[PATCH 0/4] iotests: fix failures with non-PCI machines

[PATCH 0/4] iotests: fix failures with non-PCI machines

[Laurent Vivier]

Tests are executed using virtio-*-pci even on a non PCI machine.

The problem can be easily fixed using the virtio aliases
(virtio-*), to run virtio-*-ccw on s390x and virtio-*-device on
m68k.

A first attempt was tried with virtio-*-ccw by detecting
the machine type, this series removes it to use the aliases that
are a cleaner approach.

Laurent Vivier (4):
  m68k: add the virtio devices aliases
  iotests: Revert "iotests: use -ccw on s390x for 040, 139, and 182"
  iotests: test m68k with the virt machine
  iotests: iothreads need ioeventfd

 blockdev.c                    |  6 +----
 softmmu/qdev-monitor.c        | 46 +++++++++++++++++++++++------------
 tests/qemu-iotests/040        |  2 +-
 tests/qemu-iotests/051        | 12 +--------
 tests/qemu-iotests/068        |  4 +--
 tests/qemu-iotests/093        |  3 +--
 tests/qemu-iotests/127        |  4 +--
 tests/qemu-iotests/139        |  9 ++-----
 tests/qemu-iotests/182        | 13 ++--------
 tests/qemu-iotests/238        |  4 +--
 tests/qemu-iotests/240        | 10 ++++----
 tests/qemu-iotests/256        |  2 ++
 tests/qemu-iotests/257        |  4 +--
 tests/qemu-iotests/307        |  4 +--
 tests/qemu-iotests/iotests.py | 10 ++++----
 tests/qemu-iotests/testenv.py |  1 +
 16 files changed, 58 insertions(+), 76 deletions(-)

-- 
2.30.2

[PATCH 1/4] m68k: add the virtio devices aliases

[Laurent Vivier]

Similarly to 5f629d943cb0 ("s390x: fix s390 virtio aliases"),
define the virtio aliases.

This allows to start machines with virtio devices without
knowledge of the implementation type.

For instance, we can use "-device virtio-scsi" on
m68k, s390x or PC, and the device will be
"virtio-scsi-device", "virtio-scsi-ccw" or "virtio-scsi-pci".

This already exists for s390x and -ccw interfaces, adds them
for m68k and MMIO (-device) interfaces.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 softmmu/qdev-monitor.c | 46 +++++++++++++++++++++++++++---------------
 1 file changed, 30 insertions(+), 16 deletions(-)

diff --git a/softmmu/qdev-monitor.c b/softmmu/qdev-monitor.c
index 8dc656becca9..262d38b8c01e 100644
--- a/softmmu/qdev-monitor.c
+++ b/softmmu/qdev-monitor.c
@@ -42,6 +42,8 @@
 #include "hw/qdev-properties.h"
 #include "hw/clock.h"
 
+#define QEMU_ARCH_NO_PCI (QEMU_ARCH_S390X | QEMU_ARCH_M68K)
+
 /*
  * Aliases were a bad idea from the start.  Let's keep them
  * from spreading further.
@@ -60,34 +62,46 @@ static const QDevAlias qdev_alias_table[] = {
     { "ES1370", "es1370" }, /* -soundhw name */
     { "ich9-ahci", "ahci" },
     { "lsi53c895a", "lsi" },
+    { "virtio-9p-device", "virtio-9p", QEMU_ARCH_M68K },
     { "virtio-9p-ccw", "virtio-9p", QEMU_ARCH_S390X },
-    { "virtio-9p-pci", "virtio-9p", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
+    { "virtio-9p-pci", "virtio-9p", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
+    { "virtio-balloon-device", "virtio-balloon", QEMU_ARCH_M68K },
     { "virtio-balloon-ccw", "virtio-balloon", QEMU_ARCH_S390X },
-    { "virtio-balloon-pci", "virtio-balloon",
-            QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
+    { "virtio-balloon-pci", "virtio-balloon", QEMU_ARCH_ALL &
+                                             ~QEMU_ARCH_NO_PCI },
+    { "virtio-blk-device", "virtio-blk", QEMU_ARCH_M68K },
     { "virtio-blk-ccw", "virtio-blk", QEMU_ARCH_S390X },
-    { "virtio-blk-pci", "virtio-blk", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
+    { "virtio-blk-pci", "virtio-blk", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
     { "virtio-gpu-ccw", "virtio-gpu", QEMU_ARCH_S390X },
-    { "virtio-gpu-pci", "virtio-gpu", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
+    { "virtio-gpu-device", "virtio-gpu", QEMU_ARCH_M68K },
+    { "virtio-gpu-pci", "virtio-gpu", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
+    { "virtio-input-host-device", "virtio-input-host", QEMU_ARCH_M68K },
     { "virtio-input-host-ccw", "virtio-input-host", QEMU_ARCH_S390X },
-    { "virtio-input-host-pci", "virtio-input-host",
-            QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
-    { "virtio-iommu-pci", "virtio-iommu", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
+    { "virtio-input-host-pci", "virtio-input-host", QEMU_ARCH_ALL &
+                                                   ~QEMU_ARCH_NO_PCI },
+    { "virtio-iommu-pci", "virtio-iommu", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
+    { "virtio-keyboard-device", "virtio-keyboard", QEMU_ARCH_M68K },
     { "virtio-keyboard-ccw", "virtio-keyboard", QEMU_ARCH_S390X },
-    { "virtio-keyboard-pci", "virtio-keyboard",
-            QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
+    { "virtio-keyboard-pci", "virtio-keyboard", QEMU_ARCH_ALL &
+                                               ~QEMU_ARCH_NO_PCI },
+    { "virtio-mouse-device", "virtio-mouse", QEMU_ARCH_M68K },
     { "virtio-mouse-ccw", "virtio-mouse", QEMU_ARCH_S390X },
-    { "virtio-mouse-pci", "virtio-mouse", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
+    { "virtio-mouse-pci", "virtio-mouse", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
+    { "virtio-net-device", "virtio-net", QEMU_ARCH_M68K },
     { "virtio-net-ccw", "virtio-net", QEMU_ARCH_S390X },
-    { "virtio-net-pci", "virtio-net", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
+    { "virtio-net-pci", "virtio-net", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
+    { "virtio-rng-device", "virtio-rng", QEMU_ARCH_M68K },
     { "virtio-rng-ccw", "virtio-rng", QEMU_ARCH_S390X },
-    { "virtio-rng-pci", "virtio-rng", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
+    { "virtio-rng-pci", "virtio-rng", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
+    { "virtio-scsi-device", "virtio-scsi", QEMU_ARCH_M68K },
     { "virtio-scsi-ccw", "virtio-scsi", QEMU_ARCH_S390X },
-    { "virtio-scsi-pci", "virtio-scsi", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
+    { "virtio-scsi-pci", "virtio-scsi", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
+    { "virtio-serial-device", "virtio-serial", QEMU_ARCH_M68K },
     { "virtio-serial-ccw", "virtio-serial", QEMU_ARCH_S390X },
-    { "virtio-serial-pci", "virtio-serial", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
+    { "virtio-serial-pci", "virtio-serial", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI},
+    { "virtio-tablet-device", "virtio-tablet", QEMU_ARCH_M68K },
     { "virtio-tablet-ccw", "virtio-tablet", QEMU_ARCH_S390X },
-    { "virtio-tablet-pci", "virtio-tablet", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
+    { "virtio-tablet-pci", "virtio-tablet", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
     { }
 };
 
-- 
2.30.2

Re: [PATCH 1/4] m68k: add the virtio devices aliases

[Philippe Mathieu-Daudé]

On 3/18/21 11:39 PM, Laurent Vivier wrote:
> Similarly to 5f629d943cb0 ("s390x: fix s390 virtio aliases"),
> define the virtio aliases.
> 
> This allows to start machines with virtio devices without
> knowledge of the implementation type.
> 
> For instance, we can use "-device virtio-scsi" on
> m68k, s390x or PC, and the device will be

+"respectively"

> "virtio-scsi-device", "virtio-scsi-ccw" or "virtio-scsi-pci".
> 
> This already exists for s390x and -ccw interfaces, adds them

"add"?

> for m68k and MMIO (-device) interfaces.
> 
> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
> ---
>  softmmu/qdev-monitor.c | 46 +++++++++++++++++++++++++++---------------
>  1 file changed, 30 insertions(+), 16 deletions(-)
> 
> diff --git a/softmmu/qdev-monitor.c b/softmmu/qdev-monitor.c
> index 8dc656becca9..262d38b8c01e 100644
> --- a/softmmu/qdev-monitor.c
> +++ b/softmmu/qdev-monitor.c
> @@ -42,6 +42,8 @@
>  #include "hw/qdev-properties.h"
>  #include "hw/clock.h"
>  
> +#define QEMU_ARCH_NO_PCI (QEMU_ARCH_S390X | QEMU_ARCH_M68K)
> +
>  /*
>   * Aliases were a bad idea from the start.  Let's keep them
>   * from spreading further.
> @@ -60,34 +62,46 @@ static const QDevAlias qdev_alias_table[] = {
>      { "ES1370", "es1370" }, /* -soundhw name */
>      { "ich9-ahci", "ahci" },
>      { "lsi53c895a", "lsi" },
> +    { "virtio-9p-device", "virtio-9p", QEMU_ARCH_M68K },
>      { "virtio-9p-ccw", "virtio-9p", QEMU_ARCH_S390X },
> -    { "virtio-9p-pci", "virtio-9p", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
> +    { "virtio-9p-pci", "virtio-9p", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },

TIL QEMU_ARCH_NO_PCI :)

> +    { "virtio-balloon-device", "virtio-balloon", QEMU_ARCH_M68K },
>      { "virtio-balloon-ccw", "virtio-balloon", QEMU_ARCH_S390X },
> -    { "virtio-balloon-pci", "virtio-balloon",
> -            QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
> +    { "virtio-balloon-pci", "virtio-balloon", QEMU_ARCH_ALL &
> +                                             ~QEMU_ARCH_NO_PCI },
> +    { "virtio-blk-device", "virtio-blk", QEMU_ARCH_M68K },
>      { "virtio-blk-ccw", "virtio-blk", QEMU_ARCH_S390X },
> -    { "virtio-blk-pci", "virtio-blk", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
> +    { "virtio-blk-pci", "virtio-blk", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
>      { "virtio-gpu-ccw", "virtio-gpu", QEMU_ARCH_S390X },
> -    { "virtio-gpu-pci", "virtio-gpu", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
> +    { "virtio-gpu-device", "virtio-gpu", QEMU_ARCH_M68K },
> +    { "virtio-gpu-pci", "virtio-gpu", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
> +    { "virtio-input-host-device", "virtio-input-host", QEMU_ARCH_M68K },
>      { "virtio-input-host-ccw", "virtio-input-host", QEMU_ARCH_S390X },
> -    { "virtio-input-host-pci", "virtio-input-host",
> -            QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
> -    { "virtio-iommu-pci", "virtio-iommu", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
> +    { "virtio-input-host-pci", "virtio-input-host", QEMU_ARCH_ALL &
> +                                                   ~QEMU_ARCH_NO_PCI },
> +    { "virtio-iommu-pci", "virtio-iommu", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
> +    { "virtio-keyboard-device", "virtio-keyboard", QEMU_ARCH_M68K },
>      { "virtio-keyboard-ccw", "virtio-keyboard", QEMU_ARCH_S390X },
> -    { "virtio-keyboard-pci", "virtio-keyboard",
> -            QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
> +    { "virtio-keyboard-pci", "virtio-keyboard", QEMU_ARCH_ALL &
> +                                               ~QEMU_ARCH_NO_PCI },
> +    { "virtio-mouse-device", "virtio-mouse", QEMU_ARCH_M68K },
>      { "virtio-mouse-ccw", "virtio-mouse", QEMU_ARCH_S390X },
> -    { "virtio-mouse-pci", "virtio-mouse", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
> +    { "virtio-mouse-pci", "virtio-mouse", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
> +    { "virtio-net-device", "virtio-net", QEMU_ARCH_M68K },
>      { "virtio-net-ccw", "virtio-net", QEMU_ARCH_S390X },
> -    { "virtio-net-pci", "virtio-net", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
> +    { "virtio-net-pci", "virtio-net", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
> +    { "virtio-rng-device", "virtio-rng", QEMU_ARCH_M68K },
>      { "virtio-rng-ccw", "virtio-rng", QEMU_ARCH_S390X },
> -    { "virtio-rng-pci", "virtio-rng", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
> +    { "virtio-rng-pci", "virtio-rng", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
> +    { "virtio-scsi-device", "virtio-scsi", QEMU_ARCH_M68K },
>      { "virtio-scsi-ccw", "virtio-scsi", QEMU_ARCH_S390X },
> -    { "virtio-scsi-pci", "virtio-scsi", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
> +    { "virtio-scsi-pci", "virtio-scsi", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
> +    { "virtio-serial-device", "virtio-serial", QEMU_ARCH_M68K },
>      { "virtio-serial-ccw", "virtio-serial", QEMU_ARCH_S390X },
> -    { "virtio-serial-pci", "virtio-serial", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
> +    { "virtio-serial-pci", "virtio-serial", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI},
> +    { "virtio-tablet-device", "virtio-tablet", QEMU_ARCH_M68K },
>      { "virtio-tablet-ccw", "virtio-tablet", QEMU_ARCH_S390X },
> -    { "virtio-tablet-pci", "virtio-tablet", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
> +    { "virtio-tablet-pci", "virtio-tablet", QEMU_ARCH_ALL & ~QEMU_ARCH_NO_PCI },
>      { }
>  };

This could be easier to split this patch in 2:
1/ QEMU_ARCH_S390X -> QEMU_ARCH_NO_PCI
2/ complete QEMU_ARCH_M68K aliases

Regardless:
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

Re: [PATCH 1/4] m68k: add the virtio devices aliases

[Thomas Huth]

On 18/03/2021 23.39, Laurent Vivier wrote:
> Similarly to 5f629d943cb0 ("s390x: fix s390 virtio aliases"),
> define the virtio aliases.
> 
> This allows to start machines with virtio devices without
> knowledge of the implementation type.
> 
> For instance, we can use "-device virtio-scsi" on
> m68k, s390x or PC, and the device will be
> "virtio-scsi-device", "virtio-scsi-ccw" or "virtio-scsi-pci".
> 
> This already exists for s390x and -ccw interfaces, adds them
> for m68k and MMIO (-device) interfaces.
> 
> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
> ---
>   softmmu/qdev-monitor.c | 46 +++++++++++++++++++++++++++---------------
>   1 file changed, 30 insertions(+), 16 deletions(-)

With the typo mentioned by Philippe fixed:
Reviewed-by: Thomas Huth <thuth@redhat.com>

Re: [PATCH 1/4] m68k: add the virtio devices aliases

[Cornelia Huck]

On Thu, 18 Mar 2021 23:39:04 +0100
Laurent Vivier <laurent@vivier.eu> wrote:

> Similarly to 5f629d943cb0 ("s390x: fix s390 virtio aliases"),
> define the virtio aliases.
> 
> This allows to start machines with virtio devices without
> knowledge of the implementation type.
> 
> For instance, we can use "-device virtio-scsi" on
> m68k, s390x or PC, and the device will be
> "virtio-scsi-device", "virtio-scsi-ccw" or "virtio-scsi-pci".
> 
> This already exists for s390x and -ccw interfaces, adds them
> for m68k and MMIO (-device) interfaces.
> 
> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
> ---
>  softmmu/qdev-monitor.c | 46 +++++++++++++++++++++++++++---------------
>  1 file changed, 30 insertions(+), 16 deletions(-)
> 
> diff --git a/softmmu/qdev-monitor.c b/softmmu/qdev-monitor.c
> index 8dc656becca9..262d38b8c01e 100644
> --- a/softmmu/qdev-monitor.c
> +++ b/softmmu/qdev-monitor.c
> @@ -42,6 +42,8 @@
>  #include "hw/qdev-properties.h"
>  #include "hw/clock.h"
>  
> +#define QEMU_ARCH_NO_PCI (QEMU_ARCH_S390X | QEMU_ARCH_M68K)

The name of the #define is a tad misleading (we do have virtio-pci
devices on s390x, unlike in 2012, we just don't want the aliases to
point to them.) Maybe QEMU_ARCH_NONPCI_DEFAULT?

> +
>  /*
>   * Aliases were a bad idea from the start.  Let's keep them
>   * from spreading further.

Otherwise, LGTM.

Re: [PATCH 1/4] m68k: add the virtio devices aliases

[Laurent Vivier]

Le 19/03/2021 à 12:36, Cornelia Huck a écrit :
> On Thu, 18 Mar 2021 23:39:04 +0100
> Laurent Vivier <laurent@vivier.eu> wrote:
> 
>> Similarly to 5f629d943cb0 ("s390x: fix s390 virtio aliases"),
>> define the virtio aliases.
>>
>> This allows to start machines with virtio devices without
>> knowledge of the implementation type.
>>
>> For instance, we can use "-device virtio-scsi" on
>> m68k, s390x or PC, and the device will be
>> "virtio-scsi-device", "virtio-scsi-ccw" or "virtio-scsi-pci".
>>
>> This already exists for s390x and -ccw interfaces, adds them
>> for m68k and MMIO (-device) interfaces.
>>
>> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
>> ---
>>  softmmu/qdev-monitor.c | 46 +++++++++++++++++++++++++++---------------
>>  1 file changed, 30 insertions(+), 16 deletions(-)
>>
>> diff --git a/softmmu/qdev-monitor.c b/softmmu/qdev-monitor.c
>> index 8dc656becca9..262d38b8c01e 100644
>> --- a/softmmu/qdev-monitor.c
>> +++ b/softmmu/qdev-monitor.c
>> @@ -42,6 +42,8 @@
>>  #include "hw/qdev-properties.h"
>>  #include "hw/clock.h"
>>  
>> +#define QEMU_ARCH_NO_PCI (QEMU_ARCH_S390X | QEMU_ARCH_M68K)
> 
> The name of the #define is a tad misleading (we do have virtio-pci
> devices on s390x, unlike in 2012, we just don't want the aliases to
> point to them.) Maybe QEMU_ARCH_NONPCI_DEFAULT?

I have changed this patch to define QEMU_ARCH_VIRTIO_PCI with the list of archs with virtio-pci
devices, and QEMU_ARCH_VIRTIO_CCW and then QEMU_ARCH_VIRTIO_MMIO

> 
>> +
>>  /*
>>   * Aliases were a bad idea from the start.  Let's keep them
>>   * from spreading further.
> 
> Otherwise, LGTM.
> 

Thanks,
Laurent

[PATCH 2/4] iotests: Revert "iotests: use -ccw on s390x for 040, 139, and 182"

[Laurent Vivier]

Commit f1d5516ab583 introduces a test in some iotests to check if
the machine is a s390-ssw-virtio and to select virtio-*-ccw rather
than virtio-*-pci.

We don't need that because QEMU already provides aliases to use the correct
virtio interface according to the machine type.

This patch removes all virtio-*-pci and virtio-*-ccw to use virtio-*
instead.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
cc: Cornelia Huck <cohuck@redhat.com>
---
 blockdev.c                    |  6 +-----
 tests/qemu-iotests/040        |  2 +-
 tests/qemu-iotests/051        | 12 +-----------
 tests/qemu-iotests/068        |  4 +---
 tests/qemu-iotests/093        |  3 +--
 tests/qemu-iotests/139        |  9 ++-------
 tests/qemu-iotests/182        | 13 ++-----------
 tests/qemu-iotests/238        |  4 +---
 tests/qemu-iotests/240        | 10 +++++-----
 tests/qemu-iotests/257        |  4 ++--
 tests/qemu-iotests/307        |  4 +---
 tests/qemu-iotests/iotests.py |  5 -----
 12 files changed, 18 insertions(+), 58 deletions(-)

diff --git a/blockdev.c b/blockdev.c
index 5cc7c7effe9f..64da5350e3ad 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -969,11 +969,7 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type,
         QemuOpts *devopts;
         devopts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
                                    &error_abort);
-        if (arch_type == QEMU_ARCH_S390X) {
-            qemu_opt_set(devopts, "driver", "virtio-blk-ccw", &error_abort);
-        } else {
-            qemu_opt_set(devopts, "driver", "virtio-blk-pci", &error_abort);
-        }
+        qemu_opt_set(devopts, "driver", "virtio-blk", &error_abort);
         qemu_opt_set(devopts, "drive", qdict_get_str(bs_opts, "id"),
                      &error_abort);
     }
diff --git a/tests/qemu-iotests/040 b/tests/qemu-iotests/040
index 336ff7c4f2ab..ba7cb34ce8cf 100755
--- a/tests/qemu-iotests/040
+++ b/tests/qemu-iotests/040
@@ -89,7 +89,7 @@ class TestSingleDrive(ImageCommitTestCase):
         qemu_io('-f', 'raw', '-c', 'write -P 0xab 0 524288', backing_img)
         qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0xef 524288 524288', mid_img)
         self.vm = iotests.VM().add_drive(test_img, "node-name=top,backing.node-name=mid,backing.backing.node-name=base", interface="none")
-        self.vm.add_device(iotests.get_virtio_scsi_device())
+        self.vm.add_device('virtio-scsi')
         self.vm.add_device("scsi-hd,id=scsi0,drive=drive0")
         self.vm.launch()
         self.has_quit = False
diff --git a/tests/qemu-iotests/051 b/tests/qemu-iotests/051
index 7cbd1415ce7b..00382cc55e25 100755
--- a/tests/qemu-iotests/051
+++ b/tests/qemu-iotests/051
@@ -119,17 +119,7 @@ echo
 echo === Device without drive ===
 echo
 
-case "$QEMU_DEFAULT_MACHINE" in
-  s390-ccw-virtio)
-      virtio_scsi=virtio-scsi-ccw
-      ;;
-  *)
-      virtio_scsi=virtio-scsi-pci
-      ;;
-esac
-
-run_qemu -device $virtio_scsi -device scsi-hd |
-    sed -e "s/$virtio_scsi/VIRTIO_SCSI/"
+run_qemu -device virtio-scsi -device scsi-hd
 
 echo
 echo === Overriding backing file ===
diff --git a/tests/qemu-iotests/068 b/tests/qemu-iotests/068
index 03e03508a6e2..54e49c8ffab1 100755
--- a/tests/qemu-iotests/068
+++ b/tests/qemu-iotests/068
@@ -49,11 +49,9 @@ IMG_SIZE=128K
 case "$QEMU_DEFAULT_MACHINE" in
   s390-ccw-virtio)
       platform_parm="-no-shutdown"
-      hba=virtio-scsi-ccw
       ;;
   *)
       platform_parm=""
-      hba=virtio-scsi-pci
       ;;
 esac
 
@@ -61,7 +59,7 @@ _qemu()
 {
     $QEMU $platform_parm -nographic -monitor stdio -serial none \
           -drive if=none,id=drive0,file="$TEST_IMG",format="$IMGFMT" \
-          -device $hba,id=hba0 \
+          -device virtio-scsi,id=hba0 \
           -device scsi-hd,drive=drive0 \
           "$@" |\
     _filter_qemu | _filter_hmp
diff --git a/tests/qemu-iotests/093 b/tests/qemu-iotests/093
index 7745cb04b611..93274dc8cbde 100755
--- a/tests/qemu-iotests/093
+++ b/tests/qemu-iotests/093
@@ -371,8 +371,7 @@ class ThrottleTestGroupNames(iotests.QMPTestCase):
 class ThrottleTestRemovableMedia(iotests.QMPTestCase):
     def setUp(self):
         self.vm = iotests.VM()
-        self.vm.add_device("{},id=virtio-scsi".format(
-            iotests.get_virtio_scsi_device()))
+        self.vm.add_device("{},id=virtio-scsi".format('virtio-scsi'))
         self.vm.launch()
 
     def tearDown(self):
diff --git a/tests/qemu-iotests/139 b/tests/qemu-iotests/139
index e79b3c21fdce..178b1ee230ca 100755
--- a/tests/qemu-iotests/139
+++ b/tests/qemu-iotests/139
@@ -26,18 +26,13 @@ import time
 
 base_img = os.path.join(iotests.test_dir, 'base.img')
 new_img = os.path.join(iotests.test_dir, 'new.img')
-if iotests.qemu_default_machine == 's390-ccw-virtio':
-    default_virtio_blk = 'virtio-blk-ccw'
-else:
-    default_virtio_blk = 'virtio-blk-pci'
 
 class TestBlockdevDel(iotests.QMPTestCase):
 
     def setUp(self):
         iotests.qemu_img('create', '-f', iotests.imgfmt, base_img, '1M')
         self.vm = iotests.VM()
-        self.vm.add_device("{},id=virtio-scsi".format(
-            iotests.get_virtio_scsi_device()))
+        self.vm.add_device("{},id=virtio-scsi".format('virtio-scsi'))
         self.vm.launch()
 
     def tearDown(self):
@@ -93,7 +88,7 @@ class TestBlockdevDel(iotests.QMPTestCase):
         self.checkBlockDriverState(node, expect_error)
 
     # Add a device model
-    def addDeviceModel(self, device, backend, driver = default_virtio_blk):
+    def addDeviceModel(self, device, backend, driver = 'virtio-blk'):
         result = self.vm.qmp('device_add', id = device,
                              driver = driver, drive = backend)
         self.assert_qmp(result, 'return', {})
diff --git a/tests/qemu-iotests/182 b/tests/qemu-iotests/182
index 55a0384c0873..fcd1d796ebd0 100755
--- a/tests/qemu-iotests/182
+++ b/tests/qemu-iotests/182
@@ -46,26 +46,17 @@ _supported_proto file
 
 size=32M
 
-case "$QEMU_DEFAULT_MACHINE" in
-  s390-ccw-virtio)
-      virtioblk=virtio-blk-ccw
-      ;;
-  *)
-      virtioblk=virtio-blk-pci
-      ;;
-esac
-
 _make_test_img $size
 
 echo "Starting QEMU"
 _launch_qemu -drive file=$TEST_IMG,if=none,id=drive0,file.locking=on \
-    -device $virtioblk,drive=drive0
+    -device virtio-blk,drive=drive0
 
 echo
 echo "Starting a second QEMU using the same image should fail"
 echo 'quit' | $QEMU -nographic -monitor stdio \
     -drive file=$TEST_IMG,if=none,id=drive0,file.locking=on \
-    -device $virtioblk,drive=drive0 2>&1 | _filter_testdir 2>&1 |
+    -device virtio-blk,drive=drive0 2>&1 | _filter_testdir 2>&1 |
     _filter_qemu |
     sed -e '/falling back to POSIX file/d' \
         -e '/locks can be lost unexpectedly/d'
diff --git a/tests/qemu-iotests/238 b/tests/qemu-iotests/238
index 8a10af57f17c..38bd3744e68c 100755
--- a/tests/qemu-iotests/238
+++ b/tests/qemu-iotests/238
@@ -26,14 +26,12 @@ from iotests import log
 
 iotests.script_initialize()
 
-virtio_scsi_device = iotests.get_virtio_scsi_device()
-
 vm = iotests.VM()
 vm.launch()
 
 log(vm.qmp('blockdev-add', node_name='hd0', driver='null-co', read_zeroes=True))
 log(vm.qmp('object-add', qom_type='iothread', id='iothread0'))
-log(vm.qmp('device_add', id='scsi0', driver=virtio_scsi_device, iothread='iothread0'))
+log(vm.qmp('device_add', id='scsi0', driver='virtio-scsi', iothread='iothread0'))
 log(vm.qmp('device_add', id='scsi-hd0', driver='scsi-hd', drive='hd0'))
 log(vm.qmp('block_set_io_throttle', id='scsi-hd0', bps=0, bps_rd=0, bps_wr=0,
            iops=1000, iops_rd=0, iops_wr=0, conv_keys=False))
diff --git a/tests/qemu-iotests/240 b/tests/qemu-iotests/240
index ab077f4ceb01..9b281e1dc036 100755
--- a/tests/qemu-iotests/240
+++ b/tests/qemu-iotests/240
@@ -42,7 +42,7 @@ class TestCase(iotests.QMPTestCase):
         iotests.log('==Unplug a SCSI disk and then plug it again==')
         self.vm.qmp_log('blockdev-add', driver='null-co', read_zeroes=True, node_name='hd0')
         self.vm.qmp_log('object-add', qom_type='iothread', id="iothread0")
-        self.vm.qmp_log('device_add', id='scsi0', driver=iotests.get_virtio_scsi_device(), iothread='iothread0', filters=[iotests.filter_qmp_virtio_scsi])
+        self.vm.qmp_log('device_add', id='scsi0', driver='virtio-scsi', iothread='iothread0', filters=[iotests.filter_qmp_virtio_scsi])
         self.vm.qmp_log('device_add', id='scsi-hd0', driver='scsi-hd', drive='hd0')
         self.vm.qmp_log('device_del', id='scsi-hd0')
         self.vm.event_wait('DEVICE_DELETED')
@@ -55,7 +55,7 @@ class TestCase(iotests.QMPTestCase):
         iotests.log('==Attach two SCSI disks using the same block device and the same iothread==')
         self.vm.qmp_log('blockdev-add', driver='null-co', read_zeroes=True, node_name='hd0', read_only=True)
         self.vm.qmp_log('object-add', qom_type='iothread', id="iothread0")
-        self.vm.qmp_log('device_add', id='scsi0', driver=iotests.get_virtio_scsi_device(), iothread='iothread0', filters=[iotests.filter_qmp_virtio_scsi])
+        self.vm.qmp_log('device_add', id='scsi0', driver='virtio-scsi', iothread='iothread0', filters=[iotests.filter_qmp_virtio_scsi])
 
         self.vm.qmp_log('device_add', id='scsi-hd0', driver='scsi-hd', drive='hd0')
         self.vm.qmp_log('device_add', id='scsi-hd1', driver='scsi-hd', drive='hd0')
@@ -73,8 +73,8 @@ class TestCase(iotests.QMPTestCase):
         self.vm.qmp_log('object-add', qom_type='iothread', id="iothread0")
         self.vm.qmp_log('object-add', qom_type='iothread', id="iothread1")
 
-        self.vm.qmp_log('device_add', id='scsi0', driver=iotests.get_virtio_scsi_device(), iothread='iothread0', filters=[iotests.filter_qmp_virtio_scsi])
-        self.vm.qmp_log('device_add', id='scsi1', driver=iotests.get_virtio_scsi_device(), iothread='iothread1', filters=[iotests.filter_qmp_virtio_scsi])
+        self.vm.qmp_log('device_add', id='scsi0', driver='virtio-scsi', iothread='iothread0', filters=[iotests.filter_qmp_virtio_scsi])
+        self.vm.qmp_log('device_add', id='scsi1', driver='virtio-scsi', iothread='iothread1', filters=[iotests.filter_qmp_virtio_scsi])
 
         self.vm.qmp_log('device_add', id='scsi-hd0', driver='scsi-hd', drive='hd0', bus="scsi0.0")
         self.vm.qmp_log('device_add', id='scsi-hd1', driver='scsi-hd', drive='hd0', bus="scsi1.0")
@@ -99,7 +99,7 @@ class TestCase(iotests.QMPTestCase):
         self.vm.qmp_log('nbd-server-add', device='hd0')
 
         self.vm.qmp_log('object-add', qom_type='iothread', id="iothread0")
-        self.vm.qmp_log('device_add', id='scsi0', driver=iotests.get_virtio_scsi_device(), iothread='iothread0', filters=[iotests.filter_qmp_virtio_scsi])
+        self.vm.qmp_log('device_add', id='scsi0', driver='virtio-scsi', iothread='iothread0', filters=[iotests.filter_qmp_virtio_scsi])
         self.vm.qmp_log('device_add', id='scsi-hd0', driver='scsi-hd', drive='hd0')
 
 if __name__ == '__main__':
diff --git a/tests/qemu-iotests/257 b/tests/qemu-iotests/257
index 7cd25208296e..c72c82a171b4 100755
--- a/tests/qemu-iotests/257
+++ b/tests/qemu-iotests/257
@@ -292,7 +292,7 @@ def test_bitmap_sync(bsync_mode, msync_mode='bitmap', failure=None):
         log('--- Preparing image & VM ---\n')
         drive0 = Drive(img_path, vm=vm)
         drive0.img_create(iotests.imgfmt, SIZE)
-        vm.add_device("{},id=scsi0".format(iotests.get_virtio_scsi_device()))
+        vm.add_device("{},id=scsi0".format('virtio-scsi'))
         vm.launch()
 
         file_config = {
@@ -449,7 +449,7 @@ def test_backup_api():
         log('--- Preparing image & VM ---\n')
         drive0 = Drive(img_path, vm=vm)
         drive0.img_create(iotests.imgfmt, SIZE)
-        vm.add_device("{},id=scsi0".format(iotests.get_virtio_scsi_device()))
+        vm.add_device("{},id=scsi0".format('virtio-scsi'))
         vm.launch()
 
         file_config = {
diff --git a/tests/qemu-iotests/307 b/tests/qemu-iotests/307
index 9008974346b0..c7685347bc4c 100755
--- a/tests/qemu-iotests/307
+++ b/tests/qemu-iotests/307
@@ -40,13 +40,11 @@ with iotests.FilePath('image') as img, \
 
     iotests.log('=== Launch VM ===')
 
-    virtio_scsi_device = iotests.get_virtio_scsi_device()
-
     vm.add_object('iothread,id=iothread0')
     vm.add_blockdev(f'file,filename={img},node-name=file')
     vm.add_blockdev(f'{iotests.imgfmt},file=file,node-name=fmt')
     vm.add_blockdev('raw,file=file,node-name=ro,read-only=on')
-    vm.add_device(f'id=scsi0,driver={virtio_scsi_device},iothread=iothread0')
+    vm.add_device(f'id=scsi0,driver=virtio-scsi,iothread=iothread0')
     vm.launch()
 
     vm.qmp_log('nbd-server-start',
diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index 90d0b6252368..1e9e6a066e90 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -234,11 +234,6 @@ def qemu_io_silent_check(*args):
                                stderr=subprocess.STDOUT)
     return exitcode == 0
 
-def get_virtio_scsi_device():
-    if qemu_default_machine == 's390-ccw-virtio':
-        return 'virtio-scsi-ccw'
-    return 'virtio-scsi-pci'
-
 class QemuIoInteractive:
     def __init__(self, *args):
         self.args = qemu_io_args_no_fmt + list(args)
-- 
2.30.2

Re: [PATCH 2/4] iotests: Revert "iotests: use -ccw on s390x for 040, 139, and 182"

[Philippe Mathieu-Daudé]

On 3/18/21 11:39 PM, Laurent Vivier wrote:
> Commit f1d5516ab583 introduces a test in some iotests to check if
> the machine is a s390-ssw-virtio and to select virtio-*-ccw rather
> than virtio-*-pci.
> 
> We don't need that because QEMU already provides aliases to use the correct
> virtio interface according to the machine type.
> 
> This patch removes all virtio-*-pci and virtio-*-ccw to use virtio-*
> instead.
> 
> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
> cc: Cornelia Huck <cohuck@redhat.com>
> ---
>  blockdev.c                    |  6 +-----
>  tests/qemu-iotests/040        |  2 +-
>  tests/qemu-iotests/051        | 12 +-----------
>  tests/qemu-iotests/068        |  4 +---
>  tests/qemu-iotests/093        |  3 +--
>  tests/qemu-iotests/139        |  9 ++-------
>  tests/qemu-iotests/182        | 13 ++-----------
>  tests/qemu-iotests/238        |  4 +---
>  tests/qemu-iotests/240        | 10 +++++-----
>  tests/qemu-iotests/257        |  4 ++--
>  tests/qemu-iotests/307        |  4 +---
>  tests/qemu-iotests/iotests.py |  5 -----
>  12 files changed, 18 insertions(+), 58 deletions(-)

> diff --git a/tests/qemu-iotests/051 b/tests/qemu-iotests/051
> index 7cbd1415ce7b..00382cc55e25 100755
> --- a/tests/qemu-iotests/051
> +++ b/tests/qemu-iotests/051
> @@ -119,17 +119,7 @@ echo
>  echo === Device without drive ===
>  echo
>  
> -case "$QEMU_DEFAULT_MACHINE" in
> -  s390-ccw-virtio)
> -      virtio_scsi=virtio-scsi-ccw
> -      ;;
> -  *)
> -      virtio_scsi=virtio-scsi-pci
> -      ;;
> -esac
> -
> -run_qemu -device $virtio_scsi -device scsi-hd |
> -    sed -e "s/$virtio_scsi/VIRTIO_SCSI/"
> +run_qemu -device virtio-scsi -device scsi-hd
>  
>  echo
>  echo === Overriding backing file ===

This one failed (but the fix is trivial):

051   fail       [05:49:47] [05:50:01]   13.3s                output
mismatch (see 051.out.bad)
--- /builds/philmd/qemu2/tests/qemu-iotests/051.pc.out
+++ 051.out.bad
@@ -72,7 +72,7 @@
 === Device without drive ===
-Testing: -device VIRTIO_SCSI -device scsi-hd
+Testing: -device virtio-scsi -device scsi-hd
 QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) QEMU_PROG: -device scsi-hd: drive property not set

Failures: 051
Failed 1 of 56 iotests

Re: [PATCH 2/4] iotests: Revert "iotests: use -ccw on s390x for 040, 139, and 182"

[Cornelia Huck]

On Thu, 18 Mar 2021 23:39:05 +0100
Laurent Vivier <laurent@vivier.eu> wrote:

> Commit f1d5516ab583 introduces a test in some iotests to check if
> the machine is a s390-ssw-virtio and to select virtio-*-ccw rather

s/ssw/ccw/

> than virtio-*-pci.
> 
> We don't need that because QEMU already provides aliases to use the correct
> virtio interface according to the machine type.

Maybe add a comment that this also enables virtio-mmio?

> 
> This patch removes all virtio-*-pci and virtio-*-ccw to use virtio-*
> instead.
> 
> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
> cc: Cornelia Huck <cohuck@redhat.com>
> ---
>  blockdev.c                    |  6 +-----

Hm, that also tweaks how -drive behaves, IIUC. Intended, I think; but
worth a note as well?

>  tests/qemu-iotests/040        |  2 +-
>  tests/qemu-iotests/051        | 12 +-----------
>  tests/qemu-iotests/068        |  4 +---
>  tests/qemu-iotests/093        |  3 +--
>  tests/qemu-iotests/139        |  9 ++-------
>  tests/qemu-iotests/182        | 13 ++-----------
>  tests/qemu-iotests/238        |  4 +---
>  tests/qemu-iotests/240        | 10 +++++-----
>  tests/qemu-iotests/257        |  4 ++--
>  tests/qemu-iotests/307        |  4 +---
>  tests/qemu-iotests/iotests.py |  5 -----
>  12 files changed, 18 insertions(+), 58 deletions(-)

Re: [PATCH 2/4] iotests: Revert "iotests: use -ccw on s390x for 040, 139, and 182"

[Laurent Vivier]

Le 19/03/2021 à 12:43, Cornelia Huck a écrit :
> On Thu, 18 Mar 2021 23:39:05 +0100
> Laurent Vivier <laurent@vivier.eu> wrote:
> 
>> Commit f1d5516ab583 introduces a test in some iotests to check if
>> the machine is a s390-ssw-virtio and to select virtio-*-ccw rather
> 
> s/ssw/ccw/
> 
>> than virtio-*-pci.
>>
>> We don't need that because QEMU already provides aliases to use the correct
>> virtio interface according to the machine type.
> 
> Maybe add a comment that this also enables virtio-mmio?

ok

>>
>> This patch removes all virtio-*-pci and virtio-*-ccw to use virtio-*
>> instead.
>>
>> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
>> cc: Cornelia Huck <cohuck@redhat.com>
>> ---
>>  blockdev.c                    |  6 +-----
> 
> Hm, that also tweaks how -drive behaves, IIUC. Intended, I think; but
> worth a note as well?
> 

You're right. I think it needs a separate patch, in fact.

Thanks,
Laurent

[PATCH 3/4] iotests: test m68k with the virt machine

[Laurent Vivier]

This allows to cover the virtio tests with a 32bit big-endian
virtio-mmio machine.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 tests/qemu-iotests/testenv.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/qemu-iotests/testenv.py b/tests/qemu-iotests/testenv.py
index 1fbec854c1f7..6d27712617a3 100644
--- a/tests/qemu-iotests/testenv.py
+++ b/tests/qemu-iotests/testenv.py
@@ -208,6 +208,7 @@ def __init__(self, imgfmt: str, imgproto: str, aiomode: str,
             ('arm', 'virt'),
             ('aarch64', 'virt'),
             ('avr', 'mega2560'),
+            ('m68k', 'virt'),
             ('rx', 'gdbsim-r5f562n8'),
             ('tricore', 'tricore_testboard')
         )
-- 
2.30.2

Re: [PATCH 3/4] iotests: test m68k with the virt machine

[Philippe Mathieu-Daudé]

On 3/18/21 11:39 PM, Laurent Vivier wrote:
> This allows to cover the virtio tests with a 32bit big-endian
> virtio-mmio machine.
> 
> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
> ---
>  tests/qemu-iotests/testenv.py | 1 +
>  1 file changed, 1 insertion(+)

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

[PATCH 4/4] iotests: iothreads need ioeventfd

[Laurent Vivier]

And ioeventfd are only available with virtio-scsi-pci, so don't use the alias
and add a rule to require virtio-scsi-pci for the tests that use iothreads.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 tests/qemu-iotests/127        | 4 ++--
 tests/qemu-iotests/256        | 2 ++
 tests/qemu-iotests/iotests.py | 5 +++++
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/tests/qemu-iotests/127 b/tests/qemu-iotests/127
index 98e8e82a8210..a3693533685a 100755
--- a/tests/qemu-iotests/127
+++ b/tests/qemu-iotests/127
@@ -44,7 +44,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 _supported_fmt qcow2
 _supported_proto file fuse
 
-_require_devices virtio-scsi scsi-hd
+_require_devices virtio-scsi-pci scsi-hd
 
 IMG_SIZE=64K
 
@@ -62,7 +62,7 @@ $QEMU_IO -c 'write 0 42' "$TEST_IMG.overlay0" | _filter_qemu_io
 _launch_qemu \
     -object iothread,id=iothr \
     -blockdev node-name=source,driver=$IMGFMT,file.driver=file,file.filename="$TEST_IMG.overlay0" \
-    -device virtio-scsi,id=scsi-bus,iothread=iothr \
+    -device virtio-scsi-pci,id=scsi-bus,iothread=iothr \
     -device scsi-hd,bus=scsi-bus.0,drive=source
 
 _send_qemu_cmd $QEMU_HANDLE \
diff --git a/tests/qemu-iotests/256 b/tests/qemu-iotests/256
index 8d82a1dd865f..eb3af0dea80c 100755
--- a/tests/qemu-iotests/256
+++ b/tests/qemu-iotests/256
@@ -24,6 +24,8 @@ import os
 import iotests
 from iotests import log
 
+iotests._verify_virtio_scsi_pci()
+
 iotests.script_initialize(supported_fmts=['qcow2'])
 size = 64 * 1024 * 1024
 
diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index 1e9e6a066e90..3404ed534bb5 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -1146,6 +1146,11 @@ def _verify_virtio_blk() -> None:
     if 'virtio-blk' not in out:
         notrun('Missing virtio-blk in QEMU binary')
 
+def _verify_virtio_scsi_pci() -> None:
+    out = qemu_pipe('-M', 'none', '-device', 'help')
+    if 'virtio-scsi-pci' not in out:
+        notrun('Missing virtio-scsi-pci in QEMU binary')
+
 
 def supports_quorum():
     return 'quorum' in qemu_img_pipe('--help')
-- 
2.30.2

Re: [PATCH 4/4] iotests: iothreads need ioeventfd

[Paolo Bonzini]

On 18/03/21 23:39, Laurent Vivier wrote:
> And ioeventfd are only available with virtio-scsi-pci, so don't use the alias
> and add a rule to require virtio-scsi-pci for the tests that use iothreads.
> 
> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
> ---
>   tests/qemu-iotests/127        | 4 ++--
>   tests/qemu-iotests/256        | 2 ++
>   tests/qemu-iotests/iotests.py | 5 +++++
>   3 files changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/tests/qemu-iotests/127 b/tests/qemu-iotests/127
> index 98e8e82a8210..a3693533685a 100755
> --- a/tests/qemu-iotests/127
> +++ b/tests/qemu-iotests/127
> @@ -44,7 +44,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
>   _supported_fmt qcow2
>   _supported_proto file fuse
>   
> -_require_devices virtio-scsi scsi-hd
> +_require_devices virtio-scsi-pci scsi-hd

Maybe

_require_devices scsi-hd
_require_devices virtio-scsi-pci || _require_devices virtio-scsi ccw

?

Paolo

Re: [PATCH 4/4] iotests: iothreads need ioeventfd

[Cornelia Huck]

On Fri, 19 Mar 2021 12:06:43 +0100
Paolo Bonzini <pbonzini@redhat.com> wrote:

> On 18/03/21 23:39, Laurent Vivier wrote:
> > And ioeventfd are only available with virtio-scsi-pci, so don't use the alias
> > and add a rule to require virtio-scsi-pci for the tests that use iothreads.
> > 
> > Signed-off-by: Laurent Vivier <laurent@vivier.eu>
> > ---
> >   tests/qemu-iotests/127        | 4 ++--
> >   tests/qemu-iotests/256        | 2 ++
> >   tests/qemu-iotests/iotests.py | 5 +++++
> >   3 files changed, 9 insertions(+), 2 deletions(-)
> > 
> > diff --git a/tests/qemu-iotests/127 b/tests/qemu-iotests/127
> > index 98e8e82a8210..a3693533685a 100755
> > --- a/tests/qemu-iotests/127
> > +++ b/tests/qemu-iotests/127
> > @@ -44,7 +44,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
> >   _supported_fmt qcow2
> >   _supported_proto file fuse
> >   
> > -_require_devices virtio-scsi scsi-hd
> > +_require_devices virtio-scsi-pci scsi-hd  
> 
> Maybe
> 
> _require_devices scsi-hd
> _require_devices virtio-scsi-pci || _require_devices virtio-scsi ccw
> 
> ?
> 
> Paolo
> 

Yes, ioeventfds are also available for ccw; I'd expect only mmio to be
the problem here.

Re: [PATCH 4/4] iotests: iothreads need ioeventfd

[Laurent Vivier]

Le 19/03/2021 à 12:27, Cornelia Huck a écrit :
> On Fri, 19 Mar 2021 12:06:43 +0100
> Paolo Bonzini <pbonzini@redhat.com> wrote:
> 
>> On 18/03/21 23:39, Laurent Vivier wrote:
>>> And ioeventfd are only available with virtio-scsi-pci, so don't use the alias
>>> and add a rule to require virtio-scsi-pci for the tests that use iothreads.
>>>
>>> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
>>> ---
>>>   tests/qemu-iotests/127        | 4 ++--
>>>   tests/qemu-iotests/256        | 2 ++
>>>   tests/qemu-iotests/iotests.py | 5 +++++
>>>   3 files changed, 9 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/tests/qemu-iotests/127 b/tests/qemu-iotests/127
>>> index 98e8e82a8210..a3693533685a 100755
>>> --- a/tests/qemu-iotests/127
>>> +++ b/tests/qemu-iotests/127
>>> @@ -44,7 +44,7 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
>>>   _supported_fmt qcow2
>>>   _supported_proto file fuse
>>>   
>>> -_require_devices virtio-scsi scsi-hd
>>> +_require_devices virtio-scsi-pci scsi-hd  
>>
>> Maybe
>>
>> _require_devices scsi-hd
>> _require_devices virtio-scsi-pci || _require_devices virtio-scsi ccw
>>
>> ?
>>
>> Paolo
>>
> 
> Yes, ioeventfds are also available for ccw; I'd expect only mmio to be
> the problem here.
> 

OK, thanks.

I update my patch with the changes from Paolo.

Laurent