Re: [Qemu-devel] [PATCH v2 3/3] tests: enable virtio tests on SPAPR

[Greg Kurz <groug@kaod.org>]

On Fri, 30 Sep 2016 16:19:12 +0200
Laurent Vivier <lvivier@redhat.com> wrote:

> but disable MSI-X tests on SPAPR as we can't check the result
> (the memory region used on PC is not readable on SPAPR).
> 
> Signed-off-by: Laurent Vivier <lvivier@redhat.com>
> ---
>  tests/Makefile.include    |  3 ++-
>  tests/libqos/virtio-pci.c | 26 ++++++++++++++++++++++++--
>  tests/virtio-9p-test.c    | 12 +++++++++++-
>  tests/virtio-blk-test.c   | 25 ++++++++++++++++++++-----
>  tests/virtio-net-test.c   | 18 ++++++++++++++++--
>  tests/virtio-rng-test.c   |  7 ++++++-
>  tests/virtio-scsi-test.c  | 12 +++++++++++-
>  7 files changed, 90 insertions(+), 13 deletions(-)
> 
> diff --git a/tests/Makefile.include b/tests/Makefile.include
> index c46a32d..1e4a3d5 100644
> --- a/tests/Makefile.include
> +++ b/tests/Makefile.include
> @@ -278,6 +278,7 @@ check-qtest-ppc64-y += tests/usb-hcd-uhci-test$(EXESUF)
>  gcov-files-ppc64-y += hw/usb/hcd-uhci.c
>  check-qtest-ppc64-y += tests/usb-hcd-xhci-test$(EXESUF)
>  gcov-files-ppc64-y += hw/usb/hcd-xhci.c
> +check-qtest-ppc64-y += $(check-qtest-virtio-y)
>  
>  check-qtest-sh4-y = tests/endianness-test$(EXESUF)
>  
> @@ -604,7 +605,7 @@ libqos-pc-obj-y += tests/libqos/ahci.o
>  libqos-omap-obj-y = $(libqos-obj-y) tests/libqos/i2c-omap.o
>  libqos-imx-obj-y = $(libqos-obj-y) tests/libqos/i2c-imx.o
>  libqos-usb-obj-y = $(libqos-spapr-obj-y) $(libqos-pc-obj-y) tests/libqos/usb.o
> -libqos-virtio-obj-y = $(libqos-pc-obj-y) tests/libqos/virtio.o tests/libqos/virtio-pci.o tests/libqos/virtio-mmio.o tests/libqos/malloc-generic.o
> +libqos-virtio-obj-y = $(libqos-spapr-obj-y) $(libqos-pc-obj-y) tests/libqos/virtio.o tests/libqos/virtio-pci.o tests/libqos/virtio-mmio.o tests/libqos/malloc-generic.o
>  
>  tests/device-introspect-test$(EXESUF): tests/device-introspect-test.o
>  tests/rtc-test$(EXESUF): tests/rtc-test.o
> diff --git a/tests/libqos/virtio-pci.c b/tests/libqos/virtio-pci.c
> index 6e005c1..bf775fa 100644
> --- a/tests/libqos/virtio-pci.c
> +++ b/tests/libqos/virtio-pci.c
> @@ -68,16 +68,38 @@ static uint8_t qvirtio_pci_config_readb(QVirtioDevice *d, uint64_t addr)
>      return qpci_io_readb(dev->pdev, (void *)(uintptr_t)addr);
>  }
>  
> +/* PCI is always read in little-endian order
> + * but virtio ( < 1.0) is in guest order
> + * so with a big-endian guest the order has been reversed,
> + * reverse it again
> + * virtio-1.0 is always little-endian, like PCI, but as it
> + * is not implemented in libqos, we don't manage this case.
> + */
> +
>  static uint16_t qvirtio_pci_config_readw(QVirtioDevice *d, uint64_t addr)
>  {
>      QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
> -    return qpci_io_readw(dev->pdev, (void *)(uintptr_t)addr);
> +    uint16_t value;
> +
> +    value = qpci_io_readw(dev->pdev, (void *)(uintptr_t)addr);
> +    /* FIXME: don't swap with virtio-1.0 */
> +    if (target_big_endian()) {
> +        value = bswap16(value);
> +    }
> +    return value;
>  }
>  
>  static uint32_t qvirtio_pci_config_readl(QVirtioDevice *d, uint64_t addr)
>  {
>      QVirtioPCIDevice *dev = (QVirtioPCIDevice *)d;
> -    return qpci_io_readl(dev->pdev, (void *)(uintptr_t)addr);
> +    uint32_t value;
> +
> +    value = qpci_io_readl(dev->pdev, (void *)(uintptr_t)addr);
> +    /* FIXME: don't swap with virtio-1.0 */
> +    if (target_big_endian()) {
> +        value = bswap32(value);
> +    }
> +    return value;
>  }
>  
>  static uint64_t qvirtio_pci_config_readq(QVirtioDevice *d, uint64_t addr)
> diff --git a/tests/virtio-9p-test.c b/tests/virtio-9p-test.c
> index 7698014..9adb58f 100644
> --- a/tests/virtio-9p-test.c
> +++ b/tests/virtio-9p-test.c
> @@ -11,6 +11,7 @@
>  #include "libqtest.h"
>  #include "qemu-common.h"
>  #include "libqos/libqos-pc.h"
> +#include "libqos/libqos-spapr.h"
>  #include "libqos/virtio.h"
>  #include "libqos/virtio-pci.h"
>  #include "standard-headers/linux/virtio_ids.h"
> @@ -22,12 +23,21 @@ static char *test_share;
>  
>  static QOSState *qvirtio_9p_start(void)
>  {
> +    const char *arch = qtest_get_arch();
>      test_share = g_strdup("/tmp/qtest.XXXXXX");
>      g_assert_nonnull(mkdtemp(test_share));
>      const char *cmd = "-fsdev local,id=fsdev0,security_model=none,path=%s "
>                        "-device virtio-9p-pci,fsdev=fsdev0,mount_tag=%s";
>  
> -    return qtest_pc_boot(cmd, test_share, mount_tag);
> +    if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
> +        return qtest_pc_boot(cmd, test_share, mount_tag);
> +    }
> +    if (strcmp(arch, "ppc64") == 0) {
> +        return qtest_spapr_boot(cmd, test_share, mount_tag);
> +    }
> +
> +    g_printerr("virtio-9p tests are only available on x86 or ppc64\n");
> +    exit(EXIT_FAILURE);
>  }
>  

According to your remarks and John's answer, I agree that this is ok.
A one-size-fits-all API may be interesting, but this is definitely
another work and it shouldn't prevent this patchset from being applied.

>  static void qvirtio_9p_stop(QOSState *qs)
> diff --git a/tests/virtio-blk-test.c b/tests/virtio-blk-test.c
> index 96d0125..b4494c9 100644
> --- a/tests/virtio-blk-test.c
> +++ b/tests/virtio-blk-test.c
> @@ -11,6 +11,7 @@
>  #include "qemu/osdep.h"
>  #include "libqtest.h"
>  #include "libqos/libqos-pc.h"
> +#include "libqos/libqos-spapr.h"
>  #include "libqos/virtio.h"
>  #include "libqos/virtio-pci.h"
>  #include "libqos/virtio-mmio.h"
> @@ -59,6 +60,7 @@ static char *drive_create(void)
>  static QOSState *pci_test_start(void)
>  {
>      QOSState *qs;
> +    const char *arch = qtest_get_arch();
>      char *tmp_path;
>      const char *cmd = "-drive if=none,id=drive0,file=%s,format=raw "
>                        "-drive if=none,id=drive1,file=/dev/null,format=raw "
> @@ -67,7 +69,14 @@ static QOSState *pci_test_start(void)
>  
>      tmp_path = drive_create();
>  
> -    qs = qtest_pc_boot(cmd, tmp_path, PCI_SLOT, PCI_FN);
> +    if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
> +        qs = qtest_pc_boot(cmd, tmp_path, PCI_SLOT, PCI_FN);
> +    } else if (strcmp(arch, "ppc64") == 0) {
> +        qs = qtest_spapr_boot(cmd, tmp_path, PCI_SLOT, PCI_FN);
> +    } else {
> +        g_printerr("virtio-blk tests are only available on x86 or ppc64\n");
> +        exit(EXIT_FAILURE);
> +    }
>      unlink(tmp_path);
>      g_free(tmp_path);
>      return qs;
> @@ -671,6 +680,7 @@ static void pci_hotplug(void)
>  {
>      QVirtioPCIDevice *dev;
>      QOSState *qs;
> +    const char *arch = qtest_get_arch();
>  
>      qs = pci_test_start();
>  
> @@ -684,7 +694,9 @@ static void pci_hotplug(void)
>      g_free(dev);
>  
>      /* unplug secondary disk */
> -    qpci_unplug_acpi_device_test("drv1", PCI_SLOT_HP);
> +    if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
> +        qpci_unplug_acpi_device_test("drv1", PCI_SLOT_HP);
> +    }
>      qtest_shutdown(qs);
>  }
>  
> @@ -735,12 +747,15 @@ int main(int argc, char **argv)
>  
>      g_test_init(&argc, &argv, NULL);
>  
> -    if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
> +    if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0 ||
> +        strcmp(arch, "ppc") == 0 || strcmp(arch, "ppc64") == 0) {

Can this test actually run on a ppc compatible platform ?

Cheers.

--
Greg

>          qtest_add_func("/virtio/blk/pci/basic", pci_basic);
>          qtest_add_func("/virtio/blk/pci/indirect", pci_indirect);
>          qtest_add_func("/virtio/blk/pci/config", pci_config);
> -        qtest_add_func("/virtio/blk/pci/msix", pci_msix);
> -        qtest_add_func("/virtio/blk/pci/idx", pci_idx);
> +        if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
> +            qtest_add_func("/virtio/blk/pci/msix", pci_msix);
> +            qtest_add_func("/virtio/blk/pci/idx", pci_idx);
> +        }
>          qtest_add_func("/virtio/blk/pci/hotplug", pci_hotplug);
>      } else if (strcmp(arch, "arm") == 0) {
>          qtest_add_func("/virtio/blk/mmio/basic", mmio_basic);
> diff --git a/tests/virtio-net-test.c b/tests/virtio-net-test.c
> index 13bb889..af9f99e 100644
> --- a/tests/virtio-net-test.c
> +++ b/tests/virtio-net-test.c
> @@ -13,6 +13,7 @@
>  #include "qemu/sockets.h"
>  #include "qemu/iov.h"
>  #include "libqos/libqos-pc.h"
> +#include "libqos/libqos-spapr.h"
>  #include "libqos/virtio.h"
>  #include "libqos/virtio-pci.h"
>  #include "qemu/bswap.h"
> @@ -52,10 +53,18 @@ static QVirtioPCIDevice *virtio_net_pci_init(QPCIBus *bus, int slot)
>  
>  static QOSState *pci_test_start(int socket)
>  {
> +    const char *arch = qtest_get_arch();
>      const char *cmd = "-netdev socket,fd=%d,id=hs0 -device "
>                        "virtio-net-pci,netdev=hs0";
>  
> -    return qtest_pc_boot(cmd, socket);
> +    if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
> +        return qtest_pc_boot(cmd, socket);
> +    }
> +    if (strcmp(arch, "ppc64") == 0) {
> +        return qtest_spapr_boot(cmd, socket);
> +    }
> +    g_printerr("virtio-net tests are only available on x86 or ppc64\n");
> +    exit(EXIT_FAILURE);
>  }
>  
>  static void driver_init(const QVirtioBus *bus, QVirtioDevice *dev)
> @@ -235,10 +244,15 @@ static void pci_basic(gconstpointer data)
>  
>  static void hotplug(void)
>  {
> +    const char *arch = qtest_get_arch();
> +
>      qtest_start("-device virtio-net-pci");
>  
>      qpci_plug_device_test("virtio-net-pci", "net1", PCI_SLOT_HP, NULL);
> -    qpci_unplug_acpi_device_test("net1", PCI_SLOT_HP);
> +
> +    if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
> +        qpci_unplug_acpi_device_test("net1", PCI_SLOT_HP);
> +    }
>  
>      test_end();
>  }
> diff --git a/tests/virtio-rng-test.c b/tests/virtio-rng-test.c
> index e1b2640..dcecf77 100644
> --- a/tests/virtio-rng-test.c
> +++ b/tests/virtio-rng-test.c
> @@ -20,8 +20,13 @@ static void pci_nop(void)
>  
>  static void hotplug(void)
>  {
> +    const char *arch = qtest_get_arch();
> +
>      qpci_plug_device_test("virtio-rng-pci", "rng1", PCI_SLOT_HP, NULL);
> -    qpci_unplug_acpi_device_test("rng1", PCI_SLOT_HP);
> +
> +    if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
> +        qpci_unplug_acpi_device_test("rng1", PCI_SLOT_HP);
> +    }
>  }
>  
>  int main(int argc, char **argv)
> diff --git a/tests/virtio-scsi-test.c b/tests/virtio-scsi-test.c
> index 55ff064..249005b 100644
> --- a/tests/virtio-scsi-test.c
> +++ b/tests/virtio-scsi-test.c
> @@ -12,6 +12,7 @@
>  #include "libqtest.h"
>  #include "block/scsi.h"
>  #include "libqos/libqos-pc.h"
> +#include "libqos/libqos-spapr.h"
>  #include "libqos/virtio.h"
>  #include "libqos/virtio-pci.h"
>  #include "standard-headers/linux/virtio_ids.h"
> @@ -33,11 +34,20 @@ typedef struct {
>  
>  static QOSState *qvirtio_scsi_start(const char *extra_opts)
>  {
> +    const char *arch = qtest_get_arch();
>      const char *cmd = "-drive id=drv0,if=none,file=/dev/null,format=raw "
>                        "-device virtio-scsi-pci,id=vs0 "
>                        "-device scsi-hd,bus=vs0.0,drive=drv0 %s";
>  
> -    return qtest_pc_boot(cmd, extra_opts ? : "");
> +    if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
> +        return qtest_pc_boot(cmd, extra_opts ? : "");
> +    }
> +    if (strcmp(arch, "ppc64") == 0) {
> +        return qtest_spapr_boot(cmd, extra_opts ? : "");
> +    }
> +
> +    g_printerr("virtio-scsi tests are only available on x86 or ppc64\n");
> +    exit(EXIT_FAILURE);
>  }
>  
>  static void qvirtio_scsi_stop(QOSState *qs)