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Re: [PATCH v2 (resend) 04/27] acpi: vmap pages in acpi_os_alloc_memory
- To: Elias El Yandouzi <eliasely@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 25 Jan 2024 17:28:25 +0100
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- Cc: julien@xxxxxxx, pdurrant@xxxxxxxxxx, dwmw@xxxxxxxxxx, Hongyan Xia <hongyxia@xxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Julien Grall <jgrall@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 25 Jan 2024 16:28:32 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 16.01.2024 20:25, Elias El Yandouzi wrote:
> From: Hongyan Xia <hongyxia@xxxxxxxxxx>
>
> Also, introduce a wrapper around vmap that maps a contiguous range for
> boot allocations. Unfortunately, the new helper cannot be a static inline
> because the dependencies are a mess. We would need to re-include
> asm/page.h (was removed in aa4b9d1ee653 "include: don't use asm/page.h
> from common headers") and it doesn't look to be enough anymore
> because bits from asm/cpufeature.h is used in the definition of PAGE_NX.
>
> Lastly, with the move to vmap(), it is now easier to find the size
> of the mapping. So pass the whole area to init_boot_pages() rather than
> just the first page.
>
> Signed-off-by: Hongyan Xia <hongyxia@xxxxxxxxxx>
> Signed-off-by: Julien Grall <jgrall@xxxxxxxxxx>
> Signed-off-by: Elias El Yandouzi <eliasely@xxxxxxxxxx>
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
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