From: "Thomas Hellström (VMware)" <thomas_os@shipmail.org>
To: Christoph Hellwig <hch@infradead.org>
Cc: "Dave Hansen" <dave.hansen@intel.com>,
linux-kernel@vger.kernel.org, x86@kernel.org,
pv-drivers@vmware.com, "Thomas Hellstrom" <thellstrom@vmware.com>,
"Dave Hansen" <dave.hansen@linux.intel.com>,
"Andy Lutomirski" <luto@kernel.org>,
"Peter Zijlstra" <peterz@infradead.org>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Ingo Molnar" <mingo@redhat.com>,
"Borislav Petkov" <bp@alien8.de>,
"H. Peter Anvin" <hpa@zytor.com>,
"Christian König" <christian.koenig@amd.com>,
"Marek Szyprowski" <m.szyprowski@samsung.com>,
"Tom Lendacky" <thomas.lendacky@amd.com>
Subject: Re: [RFC PATCH 1/2] x86: Don't let pgprot_modify() change the page encryption bit
Date: Thu, 5 Sep 2019 18:40:59 +0200 [thread overview]
Message-ID: <86b48953-69a2-c211-2b48-b796c07426bc@shipmail.org> (raw)
In-Reply-To: <20190905152438.GA18286@infradead.org>
On 9/5/19 5:24 PM, Christoph Hellwig wrote:
> On Thu, Sep 05, 2019 at 05:21:24PM +0200, Thomas Hellström (VMware) wrote:
>> On 9/5/19 4:15 PM, Dave Hansen wrote:
>>> Hi Thomas,
>>>
>>> Thanks for the second batch of patches! These look much improved on all
>>> fronts.
>> Yes, although the TTM functionality isn't in yet. Hopefully we won't have to
>> bother you with those though, since this assumes TTM will be using the dma
>> API.
> Please take a look at dma_mmap_prepare and dma_mmap_fault in this
> branch:
>
> http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/dma-mmap-improvements
>
> they should allow to fault dma api pages in the page fault handler. But
> this is totally hot off the press and not actually tested for the last
> few patches. Note that I've also included your two patches from this
> series to handle SEV.
Thanks, Christoph.
I'll get to this tomorrow.
/Thomas
next prev parent reply other threads:[~2019-09-05 16:41 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-05 10:35 [RFC PATCH 0/2] Fix SEV user-space mapping of unencrypted coherent memory Thomas Hellström (VMware)
2019-09-05 10:35 ` [RFC PATCH 1/2] x86: Don't let pgprot_modify() change the page encryption bit Thomas Hellström (VMware)
2019-09-05 14:15 ` Dave Hansen
2019-09-05 15:21 ` Thomas Hellström (VMware)
2019-09-05 15:24 ` Christoph Hellwig
2019-09-05 16:40 ` Thomas Hellström (VMware) [this message]
2019-09-05 17:05 ` dma_mmap_fault discussion Thomas Hellström (VMware)
2019-09-06 6:32 ` Christoph Hellwig
2019-09-06 7:10 ` Thomas Hellström (VMware)
2019-09-06 7:20 ` Christoph Hellwig
2019-09-10 8:37 ` Thomas Hellström (VMware)
2019-09-10 16:11 ` [RFC PATCH 1/2] x86: Don't let pgprot_modify() change the page encryption bit Andy Lutomirski
2019-09-10 19:26 ` Thomas Hellström (VMware)
2019-09-11 4:18 ` Andy Lutomirski
2019-09-11 7:49 ` Thomas Hellström (VMware)
2019-09-11 18:03 ` Andy Lutomirski
2019-09-12 8:29 ` Thomas Hellström (VMware)
2019-09-11 9:08 ` Koenig, Christian
2019-09-11 10:10 ` TTM huge page-faults WAS: " Thomas Hellström (VMware)
2019-09-11 14:06 ` Koenig, Christian
2019-09-11 15:08 ` Thomas Hellström (VMware)
2019-09-24 12:03 ` Koenig, Christian
2019-09-05 15:59 ` Dave Hansen
2019-09-05 16:29 ` Thomas Hellström (VMware)
2019-09-05 10:35 ` [RFC PATCH 2/2] dma-mapping: Fix dma_pgprot() for unencrypted coherent pages Thomas Hellström (VMware)
2019-09-05 11:23 ` [RFC PATCH 0/2] Fix SEV user-space mapping of unencrypted coherent memory Christoph Hellwig
2019-09-10 6:11 ` Christoph Hellwig
2019-09-10 6:25 ` Thomas Hellström (VMware)
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