diff options
| -rw-r--r-- | tools/testing/selftests/kvm/demand_paging_test.c | 2 | ||||
| -rw-r--r-- | tools/testing/selftests/kvm/dirty_log_perf_test.c | 2 | ||||
| -rw-r--r-- | tools/testing/selftests/kvm/include/kvm_util.h | 8 | ||||
| -rw-r--r-- | tools/testing/selftests/kvm/include/perf_test_util.h | 47 | ||||
| -rw-r--r-- | tools/testing/selftests/kvm/lib/kvm_util.c | 9 |
5 files changed, 21 insertions, 47 deletions
diff --git a/tools/testing/selftests/kvm/demand_paging_test.c b/tools/testing/selftests/kvm/demand_paging_test.c index 946161a9ce2d..b0c41de32e9b 100644 --- a/tools/testing/selftests/kvm/demand_paging_test.c +++ b/tools/testing/selftests/kvm/demand_paging_test.c @@ -7,7 +7,7 @@ * Copyright (C) 2019, Google, Inc. */ -#define _GNU_SOURCE /* for program_invocation_name and pipe2 */ +#define _GNU_SOURCE /* for pipe2 */ #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/dirty_log_perf_test.c b/tools/testing/selftests/kvm/dirty_log_perf_test.c index 506741eb5d7f..36bea75a8d6f 100644 --- a/tools/testing/selftests/kvm/dirty_log_perf_test.c +++ b/tools/testing/selftests/kvm/dirty_log_perf_test.c @@ -8,8 +8,6 @@ * Copyright (C) 2020, Google, Inc. */ -#define _GNU_SOURCE /* for program_invocation_name */ - #include <stdio.h> #include <stdlib.h> #include <time.h> diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h index dfa9d369e8fc..149766ecd68b 100644 --- a/tools/testing/selftests/kvm/include/kvm_util.h +++ b/tools/testing/selftests/kvm/include/kvm_util.h @@ -70,6 +70,14 @@ enum vm_guest_mode { #define vm_guest_mode_string(m) vm_guest_mode_string[m] extern const char * const vm_guest_mode_string[]; +struct vm_guest_mode_params { + unsigned int pa_bits; + unsigned int va_bits; + unsigned int page_size; + unsigned int page_shift; +}; +extern const struct vm_guest_mode_params vm_guest_mode_params[]; + enum vm_mem_backing_src_type { VM_MEM_SRC_ANONYMOUS, VM_MEM_SRC_ANONYMOUS_THP, diff --git a/tools/testing/selftests/kvm/include/perf_test_util.h b/tools/testing/selftests/kvm/include/perf_test_util.h index 239421e4f6b8..cd4c258f458d 100644 --- a/tools/testing/selftests/kvm/include/perf_test_util.h +++ b/tools/testing/selftests/kvm/include/perf_test_util.h @@ -13,9 +13,6 @@ #define MAX_VCPUS 512 -#define PAGE_SHIFT_4K 12 -#define PTES_PER_4K_PT 512 - #define TEST_MEM_SLOT_INDEX 1 /* Default guest test virtual memory offset */ @@ -94,41 +91,26 @@ static struct kvm_vm *create_vm(enum vm_guest_mode mode, int vcpus, uint64_t vcpu_memory_bytes) { struct kvm_vm *vm; - uint64_t pages = DEFAULT_GUEST_PHY_PAGES; uint64_t guest_num_pages; - /* Account for a few pages per-vCPU for stacks */ - pages += DEFAULT_STACK_PGS * vcpus; - - /* - * Reserve twice the ammount of memory needed to map the test region and - * the page table / stacks region, at 4k, for page tables. Do the - * calculation with 4K page size: the smallest of all archs. (e.g., 64K - * page size guest will need even less memory for page tables). - */ - pages += (2 * pages) / PTES_PER_4K_PT; - pages += ((2 * vcpus * vcpu_memory_bytes) >> PAGE_SHIFT_4K) / - PTES_PER_4K_PT; - pages = vm_adjust_num_guest_pages(mode, pages); - pr_info("Testing guest mode: %s\n", vm_guest_mode_string(mode)); - vm = vm_create(mode, pages, O_RDWR); - kvm_vm_elf_load(vm, program_invocation_name, 0, 0); -#ifdef __x86_64__ - vm_create_irqchip(vm); -#endif - - perf_test_args.vm = vm; - perf_test_args.guest_page_size = vm_get_page_size(vm); perf_test_args.host_page_size = getpagesize(); + perf_test_args.guest_page_size = vm_guest_mode_params[mode].page_size; + guest_num_pages = vm_adjust_num_guest_pages(mode, + (vcpus * vcpu_memory_bytes) / perf_test_args.guest_page_size); + + TEST_ASSERT(vcpu_memory_bytes % perf_test_args.host_page_size == 0, + "Guest memory size is not host page size aligned."); TEST_ASSERT(vcpu_memory_bytes % perf_test_args.guest_page_size == 0, "Guest memory size is not guest page size aligned."); - guest_num_pages = (vcpus * vcpu_memory_bytes) / - perf_test_args.guest_page_size; - guest_num_pages = vm_adjust_num_guest_pages(mode, guest_num_pages); + vm = vm_create_with_vcpus(mode, vcpus, + (vcpus * vcpu_memory_bytes) / perf_test_args.guest_page_size, + 0, guest_code, NULL); + + perf_test_args.vm = vm; /* * If there should be more memory in the guest test region than there @@ -140,18 +122,13 @@ static struct kvm_vm *create_vm(enum vm_guest_mode mode, int vcpus, guest_num_pages, vm_get_max_gfn(vm), vcpus, vcpu_memory_bytes); - TEST_ASSERT(vcpu_memory_bytes % perf_test_args.host_page_size == 0, - "Guest memory size is not host page size aligned."); - guest_test_phys_mem = (vm_get_max_gfn(vm) - guest_num_pages) * perf_test_args.guest_page_size; guest_test_phys_mem &= ~(perf_test_args.host_page_size - 1); - #ifdef __s390x__ /* Align to 1M (segment size) */ guest_test_phys_mem &= ~((1 << 20) - 1); #endif - pr_info("guest physical test memory offset: 0x%lx\n", guest_test_phys_mem); /* Add an extra memory slot for testing */ @@ -177,8 +154,6 @@ static void add_vcpus(struct kvm_vm *vm, int vcpus, uint64_t vcpu_memory_bytes) for (vcpu_id = 0; vcpu_id < vcpus; vcpu_id++) { vcpu_args = &perf_test_args.vcpu_args[vcpu_id]; - vm_vcpu_add_default(vm, vcpu_id, guest_code); - vcpu_args->vcpu_id = vcpu_id; vcpu_args->gva = guest_test_virt_mem + (vcpu_id * vcpu_memory_bytes); diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c index 88ef7067f1e6..fa5a90e6c6f0 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util.c +++ b/tools/testing/selftests/kvm/lib/kvm_util.c @@ -153,14 +153,7 @@ const char * const vm_guest_mode_string[] = { _Static_assert(sizeof(vm_guest_mode_string)/sizeof(char *) == NUM_VM_MODES, "Missing new mode strings?"); -struct vm_guest_mode_params { - unsigned int pa_bits; - unsigned int va_bits; - unsigned int page_size; - unsigned int page_shift; -}; - -static const struct vm_guest_mode_params vm_guest_mode_params[] = { +const struct vm_guest_mode_params vm_guest_mode_params[] = { { 52, 48, 0x1000, 12 }, { 52, 48, 0x10000, 16 }, { 48, 48, 0x1000, 12 }, |