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[2003:f6:af13:1a00:27bd:20bf:c18c:447d]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3c70f237fefsm12155436f8f.30.2025.08.25.08.52.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Aug 2025 08:52:08 -0700 (PDT) From: Sebastian Ott To: Paolo Bonzini , Shuah Khan , Sean Christopherson , Marc Zyngier , Oliver Upton Cc: kvm@vger.kernel.org, kvmarm@lists.linux.dev, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Sebastian Ott Subject: [PATCH] KVM: selftests: fix irqfd_test on arm64 Date: Mon, 25 Aug 2025 17:52:03 +0200 Message-ID: <20250825155203.71989-1-sebott@redhat.com> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" irqfd_test on arm triggers the following assertion: =3D=3D=3D=3D Test Assertion Failure =3D=3D=3D=3D include/kvm_util.h:527: !ret pid=3D3643 tid=3D3643 errno=3D11 - Resource temporarily unavailable 1 0x00000000004026d7: kvm_irqfd at kvm_util.h:527 2 0x0000000000402083: main at irqfd_test.c:100 3 0x0000ffffa5aab587: ?? ??:0 4 0x0000ffffa5aab65f: ?? ??:0 5 0x000000000040236f: _start at ??:? KVM_IRQFD failed, rc: -1 errno: 11 (Resource temporarily unavailable) Fix this by setting up a vgic for the vm. Signed-off-by: Sebastian Ott Acked-by: Sean Christopherson Reported-by: Naresh Kamboju Reported-by: Sebastian Ott --- tools/testing/selftests/kvm/irqfd_test.c | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/kvm/irqfd_test.c b/tools/testing/selft= ests/kvm/irqfd_test.c index 7c301b4c7005..f7b8766e9d42 100644 --- a/tools/testing/selftests/kvm/irqfd_test.c +++ b/tools/testing/selftests/kvm/irqfd_test.c @@ -8,7 +8,11 @@ #include #include =20 +#include "processor.h" #include "kvm_util.h" +#ifdef __aarch64__ +#include "vgic.h" +#endif =20 static struct kvm_vm *vm1; static struct kvm_vm *vm2; @@ -86,14 +90,30 @@ static void juggle_eventfd_primary(struct kvm_vm *vm, i= nt eventfd) kvm_irqfd(vm, GSI_BASE_PRIMARY + 1, eventfd, KVM_IRQFD_FLAG_DEASSIGN); } =20 +static struct kvm_vm *test_vm_create(void) +{ +#ifdef __aarch64__ + struct kvm_vm *vm; + struct kvm_vcpu *vcpu; + int gic_fd; + + vm =3D vm_create_with_one_vcpu(&vcpu, NULL); + gic_fd =3D vgic_v3_setup(vm, 1, 64); + __TEST_REQUIRE(gic_fd >=3D 0, "Failed to create vgic-v3"); + + return vm; +#endif + return vm_create(1); +} + int main(int argc, char *argv[]) { pthread_t racing_thread; int r, i; =20 /* Create "full" VMs, as KVM_IRQFD requires an in-kernel IRQ chip. */ - vm1 =3D vm_create(1); - vm2 =3D vm_create(1); + vm1 =3D test_vm_create(); + vm2 =3D test_vm_create(); =20 WRITE_ONCE(__eventfd, kvm_new_eventfd()); =20 --=20 2.51.0