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From: Sean Christopherson <seanjc@google.com>
To: "K. Y. Srinivasan" <kys@microsoft.com>,
	Haiyang Zhang <haiyangz@microsoft.com>,
	 Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
	 Juergen Gross <jgross@suse.com>,
	Stefano Stabellini <sstabellini@kernel.org>,
	 Paolo Bonzini <pbonzini@redhat.com>,
	Ingo Molnar <mingo@redhat.com>,
	 Peter Zijlstra <peterz@infradead.org>,
	Juri Lelli <juri.lelli@redhat.com>,
	 Vincent Guittot <vincent.guittot@linaro.org>,
	Shuah Khan <shuah@kernel.org>,  Marc Zyngier <maz@kernel.org>,
	Oliver Upton <oliver.upton@linux.dev>,
	 Sean Christopherson <seanjc@google.com>
Cc: linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org,
	 xen-devel@lists.xenproject.org, kvm@vger.kernel.org,
	 linux-kselftest@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,  kvmarm@lists.linux.dev,
	K Prateek Nayak <kprateek.nayak@amd.com>,
	 David Matlack <dmatlack@google.com>
Subject: [PATCH v3 11/13] KVM: selftests: Assert that eventfd() succeeds in Xen shinfo test
Date: Thu, 22 May 2025 16:52:21 -0700	[thread overview]
Message-ID: <20250522235223.3178519-12-seanjc@google.com> (raw)
In-Reply-To: <20250522235223.3178519-1-seanjc@google.com>

Assert that eventfd() succeeds in the Xen shinfo test instead of skipping
the associated testcase.  While eventfd() is outside the scope of KVM, KVM
unconditionally selects EVENTFD, i.e. the syscall should always succeed.

Signed-off-by: Sean Christopherson <seanjc@google.com>
---
 tools/testing/selftests/kvm/x86/xen_shinfo_test.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/kvm/x86/xen_shinfo_test.c b/tools/testing/selftests/kvm/x86/xen_shinfo_test.c
index 287829f850f7..34d180cf4eed 100644
--- a/tools/testing/selftests/kvm/x86/xen_shinfo_test.c
+++ b/tools/testing/selftests/kvm/x86/xen_shinfo_test.c
@@ -548,14 +548,11 @@ int main(int argc, char *argv[])
 
 	if (do_eventfd_tests) {
 		irq_fd[0] = eventfd(0, 0);
+		TEST_ASSERT(irq_fd[0] >= 0, __KVM_SYSCALL_ERROR("eventfd()", irq_fd[0]));
+
 		irq_fd[1] = eventfd(0, 0);
+		TEST_ASSERT(irq_fd[1] >= 0, __KVM_SYSCALL_ERROR("eventfd()", irq_fd[1]));
 
-		/* Unexpected, but not a KVM failure */
-		if (irq_fd[0] == -1 || irq_fd[1] == -1)
-			do_evtchn_tests = do_eventfd_tests = false;
-	}
-
-	if (do_eventfd_tests) {
 		irq_routes.info.nr = 2;
 
 		irq_routes.entries[0].gsi = 32;
-- 
2.49.0.1151.ga128411c76-goog



  parent reply	other threads:[~2025-05-23  0:15 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-22 23:52 [PATCH v3 00/13] KVM: Make irqfd registration globally unique Sean Christopherson
2025-05-22 23:52 ` [PATCH v3 01/13] KVM: Use a local struct to do the initial vfs_poll() on an irqfd Sean Christopherson
2025-05-22 23:52 ` [PATCH v3 02/13] KVM: Acquire SCRU lock outside of irqfds.lock during assignment Sean Christopherson
2025-05-22 23:52 ` [PATCH v3 03/13] KVM: Initialize irqfd waitqueue callback when adding to the queue Sean Christopherson
2025-05-22 23:52 ` [PATCH v3 04/13] KVM: Add irqfd to KVM's list via the vfs_poll() callback Sean Christopherson
2025-05-22 23:52 ` [PATCH v3 05/13] KVM: Add irqfd to eventfd's waitqueue while holding irqfds.lock Sean Christopherson
2025-05-22 23:52 ` [PATCH v3 06/13] sched/wait: Drop WQ_FLAG_EXCLUSIVE from add_wait_queue_priority() Sean Christopherson
2025-05-22 23:52 ` [PATCH v3 07/13] xen: privcmd: Don't mark eventfd waiter as EXCLUSIVE Sean Christopherson
2025-05-22 23:52 ` [PATCH v3 08/13] sched/wait: Add a waitqueue helper for fully exclusive priority waiters Sean Christopherson
2025-05-30  8:45   ` K Prateek Nayak
2025-05-22 23:52 ` [PATCH v3 09/13] KVM: Disallow binding multiple irqfds to an eventfd with a priority waiter Sean Christopherson
2025-05-22 23:52 ` [PATCH v3 10/13] KVM: Drop sanity check that per-VM list of irqfds is unique Sean Christopherson
2025-05-22 23:52 ` Sean Christopherson [this message]
2025-05-22 23:52 ` [PATCH v3 12/13] KVM: selftests: Add utilities to create eventfds and do KVM_IRQFD Sean Christopherson
2025-05-22 23:52 ` [PATCH v3 13/13] KVM: selftests: Add a KVM_IRQFD test to verify uniqueness requirements Sean Christopherson
2025-05-23  7:23   ` Sairaj Kodilkar
2025-05-23 14:33     ` Sean Christopherson
2025-05-26  3:36       ` Sairaj Kodilkar
2025-05-23 11:14 ` [PATCH v3 00/13] KVM: Make irqfd registration globally unique Peter Zijlstra
2025-05-30  8:49 ` K Prateek Nayak
2025-06-24 19:38 ` Sean Christopherson

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