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Re: [XEN v1] Xen: Enable compilation when PADDR_BITS == BITS_PER_LONG
- To: Julien Grall <julien@xxxxxxx>, Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 1 Dec 2022 12:44:36 +0100
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- Delivery-date: Thu, 01 Dec 2022 11:44:50 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 01.12.2022 11:26, Julien Grall wrote:
> On 01/12/2022 10:03, Ayan Kumar Halder wrote:
>> --- a/xen/common/page_alloc.c
>> +++ b/xen/common/page_alloc.c
>> @@ -2245,7 +2245,7 @@ void __init xenheap_max_mfn(unsigned long mfn)
>> {
>> ASSERT(!first_node_initialised);
>> ASSERT(!xenheap_bits);
>> - BUILD_BUG_ON(PADDR_BITS >= BITS_PER_LONG);
>> + BUILD_BUG_ON(PADDR_BITS > BITS_PER_LONG);
>
> Based on the above, I think this wants to be "(PADDR_BITS - PAGE_SHIFT)
> >= BITS_PER_LONG)".
+1, fwiw.
Jan
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