[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 3/6] xen: arm: map entire memory banks on arm64
On 10/10/2013 03:43 PM, Ian Campbell wrote: Currently we only map regions which are not part of boot modules. However we subsequently free at least some of those modules to the heaps in discard_initial_modules and if we were unluckly with sizing/location we might end up adding unmapped pages to the heap. The heaps on 64-bit use 1GB mappings, so in practice this is probably pretty unlikely and I've not actually seen it. Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx> Acked-by: Julien Grall <julien.grall@xxxxxxxxxx> --- xen/arch/arm/setup.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/xen/arch/arm/setup.c b/xen/arch/arm/setup.c index 49f344c..6300802 100644 --- a/xen/arch/arm/setup.c +++ b/xen/arch/arm/setup.c @@ -519,6 +519,8 @@ static void __init setup_mm(unsigned long dtb_paddr, size_t dtb_size) xenheap_pages += (bank_size >> PAGE_SHIFT); + setup_xenheap_mappings(bank_start>>PAGE_SHIFT, bank_size>>PAGE_SHIFT); + /* XXX we assume that the ram regions are ordered */ s = bank_start; while ( s < bank_end ) @@ -535,8 +537,6 @@ static void __init setup_mm(unsigned long dtb_paddr, size_t dtb_size) if ( e > bank_end ) e = bank_end; - setup_xenheap_mappings(s>>PAGE_SHIFT, (e-s)>>PAGE_SHIFT); - xenheap_mfn_end = e; dt_unreserved_regions(s, e, init_boot_pages, 0); -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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