OvmfPkg/VirtioMmioDeviceLib: virtio 1.0: Fix SetQueueAlignment.

[edk2-devel] [PATCH] OvmfPkg/VirtioMmioDeviceLib: virtio 1.0: Fix SetQueueAlignment.

Posted by Jeff Brasen via groups.io 1 year, 1 month ago

Nothing to do here for virtio 1.0 devices

Signed-off-by: Jeff Brasen <jbrasen@nvidia.com>
---
 .../Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c   | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
index 8bdf1e1fc3..de2c5fa2a6 100644
--- a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
+++ b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
@@ -144,7 +144,9 @@ VirtioMmioSetQueueAlignment (
 
   Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
 
-  VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_ALIGN, Alignment);
+  if (Device->Version == VIRTIO_MMIO_DEVICE_VERSION_0_95) {
+    VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_ALIGN, Alignment);
+  }
 
   return EFI_SUCCESS;
 }
-- 
2.25.1



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Re: [edk2-devel] [PATCH] OvmfPkg/VirtioMmioDeviceLib: virtio 1.0: Fix SetQueueAlignment.

Posted by Gerd Hoffmann 1 year, 1 month ago

On Fri, Mar 24, 2023 at 01:42:17AM +0000, Jeff Brasen wrote:
> Nothing to do here for virtio 1.0 devices
> 
> Signed-off-by: Jeff Brasen <jbrasen@nvidia.com>
> ---
>  .../Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c   | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
> index 8bdf1e1fc3..de2c5fa2a6 100644
> --- a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
> +++ b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
> @@ -144,7 +144,9 @@ VirtioMmioSetQueueAlignment (
>  
>    Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
>  
> -  VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_ALIGN, Alignment);
> +  if (Device->Version == VIRTIO_MMIO_DEVICE_VERSION_0_95) {
> +    VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_ALIGN, Alignment);
> +  }

Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>



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Re: [edk2-devel] [PATCH] OvmfPkg/VirtioMmioDeviceLib: virtio 1.0: Fix SetQueueAlignment.

Posted by Ard Biesheuvel 1 year ago

On Fri, 24 Mar 2023 at 13:30, Gerd Hoffmann <kraxel@redhat.com> wrote:
>
> On Fri, Mar 24, 2023 at 01:42:17AM +0000, Jeff Brasen wrote:
> > Nothing to do here for virtio 1.0 devices
> >
> > Signed-off-by: Jeff Brasen <jbrasen@nvidia.com>
> > ---
> >  .../Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c   | 4 +++-
> >  1 file changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
> > index 8bdf1e1fc3..de2c5fa2a6 100644
> > --- a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
> > +++ b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
> > @@ -144,7 +144,9 @@ VirtioMmioSetQueueAlignment (
> >
> >    Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
> >
> > -  VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_ALIGN, Alignment);
> > +  if (Device->Version == VIRTIO_MMIO_DEVICE_VERSION_0_95) {
> > +    VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_ALIGN, Alignment);
> > +  }
>
> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
>

Queuing this up now - apologies for the delay.


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