Re: [PATCH v19 00/15] arm64: untag user pointers passed to the kernel

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Subject: Re: [PATCH v19 00/15] arm64: untag user pointers passed to the kernel
From: Dave Hansen <dave.hansen@xxxxxxxxx>
Date: Wed, 31 Jul 2019 09:50:58 -0700
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>, Vincenzo Frascino <vincenzo.frascino@xxxxxxx>, Will Deacon <will.deacon@xxxxxxx>, Mark Rutland <mark.rutland@xxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, Kees Cook <keescook@xxxxxxxxxxxx>, Yishai Hadas <yishaih@xxxxxxxxxxxx>, Felix Kuehling <Felix.Kuehling@xxxxxxx>, Alexander Deucher <Alexander.Deucher@xxxxxxx>, Christian Koenig <Christian.Koenig@xxxxxxx>, Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>, Jens Wiklander <jens.wiklander@xxxxxxxxxx>, Alex Williamson <alex.williamson@xxxxxxxxxx>, Leon Romanovsky <leon@xxxxxxxxxx>, Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>, Dave Martin <Dave.Martin@xxxxxxx>, Khalid Aziz <khalid.aziz@xxxxxxxxxx>, enh <enh@xxxxxxxxxx>, Jason Gunthorpe <jgg@xxxxxxxx>, Christoph Hellwig <hch@xxxxxxxxxxxxx>, Dmitry Vyukov <dvyukov@xxxxxxxxxx>, Kostya Serebryany <kcc@xxxxxxxxxx>, Evgeniy Stepanov <eugenis@xxxxxxxxxx>, Lee Smith <Lee.Smith@xxxxxxx>, Ramana Radhakrishnan <Ramana.Radhakrishnan@xxxxxxx>, Jacob Bramley <Jacob.Bramley@xxxxxxx>, Ruben Ayrapetyan <Ruben.Ayrapetyan@xxxxxxx>, Robin Murphy <robin.murphy@xxxxxxx>, Kevin Brodsky <kevin.brodsky@xxxxxxx>, Szabolcs Nagy <Szabolcs.Nagy@xxxxxxx>
In-reply-to: <cover.1563904656.git.andreyknvl@google.com>
Openpgp: preference=signencrypt
References: <cover.1563904656.git.andreyknvl@google.com>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0

On 7/23/19 10:58 AM, Andrey Konovalov wrote:
> The mmap and mremap (only new_addr) syscalls do not currently accept
> tagged addresses. Architectures may interpret the tag as a background
> colour for the corresponding vma.

What the heck is a "background colour"? :)

Follow-Ups:
- Re: [PATCH v19 00/15] arm64: untag user pointers passed to the kernel
  - From: Kevin Brodsky

References:
- [PATCH v19 00/15] arm64: untag user pointers passed to the kernel
  - From: Andrey Konovalov

Prev by Date: Re: [PATCH 1/3] KVM: Don't need to wakeup vCPU twice afer timer fire
Next by Date: Re: [PATCH v19 02/15] arm64: Introduce prctl() options to control the tagged user addresses ABI
Previous by thread: Re: [PATCH v19 00/15] arm64: untag user pointers passed to the kernel
Next by thread: Re: [PATCH v19 00/15] arm64: untag user pointers passed to the kernel
Index(es):
- Date
- Thread

[Index of Archives] [KVM ARM] [KVM ia64] [KVM ppc] [Virtualization Tools] [Spice Development] [Libvirt] [Libvirt Users] [Linux USB Devel] [Linux Audio Users] [Yosemite Questions] [Linux Kernel] [Linux SCSI] [XFree86]