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Re: [Xen-devel] [PATCH RFC v2] Add SUPPORT.md



On Fri, Sep 15, 2017 at 3:51 PM, Konrad Rzeszutek Wilk
<konrad.wilk@xxxxxxxxxx> wrote:
>> +### Soft-reset for PV guests
>
> s/PV/HVM/

Is it?  I thought this was for RHEL 5 PV guests to be able to do crash kernels.

>> +### Transcendent Memory
>> +
>> +    Status: Experimental
>> +
>> +[XXX Add description]
>
> Guests with tmem drivers autoballoon memory out allowing a fluid
> and dynamic memory allocation - in effect memory overcommit without
> the need to swap. Only works with Linux guests (as it requires
> OS drivers).

But autoballooning doesn't require any support in Xen, right?  I
thought the TMEM support in Xen was more about the trancendent memory
backends.

> ..snip..
>> +### Live Patching
>> +
>> +    Status, x86: Supported
>> +    Status, ARM: Experimental
>> +
>> +Compile time disabled
>
> for ARM.
>
> As the patch will do:
>
>  config LIVEPATCH
> -       bool "Live patching support (TECH PREVIEW)"
> -       default n
> +       bool "Live patching support"
> +       default X86
>         depends on HAS_BUILD_ID = "y"
>         ---help---
>           Allows a running Xen hypervisor to be dynamically patched using

Ack

 -George

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