linuxppc-dev.lists.ozlabs.org archive mirror
 help / color / mirror / Atom feed
From: Jason Gunthorpe <jgg@ziepe.ca>
To: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Cc: kvm@vger.kernel.org, aik@ozlabs.ru, linux-kernel@vger.kernel.org,
	oohall@gmail.com, ruscur@russell.cc, brking@linux.vnet.ibm.com,
	robh@kernel.org, svaidy@linux.ibm.com, aneesh.kumar@kernel.org,
	joel@jms.id.au, naveen.n.rao@linux.ibm.com, msuchanek@suse.de,
	jroedel@suse.de, gbatra@linux.vnet.ibm.com, npiggin@gmail.com,
	alex.williamson@redhat.com, mahesh@linux.ibm.com,
	tpearson@raptorengineering.com,
	Alexey Kardashevskiy <aik@amd.com>,
	vaibhav@linux.ibm.com, linuxppc-dev@lists.ozlabs.org
Subject: Re: [RFC PATCH v2 0/6] powerpc: pSeries: vfio: iommu: Re-enable support for SPAPR TCE VFIO
Date: Mon, 6 May 2024 14:43:57 -0300	[thread overview]
Message-ID: <20240506174357.GF901876@ziepe.ca> (raw)
In-Reply-To: <8c28a1d5-ac84-445b-80e6-a705e6d7ff1b@linux.ibm.com>

On Sat, May 04, 2024 at 12:33:53AM +0530, Shivaprasad G Bhat wrote:
> We have legacy workloads using VFIO in userspace/kvm guests running
> on downstream distro kernels. We want these workloads to be able to
> continue running on our arch.

It has been broken since 2018, I don't find this reasoning entirely
reasonable :\

> I firmly believe the refactoring in this patch series is a step in
> that direction.

But fine, as long as we are going to fix it. PPC really needs this to
be resolved to keep working.

Jason

  reply	other threads:[~2024-05-06 17:44 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-30 20:05 [RFC PATCH v2 0/6] powerpc: pSeries: vfio: iommu: Re-enable support for SPAPR TCE VFIO Shivaprasad G Bhat
2024-04-30 20:05 ` [RFC PATCH v2 1/6] powerpc/iommu: Move pSeries specific functions to pseries/iommu.c Shivaprasad G Bhat
2024-04-30 20:06 ` [RFC PATCH v2 2/6] powerpc/pseries/iommu: Fix the VFIO_IOMMU_SPAPR_TCE_GET_INFO ioctl output Shivaprasad G Bhat
2024-04-30 20:06 ` [RFC PATCH v2 3/6] powerpc/pseries/iommu: Use the iommu table[0] for IOV VF's DDW Shivaprasad G Bhat
2024-04-30 20:06 ` [RFC PATCH v2 4/6] vfio/spapr: Always clear TCEs before unsetting the window Shivaprasad G Bhat
2024-04-30 20:06 ` [RFC PATCH v2 5/6] powerpc/iommu: Move dev_has_iommu_table() to iommu.c Shivaprasad G Bhat
2024-04-30 20:06 ` [RFC PATCH v2 6/6] powerpc/iommu: Implement the iommu_table_group_ops for pSeries Shivaprasad G Bhat
2024-05-01 14:09 ` [RFC PATCH v2 0/6] powerpc: pSeries: vfio: iommu: Re-enable support for SPAPR TCE VFIO Jason Gunthorpe
2024-05-02  1:29   ` Alexey Kardashevskiy
2024-05-03 19:03     ` Shivaprasad G Bhat
2024-05-06 17:43       ` Jason Gunthorpe [this message]
2024-05-07 15:10         ` Shivaprasad G Bhat
2024-05-10 18:33         ` Shawn Anastasio

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20240506174357.GF901876@ziepe.ca \
    --to=jgg@ziepe.ca \
    --cc=aik@amd.com \
    --cc=aik@ozlabs.ru \
    --cc=alex.williamson@redhat.com \
    --cc=aneesh.kumar@kernel.org \
    --cc=brking@linux.vnet.ibm.com \
    --cc=gbatra@linux.vnet.ibm.com \
    --cc=joel@jms.id.au \
    --cc=jroedel@suse.de \
    --cc=kvm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linuxppc-dev@lists.ozlabs.org \
    --cc=mahesh@linux.ibm.com \
    --cc=msuchanek@suse.de \
    --cc=naveen.n.rao@linux.ibm.com \
    --cc=npiggin@gmail.com \
    --cc=oohall@gmail.com \
    --cc=robh@kernel.org \
    --cc=ruscur@russell.cc \
    --cc=sbhat@linux.ibm.com \
    --cc=svaidy@linux.ibm.com \
    --cc=tpearson@raptorengineering.com \
    --cc=vaibhav@linux.ibm.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).