mirrors/arm-trusted-firmware
0
0
Fork 0
mirror of https://github.com/ARM-software/arm-trusted-firmware.git synced 2024-11-30 13:25:01 +08:00
Code Issues Packages Projects Releases Wiki Activity

fix(el3-spm): fix LSP direct message response

Browse Source 
Ensure that the example LSP correctly sets the
sender/receiver field in a direct response.

Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I482c08d4657617adb00b0f3cf3c8ddc84f1bf7c8
This commit is contained in:
Marc Bonnici 2022-11-15 11:20:59 +00:00
parent 48fe24c50c
commit c040621dba
1 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
plat/arm/board/fvp/fvp_el3_spmc_logical_sp.c
View File

@ -27,6 +27,7 @@ static uint64_t handle_ffa_direct_request(uint32_t smc_fid, bool secure_origin,
void *handle, uint64_t flags)
{
uint64_t ret;
uint32_t src_dst;
/* Determine if we have a 64 or 32 direct request. */
if (smc_fid == FFA_MSG_SEND_DIRECT_REQ_SMC32) {
@ -36,18 +37,22 @@ static uint64_t handle_ffa_direct_request(uint32_t smc_fid, bool secure_origin,
} else {
panic(); /* Unknown SMC. */
}
/*
* Handle the incoming request. For testing purposes we echo the
* incoming message.
*/
INFO("Logical Partition: Received Direct Request from %s world!\n",
secure_origin ? "Secure" : "Normal");
INFO("LSP: Received Direct Request from %s world (0x%x)\n",
secure_origin ? "Secure" : "Normal", ffa_endpoint_source(x1));
/* Populate the source and destination IDs. */
src_dst = (uint32_t) LP_PARTITION_ID << FFA_DIRECT_MSG_SOURCE_SHIFT |
ffa_endpoint_source(x1) << FFA_DIRECT_MSG_DESTINATION_SHIFT;
/*
* Logical SP's must always send a direct response so we can populate
* our response directly.
*/
SMC_RET8(handle, ret, 0, 0, x4, 0, 0, 0, 0);
SMC_RET8(handle, ret, src_dst, 0, x4, 0, 0, 0, 0);
}
/* Register logical partition */