diff options
Diffstat (limited to 'tools/testing/selftests/kvm/dirty_log_test.c')
| -rw-r--r-- | tools/testing/selftests/kvm/dirty_log_test.c | 36 |
1 files changed, 17 insertions, 19 deletions
diff --git a/tools/testing/selftests/kvm/dirty_log_test.c b/tools/testing/selftests/kvm/dirty_log_test.c index f68eee946129..9078b571c562 100644 --- a/tools/testing/selftests/kvm/dirty_log_test.c +++ b/tools/testing/selftests/kvm/dirty_log_test.c @@ -51,10 +51,16 @@ static uint64_t random_array[TEST_PAGES_PER_LOOP]; static uint64_t iteration; /* - * GPA offset of the testing memory slot. Must be bigger than - * DEFAULT_GUEST_PHY_PAGES * PAGE_SIZE. + * Guest physical memory offset of the testing memory slot. + * This will be set to the topmost valid physical address minus + * the test memory size. + */ +static uint64_t guest_test_phys_mem; + +/* + * Guest virtual memory offset of the testing memory slot. + * Must not conflict with identity mapped test code. */ -static uint64_t guest_test_phys_mem = DEFAULT_GUEST_TEST_MEM; static uint64_t guest_test_virt_mem = DEFAULT_GUEST_TEST_MEM; /* @@ -225,7 +231,7 @@ static struct kvm_vm *create_vm(enum vm_guest_mode mode, uint32_t vcpuid, } static void run_test(enum vm_guest_mode mode, unsigned long iterations, - unsigned long interval, bool top_offset) + unsigned long interval) { unsigned int guest_pa_bits, guest_page_shift; pthread_t vcpu_thread; @@ -273,7 +279,7 @@ static void run_test(enum vm_guest_mode mode, unsigned long iterations, host_num_pages = (guest_num_pages * guest_page_size) / host_page_size + !!((guest_num_pages * guest_page_size) % host_page_size); - if (top_offset) { + if (!guest_test_phys_mem) { guest_test_phys_mem = (max_gfn - guest_num_pages) * guest_page_size; guest_test_phys_mem &= ~(host_page_size - 1); } @@ -381,16 +387,14 @@ static void help(char *name) puts(""); printf("usage: %s [-h] [-i iterations] [-I interval] " - "[-o offset] [-t] [-m mode]\n", name); + "[-p offset] [-m mode]\n", name); puts(""); printf(" -i: specify iteration counts (default: %"PRIu64")\n", TEST_HOST_LOOP_N); printf(" -I: specify interval in ms (default: %"PRIu64" ms)\n", TEST_HOST_LOOP_INTERVAL); - printf(" -o: guest test memory offset (default: 0x%lx)\n", - DEFAULT_GUEST_TEST_MEM); - printf(" -t: map guest test memory at the top of the allowed " - "physical address range\n"); + printf(" -p: specify guest physical test memory offset\n" + " Warning: a low offset can conflict with the loaded test code.\n"); printf(" -m: specify the guest mode ID to test " "(default: test all supported modes)\n" " This option may be used multiple times.\n" @@ -410,7 +414,6 @@ int main(int argc, char *argv[]) unsigned long iterations = TEST_HOST_LOOP_N; unsigned long interval = TEST_HOST_LOOP_INTERVAL; bool mode_selected = false; - bool top_offset = false; unsigned int mode; int opt, i; @@ -421,7 +424,7 @@ int main(int argc, char *argv[]) } #endif - while ((opt = getopt(argc, argv, "hi:I:o:tm:")) != -1) { + while ((opt = getopt(argc, argv, "hi:I:p:m:")) != -1) { switch (opt) { case 'i': iterations = strtol(optarg, NULL, 10); @@ -429,12 +432,9 @@ int main(int argc, char *argv[]) case 'I': interval = strtol(optarg, NULL, 10); break; - case 'o': + case 'p': guest_test_phys_mem = strtoull(optarg, NULL, 0); break; - case 't': - top_offset = true; - break; case 'm': if (!mode_selected) { for (i = 0; i < NUM_VM_MODES; ++i) @@ -455,8 +455,6 @@ int main(int argc, char *argv[]) TEST_ASSERT(iterations > 2, "Iterations must be greater than two"); TEST_ASSERT(interval > 0, "Interval must be greater than zero"); - TEST_ASSERT(!top_offset || guest_test_phys_mem == DEFAULT_GUEST_TEST_MEM, - "Cannot use both -o [offset] and -t at the same time"); DEBUG("Test iterations: %"PRIu64", interval: %"PRIu64" (ms)\n", iterations, interval); @@ -470,7 +468,7 @@ int main(int argc, char *argv[]) "Guest mode ID %d (%s) not supported.", vm_guest_modes[i].mode, vm_guest_mode_string(vm_guest_modes[i].mode)); - run_test(vm_guest_modes[i].mode, iterations, interval, top_offset); + run_test(vm_guest_modes[i].mode, iterations, interval); } return 0; |