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Re: [Xen-devel] [PATCH 4/8] xen/arm: Add support for read-only foreign mappings

чт, 15 лист. 2018 о 13:40 Julien Grall <julien.grall@xxxxxxx> пише:
> If I drop _t then I need to add if ( *t ) in 3 places in that code. So I
> don't think the approach is any better.
Ouch, I kept in my mind two places.

Something like:

if ( t )
    *t = p2m_invalid;
if ( t )
    *t = ( page->u.inuse.type_info & PGT_writable_page ) ? p2m_ram_rw
: p2m_ram_ro;

Andrii Anisov.

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