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KVM: selftests: Convert vgic_init away from vm_create_default_with_vcpus()

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Use a combination of vm_create(), vm_create_with_vcpus(), and
vm_vcpu_add() to convert vgic_init from vm_create_default_with_vcpus(),
and away from referncing vCPUs by ID.

Thus continues the march toward total annihilation of "default" helpers.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2022-02-16 11:57:41 -08:00 committed by Paolo Bonzini
parent f3443bed29
commit 45f568084a
1 changed files with 51 additions and 31 deletions
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82
tools/testing/selftests/kvm/aarch64/vgic_init.c
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@ -66,19 +66,21 @@ static void guest_code(void)
}
/* we don't want to assert on run execution, hence that helper */
static int run_vcpu(struct kvm_vm *vm, uint32_t vcpuid)
static int run_vcpu(struct kvm_vcpu *vcpu)
{
ucall_init(vm, NULL);
ucall_init(vcpu->vm, NULL);
return __vcpu_run(vm, vcpuid) ? -errno : 0;
return __vcpu_run(vcpu->vm, vcpu->id) ? -errno : 0;
}
static struct vm_gic vm_gic_create_with_vcpus(uint32_t gic_dev_type, uint32_t nr_vcpus)
static struct vm_gic vm_gic_create_with_vcpus(uint32_t gic_dev_type,
uint32_t nr_vcpus,
struct kvm_vcpu *vcpus[])
{
struct vm_gic v;
v.gic_dev_type = gic_dev_type;
v.vm = vm_create_default_with_vcpus(nr_vcpus, 0, 0, guest_code, NULL);
v.vm = vm_create_with_vcpus(nr_vcpus, guest_code, vcpus);
v.gic_fd = kvm_create_device(v.vm, gic_dev_type);
return v;
@ -322,18 +324,19 @@ static void subtest_v3_redist_regions(struct vm_gic *v)
*/
static void test_vgic_then_vcpus(uint32_t gic_dev_type)
{
struct kvm_vcpu *vcpus[NR_VCPUS];
struct vm_gic v;
int ret, i;
v = vm_gic_create_with_vcpus(gic_dev_type, 1);
v = vm_gic_create_with_vcpus(gic_dev_type, 1, vcpus);
subtest_dist_rdist(&v);
/* Add the rest of the VCPUs */
for (i = 1; i < NR_VCPUS; ++i)
vm_vcpu_add(v.vm, i, guest_code);
vcpus[i] = vm_vcpu_add(v.vm, i, guest_code);
ret = run_vcpu(v.vm, 3);
ret = run_vcpu(vcpus[3]);
TEST_ASSERT(ret == -EINVAL, "dist/rdist overlap detected on 1st vcpu run");
vm_gic_destroy(&v);
@ -342,14 +345,15 @@ static void test_vgic_then_vcpus(uint32_t gic_dev_type)
/* All the VCPUs are created before the VGIC KVM device gets initialized */
static void test_vcpus_then_vgic(uint32_t gic_dev_type)
{
struct kvm_vcpu *vcpus[NR_VCPUS];
struct vm_gic v;
int ret;
v = vm_gic_create_with_vcpus(gic_dev_type, NR_VCPUS);
v = vm_gic_create_with_vcpus(gic_dev_type, NR_VCPUS, vcpus);
subtest_dist_rdist(&v);
ret = run_vcpu(v.vm, 3);
ret = run_vcpu(vcpus[3]);
TEST_ASSERT(ret == -EINVAL, "dist/rdist overlap detected on 1st vcpu run");
vm_gic_destroy(&v);
@ -357,37 +361,38 @@ static void test_vcpus_then_vgic(uint32_t gic_dev_type)
static void test_v3_new_redist_regions(void)
{
struct kvm_vcpu *vcpus[NR_VCPUS];
void *dummy = NULL;
struct vm_gic v;
uint64_t addr;
int ret;
v = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, NR_VCPUS);
v = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, NR_VCPUS, vcpus);
subtest_v3_redist_regions(&v);
kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);
ret = run_vcpu(v.vm, 3);
ret = run_vcpu(vcpus[3]);
TEST_ASSERT(ret == -ENXIO, "running without sufficient number of rdists");
vm_gic_destroy(&v);
/* step2 */
v = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, NR_VCPUS);
v = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, NR_VCPUS, vcpus);
subtest_v3_redist_regions(&v);
addr = REDIST_REGION_ATTR_ADDR(1, 0x280000, 0, 2);
kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
ret = run_vcpu(v.vm, 3);
ret = run_vcpu(vcpus[3]);
TEST_ASSERT(ret == -EBUSY, "running without vgic explicit init");
vm_gic_destroy(&v);
/* step 3 */
v = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, NR_VCPUS);
v = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, NR_VCPUS, vcpus);
subtest_v3_redist_regions(&v);
ret = __kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
@ -402,7 +407,7 @@ static void test_v3_new_redist_regions(void)
kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);
ret = run_vcpu(v.vm, 3);
ret = run_vcpu(vcpus[3]);
TEST_ASSERT(!ret, "vcpu run");
vm_gic_destroy(&v);
@ -414,21 +419,22 @@ static void test_v3_typer_accesses(void)
uint64_t addr;
int ret, i;
v.vm = vm_create_default(0, 0, guest_code);
v.vm = vm_create(DEFAULT_GUEST_PHY_PAGES);
(void)vm_vcpu_add(v.vm, 0, guest_code);
v.gic_fd = kvm_create_device(v.vm, KVM_DEV_TYPE_ARM_VGIC_V3);
vm_vcpu_add(v.vm, 3, guest_code);
(void)vm_vcpu_add(v.vm, 3, guest_code);
v3_redist_reg_get_errno(v.gic_fd, 1, GICR_TYPER, EINVAL,
"attempting to read GICR_TYPER of non created vcpu");
vm_vcpu_add(v.vm, 1, guest_code);
(void)vm_vcpu_add(v.vm, 1, guest_code);
v3_redist_reg_get_errno(v.gic_fd, 1, GICR_TYPER, EBUSY,
"read GICR_TYPER before GIC initialized");
vm_vcpu_add(v.vm, 2, guest_code);
(void)vm_vcpu_add(v.vm, 2, guest_code);
kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);
@ -467,6 +473,21 @@ static void test_v3_typer_accesses(void)
vm_gic_destroy(&v);
}
static struct vm_gic vm_gic_v3_create_with_vcpuids(int nr_vcpus,
uint32_t vcpuids[])
{
struct vm_gic v;
int i;
v.vm = vm_create(DEFAULT_GUEST_PHY_PAGES);
for (i = 0; i < nr_vcpus; i++)
vm_vcpu_add(v.vm, vcpuids[i], guest_code);
v.gic_fd = kvm_create_device(v.vm, KVM_DEV_TYPE_ARM_VGIC_V3);
return v;
}
/**
* Test GICR_TYPER last bit with new redist regions
* rdist regions #1 and #2 are contiguous
@ -483,9 +504,7 @@ static void test_v3_last_bit_redist_regions(void)
struct vm_gic v;
uint64_t addr;
v.vm = vm_create_default_with_vcpus(6, 0, 0, guest_code, vcpuids);
v.gic_fd = kvm_create_device(v.vm, KVM_DEV_TYPE_ARM_VGIC_V3);
v = vm_gic_v3_create_with_vcpuids(ARRAY_SIZE(vcpuids), vcpuids);
kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);
@ -519,9 +538,7 @@ static void test_v3_last_bit_single_rdist(void)
struct vm_gic v;
uint64_t addr;
v.vm = vm_create_default_with_vcpus(6, 0, 0, guest_code, vcpuids);
v.gic_fd = kvm_create_device(v.vm, KVM_DEV_TYPE_ARM_VGIC_V3);
v = vm_gic_v3_create_with_vcpuids(ARRAY_SIZE(vcpuids), vcpuids);
kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);
@ -542,11 +559,12 @@ static void test_v3_last_bit_single_rdist(void)
/* Uses the legacy REDIST region API. */
static void test_v3_redist_ipa_range_check_at_vcpu_run(void)
{
struct kvm_vcpu *vcpus[NR_VCPUS];
struct vm_gic v;
int ret, i;
uint64_t addr;
v = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, 1);
v = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, 1, vcpus);
/* Set space for 3 redists, we have 1 vcpu, so this succeeds. */
addr = max_phys_size - (3 * 2 * 0x10000);
@ -559,13 +577,13 @@ static void test_v3_redist_ipa_range_check_at_vcpu_run(void)
/* Add the rest of the VCPUs */
for (i = 1; i < NR_VCPUS; ++i)
vm_vcpu_add(v.vm, i, guest_code);
vcpus[i] = vm_vcpu_add(v.vm, i, guest_code);
kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);
/* Attempt to run a vcpu without enough redist space. */
ret = run_vcpu(v.vm, 2);
ret = run_vcpu(vcpus[2]);
TEST_ASSERT(ret && errno == EINVAL,
"redist base+size above PA range detected on 1st vcpu run");
@ -574,11 +592,12 @@ static void test_v3_redist_ipa_range_check_at_vcpu_run(void)
static void test_v3_its_region(void)
{
struct kvm_vcpu *vcpus[NR_VCPUS];
struct vm_gic v;
uint64_t addr;
int its_fd, ret;
v = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, NR_VCPUS);
v = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, NR_VCPUS, vcpus);
its_fd = kvm_create_device(v.vm, KVM_DEV_TYPE_ARM_VGIC_ITS);
addr = 0x401000;
@ -618,11 +637,12 @@ static void test_v3_its_region(void)
*/
int test_kvm_device(uint32_t gic_dev_type)
{
struct kvm_vcpu *vcpus[NR_VCPUS];
struct vm_gic v;
uint32_t other;
int ret;
v.vm = vm_create_default_with_vcpus(NR_VCPUS, 0, 0, guest_code, NULL);
v.vm = vm_create_with_vcpus(NR_VCPUS, guest_code, vcpus);
/* try to create a non existing KVM device */
ret = __kvm_test_create_device(v.vm, 0);