From: Linus Torvalds <torvalds@linux-foundation.org>
To: Sumit Garg <sumit.garg@linaro.org>
Cc: "Phil Chang (張世勳)" <Phil.Chang@mediatek.com>,
"ira.weiny@intel.com" <ira.weiny@intel.com>,
"Jens Wiklander" <jens.wiklander@linaro.org>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Al Viro" <viro@zeniv.linux.org.uk>,
"Fabio M. De Francesco" <fmdefrancesco@gmail.com>,
"Christoph Hellwig" <hch@lst.de>,
"op-tee@lists.trustedfirmware.org"
<op-tee@lists.trustedfirmware.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: [PATCH 2/4] tee: Remove vmalloc page support
Date: Thu, 6 Oct 2022 11:20:16 -0700 [thread overview]
Message-ID: <CAHk-=whVyH-wSWLd=Zn4rwo+91T+qzRvfMPC2yFX98GxykOqOw@mail.gmail.com> (raw)
In-Reply-To: <CAFA6WYMT9S1Di6DN_UXc823f0ZTkqerE1PB=oG6wmfx28vEbDg@mail.gmail.com>
On Wed, Oct 5, 2022 at 11:24 PM Sumit Garg <sumit.garg@linaro.org> wrote:
>
> Sorry but you need to get your driver mainline in order to support
> vmalloc interface.
Actually, I think even then we shouldn't support vmalloc - and
register_shm_helper() just needs to be changed to pass in an array of
actual page pointers instead.
At that point TEE_SHM_USER_MAPPED should also go away, because then
it's the caller that should just do either the user space page
pinning, or pass in the kernel page pointer.
JensW, is there some reason that wouldn't work?
Linus
next prev parent reply other threads:[~2022-10-06 18:20 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-02 0:23 [PATCH 0/4] Remove get_kernel_pages() ira.weiny
2022-10-02 0:23 ` [PATCH 1/4] highmem: Enhance is_kmap_addr() to check kmap_local_page() mappings ira.weiny
2022-10-02 0:23 ` [PATCH 2/4] tee: Remove vmalloc page support ira.weiny
2022-10-03 6:41 ` Jens Wiklander
2022-10-03 6:57 ` Sumit Garg
2022-10-05 3:28 ` Phil Chang (張世勳)
2022-10-06 6:23 ` Sumit Garg
2022-10-06 18:19 ` Ira Weiny
2022-10-06 18:20 ` Linus Torvalds [this message]
2022-10-07 8:12 ` Jens Wiklander
2022-12-16 0:41 ` Ira Weiny
2022-12-16 5:09 ` Sumit Garg
2022-12-16 8:45 ` Sumit Garg
2022-12-16 7:06 ` Christoph Hellwig
2022-10-10 7:42 ` Christoph Hellwig
2022-10-10 17:20 ` Linus Torvalds
2022-10-10 17:57 ` Al Viro
2022-10-02 0:23 ` [PATCH 3/4] tee: Remove call to get_kernel_pages() ira.weiny
2022-10-02 0:46 ` Al Viro
2022-10-02 2:30 ` Ira Weiny
2022-10-03 7:17 ` Christoph Hellwig
2022-10-03 15:02 ` Ira Weiny
2022-10-02 0:23 ` [PATCH 4/4] mm: Remove get_kernel_pages() ira.weiny
2022-10-03 20:28 ` John Hubbard
2022-10-03 9:25 ` [PATCH 0/4] " Sumit Garg
2022-10-03 15:22 ` Ira Weiny
2022-10-04 6:32 ` Sumit Garg
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