Kernel KVM virtualization development
 help / color / mirror / Atom feed
From: Sean Christopherson <seanjc@google.com>
To: 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>,
	Marc Zyngier <maz@kernel.org>,
	 Oliver Upton <oliver.upton@linux.dev>,
	Sean Christopherson <seanjc@google.com>
Cc: kvm@vger.kernel.org, linux-kernel@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>,
	 Juergen Gross <jgross@suse.com>,
	Stefano Stabellini <sstabellini@kernel.org>,
	 Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Subject: [PATCH v2 10/12] KVM: selftests: Assert that eventfd() succeeds in Xen shinfo test
Date: Mon, 19 May 2025 11:55:12 -0700	[thread overview]
Message-ID: <20250519185514.2678456-11-seanjc@google.com> (raw)
In-Reply-To: <20250519185514.2678456-1-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;
-- 
2.49.0.1101.gccaa498523-goog


  parent reply	other threads:[~2025-05-19 18:55 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-19 18:55 [PATCH v2 00/12] KVM: Make irqfd registration globally unique Sean Christopherson
2025-05-19 18:55 ` [PATCH v2 01/12] KVM: Use a local struct to do the initial vfs_poll() on an irqfd Sean Christopherson
2025-05-19 18:55 ` [PATCH v2 02/12] KVM: Acquire SCRU lock outside of irqfds.lock during assignment Sean Christopherson
2025-05-19 18:55 ` [PATCH v2 03/12] KVM: Initialize irqfd waitqueue callback when adding to the queue Sean Christopherson
2025-05-19 18:55 ` [PATCH v2 04/12] KVM: Add irqfd to KVM's list via the vfs_poll() callback Sean Christopherson
2025-05-19 18:55 ` [PATCH v2 05/12] KVM: Add irqfd to eventfd's waitqueue while holding irqfds.lock Sean Christopherson
2025-05-19 18:55 ` [PATCH v2 06/12] sched/wait: Add a waitqueue helper for fully exclusive priority waiters Sean Christopherson
2025-05-20 19:17   ` Peter Zijlstra
2025-05-20 20:57     ` Sean Christopherson
2025-05-19 18:55 ` [PATCH v2 07/12] KVM: Disallow binding multiple irqfds to an eventfd with a priority waiter Sean Christopherson
2025-05-19 18:55 ` [PATCH v2 08/12] sched/wait: Drop WQ_FLAG_EXCLUSIVE from add_wait_queue_priority() Sean Christopherson
2025-05-20 19:18   ` Peter Zijlstra
2025-05-20 22:20     ` Sean Christopherson
2025-05-21 11:42       ` Peter Zijlstra
2025-05-21 14:44         ` Michael Kelley
2025-05-21 15:05           ` Sean Christopherson
2025-05-21 13:22       ` Jürgen Groß
2025-05-19 18:55 ` [PATCH v2 09/12] KVM: Drop sanity check that per-VM list of irqfds is unique Sean Christopherson
2025-05-19 18:55 ` Sean Christopherson [this message]
2025-05-19 18:55 ` [PATCH v2 11/12] KVM: selftests: Add utilities to create eventfds and do KVM_IRQFD Sean Christopherson
2025-05-19 18:55 ` [PATCH v2 12/12] KVM: selftests: Add a KVM_IRQFD test to verify uniqueness requirements Sean Christopherson

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20250519185514.2678456-11-seanjc@google.com \
    --to=seanjc@google.com \
    --cc=dmatlack@google.com \
    --cc=jgross@suse.com \
    --cc=juri.lelli@redhat.com \
    --cc=kprateek.nayak@amd.com \
    --cc=kvm@vger.kernel.org \
    --cc=kvmarm@lists.linux.dev \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=maz@kernel.org \
    --cc=mingo@redhat.com \
    --cc=oleksandr_tyshchenko@epam.com \
    --cc=oliver.upton@linux.dev \
    --cc=pbonzini@redhat.com \
    --cc=peterz@infradead.org \
    --cc=sstabellini@kernel.org \
    --cc=vincent.guittot@linaro.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox