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| 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/kvm/dirty_log_test.c | |
| parent | kvm: selftests: add pa-48/va-48 VM modes (diff) | |
| download | linux-8cee58161efffcb5ba691c33fe4de3eb75cf46cb.tar.xz linux-8cee58161efffcb5ba691c33fe4de3eb75cf46cb.zip | |
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/kvm/dirty_log_test.c')
| -rw-r--r-- | tools/testing/selftests/kvm/dirty_log_test.c | 31 |
1 files changed, 27 insertions, 4 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) { |