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From: Sean Christopherson <seanjc@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, Sean Christopherson <seanjc@google.com>
Subject: [kvm-unit-tests PATCH 06/12] nSVM: Stop forcing EFER.NX=1 for all tests
Date: Tue, 22 Jun 2021 14:00:41 -0700	[thread overview]
Message-ID: <20210622210047.3691840-7-seanjc@google.com> (raw)
In-Reply-To: <20210622210047.3691840-1-seanjc@google.com>

Don't force EFER.NX=1 for SVM tests now that the one NPT test that needs
EFER.NX=1 does its own housekeeping.

Signed-off-by: Sean Christopherson <seanjc@google.com>
---
 x86/svm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/x86/svm.c b/x86/svm.c
index 6e5872d..0959189 100644
--- a/x86/svm.c
+++ b/x86/svm.c
@@ -295,7 +295,7 @@ static void set_additional_vcpu_msr(void *msr_efer)
 	void *hsave = alloc_page();
 
 	wrmsr(MSR_VM_HSAVE_PA, virt_to_phys(hsave));
-	wrmsr(MSR_EFER, (ulong)msr_efer | EFER_SVME | EFER_NX);
+	wrmsr(MSR_EFER, (ulong)msr_efer | EFER_SVME);
 }
 
 static void setup_svm(void)
@@ -306,7 +306,6 @@ static void setup_svm(void)
 
 	wrmsr(MSR_VM_HSAVE_PA, virt_to_phys(hsave));
 	wrmsr(MSR_EFER, rdmsr(MSR_EFER) | EFER_SVME);
-	wrmsr(MSR_EFER, rdmsr(MSR_EFER) | EFER_NX);
 
 	io_bitmap = (void *) ALIGN((ulong)io_bitmap_area, PAGE_SIZE);
 
-- 
2.32.0.288.g62a8d224e6-goog


  parent reply	other threads:[~2021-06-22 21:01 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-22 21:00 [kvm-unit-tests PATCH 00/12] nSVM: NPT improvements and cleanups Sean Christopherson
2021-06-22 21:00 ` [kvm-unit-tests PATCH 01/12] nSVM: Provide expected and actual exit codes on VMRUN test failure Sean Christopherson
2021-06-22 21:00 ` [kvm-unit-tests PATCH 02/12] nSVM: Replace open coded NX manipulation with appropriate macros Sean Christopherson
2021-06-22 21:00 ` [kvm-unit-tests PATCH 03/12] nSVM: Reset the VMCB before every v1 test Sean Christopherson
2021-06-22 21:00 ` [kvm-unit-tests PATCH 04/12] nSVM: Explicitly save/update/restore EFER.NX for NPT NX test Sean Christopherson
2021-06-22 21:00 ` [kvm-unit-tests PATCH 05/12] nSVM: Remove NPT reserved bits tests (new one on the way) Sean Christopherson
2021-06-24 11:06   ` Paolo Bonzini
2021-06-24 17:43     ` Sean Christopherson
2021-06-24 17:47       ` Paolo Bonzini
2021-06-24 18:16         ` Sean Christopherson
2021-08-12  7:58       ` Maxim Levitsky
2021-06-22 21:00 ` Sean Christopherson [this message]
2021-06-22 21:00 ` [kvm-unit-tests PATCH 07/12] nSVM: Remove a superfluous modification of guest EFER.NX in NPT NX test Sean Christopherson
2021-06-22 21:00 ` [kvm-unit-tests PATCH 08/12] nSVM: Clear guest's " Sean Christopherson
2021-06-22 21:00 ` [kvm-unit-tests PATCH 09/12] lib/vmalloc: Let arch code pass a value to its setup_mmu() helper Sean Christopherson
2021-06-22 21:00 ` [kvm-unit-tests PATCH 10/12] x86: Let tests omit PT_USER_MASK when configuring virtual memory Sean Christopherson
2021-06-22 21:00 ` [kvm-unit-tests PATCH 11/12] x86: Add GBPAGES CPUID macro, clean up CPUID comments Sean Christopherson
2021-06-22 21:00 ` [kvm-unit-tests PATCH 12/12] nSVM: Add test for NPT reserved bit and #NPF error code behavior Sean Christopherson
2021-06-23 11:52 ` [kvm-unit-tests PATCH 00/12] nSVM: NPT improvements and cleanups Paolo Bonzini

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