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| author | Marc Bonnici <marc.bonnici@arm.com> | 2021-08-19 14:42:19 +0100 |
|---|---|---|
| committer | Marc Bonnici <marc.bonnici@arm.com> | 2021-10-06 16:00:34 +0100 |
| commit | 72ed8b7329c2167b46d6b90fca83a476486d704d (patch) | |
| tree | 6531fa4920412588b0c2fca5c4ef224aa2ee54f8 | |
| parent | a6f2c49b0afc902c7455e98949869a2d64ad06a3 (diff) | |
| download | arm-trusted-firmware-72ed8b7329c2167b46d6b90fca83a476486d704d.tar.gz | |
lsp: Add Test Logical Partition with echo
Add an example logical partition that simply prints and
echos the contents of a direct_request with the appropriate
direct response.
Change-Id: Ib2052c9a63a74830e5e83bd8c128c5f9b0d94658
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
| -rw-r--r-- | services/std_svc/spm/common/logical_sp_test.c | 43 | ||||
| -rw-r--r-- | services/std_svc/spm/common/spm.mk | 3 |
2 files changed, 45 insertions, 1 deletions
diff --git a/services/std_svc/spm/common/logical_sp_test.c b/services/std_svc/spm/common/logical_sp_test.c new file mode 100644 index 000000000..f30471f4f --- /dev/null +++ b/services/std_svc/spm/common/logical_sp_test.c @@ -0,0 +1,43 @@ +#include <common/debug.h> +#include <smccc_helpers.h> +#include <services/ffa_svc.h> +#include <services/logical_sp.h> + +#define LP_PARTITION_ID 0xC000 +#define LP_UUID {0x0, 0x0, 0x0, 0x12} + +static int64_t sp_init(void) { + // TODO: Do some initialisation. + INFO("LSP: Init function called.\n"); + return 0; +} + +static uint64_t handle_ffa_direct_request(uint32_t smc_fid, bool secure_origin, uint64_t x1, uint64_t x2, + uint64_t x3, uint64_t x4, void *cookie, void *handle, uint64_t flags) { + uint64_t ret; + + /* Determine if we have a 64 or 32 direct request. */ + if (smc_fid == FFA_MSG_SEND_DIRECT_REQ_SMC32) { + ret = FFA_MSG_SEND_DIRECT_RESP_SMC32; + } else if (smc_fid == FFA_MSG_SEND_DIRECT_REQ_SMC64) { + ret = FFA_MSG_SEND_DIRECT_RESP_SMC64; + } + else { + panic(); // Unknown SMC + } + /* TODO: Do something with the request. - Echo only*/ + INFO("Logical Partition: Received Direct Request from %s world!\n", secure_origin ? "Secure" : "Normal"); + + /* SP's must always respond to their calls so we can populate our response directly. */ + SMC_RET8(handle, ret, 0, 0, x4, 0, 0, 0, 0); +} + +/* Register logical partition */ +DECLARE_LOGICAL_PARTITION( + my_logical_partition, + sp_init, // Init Function + LP_PARTITION_ID, // FFA Partition ID + LP_UUID, // UUID + 0x1, // Partition Properties. Can only receive direct messages. + handle_ffa_direct_request // Callback for direct requests. +); diff --git a/services/std_svc/spm/common/spm.mk b/services/std_svc/spm/common/spm.mk index 1f2a1beb3..31cb732b3 100644 --- a/services/std_svc/spm/common/spm.mk +++ b/services/std_svc/spm/common/spm.mk @@ -15,7 +15,8 @@ SPM_SOURCES := $(addprefix services/std_svc/spm/common/,\ ${ARCH}/spm_shim_exceptions.S \ spm_common.c \ spm_setup.c \ - spm_xlat.c) + spm_xlat.c \ + logical_sp_test.c) # logical_mm_sp.c) |