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 <[email protected]>
---
 .../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);
 }
-- 
2.44.0


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