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From d1c34ff41de0ece966991adb6aef6f2bce2ccfc4 Mon Sep 17 00:00:00 2001
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From: Kevin Wolf <kwolf@redhat.com>
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Date: Wed, 10 Sep 2014 11:06:08 +0200
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Subject: [PATCH 09/12] ide-test: Add FLUSH CACHE test case
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Message-id: <1410347169-4368-3-git-send-email-kwolf@redhat.com>
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Patchwork-id: 60954
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O-Subject: [RHEL-7.1 qemu-kvm PATCH 2/3] ide-test: Add FLUSH CACHE test case
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Bugzilla: 1123372
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RH-Acked-by: Fam Zheng <famz@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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This checks in particular that BSY is set while the flush request is in
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flight.
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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(cherry picked from commit bd07684aacfb61668ae2c25b7dd00b64f3d7c7f3)
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RHEL: Whitelist the blkdebug driver so that the new qtest can succeed.
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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 redhat/qemu-kvm.spec.template |    4 ++--
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 tests/ide-test.c              |   40 ++++++++++++++++++++++++++++++++++++++++
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 2 files changed, 42 insertions(+), 2 deletions(-)
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diff --git a/tests/ide-test.c b/tests/ide-test.c
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index ac59259..739d2bf 100644
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--- a/tests/ide-test.c
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+++ b/tests/ide-test.c
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@@ -77,6 +77,7 @@ enum {
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 enum {
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     CMD_READ_DMA    = 0xc8,
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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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     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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 }
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+static void test_flush(void)
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+{
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+    uint8_t data;
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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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+    ide_test_quit();
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+}
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+
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 int main(int argc, char **argv)
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 {
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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/teardown", test_bmdma_teardown);
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+    qtest_add_func("/ide/flush", test_flush);
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+
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     ret = g_test_run();
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     /* Cleanup */
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-- 
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1.7.1
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