Searched hist:c55b519ed87997f8136ebce6d39e08d08a6e9a2a (Results 1 – 2 of 2) sorted by relevance
| /rk3399_ARM-atf/services/std_svc/spm/el3_spmc/ |
| H A D | spmc.h | c55b519ed87997f8136ebce6d39e08d08a6e9a2a Fri Oct 17 00:47:58 UTC 2025 Andrei Homescu <ahomescu@xwf.google.com> fix(el3-spmc): validate fragment offset
Per Table 4.3 of DEN 0140 1.3ALP0, the fragment offset passed to
FFA_MEM_FRAG_RX has the following requirement:
Offset must be equal to one of the following:
– The number of bytes of the transaction descriptor
transmitted prior to the invocation of this
interface.
– The offset used in the previous invocation of this
interface. This allows the Sender to re-transmit
the previous fragment if the Receiver could not
receive it due to an IMPLEMENTATION DEFINED
reason.
Keep track of the last and next fragment offsets between calls
to FFA_MEM_RETRIEVE_REQ and FFA_MEM_FRAG_RX and validate the
fragment offset, returning INVALID_PARAMETERS if it doesn't match
one of the two expected values.
BREAKING CHANGE: no longer accepts invalid fragment offsets
Change-Id: If549bb62a1960e9367d14bae842cb4e289429669
Signed-off-by: Andrei Homescu <ahomescu@xwf.google.com>
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| H A D | spmc_shared_mem.c | c55b519ed87997f8136ebce6d39e08d08a6e9a2a Fri Oct 17 00:47:58 UTC 2025 Andrei Homescu <ahomescu@xwf.google.com> fix(el3-spmc): validate fragment offset
Per Table 4.3 of DEN 0140 1.3ALP0, the fragment offset passed to
FFA_MEM_FRAG_RX has the following requirement:
Offset must be equal to one of the following:
– The number of bytes of the transaction descriptor
transmitted prior to the invocation of this
interface.
– The offset used in the previous invocation of this
interface. This allows the Sender to re-transmit
the previous fragment if the Receiver could not
receive it due to an IMPLEMENTATION DEFINED
reason.
Keep track of the last and next fragment offsets between calls
to FFA_MEM_RETRIEVE_REQ and FFA_MEM_FRAG_RX and validate the
fragment offset, returning INVALID_PARAMETERS if it doesn't match
one of the two expected values.
BREAKING CHANGE: no longer accepts invalid fragment offsets
Change-Id: If549bb62a1960e9367d14bae842cb4e289429669
Signed-off-by: Andrei Homescu <ahomescu@xwf.google.com>
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