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xen-devel
RE: [Xen-devel] Features for Linux kernel 3.3.
> From: Konrad Rzeszutek Wilk
> Sent: Thursday, October 13, 2011 1:32 PM
> To: xen-devel@xxxxxxxxxxxxxxxxxxx; xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-devel] Features for Linux kernel 3.3.
>
>
> This is what is being currently developed and reviewed. Some of it
> might be done before 3.2 merge windows opens so it could become part
> of 3.2:
>
> - PV spinlocks. Jeremy has been tirelessly working on this and every time
> it looks like it is ready somebody comes out and points out a bug
> in generic code that impacts his work. So this has mushroomed to now
> include jump_label support (for tracing), compare and exchange atomic
> operations (for everything), and then the PV spinlocks patches.
>
> - ACPI S3 support. The code is going through a review and we need
> some eyes from the ACPI folks to make sure nothing is wrong.
>
> - Graphic support for radeon/nouveau for 32-bit cards (enterprise type).
> Also known as "TTM DMA pool" code.
>
> - Blkback/blkfront features. Expanding the blkback to do amazing things.
> Like make the code easier to read, expanding the discard support to support
> REQ_DISCARD_SECURE and also do multipage rings (to allow more I/Os).
>
> - microcode update. Well, this one is complex. The x86 maintainers
> want to re-write how it is done, so the Xen microcode is shelved for
> right now until that is complete.
>
> - cleancache. This is the last piece of tmem - it allows the swap disk
> to use the temporary memory pool that tmem provides to make the guest
> run even faster.
Correction. *Frontswap* is the last piece of tmem. (Cleancache went
in at 3.0.)
> - Xen ACPI cpufreq patches. They are not yet ready to be posted, but they
> are slowly taking shape.
>
> If I missed somebody's current work, please point me out to it.
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