From: Oliver Upton oupton@google.com

[ Upstream commit 21db83846683d3987666505a3ec38f367708199a ]

In order to correctly destroy a VM, all references to the VM must be freed. The arch_timer selftest creates a VGIC for the guest, which itself holds a reference to the VM.

Close the GIC FD when cleaning up a VM.

Signed-off-by: Oliver Upton oupton@google.com Signed-off-by: Marc Zyngier maz@kernel.org Link: https://lore.kernel.org/r/20220406235615.1447180-4-oupton@google.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/kvm/aarch64/arch_timer.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/kvm/aarch64/arch_timer.c b/tools/testing/selftests/kvm/aarch64/arch_timer.c index b08d30bf71c5..3b940a101bc0 100644 --- a/tools/testing/selftests/kvm/aarch64/arch_timer.c +++ b/tools/testing/selftests/kvm/aarch64/arch_timer.c @@ -362,11 +362,12 @@ static void test_init_timer_irq(struct kvm_vm *vm) pr_debug("ptimer_irq: %d; vtimer_irq: %d\n", ptimer_irq, vtimer_irq); }

+static int gic_fd; + static struct kvm_vm *test_vm_create(void) { struct kvm_vm *vm; unsigned int i; - int ret; int nr_vcpus = test_args.nr_vcpus;

vm = vm_create_default_with_vcpus(nr_vcpus, 0, 0, guest_code, NULL); @@ -383,8 +384,8 @@ static struct kvm_vm *test_vm_create(void)

ucall_init(vm, NULL); test_init_timer_irq(vm); - ret = vgic_v3_setup(vm, nr_vcpus, 64, GICD_BASE_GPA, GICR_BASE_GPA); - if (ret < 0) { + gic_fd = vgic_v3_setup(vm, nr_vcpus, 64, GICD_BASE_GPA, GICR_BASE_GPA); + if (gic_fd < 0) { print_skip("Failed to create vgic-v3"); exit(KSFT_SKIP); } @@ -395,6 +396,12 @@ static struct kvm_vm *test_vm_create(void) return vm; }

+static void test_vm_cleanup(struct kvm_vm *vm) +{ + close(gic_fd); + kvm_vm_free(vm); +} + static void test_print_help(char *name) { pr_info("Usage: %s [-h] [-n nr_vcpus] [-i iterations] [-p timer_period_ms]\n", @@ -478,7 +485,7 @@ int main(int argc, char *argv[])

vm = test_vm_create(); test_run(vm); - kvm_vm_free(vm); + test_vm_cleanup(vm);

return 0; }