diff options
| author | Will Deacon <will@kernel.org> | 2023-05-23 11:18:21 +0100 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2023-06-01 21:34:51 +0000 |
| commit | 9d0c6a9af9e38efa675e565bd181794deca1188a (patch) | |
| tree | a0b6a1be0916d2836d462d9ae2aac578bb9ef51a /include/linux/arm_ffa.h | |
| parent | bc3888a0f4e979ecf9dd8c33a84b8da8cc130790 (diff) | |
KVM: arm64: Handle FFA_RXTX_MAP and FFA_RXTX_UNMAP calls from the host
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>
Diffstat (limited to 'include/linux/arm_ffa.h')
| -rw-r--r-- | include/linux/arm_ffa.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h index c87aeecaa9b2..b9f81035eb41 100644 --- a/include/linux/arm_ffa.h +++ b/include/linux/arm_ffa.h @@ -94,6 +94,14 @@ */ #define FFA_PAGE_SIZE SZ_4K +/* + * Minimum buffer size/alignment encodings returned by an FFA_FEATURES + * query for FFA_RXTX_MAP. + */ +#define FFA_FEAT_RXTX_MIN_SZ_4K 0 +#define FFA_FEAT_RXTX_MIN_SZ_64K 1 +#define FFA_FEAT_RXTX_MIN_SZ_16K 2 + /* FFA Bus/Device/Driver related */ struct ffa_device { int vm_id; |