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[Qemu-devel] [PATCH v2 4/4] ide-test: Add FLUSH CACHE test case
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PATCH v2 4/4] ide-test: Add FLUSH CACHE test case |
Date: |
Wed, 5 Jun 2013 15:17:58 +0200 |
This checks in particular that BSY is set while the flush request is in
flight.
Signed-off-by: Kevin Wolf <address@hidden>
---
tests/ide-test.c | 40 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/tests/ide-test.c b/tests/ide-test.c
index 1c31a2e..828e71a 100644
--- a/tests/ide-test.c
+++ b/tests/ide-test.c
@@ -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 */
--
1.8.1.4
- [Qemu-devel] [PATCH v2 0/4] ide: Set BSY bit during FLUSH, Kevin Wolf, 2013/06/05
- [Qemu-devel] [PATCH v2 3/4] ide: Set BSY bit during FLUSH, Kevin Wolf, 2013/06/05
- [Qemu-devel] [PATCH v2 1/4] blkdebug: Add BLKDBG_FLUSH_TO_OS/DISK events, Kevin Wolf, 2013/06/05
- [Qemu-devel] [PATCH v2 2/4] ide-test: Add enum value for DEV, Kevin Wolf, 2013/06/05
- [Qemu-devel] [PATCH v2 4/4] ide-test: Add FLUSH CACHE test case,
Kevin Wolf <=
- Re: [Qemu-devel] [PATCH v2 0/4] ide: Set BSY bit during FLUSH, Stefan Hajnoczi, 2013/06/06
- Re: [Qemu-devel] [PATCH v2 0/4] ide: Set BSY bit during FLUSH, Stefan Hajnoczi, 2013/06/06