diff options
Diffstat (limited to 'test/qemu-eviction.c')
| -rw-r--r-- | test/qemu-eviction.c | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/test/qemu-eviction.c b/test/qemu-eviction.c deleted file mode 100644 index 2392472..0000000 --- a/test/qemu-eviction.c +++ /dev/null @@ -1,231 +0,0 @@ -#include "test/kvm-eviction.h" -#include "test/kvm.h" -#include "test/util.h" -#include "cachepc/uapi.h" - -#include <sys/ioctl.h> -#include <sys/mman.h> -#include <signal.h> -#include <unistd.h> -#include <fcntl.h> -#include <errno.h> -#include <err.h> -#include <string.h> -#include <stdbool.h> -#include <stdio.h> -#include <stdlib.h> - -static struct cpc_event event; -static struct cpc_event_batch batch; - -int -monitor(bool baseline) -{ - uint8_t counts[L1_SETS]; - int ret; - - ret = ioctl(kvm_dev, KVM_CPC_POLL_EVENT, &event); - if (ret && errno == EAGAIN) return 0; - if (ret) err(1, "KVM_CPC_POLL_EVENT"); - - switch (event.type) { - case CPC_EVENT_GUEST: - printf("Guest event: %i\n", event.guest.type); - if (event.guest.type == CPC_GUEST_STOP_TRACK) - return 2; - break; - case CPC_EVENT_TRACK_STEP: - ret = ioctl(kvm_dev, KVM_CPC_READ_COUNTS, counts); - if (ret) err(1, "KVM_CPC_READ_COUNTS"); - - printf("Event: rip:%016llx cnt:%llu " - "inst:%08llx ret:%llu\n", - vm_get_rip(), event.step.fault_count, - event.step.inst_gfn, event.step.retinst); - print_counts(counts); - printf("\n"); - print_counts_raw(counts); - printf("\n"); - break; - default: - errx(1, "unexpected event type %i", event.type); - } - - ret = ioctl(kvm_dev, KVM_CPC_ACK_EVENT, &event.id); - if (ret) err(1, "KVM_CPC_ACK_EVENT"); - - return 1; -} - -void -read_batch(void) -{ - uint32_t i; - int ret; - - ret = ioctl(kvm_dev, KVM_CPC_READ_BATCH, &batch); - if (ret && errno == EAGAIN) return; - if (ret && errno != EAGAIN) err(1, "KVM_CPC_READ_BATCH"); - - for (i = 0; i < batch.cnt; i++) { - if (batch.buf[i].type != CPC_EVENT_TRACK_PAGE) - continue; - - printf("GFN %08llx\n", batch.buf[i].page.inst_gfn); - } -} - -void -reset(int sig) -{ - int ret; - - ret = ioctl(kvm_dev, KVM_CPC_RESET); - if (ret) err(1, "KVM_CPC_RESET"); - - exit(1); -} - -int -main(int argc, const char **argv) -{ - uint8_t baseline[L1_SETS]; - struct cpc_track_cfg cfg; - bool first_guest_event; - uint32_t eventcnt; - uint32_t arg; - int ret; - - pin_process(0, SECONDARY_CORE, true); - - setvbuf(stdout, NULL, _IONBF, 0); - - kvm_setup_init(); - - ret = ioctl(kvm_dev, KVM_CPC_RESET); - if (ret) err(1, "KVM_CPC_RESET"); - - signal(SIGINT, reset); - - arg = true; - ret = ioctl(kvm_dev, KVM_CPC_CALC_BASELINE, &arg); - if (ret) err(1, "KVM_CPC_CALC_BASELINE"); - - memset(&cfg, 0, sizeof(cfg)); - cfg.mode = CPC_TRACK_STEPS; - cfg.steps.with_data = true; - cfg.steps.use_filter = true; - ret = ioctl(kvm_dev, KVM_CPC_TRACK_MODE, &cfg); - if (ret) err(1, "KVM_CPC_RESET"); - - eventcnt = 0; - while (eventcnt < 50) { - eventcnt += monitor(true); - } - - ret = ioctl(kvm_dev, KVM_CPC_VM_REQ_PAUSE); - if (ret) err(1, "KVM_CPC_VM_REQ_PAUSE"); - - while (1) { - ret = ioctl(kvm_dev, KVM_CPC_POLL_EVENT, &event); - if (ret && errno == EAGAIN) continue; - if (ret) err(1, "KVM_CPC_POLL_EVENT"); - - if (event.type == CPC_EVENT_PAUSE) break; - - ret = ioctl(kvm_dev, KVM_CPC_ACK_EVENT, &event.id); - if (ret) err(1, "KVM_CPC_ACK_EVENT"); - } - - arg = false; - ret = ioctl(kvm_dev, KVM_CPC_CALC_BASELINE, &arg); - if (ret) err(1, "KVM_CPC_CALC_BASELINE"); - - arg = true; - ret = ioctl(kvm_dev, KVM_CPC_APPLY_BASELINE, &arg); - if (ret) err(1, "KVM_CPC_APPLY_BASELINE"); - - ret = ioctl(kvm_dev, KVM_CPC_READ_BASELINE, baseline); - if (ret) err(1, "KVM_CPC_READ_BASELINE"); - - printf("\nBaseline:\n"); - print_counts(baseline); - printf("\n"); - print_counts_raw(baseline); - printf("\n\n"); - - memset(&cfg, 0, sizeof(&cfg)); - cfg.mode = CPC_TRACK_NONE; - ret = ioctl(kvm_dev, KVM_CPC_TRACK_MODE, &cfg); - if (ret) err(1, "KVM_CPC_TRACK_MODE"); - - ret = ioctl(kvm_dev, KVM_CPC_ACK_EVENT, &event.id); - if (ret) err(1, "KVM_CPC_ACK_EVENT"); - - /* wait until guest program is run */ - printf("Press enter to continue..\n"); - getchar(); - - arg = true; - ret = ioctl(kvm_dev, KVM_CPC_BATCH_EVENTS, &arg); - if (ret) err(1, "KVM_CPC_BATCH_EVENTS"); - - memset(&cfg, 0, sizeof(cfg)); - cfg.mode = CPC_TRACK_PAGES; - ret = ioctl(kvm_dev, KVM_CPC_TRACK_MODE, &cfg); - if (ret) err(1, "KVM_CPC_TRACK_MODE"); - - batch.cnt = 0; - batch.maxcnt = CPC_EVENT_BATCH_MAX; - batch.buf = malloc(sizeof(struct cpc_event) * batch.maxcnt); - if (!batch.buf) err(1, "malloc"); - - first_guest_event = true; - while (1) { - ret = ioctl(kvm_dev, KVM_CPC_POLL_EVENT, &event); - if (ret && errno == EAGAIN) continue; - if (ret) err(1, "KVM_CPC_POLL_EVENT"); - - printf("EVENT %i\n", event.type); - - if (event.type == CPC_EVENT_GUEST - && event.guest.type == CPC_GUEST_START_TRACK) { - if (!first_guest_event) - break; - first_guest_event = false; - } - - if (event.type == CPC_EVENT_BATCH) - read_batch(); - - ret = ioctl(kvm_dev, KVM_CPC_ACK_EVENT, &event.id); - if (ret) err(1, "KVM_CPC_ACK_EVENT"); - } - - read_batch(); - - if (!batch.cnt) errx(1, "empty batch buffer"); - memset(&cfg, 0, sizeof(cfg)); - cfg.mode = CPC_TRACK_STEPS; - cfg.steps.target_gfn = batch.buf[batch.cnt - 3].page.inst_gfn; - cfg.steps.use_target = true; - cfg.steps.use_filter = true; - cfg.steps.with_data = true; - ret = ioctl(kvm_dev, KVM_CPC_TRACK_MODE, &cfg); - if (ret) err(1, "KVM_CPC_TRACK_MODE"); - - ret = ioctl(kvm_dev, KVM_CPC_ACK_EVENT, &event.id); - if (ret) err(1, "KVM_CPC_ACK_EVENT"); - - while (monitor(false) != 2); - - signal(SIGINT, NULL); - - ret = ioctl(kvm_dev, KVM_CPC_RESET); - if (ret) err(1, "KVM_CPC_RESET"); - - free(batch.buf); - - kvm_setup_deinit(); -} - |