Re: [Xen-devel] [PATCH v5 1/2] add a new p2m type class - P2M_DISCARD_WRITE_TYPES

[Tim Deegan <tim@xxxxxxx>]

At 21:13 +0800 on 04 Dec (1417724005), Yu Zhang wrote:
> From: Yu Zhang <yu.c.zhang@xxxxxxxxx>
> 
> Currently, the P2M_RO_TYPES bears 2 meanings: one is
> "_PAGE_RW bit is clear in their PTEs", and another is
> to discard the write operations on these pages. This
> patch adds a p2m type class, P2M_DISCARD_WRITE_TYPES,
> to bear the second meaning, so we can use this type
> class instead of the P2M_RO_TYPES, to decide if a write
> operation is to be ignored.
> 
> Signed-off-by: Yu Zhang <yu.c.zhang@xxxxxxxxxxxxxxx>

Reviewed-by: Tim Deegan <tim@xxxxxxx>


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