ide-test: Add FLUSH CACHE test case
This checks in particular that BSY is set while the flush request is in flight. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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@ -77,6 +77,7 @@ enum {
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enum {
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enum {
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CMD_READ_DMA = 0xc8,
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CMD_READ_DMA = 0xc8,
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CMD_WRITE_DMA = 0xca,
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CMD_WRITE_DMA = 0xca,
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CMD_FLUSH_CACHE = 0xe7,
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CMD_IDENTIFY = 0xec,
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CMD_IDENTIFY = 0xec,
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CMDF_ABORT = 0x100,
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CMDF_ABORT = 0x100,
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@ -424,6 +425,43 @@ static void test_identify(void)
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ide_test_quit();
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ide_test_quit();
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}
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}
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static void test_flush(void)
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{
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uint8_t data;
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ide_test_start(
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"-vnc none "
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"-drive file=blkdebug::%s,if=ide,cache=writeback",
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tmp_path);
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/* Delay the completion of the flush request until we explicitly do it */
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qmp("{'execute':'human-monitor-command', 'arguments': { "
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"'command-line': 'qemu-io ide0-hd0 \"break flush_to_os A\"'} }");
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/* FLUSH CACHE command on device 0*/
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outb(IDE_BASE + reg_device, 0);
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outb(IDE_BASE + reg_command, CMD_FLUSH_CACHE);
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/* Check status while request is in flight*/
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data = inb(IDE_BASE + reg_status);
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assert_bit_set(data, BSY | DRDY);
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assert_bit_clear(data, DF | ERR | DRQ);
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/* Complete the command */
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qmp("{'execute':'human-monitor-command', 'arguments': { "
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"'command-line': 'qemu-io ide0-hd0 \"resume A\"'} }");
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/* Check registers */
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data = inb(IDE_BASE + reg_device);
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g_assert_cmpint(data & DEV, ==, 0);
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data = inb(IDE_BASE + reg_status);
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assert_bit_set(data, DRDY);
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assert_bit_clear(data, BSY | DF | ERR | DRQ);
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ide_test_quit();
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}
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int main(int argc, char **argv)
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int main(int argc, char **argv)
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{
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{
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const char *arch = qtest_get_arch();
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const char *arch = qtest_get_arch();
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@ -454,6 +492,8 @@ int main(int argc, char **argv)
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qtest_add_func("/ide/bmdma/long_prdt", test_bmdma_long_prdt);
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qtest_add_func("/ide/bmdma/long_prdt", test_bmdma_long_prdt);
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qtest_add_func("/ide/bmdma/teardown", test_bmdma_teardown);
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qtest_add_func("/ide/bmdma/teardown", test_bmdma_teardown);
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qtest_add_func("/ide/flush", test_flush);
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ret = g_test_run();
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ret = g_test_run();
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/* Cleanup */
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/* Cleanup */
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