[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v2 1/9] xen/arm: ensure the xenheap is 32MB aligned
My patch 08693f5948d8 "xen: arm: reduce the size of the xen heap to max 1/8 RAM size" unintentionally violated the constraint that the xenheap must be 32MB aligned, since we only explicitly align the end of the heap and xenheap_pages was not a multiple of 32 pages. Round xenheap pages up to a 32MB boundary. Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx> --- xen/arch/arm/setup.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/xen/arch/arm/setup.c b/xen/arch/arm/setup.c index 4b31623..1ba2eb3 100644 --- a/xen/arch/arm/setup.c +++ b/xen/arch/arm/setup.c @@ -323,7 +323,8 @@ static void __init setup_mm(unsigned long dtb_paddr, size_t dtb_size) * constraints. */ heap_pages = (ram_size >> PAGE_SHIFT); - xenheap_pages = max(heap_pages/8, 128UL<<(20-PAGE_SHIFT)); + xenheap_pages = (heap_pages/8 + 0x1fffUL) & ~0x1fffUL; + xenheap_pages = max(xenheap_pages, 128UL<<(20-PAGE_SHIFT)); do { -- 1.7.10.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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