diff options
Diffstat (limited to 'usr/src/test/bhyve-tests/tests/inst_emul/page_dirty.c')
| -rw-r--r-- | usr/src/test/bhyve-tests/tests/inst_emul/page_dirty.c | 79 |
1 files changed, 74 insertions, 5 deletions
diff --git a/usr/src/test/bhyve-tests/tests/inst_emul/page_dirty.c b/usr/src/test/bhyve-tests/tests/inst_emul/page_dirty.c index 2e3a06bf47..36b9721701 100644 --- a/usr/src/test/bhyve-tests/tests/inst_emul/page_dirty.c +++ b/usr/src/test/bhyve-tests/tests/inst_emul/page_dirty.c @@ -29,6 +29,7 @@ #include <sys/vmm_dev.h> #include <vmmapi.h> +#include "common.h" #include "in_guest.h" #define PAGE_SZ 4096 @@ -70,6 +71,73 @@ count_dirty_pages(const uint8_t *bitmap) return (count); } +void +check_supported(const char *test_suite_name) +{ + char name[VM_MAX_NAMELEN]; + int err; + + name_test_vm(test_suite_name, name); + + err = vm_create(name, VCF_TRACK_DIRTY); + if (err == 0) { + /* + * We created the VM successfully, so we know that dirty page + * tracking is supported. + */ + err = destroy_instance(test_suite_name); + if (err != 0) { + (void) fprintf(stderr, + "Could not destroy VM: %s\n", strerror(errno)); + (void) printf("FAIL %s\n", test_suite_name); + exit(EXIT_FAILURE); + } + } else if (errno == ENOTSUP) { + (void) printf( + "Skipping test: dirty page tracking not supported\n"); + (void) printf("PASS %s\n", test_suite_name); + exit(EXIT_SUCCESS); + } else { + /* + * Ignore any other errors, they'll be caught by subsequent + * test routines. + */ + } +} + +void +test_dirty_tracking_disabled(const char *test_suite_name) +{ + struct vmctx *ctx = NULL; + int err; + + uint8_t dirty_bitmap[DIRTY_BITMAP_SZ] = { 0 }; + struct vmm_dirty_tracker track = { + .vdt_start_gpa = 0, + .vdt_len = MEM_TOTAL_SZ, + .vdt_pfns = (void *)dirty_bitmap, + }; + + /* Create VM without VCF_TRACK_DIRTY flag */ + ctx = test_initialize_flags(test_suite_name, 0); + + err = test_setup_vcpu(ctx, 0, MEM_LOC_PAYLOAD, MEM_LOC_STACK); + if (err != 0) { + test_fail_errno(err, "Could not initialize vcpu0"); + } + + /* Try to query for dirty pages */ + err = ioctl(vm_get_device_fd(ctx), VM_TRACK_DIRTY_PAGES, &track); + if (err == 0) { + test_fail_msg("VM_TRACK_DIRTY_PAGES succeeded unexpectedly\n"); + } else if (errno != EPERM) { + test_fail_errno(errno, + "VM_TRACK_DIRTY_PAGES failed with unexpected error"); + } + + test_cleanup(false); +} + int main(int argc, char *argv[]) { @@ -77,12 +145,13 @@ main(int argc, char *argv[]) struct vmctx *ctx = NULL; int err; - ctx = test_initialize(test_suite_name); + /* Skip test if CPU doesn't support HW A/D tracking */ + check_supported(test_suite_name); + + /* Test for expected error with dirty tracking disabled */ + test_dirty_tracking_disabled(test_suite_name); - /* Until #14251 is fixed, warn the user of the test requirement */ - (void) fprintf(stderr, - "Ensure that 'gpt_track_dirty' is set to 1 via mdb -kw\n" - "The reasoning is described in illumos #14251\n"); + ctx = test_initialize_flags(test_suite_name, VCF_TRACK_DIRTY); err = test_setup_vcpu(ctx, 0, MEM_LOC_PAYLOAD, MEM_LOC_STACK); if (err != 0) { |