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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>
This commit is contained in:
Kevin Wolf 2013-06-05 15:17:58 +02:00 committed by Stefan Hajnoczi
parent f68ec8379e
commit bd07684aac
1 changed files with 40 additions and 0 deletions
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40
tests/ide-test.c
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@ -77,6 +77,7 @@ enum {
enum {
CMD_READ_DMA = 0xc8,
CMD_WRITE_DMA = 0xca,
CMD_FLUSH_CACHE = 0xe7,
CMD_IDENTIFY = 0xec,
CMDF_ABORT = 0x100,
@ -424,6 +425,43 @@ 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':'human-monitor-command', 'arguments': { "
"'command-line': 'qemu-io ide0-hd0 \"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':'human-monitor-command', 'arguments': { "
"'command-line': 'qemu-io ide0-hd0 \"resume A\"'} }");
/* Check registers */
data = inb(IDE_BASE + reg_device);
g_assert_cmpint(data & DEV, ==, 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();
@ -454,6 +492,8 @@ 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 */