Re: [Qemu-devel] [PATCH v2 7/8] qtest/ahci: add qcow2 support to ahci-test

[Kevin Wolf <kwolf@redhat.com>]

Am 26.02.2015 um 00:06 hat John Snow geschrieben:
> This will enable the testing of high offsets without
> wasting a lot of disk space, and does not impact the
> previous tests.
> 
> mkimg and mkqcow2 are added to libqos for other tests.
> 
> Signed-off-by: John Snow <jsnow@redhat.com>
> ---
>  tests/Makefile        |  1 +
>  tests/ahci-test.c     | 16 ++++++----------
>  tests/libqos/libqos.c | 37 +++++++++++++++++++++++++++++++++++++
>  tests/libqos/libqos.h |  2 ++
>  4 files changed, 46 insertions(+), 10 deletions(-)
> 
> diff --git a/tests/Makefile b/tests/Makefile
> index 307035c..09ecb66 100644
> --- a/tests/Makefile
> +++ b/tests/Makefile
> @@ -413,6 +413,7 @@ GCOV_OPTIONS = -n $(if $(V),-f,)
>  $(patsubst %, check-qtest-%, $(QTEST_TARGETS)): check-qtest-%: $(check-qtest-y)
>  	$(if $(CONFIG_GCOV),@rm -f *.gcda */*.gcda */*/*.gcda */*/*/*.gcda,)
>  	$(call quiet-command,QTEST_QEMU_BINARY=$*-softmmu/qemu-system-$* \
> +		QTEST_QEMU_IMG=qemu-img$(EXESUF) \
>  		MALLOC_PERTURB_=$${MALLOC_PERTURB_:-$$((RANDOM % 255 + 1))} \
>  		gtester $(GTESTER_OPTIONS) -m=$(SPEED) $(check-qtest-$*-y),"GTESTER $@")
>  	$(if $(CONFIG_GCOV),@for f in $(gcov-files-$*-y); do \
> diff --git a/tests/ahci-test.c b/tests/ahci-test.c
> index cf0b98b..3f93c15 100644
> --- a/tests/ahci-test.c
> +++ b/tests/ahci-test.c
> @@ -39,8 +39,8 @@
>  #include "hw/pci/pci_ids.h"
>  #include "hw/pci/pci_regs.h"
>  
> -/* Test-specific defines. */
> -#define TEST_IMAGE_SIZE    (64 * 1024 * 1024)
> +/* Test-specific defines -- in MiB */
> +#define TEST_IMAGE_SIZE_MB (200 * 1024)
>  
>  /*** Globals ***/
>  static char tmp_path[] = "/tmp/qtest.XXXXXX";
> @@ -81,7 +81,7 @@ static AHCIQState *ahci_boot(void)
>      s = g_malloc0(sizeof(AHCIQState));
>  
>      cli = "-drive if=none,id=drive0,file=%s,cache=writeback,serial=%s"
> -        ",format=raw"
> +        ",format=qcow2"
>          " -M q35 "
>          "-device ide-hd,drive=drive0 "
>          "-global ide-hd.ver=%s";
> @@ -1051,7 +1051,6 @@ static void create_ahci_io_test(enum IOMode type, enum AddrMode addr,
>  int main(int argc, char **argv)
>  {
>      const char *arch;
> -    int fd;
>      int ret;
>      int c;
>      int i, j, k;
> @@ -1088,12 +1087,9 @@ int main(int argc, char **argv)
>          return 0;
>      }
>  
> -    /* Create a temporary raw image */
> -    fd = mkstemp(tmp_path);
> -    g_assert(fd >= 0);
> -    ret = ftruncate(fd, TEST_IMAGE_SIZE);
> -    g_assert(ret == 0);
> -    close(fd);
> +    /* Create a temporary qcow2 image */
> +    close(mkstemp(tmp_path));
> +    mkqcow2(tmp_path, TEST_IMAGE_SIZE_MB);
>  
>      /* Run the tests */
>      qtest_add_func("/ahci/sanity",     test_sanity);
> diff --git a/tests/libqos/libqos.c b/tests/libqos/libqos.c
> index bc8beb2..c825486 100644
> --- a/tests/libqos/libqos.c
> +++ b/tests/libqos/libqos.c
> @@ -61,3 +61,40 @@ void qtest_shutdown(QOSState *qs)
>      qtest_quit(qs->qts);
>      g_free(qs);
>  }
> +
> +void mkimg(const char *file, const char *fmt, unsigned size_mb)
> +{
> +    gchar *cli;
> +    bool ret;
> +    int rc;
> +    GError *err = NULL;
> +    char *qemu_img_path;
> +    gchar *out, *out2;
> +
> +    qemu_img_path = getenv("QTEST_QEMU_IMG");
> +    assert(qemu_img_path);
> +
> +    cli = g_strdup_printf("./%s create -f %s %s %uM", qemu_img_path,
> +                          fmt, file, size_mb);
> +    ret = g_spawn_command_line_sync(cli, &out, &out2, &rc, &err);
> +    if (err) {
> +        fprintf(stderr, "%s\n", err->message);
> +        g_error_free(err);
> +    }
> +    g_assert(ret && !err);
> +
> +    ret = g_spawn_check_exit_status(rc, &err);

This function only exists since glib 2.34. Dropping the following
patches from the queue:

pick 23134a5 qtest/ahci: add qcow2 support to ahci-test
pick 6ca5609 qtest/ahci: test different disk sectors
pick e2f0dee qtest/ahci: Add simple flush test
pick 396491b qtest/ahci: Allow override of default CLI options
pick eb8c8bd libqtest: add qmp_eventwait
pick 398bfc3 libqtest: add qmp_async
pick d3f77d1 libqos: add blkdebug_prepare_script
pick d628e51 qtest/ahci: add flush retry test

This is patch 7 and 8 from this series and the complete series "ahci:
rerror/werror=stop resume tests", which seems to depend on them.

Kevin