diff options
| -rw-r--r-- | tests/ahci-test.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/tests/ahci-test.c b/tests/ahci-test.c index f6de355fb7..4eb110508b 100644 --- a/tests/ahci-test.c +++ b/tests/ahci-test.c @@ -1155,6 +1155,65 @@ static void test_migrate_dma(void) } /** + * DMA Error Test + * + * Simulate an error on first write, Try to write a pattern, + * Confirm the VM has stopped, resume the VM, verify command + * has completed, then read back the data and verify. + */ +static void test_halted_dma(void) +{ + AHCIQState *ahci; + uint8_t port; + size_t bufsize = 4096; + unsigned char *tx = g_malloc(bufsize); + unsigned char *rx = g_malloc0(bufsize); + unsigned i; + uint64_t ptr; + AHCICommand *cmd; + + prepare_blkdebug_script(debug_path, "write_aio"); + + ahci = ahci_boot_and_enable("-drive file=blkdebug:%s:%s,if=none,id=drive0," + "format=qcow2,cache=writeback," + "rerror=stop,werror=stop " + "-M q35 " + "-device ide-hd,drive=drive0 ", + debug_path, + tmp_path); + + /* Initialize and prepare */ + port = ahci_port_select(ahci); + ahci_port_clear(ahci, port); + + for (i = 0; i < bufsize; i++) { + tx[i] = (bufsize - i); + } + + /* create DMA source buffer and write pattern */ + ptr = ahci_alloc(ahci, bufsize); + g_assert(ptr); + memwrite(ptr, tx, bufsize); + + /* Attempt to write (and fail) */ + cmd = ahci_guest_io_halt(ahci, port, CMD_WRITE_DMA, + ptr, bufsize, 0); + + /* Attempt to resume the command */ + ahci_guest_io_resume(ahci, cmd); + ahci_free(ahci, ptr); + + /* Read back and verify */ + ahci_io(ahci, port, CMD_READ_DMA, rx, bufsize, 0); + g_assert_cmphex(memcmp(tx, rx, bufsize), ==, 0); + + /* Cleanup and go home */ + ahci_shutdown(ahci); + g_free(rx); + g_free(tx); +} + +/** * Migration test: Try to flush, migrate, then resume. */ static void test_flush_migrate(void) @@ -1455,6 +1514,7 @@ int main(int argc, char **argv) qtest_add_func("/ahci/migrate/sanity", test_migrate_sanity); qtest_add_func("/ahci/migrate/dma", test_migrate_dma); + qtest_add_func("/ahci/io/dma/lba28/retry", test_halted_dma); ret = g_test_run(); |