen/arch/x86/hvm/svm/nestedsvm.c
--- a/xen/arch/x86/hvm/svm/nestedsvm.c Thu Jun 21 11:26:43 2012 +0200
+++ b/xen/arch/x86/hvm/svm/nestedsvm.c Thu Jun 21 13:30:07 2012 +0200
@@ -935,6 +935,9 @@ nsvm_vmcb_guest_intercepts_exitcode(stru
return 0;
case VMEXIT_NPF:
+ if (nestedhvm_paging_mode_hap(v))
+ break;
+ return 0;
case VMEXIT_INVALID:
/* Always intercepted */
break;
[-- Attachment #3: Type: text/plain, Size: 126 bytes --]
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next reply other threads:[~2012-06-21 11:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-21 11:52 Christoph Egger [this message]
2012-06-25 9:22 ` [PATCH] nsvm: fix check if guest enabled nested paging Tim Deegan
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