xen/xenbus: Fix granting of vmalloc'd memory

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On some architectures (like ARM), virt_to_gfn cannot be used for
vmalloc'd memory because of its reliance on virt_to_phys. This patch
introduces a check for vmalloc'd addresses and obtains the PFN using
vmalloc_to_pfn in that case.

Signed-off-by: Simon Leiner <simon@leiner.me>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Link: https://lore.kernel.org/r/20200825093153.35500-1-simon@leiner.me
Signed-off-by: Juergen Gross <jgross@suse.com>

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Simon Leiner 2020-08-25 11:31:52 +02:00 • committed by Juergen Gross

parent c330fb1ddc

commit d742db7003

1 changed files with 8 additions and 2 deletions

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drivers/xen/xenbus/xenbus_client.c

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