| Message ID | 20240426085556.619731-1-thuth@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | KVM: selftests: Use TAP interface in the set_memory_region test | expand |
On 4/26/24 1:55 PM, Thomas Huth wrote: > Use the kselftest_harness.h interface in this test to get TAP > output, so that it is easier for the user to see what the test > is doing. (Note: We are not using the KVM_ONE_VCPU_TEST_SUITE() > macro here since these tests are creating their VMs with the > vm_create_barebones() function, not with vm_create_with_one_vcpu()) Thank you for the patch. I'm unable to apply the patch on next-20240426. > > Signed-off-by: Thomas Huth <thuth@redhat.com> > --- > .../selftests/kvm/set_memory_region_test.c | 86 +++++++++---------- > 1 file changed, 42 insertions(+), 44 deletions(-) > > diff --git a/tools/testing/selftests/kvm/set_memory_region_test.c b/tools/testing/selftests/kvm/set_memory_region_test.c > index bd57d991e27d..4db6a66a3001 100644 > --- a/tools/testing/selftests/kvm/set_memory_region_test.c > +++ b/tools/testing/selftests/kvm/set_memory_region_test.c > @@ -16,6 +16,7 @@ > #include <test_util.h> > #include <kvm_util.h> > #include <processor.h> > +#include "kselftest_harness.h" > > /* > * s390x needs at least 1MB alignment, and the x86_64 MOVE/DELETE tests need a > @@ -38,6 +39,8 @@ extern const uint64_t final_rip_end; > > static sem_t vcpu_ready; > > +int loops; > + > static inline uint64_t guest_spin_on_val(uint64_t spin_val) > { > uint64_t val; > @@ -219,6 +222,13 @@ static void test_move_memory_region(void) > kvm_vm_free(vm); > } > > +TEST(move_in_use_region) > +{ > + ksft_print_msg("Testing MOVE of in-use region, %d loops\n", loops); > + for (int i = 0; i < loops; i++) > + test_move_memory_region(); > +} > + > static void guest_code_delete_memory_region(void) > { > uint64_t val; > @@ -308,12 +318,19 @@ static void test_delete_memory_region(void) > kvm_vm_free(vm); > } > > -static void test_zero_memory_regions(void) > +TEST(delete_in_use_region) > +{ > + ksft_print_msg("Testing DELETE of in-use region, %d loops\n", loops); > + for (int i = 0; i < loops; i++) > + test_delete_memory_region(); > +} > + > +TEST(zero_memory_regions) > { > struct kvm_vcpu *vcpu; > struct kvm_vm *vm; > > - pr_info("Testing KVM_RUN with zero added memory regions\n"); > + ksft_print_msg("Testing KVM_RUN with zero added memory regions\n"); > > vm = vm_create_barebones(); > vcpu = __vm_vcpu_add(vm, 0); > @@ -326,7 +343,7 @@ static void test_zero_memory_regions(void) > } > #endif /* __x86_64__ */ > > -static void test_invalid_memory_region_flags(void) > +TEST(invalid_memory_region_flags) > { > uint32_t supported_flags = KVM_MEM_LOG_DIRTY_PAGES; > const uint32_t v2_only_flags = KVM_MEM_GUEST_MEMFD; > @@ -389,7 +406,7 @@ static void test_invalid_memory_region_flags(void) > * Test it can be added memory slots up to KVM_CAP_NR_MEMSLOTS, then any > * tentative to add further slots should fail. > */ > -static void test_add_max_memory_regions(void) > +TEST(add_max_memory_regions) > { > int ret; > struct kvm_vm *vm; > @@ -408,13 +425,13 @@ static void test_add_max_memory_regions(void) > max_mem_slots = kvm_check_cap(KVM_CAP_NR_MEMSLOTS); > TEST_ASSERT(max_mem_slots > 0, > "KVM_CAP_NR_MEMSLOTS should be greater than 0"); > - pr_info("Allowed number of memory slots: %i\n", max_mem_slots); > + ksft_print_msg("Allowed number of memory slots: %i\n", max_mem_slots); > > vm = vm_create_barebones(); > > /* Check it can be added memory slots up to the maximum allowed */ > - pr_info("Adding slots 0..%i, each memory region with %dK size\n", > - (max_mem_slots - 1), MEM_REGION_SIZE >> 10); > + ksft_print_msg("Adding slots 0..%i, each memory region with %dK size\n", > + (max_mem_slots - 1), MEM_REGION_SIZE >> 10); > > mem = mmap(NULL, (size_t)max_mem_slots * MEM_REGION_SIZE + alignment, > PROT_READ | PROT_WRITE, > @@ -455,12 +472,21 @@ static void test_invalid_guest_memfd(struct kvm_vm *vm, int memfd, > TEST_ASSERT(r == -1 && errno == EINVAL, "%s", msg); > } > > -static void test_add_private_memory_region(void) > +static bool has_cap_guest_memfd(void) > +{ > + return kvm_has_cap(KVM_CAP_GUEST_MEMFD) && > + (kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SW_PROTECTED_VM)); > +} > + > +TEST(add_private_memory_region) > { > struct kvm_vm *vm, *vm2; > int memfd, i; > > - pr_info("Testing ADD of KVM_MEM_GUEST_MEMFD memory regions\n"); > + if (!has_cap_guest_memfd()) > + SKIP(return, "Missing KVM_MEM_GUEST_MEMFD / KVM_X86_SW_PROTECTED_VM"); > + > + ksft_print_msg("Testing ADD of KVM_MEM_GUEST_MEMFD memory regions\n"); > > vm = vm_create_barebones_protected_vm(); > > @@ -491,13 +517,16 @@ static void test_add_private_memory_region(void) > kvm_vm_free(vm); > } > > -static void test_add_overlapping_private_memory_regions(void) > +TEST(add_overlapping_private_memory_regions) > { > struct kvm_vm *vm; > int memfd; > int r; > > - pr_info("Testing ADD of overlapping KVM_MEM_GUEST_MEMFD memory regions\n"); > + if (!has_cap_guest_memfd()) > + SKIP(return, "Missing KVM_MEM_GUEST_MEMFD / KVM_X86_SW_PROTECTED_VM"); > + > + ksft_print_msg("Testing ADD of overlapping KVM_MEM_GUEST_MEMFD memory regions\n"); > > vm = vm_create_barebones_protected_vm(); > > @@ -536,46 +565,15 @@ static void test_add_overlapping_private_memory_regions(void) > close(memfd); > kvm_vm_free(vm); > } > + > #endif > > int main(int argc, char *argv[]) > { > -#ifdef __x86_64__ > - int i, loops; > - > - /* > - * FIXME: the zero-memslot test fails on aarch64 and s390x because > - * KVM_RUN fails with ENOEXEC or EFAULT. > - */ > - test_zero_memory_regions(); > -#endif > - > - test_invalid_memory_region_flags(); > - > - test_add_max_memory_regions(); > - > -#ifdef __x86_64__ > - if (kvm_has_cap(KVM_CAP_GUEST_MEMFD) && > - (kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SW_PROTECTED_VM))) { > - test_add_private_memory_region(); > - test_add_overlapping_private_memory_regions(); > - } else { > - pr_info("Skipping tests for KVM_MEM_GUEST_MEMFD memory regions\n"); > - } > - > if (argc > 1) > loops = atoi_positive("Number of iterations", argv[1]); > else > loops = 10; > > - pr_info("Testing MOVE of in-use region, %d loops\n", loops); > - for (i = 0; i < loops; i++) > - test_move_memory_region(); > - > - pr_info("Testing DELETE of in-use region, %d loops\n", loops); > - for (i = 0; i < loops; i++) > - test_delete_memory_region(); > -#endif > - > - return 0; > + return test_harness_run(argc, argv); > }
On Fri, Apr 26, 2024 at 10:55:56AM GMT, Thomas Huth wrote: > Use the kselftest_harness.h interface in this test to get TAP > output, so that it is easier for the user to see what the test > is doing. (Note: We are not using the KVM_ONE_VCPU_TEST_SUITE() > macro here since these tests are creating their VMs with the > vm_create_barebones() function, not with vm_create_with_one_vcpu()) > > Signed-off-by: Thomas Huth <thuth@redhat.com> > --- > .../selftests/kvm/set_memory_region_test.c | 86 +++++++++---------- > 1 file changed, 42 insertions(+), 44 deletions(-) > > diff --git a/tools/testing/selftests/kvm/set_memory_region_test.c b/tools/testing/selftests/kvm/set_memory_region_test.c > index bd57d991e27d..4db6a66a3001 100644 > --- a/tools/testing/selftests/kvm/set_memory_region_test.c > +++ b/tools/testing/selftests/kvm/set_memory_region_test.c > @@ -16,6 +16,7 @@ > #include <test_util.h> > #include <kvm_util.h> > #include <processor.h> > +#include "kselftest_harness.h" > > /* > * s390x needs at least 1MB alignment, and the x86_64 MOVE/DELETE tests need a > @@ -38,6 +39,8 @@ extern const uint64_t final_rip_end; > > static sem_t vcpu_ready; > > +int loops; nit: static > + > static inline uint64_t guest_spin_on_val(uint64_t spin_val) > { > uint64_t val; > @@ -219,6 +222,13 @@ static void test_move_memory_region(void) > kvm_vm_free(vm); > } > > +TEST(move_in_use_region) > +{ > + ksft_print_msg("Testing MOVE of in-use region, %d loops\n", loops); > + for (int i = 0; i < loops; i++) > + test_move_memory_region(); > +} > + > static void guest_code_delete_memory_region(void) > { > uint64_t val; > @@ -308,12 +318,19 @@ static void test_delete_memory_region(void) > kvm_vm_free(vm); > } > > -static void test_zero_memory_regions(void) > +TEST(delete_in_use_region) > +{ > + ksft_print_msg("Testing DELETE of in-use region, %d loops\n", loops); > + for (int i = 0; i < loops; i++) > + test_delete_memory_region(); > +} > + > +TEST(zero_memory_regions) > { > struct kvm_vcpu *vcpu; > struct kvm_vm *vm; > > - pr_info("Testing KVM_RUN with zero added memory regions\n"); > + ksft_print_msg("Testing KVM_RUN with zero added memory regions\n"); > > vm = vm_create_barebones(); > vcpu = __vm_vcpu_add(vm, 0); > @@ -326,7 +343,7 @@ static void test_zero_memory_regions(void) > } > #endif /* __x86_64__ */ > > -static void test_invalid_memory_region_flags(void) > +TEST(invalid_memory_region_flags) > { > uint32_t supported_flags = KVM_MEM_LOG_DIRTY_PAGES; > const uint32_t v2_only_flags = KVM_MEM_GUEST_MEMFD; > @@ -389,7 +406,7 @@ static void test_invalid_memory_region_flags(void) > * Test it can be added memory slots up to KVM_CAP_NR_MEMSLOTS, then any > * tentative to add further slots should fail. > */ > -static void test_add_max_memory_regions(void) > +TEST(add_max_memory_regions) > { > int ret; > struct kvm_vm *vm; > @@ -408,13 +425,13 @@ static void test_add_max_memory_regions(void) > max_mem_slots = kvm_check_cap(KVM_CAP_NR_MEMSLOTS); > TEST_ASSERT(max_mem_slots > 0, > "KVM_CAP_NR_MEMSLOTS should be greater than 0"); > - pr_info("Allowed number of memory slots: %i\n", max_mem_slots); > + ksft_print_msg("Allowed number of memory slots: %i\n", max_mem_slots); > > vm = vm_create_barebones(); > > /* Check it can be added memory slots up to the maximum allowed */ > - pr_info("Adding slots 0..%i, each memory region with %dK size\n", > - (max_mem_slots - 1), MEM_REGION_SIZE >> 10); > + ksft_print_msg("Adding slots 0..%i, each memory region with %dK size\n", > + (max_mem_slots - 1), MEM_REGION_SIZE >> 10); > > mem = mmap(NULL, (size_t)max_mem_slots * MEM_REGION_SIZE + alignment, > PROT_READ | PROT_WRITE, > @@ -455,12 +472,21 @@ static void test_invalid_guest_memfd(struct kvm_vm *vm, int memfd, > TEST_ASSERT(r == -1 && errno == EINVAL, "%s", msg); > } > > -static void test_add_private_memory_region(void) > +static bool has_cap_guest_memfd(void) > +{ > + return kvm_has_cap(KVM_CAP_GUEST_MEMFD) && > + (kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SW_PROTECTED_VM)); > +} > + > +TEST(add_private_memory_region) > { > struct kvm_vm *vm, *vm2; > int memfd, i; > > - pr_info("Testing ADD of KVM_MEM_GUEST_MEMFD memory regions\n"); > + if (!has_cap_guest_memfd()) > + SKIP(return, "Missing KVM_MEM_GUEST_MEMFD / KVM_X86_SW_PROTECTED_VM"); > + > + ksft_print_msg("Testing ADD of KVM_MEM_GUEST_MEMFD memory regions\n"); > > vm = vm_create_barebones_protected_vm(); > > @@ -491,13 +517,16 @@ static void test_add_private_memory_region(void) > kvm_vm_free(vm); > } > > -static void test_add_overlapping_private_memory_regions(void) > +TEST(add_overlapping_private_memory_regions) > { > struct kvm_vm *vm; > int memfd; > int r; > > - pr_info("Testing ADD of overlapping KVM_MEM_GUEST_MEMFD memory regions\n"); > + if (!has_cap_guest_memfd()) > + SKIP(return, "Missing KVM_MEM_GUEST_MEMFD / KVM_X86_SW_PROTECTED_VM"); > + > + ksft_print_msg("Testing ADD of overlapping KVM_MEM_GUEST_MEMFD memory regions\n"); > > vm = vm_create_barebones_protected_vm(); > > @@ -536,46 +565,15 @@ static void test_add_overlapping_private_memory_regions(void) > close(memfd); > kvm_vm_free(vm); > } > + > #endif > > int main(int argc, char *argv[]) > { > -#ifdef __x86_64__ > - int i, loops; > - > - /* > - * FIXME: the zero-memslot test fails on aarch64 and s390x because > - * KVM_RUN fails with ENOEXEC or EFAULT. > - */ > - test_zero_memory_regions(); > -#endif > - > - test_invalid_memory_region_flags(); > - > - test_add_max_memory_regions(); > - > -#ifdef __x86_64__ > - if (kvm_has_cap(KVM_CAP_GUEST_MEMFD) && > - (kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SW_PROTECTED_VM))) { > - test_add_private_memory_region(); > - test_add_overlapping_private_memory_regions(); > - } else { > - pr_info("Skipping tests for KVM_MEM_GUEST_MEMFD memory regions\n"); > - } > - > if (argc > 1) > loops = atoi_positive("Number of iterations", argv[1]); > else > loops = 10; > > - pr_info("Testing MOVE of in-use region, %d loops\n", loops); > - for (i = 0; i < loops; i++) > - test_move_memory_region(); > - > - pr_info("Testing DELETE of in-use region, %d loops\n", loops); > - for (i = 0; i < loops; i++) > - test_delete_memory_region(); > -#endif > - > - return 0; > + return test_harness_run(argc, argv); > } > -- > 2.44.0 > Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Thanks, drew
On 26/04/2024 12.07, Muhammad Usama Anjum wrote: > On 4/26/24 1:55 PM, Thomas Huth wrote: >> Use the kselftest_harness.h interface in this test to get TAP >> output, so that it is easier for the user to see what the test >> is doing. (Note: We are not using the KVM_ONE_VCPU_TEST_SUITE() >> macro here since these tests are creating their VMs with the >> vm_create_barebones() function, not with vm_create_with_one_vcpu()) > Thank you for the patch. I'm unable to apply the patch on next-20240426. Ah, I was using the master branch ... it's a context conflict due to https://git.kernel.org/pub/scm/virt/kvm/kvm.git/commit/?id=dfc083a181bac ... I'll send a v2 rebased to the next branch. Thomas
diff --git a/tools/testing/selftests/kvm/set_memory_region_test.c b/tools/testing/selftests/kvm/set_memory_region_test.c index bd57d991e27d..4db6a66a3001 100644 --- a/tools/testing/selftests/kvm/set_memory_region_test.c +++ b/tools/testing/selftests/kvm/set_memory_region_test.c @@ -16,6 +16,7 @@ #include <test_util.h> #include <kvm_util.h> #include <processor.h> +#include "kselftest_harness.h" /* * s390x needs at least 1MB alignment, and the x86_64 MOVE/DELETE tests need a @@ -38,6 +39,8 @@ extern const uint64_t final_rip_end; static sem_t vcpu_ready; +int loops; + static inline uint64_t guest_spin_on_val(uint64_t spin_val) { uint64_t val; @@ -219,6 +222,13 @@ static void test_move_memory_region(void) kvm_vm_free(vm); } +TEST(move_in_use_region) +{ + ksft_print_msg("Testing MOVE of in-use region, %d loops\n", loops); + for (int i = 0; i < loops; i++) + test_move_memory_region(); +} + static void guest_code_delete_memory_region(void) { uint64_t val; @@ -308,12 +318,19 @@ static void test_delete_memory_region(void) kvm_vm_free(vm); } -static void test_zero_memory_regions(void) +TEST(delete_in_use_region) +{ + ksft_print_msg("Testing DELETE of in-use region, %d loops\n", loops); + for (int i = 0; i < loops; i++) + test_delete_memory_region(); +} + +TEST(zero_memory_regions) { struct kvm_vcpu *vcpu; struct kvm_vm *vm; - pr_info("Testing KVM_RUN with zero added memory regions\n"); + ksft_print_msg("Testing KVM_RUN with zero added memory regions\n"); vm = vm_create_barebones(); vcpu = __vm_vcpu_add(vm, 0); @@ -326,7 +343,7 @@ static void test_zero_memory_regions(void) } #endif /* __x86_64__ */ -static void test_invalid_memory_region_flags(void) +TEST(invalid_memory_region_flags) { uint32_t supported_flags = KVM_MEM_LOG_DIRTY_PAGES; const uint32_t v2_only_flags = KVM_MEM_GUEST_MEMFD; @@ -389,7 +406,7 @@ static void test_invalid_memory_region_flags(void) * Test it can be added memory slots up to KVM_CAP_NR_MEMSLOTS, then any * tentative to add further slots should fail. */ -static void test_add_max_memory_regions(void) +TEST(add_max_memory_regions) { int ret; struct kvm_vm *vm; @@ -408,13 +425,13 @@ static void test_add_max_memory_regions(void) max_mem_slots = kvm_check_cap(KVM_CAP_NR_MEMSLOTS); TEST_ASSERT(max_mem_slots > 0, "KVM_CAP_NR_MEMSLOTS should be greater than 0"); - pr_info("Allowed number of memory slots: %i\n", max_mem_slots); + ksft_print_msg("Allowed number of memory slots: %i\n", max_mem_slots); vm = vm_create_barebones(); /* Check it can be added memory slots up to the maximum allowed */ - pr_info("Adding slots 0..%i, each memory region with %dK size\n", - (max_mem_slots - 1), MEM_REGION_SIZE >> 10); + ksft_print_msg("Adding slots 0..%i, each memory region with %dK size\n", + (max_mem_slots - 1), MEM_REGION_SIZE >> 10); mem = mmap(NULL, (size_t)max_mem_slots * MEM_REGION_SIZE + alignment, PROT_READ | PROT_WRITE, @@ -455,12 +472,21 @@ static void test_invalid_guest_memfd(struct kvm_vm *vm, int memfd, TEST_ASSERT(r == -1 && errno == EINVAL, "%s", msg); } -static void test_add_private_memory_region(void) +static bool has_cap_guest_memfd(void) +{ + return kvm_has_cap(KVM_CAP_GUEST_MEMFD) && + (kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SW_PROTECTED_VM)); +} + +TEST(add_private_memory_region) { struct kvm_vm *vm, *vm2; int memfd, i; - pr_info("Testing ADD of KVM_MEM_GUEST_MEMFD memory regions\n"); + if (!has_cap_guest_memfd()) + SKIP(return, "Missing KVM_MEM_GUEST_MEMFD / KVM_X86_SW_PROTECTED_VM"); + + ksft_print_msg("Testing ADD of KVM_MEM_GUEST_MEMFD memory regions\n"); vm = vm_create_barebones_protected_vm(); @@ -491,13 +517,16 @@ static void test_add_private_memory_region(void) kvm_vm_free(vm); } -static void test_add_overlapping_private_memory_regions(void) +TEST(add_overlapping_private_memory_regions) { struct kvm_vm *vm; int memfd; int r; - pr_info("Testing ADD of overlapping KVM_MEM_GUEST_MEMFD memory regions\n"); + if (!has_cap_guest_memfd()) + SKIP(return, "Missing KVM_MEM_GUEST_MEMFD / KVM_X86_SW_PROTECTED_VM"); + + ksft_print_msg("Testing ADD of overlapping KVM_MEM_GUEST_MEMFD memory regions\n"); vm = vm_create_barebones_protected_vm(); @@ -536,46 +565,15 @@ static void test_add_overlapping_private_memory_regions(void) close(memfd); kvm_vm_free(vm); } + #endif int main(int argc, char *argv[]) { -#ifdef __x86_64__ - int i, loops; - - /* - * FIXME: the zero-memslot test fails on aarch64 and s390x because - * KVM_RUN fails with ENOEXEC or EFAULT. - */ - test_zero_memory_regions(); -#endif - - test_invalid_memory_region_flags(); - - test_add_max_memory_regions(); - -#ifdef __x86_64__ - if (kvm_has_cap(KVM_CAP_GUEST_MEMFD) && - (kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SW_PROTECTED_VM))) { - test_add_private_memory_region(); - test_add_overlapping_private_memory_regions(); - } else { - pr_info("Skipping tests for KVM_MEM_GUEST_MEMFD memory regions\n"); - } - if (argc > 1) loops = atoi_positive("Number of iterations", argv[1]); else loops = 10; - pr_info("Testing MOVE of in-use region, %d loops\n", loops); - for (i = 0; i < loops; i++) - test_move_memory_region(); - - pr_info("Testing DELETE of in-use region, %d loops\n", loops); - for (i = 0; i < loops; i++) - test_delete_memory_region(); -#endif - - return 0; + return test_harness_run(argc, argv); }
Use the kselftest_harness.h interface in this test to get TAP output, so that it is easier for the user to see what the test is doing. (Note: We are not using the KVM_ONE_VCPU_TEST_SUITE() macro here since these tests are creating their VMs with the vm_create_barebones() function, not with vm_create_with_one_vcpu()) Signed-off-by: Thomas Huth <thuth@redhat.com> --- .../selftests/kvm/set_memory_region_test.c | 86 +++++++++---------- 1 file changed, 42 insertions(+), 44 deletions(-)