kvm: selftests: move arch-specific files to arch-specific locations

Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 0 insertions, 307 deletions

diff --git a/tools/testing/selftests/kvm/dirty_log_test.c b/tools/testing/selftests/kvm/dirty_log_test.c
deleted file mode 100644
index 7cf3e4ae6046..000000000000
--- a/tools/testing/selftests/kvm/dirty_log_test.c
+++ /dev/null
@@ -1,307 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * KVM dirty page logging test
- *
- * Copyright (C) 2018, Red Hat, Inc.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <time.h>
-#include <pthread.h>
-#include <linux/bitmap.h>
-#include <linux/bitops.h>
-
-#include "test_util.h"
-#include "kvm_util.h"
-
-#define  DEBUG                 printf
-
-#define  VCPU_ID                        1
-/* The memory slot index to track dirty pages */
-#define  TEST_MEM_SLOT_INDEX            1
-/*
- * GPA offset of the testing memory slot. Must be bigger than the
- * default vm mem slot, which is DEFAULT_GUEST_PHY_PAGES.
- */
-#define  TEST_MEM_OFFSET                (1ULL << 30) /* 1G */
-/* Size of the testing memory slot */
-#define  TEST_MEM_PAGES                 (1ULL << 18) /* 1G for 4K pages */
-/* How many pages to dirty for each guest loop */
-#define  TEST_PAGES_PER_LOOP            1024
-/* How many host loops to run (one KVM_GET_DIRTY_LOG for each loop) */
-#define  TEST_HOST_LOOP_N               32
-/* Interval for each host loop (ms) */
-#define  TEST_HOST_LOOP_INTERVAL        10
-
-/*
- * Guest variables.  We use these variables to share data between host
- * and guest.  There are two copies of the variables, one in host memory
- * (which is unused) and one in guest memory.  When the host wants to
- * access these variables, it needs to call addr_gva2hva() to access the
- * guest copy.
- */
-uint64_t guest_random_array[TEST_PAGES_PER_LOOP];
-uint64_t guest_iteration;
-uint64_t guest_page_size;
-
-/*
- * Writes to the first byte of a random page within the testing memory
- * region continuously.
- */
-void guest_code(void)
-{
-	int i = 0;
-	uint64_t volatile *array = guest_random_array;
-	uint64_t volatile *guest_addr;
-
-	while (true) {
-		for (i = 0; i < TEST_PAGES_PER_LOOP; i++) {
-			/*
-			 * Write to the first 8 bytes of a random page
-			 * on the testing memory region.
-			 */
-			guest_addr = (uint64_t *)
-			    (TEST_MEM_OFFSET +
-			     (array[i] % TEST_MEM_PAGES) * guest_page_size);
-			*guest_addr = guest_iteration;
-		}
-		/* Tell the host that we need more random numbers */
-		GUEST_SYNC(1);
-	}
-}
-
-/*
- * Host variables.  These variables should only be used by the host
- * rather than the guest.
- */
-bool host_quit;
-
-/* Points to the test VM memory region on which we track dirty logs */
-void *host_test_mem;
-
-/* For statistics only */
-uint64_t host_dirty_count;
-uint64_t host_clear_count;
-uint64_t host_track_next_count;
-
-/*
- * We use this bitmap to track some pages that should have its dirty
- * bit set in the _next_ iteration.  For example, if we detected the
- * page value changed to current iteration but at the same time the
- * page bit is cleared in the latest bitmap, then the system must
- * report that write in the next get dirty log call.
- */
-unsigned long *host_bmap_track;
-
-void generate_random_array(uint64_t *guest_array, uint64_t size)
-{
-	uint64_t i;
-
-	for (i = 0; i < size; i++) {
-		guest_array[i] = random();
-	}
-}
-
-void *vcpu_worker(void *data)
-{
-	int ret;
-	uint64_t loops, *guest_array, pages_count = 0;
-	struct kvm_vm *vm = data;
-	struct kvm_run *run;
-	struct ucall uc;
-
-	run = vcpu_state(vm, VCPU_ID);
-
-	/* Retrieve the guest random array pointer and cache it */
-	guest_array = addr_gva2hva(vm, (vm_vaddr_t)guest_random_array);
-
-	DEBUG("VCPU starts\n");
-
-	generate_random_array(guest_array, TEST_PAGES_PER_LOOP);
-
-	while (!READ_ONCE(host_quit)) {
-		/* Let the guest to dirty these random pages */
-		ret = _vcpu_run(vm, VCPU_ID);
-		if (run->exit_reason == KVM_EXIT_IO &&
-		    get_ucall(vm, VCPU_ID, &uc) == UCALL_SYNC) {
-			pages_count += TEST_PAGES_PER_LOOP;
-			generate_random_array(guest_array, TEST_PAGES_PER_LOOP);
-		} else {
-			TEST_ASSERT(false,
-				    "Invalid guest sync status: "
-				    "exit_reason=%s\n",
-				    exit_reason_str(run->exit_reason));
-		}
-	}
-
-	DEBUG("VCPU exits, dirtied %"PRIu64" pages\n", pages_count);
-
-	return NULL;
-}
-
-void vm_dirty_log_verify(unsigned long *bmap, uint64_t iteration)
-{
-	uint64_t page;
-	uint64_t volatile *value_ptr;
-
-	for (page = 0; page < TEST_MEM_PAGES; page++) {
-		value_ptr = host_test_mem + page * getpagesize();
-
-		/* If this is a special page that we were tracking... */
-		if (test_and_clear_bit(page, host_bmap_track)) {
-			host_track_next_count++;
-			TEST_ASSERT(test_bit(page, bmap),
-				    "Page %"PRIu64" should have its dirty bit "
-				    "set in this iteration but it is missing",
-				    page);
-		}
-
-		if (test_bit(page, bmap)) {
-			host_dirty_count++;
-			/*
-			 * If the bit is set, the value written onto
-			 * the corresponding page should be either the
-			 * previous iteration number or the current one.
-			 */
-			TEST_ASSERT(*value_ptr == iteration ||
-				    *value_ptr == iteration - 1,
-				    "Set page %"PRIu64" value %"PRIu64
-				    " incorrect (iteration=%"PRIu64")",
-				    page, *value_ptr, iteration);
-		} else {
-			host_clear_count++;
-			/*
-			 * If cleared, the value written can be any
-			 * value smaller or equals to the iteration
-			 * number.  Note that the value can be exactly
-			 * (iteration-1) if that write can happen
-			 * like this:
-			 *
-			 * (1) increase loop count to "iteration-1"
-			 * (2) write to page P happens (with value
-			 *     "iteration-1")
-			 * (3) get dirty log for "iteration-1"; we'll
-			 *     see that page P bit is set (dirtied),
-			 *     and not set the bit in host_bmap_track
-			 * (4) increase loop count to "iteration"
-			 *     (which is current iteration)
-			 * (5) get dirty log for current iteration,
-			 *     we'll see that page P is cleared, with
-			 *     value "iteration-1".
-			 */
-			TEST_ASSERT(*value_ptr <= iteration,
-				    "Clear page %"PRIu64" value %"PRIu64
-				    " incorrect (iteration=%"PRIu64")",
-				    page, *value_ptr, iteration);
-			if (*value_ptr == iteration) {
-				/*
-				 * This page is _just_ modified; it
-				 * should report its dirtyness in the
-				 * next run
-				 */
-				set_bit(page, host_bmap_track);
-			}
-		}
-	}
-}
-
-void help(char *name)
-{
-	puts("");
-	printf("usage: %s [-i iterations] [-I interval] [-h]\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);
-	puts("");
-	exit(0);
-}
-
-int main(int argc, char *argv[])
-{
-	pthread_t vcpu_thread;
-	struct kvm_vm *vm;
-	uint64_t volatile *psize, *iteration;
-	unsigned long *bmap, iterations = TEST_HOST_LOOP_N,
-	    interval = TEST_HOST_LOOP_INTERVAL;
-	int opt;
-
-	while ((opt = getopt(argc, argv, "hi:I:")) != -1) {
-		switch (opt) {
-		case 'i':
-			iterations = strtol(optarg, NULL, 10);
-			break;
-		case 'I':
-			interval = strtol(optarg, NULL, 10);
-			break;
-		case 'h':
-		default:
-			help(argv[0]);
-			break;
-		}
-	}
-
-	TEST_ASSERT(iterations > 2, "Iteration must be bigger than zero\n");
-	TEST_ASSERT(interval > 0, "Interval must be bigger than zero");
-
-	DEBUG("Test iterations: %"PRIu64", interval: %"PRIu64" (ms)\n",
-	      iterations, interval);
-
-	srandom(time(0));
-
-	bmap = bitmap_alloc(TEST_MEM_PAGES);
-	host_bmap_track = bitmap_alloc(TEST_MEM_PAGES);
-
-	vm = vm_create_default(VCPU_ID, TEST_MEM_PAGES, guest_code);
-
-	/* Add an extra memory slot for testing dirty logging */
-	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS,
-				    TEST_MEM_OFFSET,
-				    TEST_MEM_SLOT_INDEX,
-				    TEST_MEM_PAGES,
-				    KVM_MEM_LOG_DIRTY_PAGES);
-	/* Cache the HVA pointer of the region */
-	host_test_mem = addr_gpa2hva(vm, (vm_paddr_t)TEST_MEM_OFFSET);
-
-	/* Do 1:1 mapping for the dirty track memory slot */
-	virt_map(vm, TEST_MEM_OFFSET, TEST_MEM_OFFSET,
-		 TEST_MEM_PAGES * getpagesize(), 0);
-
-	vcpu_set_cpuid(vm, VCPU_ID, kvm_get_supported_cpuid());
-
-	/* Tell the guest about the page size on the system */
-	psize = addr_gva2hva(vm, (vm_vaddr_t)&guest_page_size);
-	*psize = getpagesize();
-
-	/* Start the iterations */
-	iteration = addr_gva2hva(vm, (vm_vaddr_t)&guest_iteration);
-	*iteration = 1;
-
-	/* Start dirtying pages */
-	pthread_create(&vcpu_thread, NULL, vcpu_worker, vm);
-
-	while (*iteration < iterations) {
-		/* Give the vcpu thread some time to dirty some pages */
-		usleep(interval * 1000);
-		kvm_vm_get_dirty_log(vm, TEST_MEM_SLOT_INDEX, bmap);
-		vm_dirty_log_verify(bmap, *iteration);
-		(*iteration)++;
-	}
-
-	/* Tell the vcpu thread to quit */
-	host_quit = true;
-	pthread_join(vcpu_thread, NULL);
-
-	DEBUG("Total bits checked: dirty (%"PRIu64"), clear (%"PRIu64"), "
-	      "track_next (%"PRIu64")\n", host_dirty_count, host_clear_count,
-	      host_track_next_count);
-
-	free(bmap);
-	free(host_bmap_track);
-	kvm_vm_free(vm);
-
-	return 0;
-}