tree bf05d8261b0cf24ff0aeedb94965283e7e61ed81
parent 609ee9066879f2ff7138c825588a4bc5d2f83658
author Jean-Philippe Brucker <jean-philippe.brucker@arm.com> 1654621341 +0100
committer Will Deacon <will@kernel.org> 1654778654 +0100

virtio: Add config access helpers

At the moment device-specific config access is tailored for a Linux
guest, that performs any access in 8 bits. But config access can have
any size, and modern virtio drivers must use the size of the accessed
field. Add helpers that generalize config accesses.

Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Link: https://lore.kernel.org/r/20220607170239.120084-7-jean-philippe.brucker@arm.com
Signed-off-by: Will Deacon <will@kernel.org>