KVM: arm64: Handle FFA_RXTX_MAP and FFA_RXTX_UNMAP calls from the host

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Handle FFA_RXTX_MAP and FFA_RXTX_UNMAP calls from the host by sharing
the host's mailbox memory with the hypervisor and establishing a
separate pair of mailboxes between the hypervisor and the SPMD at EL3.

Co-developed-by: Andrew Walbran <qwandor@google.com>
Signed-off-by: Andrew Walbran <qwandor@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20230523101828.7328-5-will@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>

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Will Deacon 2023-05-23 11:18:21 +01:00 • committed by Oliver Upton

parent bc3888a0f4

commit 9d0c6a9af9

2 changed files with 196 additions and 0 deletions

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188

arch/arm64/kvm/hyp/nvhe/ffa.c

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8

include/linux/arm_ffa.h

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