From: "Luck, Tony" <tony.luck@intel.com>
To: Andy Lutomirski <luto@kernel.org>
Cc: "Yu, Fenghua" <fenghua.yu@intel.com>,
Randy Dunlap <rdunlap@infradead.org>,
"Jiang, Dave" <dave.jiang@intel.com>,
"Raj, Ashok" <ashok.raj@intel.com>,
"Shankar, Ravi V" <ravi.v.shankar@intel.com>,
Jean-Philippe Brucker <jean-philippe@linaro.org>,
Peter Zijlstra <peterz@infradead.org>, x86 <x86@kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
Christoph Hellwig <hch@infradead.org>,
"Hansen, Dave" <dave.hansen@intel.com>,
"iommu@lists.linux-foundation.org"
<iommu@lists.linux-foundation.org>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"Pan, Jacob jun" <jacob.jun.pan@intel.com>,
H Peter Anvin <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
David Woodhouse <dwmw2@infradead.org>
Subject: Re: [PATCH] x86/cpufeatures: Force disable X86_FEATURE_ENQCMD and remove update_pasid()
Date: Fri, 25 Jun 2021 08:46:41 -0700 [thread overview]
Message-ID: <20210625154641.GA1206684@agluck-desk2.amr.corp.intel.com> (raw)
In-Reply-To: <bd5bb38c-0b81-a302-dd20-ef56fd970c9e@kernel.org>
On Wed, Jun 09, 2021 at 04:34:31PM -0700, Andy Lutomirski wrote:
> On 6/9/21 10:32 AM, Luck, Tony wrote:
> >>> I've told Fenghua to dig out the previous iteration of this patch where
> >>> the plan was to lazily fix the PASID_MSR in other threads in the #GP
> >>> handler.
> >>
> >> Blech. Also this won't work for other PASID-like features.
> >>
> >> I have a half-written patch to fix this up for real. Stay tuned.
> >
> > Andy: Any update on this?
> >
> > -Tony
> >
>
> Let me try to merge my pile with tglx's pile and come up with something
> halfway sane.
Looks like Thomas' pile is done (well done enough to be queued in TIP).
Can we see your "pile" soon?
-Tony
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
next prev parent reply other threads:[~2021-06-25 15:47 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-15 16:30 [PATCH v8 0/9] x86: tag application address space for devices Fenghua Yu
2020-09-15 16:30 ` [PATCH v8 1/9] drm, iommu: Change type of pasid to u32 Fenghua Yu
2020-09-15 16:30 ` [PATCH v8 2/9] iommu/vt-d: Change flags type to unsigned int in binding mm Fenghua Yu
2020-09-15 16:30 ` [PATCH v8 3/9] Documentation/x86: Add documentation for SVA (Shared Virtual Addressing) Fenghua Yu
2020-09-17 7:53 ` Borislav Petkov
2020-09-17 14:56 ` Raj, Ashok
2020-09-17 17:18 ` Borislav Petkov
2020-09-17 17:22 ` Raj, Ashok
2020-09-17 17:30 ` Borislav Petkov
2020-09-18 16:22 ` Fenghua Yu
2020-09-15 16:30 ` [PATCH v8 4/9] x86/cpufeatures: Enumerate ENQCMD and ENQCMDS instructions Fenghua Yu
2020-09-15 16:30 ` [PATCH v8 5/9] x86/fpu/xstate: Add supervisor PASID state for ENQCMD feature Fenghua Yu
2020-09-15 16:30 ` [PATCH v8 6/9] x86/msr-index: Define IA32_PASID MSR Fenghua Yu
2020-09-15 16:30 ` [PATCH v8 7/9] mm: Define pasid in mm Fenghua Yu
2020-09-15 16:30 ` [PATCH v8 8/9] x86/cpufeatures: Mark ENQCMD as disabled when configured out Fenghua Yu
2020-09-15 16:30 ` [PATCH v8 9/9] x86/mmu: Allocate/free PASID Fenghua Yu
2021-05-29 9:17 ` [PATCH] x86/cpufeatures: Force disable X86_FEATURE_ENQCMD and remove update_pasid() Thomas Gleixner
2021-05-31 8:43 ` Borislav Petkov
2021-05-31 10:16 ` Thomas Gleixner
2021-06-02 20:37 ` Luck, Tony
2021-06-03 17:31 ` Andy Lutomirski
2021-06-09 17:32 ` Luck, Tony
2021-06-09 23:34 ` Andy Lutomirski
2021-06-25 15:46 ` Luck, Tony [this message]
2021-06-02 10:14 ` Borislav Petkov
2021-06-02 10:20 ` Thomas Gleixner
2021-06-03 11:20 ` Vinod Koul
2021-06-03 11:42 ` Borislav Petkov
2021-06-03 12:47 ` Vinod Koul
2021-06-03 14:33 ` Borislav Petkov
2020-09-16 8:06 ` [PATCH v8 0/9] x86: tag application address space for devices Joerg Roedel
2020-09-17 23:53 ` Fenghua Yu
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=20210625154641.GA1206684@agluck-desk2.amr.corp.intel.com \
--to=tony.luck@intel.com \
--cc=ashok.raj@intel.com \
--cc=bp@alien8.de \
--cc=dave.hansen@intel.com \
--cc=dave.jiang@intel.com \
--cc=dwmw2@infradead.org \
--cc=fenghua.yu@intel.com \
--cc=hch@infradead.org \
--cc=hpa@zytor.com \
--cc=iommu@lists.linux-foundation.org \
--cc=jacob.jun.pan@intel.com \
--cc=jean-philippe@linaro.org \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@kernel.org \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=ravi.v.shankar@intel.com \
--cc=rdunlap@infradead.org \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/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).