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KVM/arm64 fixes for 5.17, take #4

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- Correctly synchronise PMR and co on PSCI CPU_SUSPEND
 
 - Skip tests that depend on GICv3 when the HW isn't available
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Merge tag 'kvmarm-fixes-5.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 5.17, take #4

- Correctly synchronise PMR and co on PSCI CPU_SUSPEND

- Skip tests that depend on GICv3 when the HW isn't available
This commit is contained in:
Paolo Bonzini 2022-02-25 09:49:30 -05:00
commit ece32a75f0
4 changed files with 14 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
arch/arm64/kvm/psci.c
View file

@ -46,8 +46,7 @@ static unsigned long kvm_psci_vcpu_suspend(struct kvm_vcpu *vcpu)
* specification (ARM DEN 0022A). This means all suspend states
* for KVM will preserve the register state.
*/
kvm_vcpu_halt(vcpu);
kvm_clear_request(KVM_REQ_UNHALT, vcpu);
kvm_vcpu_wfi(vcpu);
return PSCI_RET_SUCCESS;
}

7
tools/testing/selftests/kvm/aarch64/arch_timer.c
View file

@ -366,6 +366,7 @@ 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);
@ -382,7 +383,11 @@ static struct kvm_vm *test_vm_create(void)
ucall_init(vm, NULL);
test_init_timer_irq(vm);
vgic_v3_setup(vm, nr_vcpus, 64, GICD_BASE_GPA, GICR_BASE_GPA);
ret = vgic_v3_setup(vm, nr_vcpus, 64, GICD_BASE_GPA, GICR_BASE_GPA);
if (ret < 0) {
print_skip("Failed to create vgic-v3");
exit(KSFT_SKIP);
}
/* Make all the test's cmdline args visible to the guest */
sync_global_to_guest(vm, test_args);

4
tools/testing/selftests/kvm/aarch64/vgic_irq.c
View file

@ -761,6 +761,10 @@ static void test_vgic(uint32_t nr_irqs, bool level_sensitive, bool eoi_split)
gic_fd = vgic_v3_setup(vm, 1, nr_irqs,
GICD_BASE_GPA, GICR_BASE_GPA);
if (gic_fd < 0) {
print_skip("Failed to create vgic-v3, skipping");
exit(KSFT_SKIP);
}
vm_install_exception_handler(vm, VECTOR_IRQ_CURRENT,
guest_irq_handlers[args.eoi_split][args.level_sensitive]);

4
tools/testing/selftests/kvm/lib/aarch64/vgic.c
View file

@ -52,7 +52,9 @@ int vgic_v3_setup(struct kvm_vm *vm, unsigned int nr_vcpus, uint32_t nr_irqs,
nr_vcpus, nr_vcpus_created);
/* Distributor setup */
gic_fd = kvm_create_device(vm, KVM_DEV_TYPE_ARM_VGIC_V3, false);
if (_kvm_create_device(vm, KVM_DEV_TYPE_ARM_VGIC_V3,
false, &gic_fd) != 0)
return -1;
kvm_device_access(gic_fd, KVM_DEV_ARM_VGIC_GRP_NR_IRQS,
0, &nr_irqs, true);