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From: "Cédric Le Goater" <clg@redhat.com>
To: Matthew Rosato <mjrosato@linux.ibm.com>, qemu-s390x@nongnu.org
Cc: farman@linux.ibm.com, thuth@redhat.com, pasic@linux.ibm.com,
	borntraeger@linux.ibm.com, richard.henderson@linaro.org,
	david@redhat.com, iii@linux.ibm.com, qemu-devel@nongnu.org
Subject: Re: [PATCH 0/2] s390x/pci: small set of fixes
Date: Fri, 10 Nov 2023 08:40:38 +0100	[thread overview]
Message-ID: <81e498b6-9e74-4bf8-8c7e-02ff9451ebe3@redhat.com> (raw)
In-Reply-To: <20231109225302.401344-1-mjrosato@linux.ibm.com>

Hello Matthew,

On 11/9/23 23:53, Matthew Rosato wrote:
> The following set of changes are associated with issues exposed by testing
> of the 'vfio: Adopt iommufd' series.
> 
> The first patch fixes an existing assumption that a vfio device will always
> have a group fd (which is no longer true if cdev is used, which can only
> happen once the iommufd backend is used).  This patch really only needs to
> go into 8.2 if the 'vfio: Adopt iommufd' series does (but would be fine to
> go into 8.2 without it too).

It is a bit late for the 8.2. So we have time to polish v5 of the 'vfio: Adopt
iommufd' series a bit more. I should include the v6 in an early PR for a 9.0.
  
> The second patch fixes an issue where we do not detect that a vfio DMA limit
> was never read from vfio.  This is actually an existing bug as it's possible
> for an older host kernel to be missing this support today; so ideally this one
> should be targeted for 8.2 regardless.

Nevertheless, I hope these two fixes can reached 8.2 since they are good
to have anyhow.

Thanks,

C.

  
> Matthew Rosato (2):
>    s390x/pci: bypass vfio DMA counting when using cdev
>    s390x/pci: only limit DMA aperture if vfio DMA limit reported
> 
>   hw/s390x/s390-pci-vfio.c | 8 ++++++--
>   1 file changed, 6 insertions(+), 2 deletions(-)
> 



      parent reply	other threads:[~2023-11-10  7:41 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-09 22:53 [PATCH 0/2] s390x/pci: small set of fixes Matthew Rosato
2023-11-09 22:53 ` [PATCH 1/2] s390x/pci: bypass vfio DMA counting when using cdev Matthew Rosato
2023-11-10  5:21   ` Philippe Mathieu-Daudé
2023-11-10  5:22     ` Philippe Mathieu-Daudé
2023-11-09 22:53 ` [PATCH 2/2] s390x/pci: only limit DMA aperture if vfio DMA limit reported Matthew Rosato
2023-11-10  6:20   ` Thomas Huth
2023-11-10  7:40 ` Cédric Le Goater [this message]

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