From: Paolo Bonzini <pbonzini@redhat.com>
To: kvm@vger.kernel.org
Cc: babu.moger@amd.com
Subject: [PATCH kvm-unit-tests 2/2] access: treat NX as reserved if EFER.NXE=0
Date: Fri, 13 Aug 2021 07:12:25 -0400 [thread overview]
Message-ID: <20210813111225.3603660-3-pbonzini@redhat.com> (raw)
In-Reply-To: <20210813111225.3603660-1-pbonzini@redhat.com>
Cull more tests if EFER.NXE=0.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
x86/access.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/x86/access.c b/x86/access.c
index 6285c8c..4725bbd 100644
--- a/x86/access.c
+++ b/x86/access.c
@@ -324,6 +324,8 @@ static _Bool ac_test_legal(ac_test_t *at)
*/
reserved = (AC_PDE_BIT51_MASK | AC_PDE_BIT36_MASK | AC_PDE_BIT13_MASK |
AC_PTE_BIT51_MASK | AC_PTE_BIT36_MASK);
+ if (!F(AC_CPU_EFER_NX))
+ reserved |= AC_PDE_NX_MASK | AC_PTE_NX_MASK;
/* Only test one reserved bit at a time. */
reserved &= flags;
--
2.27.0
next prev parent reply other threads:[~2021-08-13 11:12 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-13 11:12 [PATCH kvm-unit-tests 0/2] access: cut more execution time on reserved bit tests Paolo Bonzini
2021-08-13 11:12 ` [PATCH kvm-unit-tests 1/2] access: optimize check for multiple reserved bits Paolo Bonzini
2021-08-13 11:12 ` Paolo Bonzini [this message]
2021-08-13 15:32 ` [PATCH kvm-unit-tests 0/2] access: cut more execution time on reserved bit tests Babu Moger
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