diff options
Diffstat (limited to 'tools/testing/selftests/kvm/demand_paging_test.c')
| -rw-r--r-- | tools/testing/selftests/kvm/demand_paging_test.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/tools/testing/selftests/kvm/demand_paging_test.c b/tools/testing/selftests/kvm/demand_paging_test.c index e6582f504c0f..8c03484a5784 100644 --- a/tools/testing/selftests/kvm/demand_paging_test.c +++ b/tools/testing/selftests/kvm/demand_paging_test.c @@ -240,6 +240,7 @@ static void setup_demand_paging(struct kvm_vm *vm, struct test_params { bool use_uffd; useconds_t uffd_delay; + enum vm_mem_backing_src_type src_type; bool partition_vcpu_memory_access; }; @@ -257,11 +258,11 @@ static void run_test(enum vm_guest_mode mode, void *arg) int r; vm = perf_test_create_vm(mode, nr_vcpus, guest_percpu_mem_size, - VM_MEM_SRC_ANONYMOUS); + p->src_type); perf_test_args.wr_fract = 1; - demand_paging_size = get_backing_src_pagesz(VM_MEM_SRC_ANONYMOUS); + demand_paging_size = get_backing_src_pagesz(p->src_type); guest_data_prototype = malloc(demand_paging_size); TEST_ASSERT(guest_data_prototype, @@ -377,7 +378,7 @@ static void help(char *name) { puts(""); printf("usage: %s [-h] [-m mode] [-u] [-d uffd_delay_usec]\n" - " [-b memory] [-v vcpus] [-o]\n", name); + " [-b memory] [-t type] [-v vcpus] [-o]\n", name); guest_modes_help(); printf(" -u: use User Fault FD to handle vCPU page\n" " faults.\n"); @@ -387,6 +388,8 @@ static void help(char *name) printf(" -b: specify the size of the memory region which should be\n" " demand paged by each vCPU. e.g. 10M or 3G.\n" " Default: 1G\n"); + printf(" -t: The type of backing memory to use. Default: anonymous\n"); + backing_src_help(); printf(" -v: specify the number of vCPUs to run.\n"); printf(" -o: Overlap guest memory accesses instead of partitioning\n" " them into a separate region of memory for each vCPU.\n"); @@ -398,13 +401,14 @@ int main(int argc, char *argv[]) { int max_vcpus = kvm_check_cap(KVM_CAP_MAX_VCPUS); struct test_params p = { + .src_type = VM_MEM_SRC_ANONYMOUS, .partition_vcpu_memory_access = true, }; int opt; guest_modes_append_default(); - while ((opt = getopt(argc, argv, "hm:ud:b:v:o")) != -1) { + while ((opt = getopt(argc, argv, "hm:ud:b:t:v:o")) != -1) { switch (opt) { case 'm': guest_modes_cmdline(optarg); @@ -419,6 +423,9 @@ int main(int argc, char *argv[]) case 'b': guest_percpu_mem_size = parse_size(optarg); break; + case 't': + p.src_type = parse_backing_src_type(optarg); + break; case 'v': nr_vcpus = atoi(optarg); TEST_ASSERT(nr_vcpus > 0 && nr_vcpus <= max_vcpus, |