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Re: [Xen-devel] [PATCH] xen: arm: configure correct dom0_gnttab_start/size

Hi Ian,

On 11/09/14 08:21, Ian Campbell wrote:
This just fixes vexpress, I wonder if a followup patch should either remove the
default dom0_gnttab (forcing all platforms to specify one explicitly) or make
the default something less arbitrary than 0xb0000000, e.g. 0x0-0x20000 or
0xfffe0000-0x100000000 (very start or very end of RAM). Perhaps with a command
line option to override for new platform hacking.

Dropping the default value sounds a good solution.

Or maybe we should search for an unused hole in the dom0 RAM space?

I'm not sure to understand your suggestion here. Did you mean that as DOM0 will never use all the host RAM, we could find a space in the RAM to use for grant table?


Julien Grall

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