From: Ian Campbell <ian.campbell@citrix.com>
To: xen-devel@lists.xen.org
Cc: julien.grall@linaro.org, tim@xen.org,
Ian Campbell <ian.campbell@citrix.com>,
andre.przywara@linaro.org, stefano.stabellini@eu.citrix.com
Subject: [PATCH v2 5/9] xen/arm: cope with modules outside of "visible" RAM
Date: Fri, 13 Sep 2013 12:40:33 +0100 [thread overview]
Message-ID: <1379072437-28099-5-git-send-email-ian.campbell@citrix.com> (raw)
In-Reply-To: <1379072409.19256.40.camel@kazak.uk.xensource.com>
This can happen if modules are in a bank which we can't cope with e.g. due to
being non-contiguous.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
---
xen/arch/arm/setup.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/xen/arch/arm/setup.c b/xen/arch/arm/setup.c
index 8d8028c..0d9eaf7 100644
--- a/xen/arch/arm/setup.c
+++ b/xen/arch/arm/setup.c
@@ -387,6 +387,12 @@ static void __init setup_mm(unsigned long dtb_paddr, size_t dtb_size)
e = n = ram_end;
}
+ /* Module in RAM which we cannot see here, due to not handling
+ * non-contiguous memory regions yes
+ */
+ if ( e > ram_end )
+ e = ram_end;
+
/* Avoid the xenheap */
if ( s < ((xenheap_mfn_start+xenheap_pages) << PAGE_SHIFT)
&& (xenheap_mfn_start << PAGE_SHIFT) < e )
--
1.7.10.4
next prev parent reply other threads:[~2013-09-13 11:40 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-13 11:40 [PATCH v2 0/9] xen: arm: memory mangement fixes / improvements Ian Campbell
2013-09-13 11:40 ` [PATCH v2 1/9] xen/arm: ensure the xenheap is 32MB aligned Ian Campbell
2013-09-13 11:40 ` [PATCH v2 2/9] xen/arm: DOMHEAP_SECOND_PAGES is arm32 specific Ian Campbell
2013-09-13 12:55 ` Julien Grall
2013-09-13 11:40 ` [PATCH v2 3/9] xen/arm: Reserve FDT via early module mechanism Ian Campbell
2013-09-13 13:04 ` Julien Grall
2013-09-13 13:08 ` Ian Campbell
2013-09-13 11:40 ` [PATCH v2 4/9] xen/arm: do not relocate Xen outside of visible RAM Ian Campbell
2013-09-13 13:06 ` Julien Grall
2013-09-13 11:40 ` Ian Campbell [this message]
2013-09-13 13:08 ` [PATCH v2 5/9] xen/arm: cope with modules outside of "visible" RAM Julien Grall
2013-09-13 11:40 ` [PATCH v2 6/9] xen/arm: Support dtb /memreserve/ regions Ian Campbell
2013-09-13 11:40 ` [PATCH v2 7/9] xen/arm: rename boot misc region to boot reloc now it has a single purpose Ian Campbell
2013-09-13 13:17 ` Julien Grall
2013-09-13 11:40 ` [PATCH v2 8/9] xen/arm: print the location of the Xen heap on 32 bit Ian Campbell
2013-09-13 13:20 ` Julien Grall
2013-09-13 11:40 ` [PATCH v2 9/9] xen: support RAM at addresses 0 and 4096 Ian Campbell
2013-09-13 11:48 ` Keir Fraser
2013-09-13 11:57 ` Jan Beulich
2013-09-13 12:23 ` Ian Campbell
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