linux-kernel - [PATCH 5.0 128/139] KVM: selftests: make hyperv

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]

Message-Id: <20190523181735.895664692@linuxfoundation.org>
Date:   Thu, 23 May 2019 21:06:56 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Vitaly Kuznetsov <vkuznets@...hat.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.0 128/139] KVM: selftests: make hyperv_cpuid test pass on AMD

[ Upstream commit eba3afde1cea7dbd7881683232f2a85e2ed86bfe ]

Enlightened VMCS is only supported on Intel CPUs but the test shouldn't
fail completely.

Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>
Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c b/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c
index 264425f75806b..9a21e912097c4 100644
--- a/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c
+++ b/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c
@@ -141,7 +141,13 @@ int main(int argc, char *argv[])
 
 	free(hv_cpuid_entries);
 
-	vcpu_ioctl(vm, VCPU_ID, KVM_ENABLE_CAP, &enable_evmcs_cap);
+	rv = _vcpu_ioctl(vm, VCPU_ID, KVM_ENABLE_CAP, &enable_evmcs_cap);
+
+	if (rv) {
+		fprintf(stderr,
+			"Enlightened VMCS is unsupported, skip related test\n");
+		goto vm_free;
+	}
 
 	hv_cpuid_entries = kvm_get_supported_hv_cpuid(vm);
 	if (!hv_cpuid_entries)
@@ -151,6 +157,7 @@ int main(int argc, char *argv[])
 
 	free(hv_cpuid_entries);
 
+vm_free:
 	kvm_vm_free(vm);
 
 	return 0;
-- 
2.20.1