Re: [Xen-devel] [PATCH] libxc/arm: initialise p2m_size to make gcc happy

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Wed, Mar 14, 2018 at 01:27:37PM +0000, Julien Grall wrote:
> Hi,
> 
> On 03/14/2018 12:32 PM, Wei Liu wrote:
> > Gcc with -O3 failed to spot the loop to initialise p2m_size runs at
> > least once.
> 
> Aside, Andrew's comment the patch looks okay. But I am wondering why we need
> to allocate p2m_host for Arm?
> 

Not sure, really. :-)

> From a quick look I have seen no real user except xc_dom_update_guest_p2m
> that can cope with p2m_host = NULL.
> 

Maybe it is to work around this limitation in code.

Wei.

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