@@ -76,6 +76,7 @@ enum {
enum {
CMD_READ_DMA = 0xc8,
CMD_WRITE_DMA = 0xca,
+ CMD_FLUSH_CACHE = 0xe7,
CMD_IDENTIFY = 0xec,
CMDF_ABORT = 0x100,
@@ -423,6 +424,43 @@ static void test_identify(void)
ide_test_quit();
}
+static void test_flush(void)
+{
+ uint8_t data;
+
+ ide_test_start(
+ "-vnc none "
+ "-drive file=blkdebug::%s,if=ide,cache=writeback",
+ tmp_path);
+
+ /* Delay the completion of the flush request until we explicitly do it */
+ qmp("{'execute':'__org.qemu.debug-qemu-io-command', 'arguments': { "
+ "'device': 'ide0-hd0', 'command': 'break flush_to_os A'} }");
+
+ /* FLUSH CACHE command on device 0*/
+ outb(IDE_BASE + reg_device, 0);
+ outb(IDE_BASE + reg_command, CMD_FLUSH_CACHE);
+
+ /* Check status while request is in flight*/
+ data = inb(IDE_BASE + reg_status);
+ assert_bit_set(data, BSY | DRDY);
+ assert_bit_clear(data, DF | ERR | DRQ);
+
+ /* Complete the command */
+ qmp("{'execute':'__org.qemu.debug-qemu-io-command', 'arguments': { "
+ "'device': 'ide0-hd0', 'command': 'resume A'} }");
+
+ /* Check registers */
+ data = inb(IDE_BASE + reg_device);
+ g_assert_cmpint(data & 0x10, ==, 0);
+
+ data = inb(IDE_BASE + reg_status);
+ assert_bit_set(data, DRDY);
+ assert_bit_clear(data, BSY | DF | ERR | DRQ);
+
+ ide_test_quit();
+}
+
int main(int argc, char **argv)
{
const char *arch = qtest_get_arch();
@@ -453,6 +491,8 @@ int main(int argc, char **argv)
qtest_add_func("/ide/bmdma/long_prdt", test_bmdma_long_prdt);
qtest_add_func("/ide/bmdma/teardown", test_bmdma_teardown);
+ qtest_add_func("/ide/flush", test_flush);
+
ret = g_test_run();
/* Cleanup */
This checks in particular that BSY is set while the flush request is in flight. Signed-off-by: Kevin Wolf <kwolf@redhat.com> --- tests/ide-test.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+)