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RE: [PATCH 1/2] docs, xen/arm: Introduce reserved heap memory
- To: Stefano Stabellini <sstabellini@xxxxxxxxxx>
- From: Henry Wang <Henry.Wang@xxxxxxx>
- Date: Tue, 30 Aug 2022 01:02:14 +0000
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- Cc: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <Bertrand.Marquis@xxxxxxx>, Wei Chen <Wei.Chen@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Penny Zheng <Penny.Zheng@xxxxxxx>
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- Thread-topic: [PATCH 1/2] docs, xen/arm: Introduce reserved heap memory
Hi Stefano,
> -----Original Message-----
> From: Stefano Stabellini <sstabellini@xxxxxxxxxx>
> Subject: Re: [PATCH 1/2] docs, xen/arm: Introduce reserved heap memory
>
> On Wed, 24 Aug 2022, Henry Wang wrote:
> > ---
> > The name of the device tree property was chosen because we want to
> > reuse as much as the device tree parsing helpers from the static
> > memory allocation feature, but we would like to hear the upstream
> > reviewers' opinion about if using "xen,static-heap" is better.
> > ---
> > +The dtb property should look like as follows:
> > +
> > +- property name
> > +
> > + "xen,static-mem" (Should be used in the `chosen` node)
> > +
> > +- cells
> > +
> > + Specify the start address and the length of the reserved heap memory.
> > + The number of cells for the address and the size should be defined
> > + using the properties `#xen,static-mem-address-cells` and
> > + `#xen,static-mem-size-cells` respectively.
>
> I would choose a different name for the property not to be confused with
> a domain's xen,static-mem property which is for a different purpose: the
> memory of the domain.
Sure, thank you for the input. I will correct these in v2.
>
> ---
>
> - xen,static-heap
>
> Property under the top-level "chosen" node. It specifies the address
> and size of Xen reserved heap memory.
>
>
> - #xen,static-heap-address-cells and #xen,static-heap-size-cells
>
> Specify the number of cells used for the address and size of the
> xen,static-heap property under "chosen".
Thanks for these!
Kind regards,
Henry
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