From: Julien Grall Date: Wed, 21 Feb 2018 14:18:44 +0000 (+0000) Subject: xen/arm: p2m: Allow to flush cache on any RAM region X-Git-Tag: archive/raspbian/4.14.0+80-gd101b417b7-1+rpi1^2~63^2~2758 X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https:/%22bookmarks:///%22http:/www.example.com/cgi/%22https:/%22bookmarks:/?a=commitdiff_plain;h=cd851472876ded5b5d10f83a29988f4d2302adea;p=xen.git xen/arm: p2m: Allow to flush cache on any RAM region Currently, we only allow to flush cache on regions mapped as p2m_ram_{rw,ro}. There are no real problem in cache flushing any RAM regions such as grants and foreign mapping. Therefore, relax the check to allow flushing the cache on any RAM region. Signed-off-by: Julien Grall Reviewed-by: Stefano Stabellini --- diff --git a/xen/arch/arm/p2m.c b/xen/arch/arm/p2m.c index 836157292c..4e0ddbf70b 100644 --- a/xen/arch/arm/p2m.c +++ b/xen/arch/arm/p2m.c @@ -1539,7 +1539,7 @@ int p2m_cache_flush_range(struct domain *d, gfn_t start, gfn_t end) next_gfn = gfn_next_boundary(start, order); /* Skip hole and non-RAM page */ - if ( mfn_eq(mfn, INVALID_MFN) || !p2m_is_ram(t) ) + if ( mfn_eq(mfn, INVALID_MFN) || !p2m_is_any_ram(t) ) continue; /* XXX: Implement preemption */