diff options
author | Andrew Jones <drjones@redhat.com> | 2018-11-06 14:57:12 +0100 |
---|---|---|
committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-12-21 11:28:30 +0100 |
commit | 8cee58161efffcb5ba691c33fe4de3eb75cf46cb (patch) | |
tree | e72dd914d0ba66ab199878a551249f7f1a61df93 /tools/testing/selftests | |
parent | cdbd2428482486bcb2ab86dd7d99e8adec2b7c39 (diff) |
kvm: selftests: aarch64: dirty_log_test: support greater than 40-bit IPAs
When KVM has KVM_CAP_ARM_VM_IPA_SIZE we can test with > 40-bit IPAs by
using the 'type' field of KVM_CREATE_VM.
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Diffstat (limited to 'tools/testing/selftests')
-rw-r--r-- | tools/testing/selftests/kvm/dirty_log_test.c | 31 | ||||
-rw-r--r-- | tools/testing/selftests/kvm/include/kvm_util.h | 2 | ||||
-rw-r--r-- | tools/testing/selftests/kvm/lib/kvm_util.c | 17 | ||||
-rw-r--r-- | tools/testing/selftests/kvm/lib/kvm_util_internal.h | 1 |
4 files changed, 42 insertions, 9 deletions
diff --git a/tools/testing/selftests/kvm/dirty_log_test.c b/tools/testing/selftests/kvm/dirty_log_test.c index c2897c862141..4715cfba20dc 100644 --- a/tools/testing/selftests/kvm/dirty_log_test.c +++ b/tools/testing/selftests/kvm/dirty_log_test.c @@ -216,12 +216,14 @@ static void vm_dirty_log_verify(unsigned long *bmap) } static struct kvm_vm *create_vm(enum vm_guest_mode mode, uint32_t vcpuid, - uint64_t extra_mem_pages, void *guest_code) + uint64_t extra_mem_pages, void *guest_code, + unsigned long type) { struct kvm_vm *vm; uint64_t extra_pg_pages = extra_mem_pages / 512 * 2; - vm = vm_create(mode, DEFAULT_GUEST_PHY_PAGES + extra_pg_pages, O_RDWR); + vm = _vm_create(mode, DEFAULT_GUEST_PHY_PAGES + extra_pg_pages, + O_RDWR, type); kvm_vm_elf_load(vm, program_invocation_name, 0, 0); #ifdef __x86_64__ vm_create_irqchip(vm); @@ -238,6 +240,7 @@ static void run_test(enum vm_guest_mode mode, unsigned long iterations, struct kvm_vm *vm; uint64_t max_gfn; unsigned long *bmap; + unsigned long type = 0; switch (mode) { case VM_MODE_P52V48_4K: @@ -248,6 +251,14 @@ static void run_test(enum vm_guest_mode mode, unsigned long iterations, guest_pa_bits = 52; guest_page_shift = 16; break; + case VM_MODE_P48V48_4K: + guest_pa_bits = 48; + guest_page_shift = 12; + break; + case VM_MODE_P48V48_64K: + guest_pa_bits = 48; + guest_page_shift = 16; + break; case VM_MODE_P40V48_4K: guest_pa_bits = 40; guest_page_shift = 12; @@ -271,6 +282,10 @@ static void run_test(enum vm_guest_mode mode, unsigned long iterations, */ guest_pa_bits = 39; #endif +#ifdef __aarch64__ + if (guest_pa_bits != 40) + type = KVM_VM_TYPE_ARM_IPA_SIZE(guest_pa_bits); +#endif max_gfn = (1ul << (guest_pa_bits - guest_page_shift)) - 1; guest_page_size = (1ul << guest_page_shift); /* 1G of guest page sized pages */ @@ -291,7 +306,7 @@ static void run_test(enum vm_guest_mode mode, unsigned long iterations, bmap = bitmap_alloc(host_num_pages); host_bmap_track = bitmap_alloc(host_num_pages); - vm = create_vm(mode, VCPU_ID, guest_num_pages, guest_code); + vm = create_vm(mode, VCPU_ID, guest_num_pages, guest_code, type); #ifdef USE_CLEAR_DIRTY_LOG struct kvm_enable_cap cap = {}; @@ -408,7 +423,7 @@ int main(int argc, char *argv[]) unsigned long interval = TEST_HOST_LOOP_INTERVAL; bool mode_selected = false; uint64_t phys_offset = 0; - unsigned int mode; + unsigned int mode, host_ipa_limit; int opt, i; #ifdef USE_CLEAR_DIRTY_LOG @@ -424,6 +439,14 @@ int main(int argc, char *argv[]) #ifdef __aarch64__ vm_guest_mode_params_init(VM_MODE_P40V48_4K, true, true); vm_guest_mode_params_init(VM_MODE_P40V48_64K, true, true); + + host_ipa_limit = kvm_check_cap(KVM_CAP_ARM_VM_IPA_SIZE); + if (host_ipa_limit >= 52) + vm_guest_mode_params_init(VM_MODE_P52V48_64K, true, true); + if (host_ipa_limit >= 48) { + vm_guest_mode_params_init(VM_MODE_P48V48_4K, true, true); + vm_guest_mode_params_init(VM_MODE_P48V48_64K, true, true); + } #endif while ((opt = getopt(argc, argv, "hi:I:p:m:")) != -1) { diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h index 0dee17defa25..a84785b02557 100644 --- a/tools/testing/selftests/kvm/include/kvm_util.h +++ b/tools/testing/selftests/kvm/include/kvm_util.h @@ -56,6 +56,8 @@ int kvm_check_cap(long cap); int vm_enable_cap(struct kvm_vm *vm, struct kvm_enable_cap *cap); struct kvm_vm *vm_create(enum vm_guest_mode mode, uint64_t phy_pages, int perm); +struct kvm_vm *_vm_create(enum vm_guest_mode mode, uint64_t phy_pages, + int perm, unsigned long type); void kvm_vm_free(struct kvm_vm *vmp); void kvm_vm_restart(struct kvm_vm *vmp, int perm); void kvm_vm_release(struct kvm_vm *vmp); diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c index ffefe0f5f701..23022e9d32eb 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util.c +++ b/tools/testing/selftests/kvm/lib/kvm_util.c @@ -85,13 +85,13 @@ int vm_enable_cap(struct kvm_vm *vm, struct kvm_enable_cap *cap) return ret; } -static void vm_open(struct kvm_vm *vm, int perm) +static void vm_open(struct kvm_vm *vm, int perm, unsigned long type) { vm->kvm_fd = open(KVM_DEV_PATH, perm); if (vm->kvm_fd < 0) exit(KSFT_SKIP); - vm->fd = ioctl(vm->kvm_fd, KVM_CREATE_VM, NULL); + vm->fd = ioctl(vm->kvm_fd, KVM_CREATE_VM, type); TEST_ASSERT(vm->fd >= 0, "KVM_CREATE_VM ioctl failed, " "rc: %i errno: %i", vm->fd, errno); } @@ -126,7 +126,8 @@ _Static_assert(sizeof(vm_guest_mode_string)/sizeof(char *) == NUM_VM_MODES, * descriptor to control the created VM is created with the permissions * given by perm (e.g. O_RDWR). */ -struct kvm_vm *vm_create(enum vm_guest_mode mode, uint64_t phy_pages, int perm) +struct kvm_vm *_vm_create(enum vm_guest_mode mode, uint64_t phy_pages, + int perm, unsigned long type) { struct kvm_vm *vm; int kvm_fd; @@ -135,7 +136,8 @@ struct kvm_vm *vm_create(enum vm_guest_mode mode, uint64_t phy_pages, int perm) TEST_ASSERT(vm != NULL, "Insufficient Memory"); vm->mode = mode; - vm_open(vm, perm); + vm->type = type; + vm_open(vm, perm, type); /* Setup mode specific traits. */ switch (vm->mode) { @@ -205,6 +207,11 @@ struct kvm_vm *vm_create(enum vm_guest_mode mode, uint64_t phy_pages, int perm) return vm; } +struct kvm_vm *vm_create(enum vm_guest_mode mode, uint64_t phy_pages, int perm) +{ + return _vm_create(mode, phy_pages, perm, 0); +} + /* * VM Restart * @@ -222,7 +229,7 @@ void kvm_vm_restart(struct kvm_vm *vmp, int perm) { struct userspace_mem_region *region; - vm_open(vmp, perm); + vm_open(vmp, perm, vmp->type); if (vmp->has_irqchip) vm_create_irqchip(vmp); diff --git a/tools/testing/selftests/kvm/lib/kvm_util_internal.h b/tools/testing/selftests/kvm/lib/kvm_util_internal.h index 52701db0f253..4595e42c6e29 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util_internal.h +++ b/tools/testing/selftests/kvm/lib/kvm_util_internal.h @@ -44,6 +44,7 @@ struct vcpu { struct kvm_vm { int mode; + unsigned long type; int kvm_fd; int fd; unsigned int pgtable_levels; |