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From: Sean Christopherson <seanjc@google.com>
To: Sean Christopherson <seanjc@google.com>,
	Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	 Vitaly Kuznetsov <vkuznets@redhat.com>
Subject: [PATCH 09/11] KVM: selftests: Drop manual XCR0 configuration from state test
Date: Thu,  3 Oct 2024 16:43:35 -0700	[thread overview]
Message-ID: <20241003234337.273364-10-seanjc@google.com> (raw)
In-Reply-To: <20241003234337.273364-1-seanjc@google.com>

Now that CR4.OSXSAVE and XCR0 are setup by default, drop the manual
enabling from the state test, which is fully redundant with the default
behavior.

Signed-off-by: Sean Christopherson <seanjc@google.com>
---
 tools/testing/selftests/kvm/x86_64/state_test.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/tools/testing/selftests/kvm/x86_64/state_test.c b/tools/testing/selftests/kvm/x86_64/state_test.c
index 1c756db329e5..141b7fc0c965 100644
--- a/tools/testing/selftests/kvm/x86_64/state_test.c
+++ b/tools/testing/selftests/kvm/x86_64/state_test.c
@@ -145,11 +145,6 @@ static void __attribute__((__flatten__)) guest_code(void *arg)
 
 		memset(buffer, 0xcc, sizeof(buffer));
 
-		set_cr4(get_cr4() | X86_CR4_OSXSAVE);
-		GUEST_ASSERT(this_cpu_has(X86_FEATURE_OSXSAVE));
-
-		xsetbv(0, xgetbv(0) | supported_xcr0);
-
 		/*
 		 * Modify state for all supported xfeatures to take them out of
 		 * their "init" state, i.e. to make them show up in XSTATE_BV.
-- 
2.47.0.rc0.187.ge670bccf7e-goog


  parent reply	other threads:[~2024-10-03 23:43 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-03 23:43 [PATCH 00/11] KVM: selftests: AVX support + fixes Sean Christopherson
2024-10-03 23:43 ` [PATCH 01/11] KVM: selftests: Fix out-of-bounds reads in CPUID test's array lookups Sean Christopherson
2024-10-04  8:22   ` Vitaly Kuznetsov
2024-10-03 23:43 ` [PATCH 02/11] KVM: selftests: Precisely mask off dynamic fields in CPUID test Sean Christopherson
2024-10-04  9:02   ` Vitaly Kuznetsov
2024-10-03 23:43 ` [PATCH 03/11] KVM: selftests: Mask off OSPKE and OSXSAVE when comparing CPUID entries Sean Christopherson
2024-10-04  9:02   ` Vitaly Kuznetsov
2024-10-03 23:43 ` [PATCH 04/11] KVM: selftests: Rework OSXSAVE CR4=>CPUID test to play nice with AVX insns Sean Christopherson
2024-10-04  9:02   ` Vitaly Kuznetsov
2024-10-03 23:43 ` [PATCH 05/11] KVM: selftests: Configure XCR0 to max supported value by default Sean Christopherson
2024-10-04  9:01   ` Vitaly Kuznetsov
2024-10-04 13:35     ` Sean Christopherson
2024-10-03 23:43 ` [PATCH 06/11] KVM: selftests: Verify XCR0 can be "downgraded" and "upgraded" Sean Christopherson
2024-10-04  9:04   ` Vitaly Kuznetsov
2024-10-03 23:43 ` [PATCH 07/11] KVM: selftests: Drop manual CR4.OSXSAVE enabling from CR4/CPUID sync test Sean Christopherson
2024-10-04  9:05   ` Vitaly Kuznetsov
2024-10-03 23:43 ` [PATCH 08/11] KVM: selftests: Drop manual XCR0 configuration from AMX test Sean Christopherson
2024-10-04  9:09   ` Vitaly Kuznetsov
2024-10-03 23:43 ` Sean Christopherson [this message]
2024-10-04  9:10   ` [PATCH 09/11] KVM: selftests: Drop manual XCR0 configuration from state test Vitaly Kuznetsov
2024-10-03 23:43 ` [PATCH 10/11] KVM: selftests: Drop manual XCR0 configuration from SEV smoke test Sean Christopherson
2024-10-03 23:43 ` [PATCH 11/11] KVM: selftests: Ensure KVM supports AVX for SEV-ES VMSA FPU test Sean Christopherson
2024-10-04  9:14   ` Vitaly Kuznetsov
2024-10-20 11:28 ` [PATCH 00/11] KVM: selftests: AVX support + fixes Paolo Bonzini
2024-10-31 19:51 ` Sean Christopherson
2024-11-01 19:31   ` Sean Christopherson

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