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Diffstat (limited to 'tools/testing/selftests/kvm/memslot_perf_test.c')
-rw-r--r--tools/testing/selftests/kvm/memslot_perf_test.c45
1 files changed, 28 insertions, 17 deletions
diff --git a/tools/testing/selftests/kvm/memslot_perf_test.c b/tools/testing/selftests/kvm/memslot_perf_test.c
index e6587e193490..5087d082c4b0 100644
--- a/tools/testing/selftests/kvm/memslot_perf_test.c
+++ b/tools/testing/selftests/kvm/memslot_perf_test.c
@@ -25,6 +25,7 @@
#include <test_util.h>
#include <kvm_util.h>
#include <processor.h>
+#include <ucall_common.h>
#define MEM_EXTRA_SIZE SZ_64K
@@ -113,6 +114,9 @@ static_assert(ATOMIC_BOOL_LOCK_FREE == 2, "atomic bool is not lockless");
static sem_t vcpu_ready;
static bool map_unmap_verify;
+#ifdef __x86_64__
+static bool disable_slot_zap_quirk;
+#endif
static bool verbose;
#define pr_info_v(...) \
@@ -157,7 +161,7 @@ static void *vcpu_worker(void *__data)
goto done;
break;
case UCALL_ABORT:
- REPORT_GUEST_ASSERT_1(uc, "val = %lu");
+ REPORT_GUEST_ASSERT(uc);
break;
case UCALL_DONE:
goto done;
@@ -175,11 +179,11 @@ static void wait_for_vcpu(void)
struct timespec ts;
TEST_ASSERT(!clock_gettime(CLOCK_REALTIME, &ts),
- "clock_gettime() failed: %d\n", errno);
+ "clock_gettime() failed: %d", errno);
ts.tv_sec += 2;
TEST_ASSERT(!sem_timedwait(&vcpu_ready, &ts),
- "sem_timedwait() failed: %d\n", errno);
+ "sem_timedwait() failed: %d", errno);
}
static void *vm_gpa2hva(struct vm_data *data, uint64_t gpa, uint64_t *rempages)
@@ -308,8 +312,6 @@ static bool prepare_vm(struct vm_data *data, int nslots, uint64_t *maxslots,
data->hva_slots = malloc(sizeof(*data->hva_slots) * data->nslots);
TEST_ASSERT(data->hva_slots, "malloc() fail");
- data->vm = __vm_create_with_one_vcpu(&data->vcpu, mempages, guest_code);
-
pr_info_v("Adding slots 1..%i, each slot with %"PRIu64" pages + %"PRIu64" extra pages last\n",
data->nslots, data->pages_per_slot, rempages);
@@ -338,7 +340,7 @@ static bool prepare_vm(struct vm_data *data, int nslots, uint64_t *maxslots,
gpa = vm_phy_pages_alloc(data->vm, npages, guest_addr, slot);
TEST_ASSERT(gpa == guest_addr,
- "vm_phy_pages_alloc() failed\n");
+ "vm_phy_pages_alloc() failed");
data->hva_slots[slot - 1] = addr_gpa2hva(data->vm, guest_addr);
memset(data->hva_slots[slot - 1], 0, npages * guest_page_size);
@@ -349,6 +351,7 @@ static bool prepare_vm(struct vm_data *data, int nslots, uint64_t *maxslots,
virt_map(data->vm, MEM_GPA, MEM_GPA, data->npages);
sync = (typeof(sync))vm_gpa2hva(data, MEM_SYNC_GPA, NULL);
+ sync->guest_page_size = data->vm->page_size;
atomic_init(&sync->start_flag, false);
atomic_init(&sync->exit_flag, false);
atomic_init(&sync->sync_flag, false);
@@ -415,7 +418,7 @@ static bool _guest_should_exit(void)
*/
static noinline void host_perform_sync(struct sync_area *sync)
{
- alarm(2);
+ alarm(10);
atomic_store_explicit(&sync->sync_flag, true, memory_order_release);
while (atomic_load_explicit(&sync->sync_flag, memory_order_acquire))
@@ -561,7 +564,7 @@ static void guest_code_test_memslot_rw(void)
ptr < MEM_TEST_GPA + MEM_TEST_SIZE; ptr += page_size) {
uint64_t val = *(uint64_t *)ptr;
- GUEST_ASSERT_1(val == MEM_TEST_VAL_2, val);
+ GUEST_ASSERT_EQ(val, MEM_TEST_VAL_2);
*(uint64_t *)ptr = 0;
}
@@ -579,6 +582,11 @@ static bool test_memslot_move_prepare(struct vm_data *data,
uint32_t guest_page_size = data->vm->page_size;
uint64_t movesrcgpa, movetestgpa;
+#ifdef __x86_64__
+ if (disable_slot_zap_quirk)
+ vm_enable_cap(data->vm, KVM_CAP_DISABLE_QUIRKS2, KVM_X86_QUIRK_SLOT_ZAP_ALL);
+#endif
+
movesrcgpa = vm_slot2gpa(data, data->nslots - 1);
if (isactive) {
@@ -810,8 +818,6 @@ static bool test_execute(int nslots, uint64_t *maxslots,
}
sync = (typeof(sync))vm_gpa2hva(data, MEM_SYNC_GPA, NULL);
-
- sync->guest_page_size = data->vm->page_size;
if (tdata->prepare &&
!tdata->prepare(data, sync, maxslots)) {
ret = false;
@@ -899,6 +905,7 @@ static void help(char *name, struct test_args *targs)
pr_info(" -h: print this help screen.\n");
pr_info(" -v: enable verbose mode (not for benchmarking).\n");
pr_info(" -d: enable extra debug checks.\n");
+ pr_info(" -q: Disable memslot zap quirk during memslot move.\n");
pr_info(" -s: specify memslot count cap (-1 means no cap; currently: %i)\n",
targs->nslots);
pr_info(" -f: specify the first test to run (currently: %i; max %zu)\n",
@@ -957,7 +964,7 @@ static bool parse_args(int argc, char *argv[],
uint32_t max_mem_slots;
int opt;
- while ((opt = getopt(argc, argv, "hvds:f:e:l:r:")) != -1) {
+ while ((opt = getopt(argc, argv, "hvdqs:f:e:l:r:")) != -1) {
switch (opt) {
case 'h':
default:
@@ -969,6 +976,13 @@ static bool parse_args(int argc, char *argv[],
case 'd':
map_unmap_verify = true;
break;
+#ifdef __x86_64__
+ case 'q':
+ disable_slot_zap_quirk = true;
+ TEST_REQUIRE(kvm_check_cap(KVM_CAP_DISABLE_QUIRKS2) &
+ KVM_X86_QUIRK_SLOT_ZAP_ALL);
+ break;
+#endif
case 's':
targs->nslots = atoi_paranoid(optarg);
if (targs->nslots <= 1 && targs->nslots != -1) {
@@ -1036,9 +1050,8 @@ static bool test_loop(const struct test_data *data,
struct test_result *rbestruntime)
{
uint64_t maxslots;
- struct test_result result;
+ struct test_result result = {};
- result.nloops = 0;
if (!test_execute(targs->nslots, &maxslots, targs->seconds, data,
&result.nloops,
&result.slot_runtime, &result.guest_runtime)) {
@@ -1092,7 +1105,7 @@ int main(int argc, char *argv[])
.seconds = 5,
.runs = 1,
};
- struct test_result rbestslottime;
+ struct test_result rbestslottime = {};
int tctr;
if (!check_memory_sizes())
@@ -1101,11 +1114,10 @@ int main(int argc, char *argv[])
if (!parse_args(argc, argv, &targs))
return -1;
- rbestslottime.slottimens = 0;
for (tctr = targs.tfirst; tctr <= targs.tlast; tctr++) {
const struct test_data *data = &tests[tctr];
unsigned int runctr;
- struct test_result rbestruntime;
+ struct test_result rbestruntime = {};
if (tctr > targs.tfirst)
pr_info("\n");
@@ -1113,7 +1125,6 @@ int main(int argc, char *argv[])
pr_info("Testing %s performance with %i runs, %d seconds each\n",
data->name, targs.runs, targs.seconds);
- rbestruntime.runtimens = 0;
for (runctr = 0; runctr < targs.runs; runctr++)
if (!test_loop(data, &targs,
&rbestslottime, &rbestruntime))
generated by cgit (git 2.34.1) at 2025-12-25 07:06:35 +0000