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]

 



On 31/07/2019 17:50, Dave Hansen wrote:
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"? :)

Good point, this is some jargon that we started using for MTE, the idea being that the kernel could set a tag value (specified during mmap()) as "background colour" for anonymous pages allocated in that range.

Anyway, this patch series is not about MTE. Andrey, for v20 (if any), I think it's best to drop this last sentence to avoid any confusion.

Kevin



[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]

  Powered by Linux