feat(spmc): add support for FF-A power mgmt. messages in the EL3 SPMC
This patch adds support for forwarding the following PSCI messages
received by the SPMC at EL3 to the S-EL1 SP if the SP has indicated
that it wishes to receive the appropriate message via its manifest.
1. A PSCI CPU_OFF message in response to a cpu hot unplug request
from the OS.
2. A message to indicate warm boot of a cpu in response to a cpu
hot plug request from the OS.
3. A PSCI CPU_SUSPEND message in response to a cpu idle event
initiated from the OS.
4. A message to indicate warm boot of a cpu from a shallow power
state in response to a cpu resume power event.
This patch also implements the FFA_SECONDARY_EP_REGISTER function to
enable the SP specify its secondary entrypoint.
Signed-off-by: Achin Gupta <achin.gupta@arm.com>
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I375d0655b2c6fc27445facc39213d1d0678557f4
diff --git a/services/std_svc/spmd/spmd_main.c b/services/std_svc/spmd/spmd_main.c
index 777a962..745c949 100644
--- a/services/std_svc/spmd/spmd_main.c
+++ b/services/std_svc/spmd/spmd_main.c
@@ -684,7 +684,7 @@
(SMC_GET_GP(gpregs, CTX_GPREG_X0) !=
FFA_MSG_SEND_DIRECT_RESP_SMC32) ||
(SMC_GET_GP(gpregs, CTX_GPREG_X2) !=
- (SPMD_FWK_MSG_BIT |
+ (FFA_FWK_MSG_BIT |
SPMD_FWK_MSG_FFA_VERSION_RESP))) {
ERROR("Failed to forward FFA_VERSION\n");
ret = FFA_ERROR_NOT_SUPPORTED;
diff --git a/services/std_svc/spmd/spmd_pm.c b/services/std_svc/spmd/spmd_pm.c
index b719161..a2704dd 100644
--- a/services/std_svc/spmd/spmd_pm.c
+++ b/services/std_svc/spmd/spmd_pm.c
@@ -123,7 +123,7 @@
/* Build an SPMD to SPMC direct message request. */
spmd_build_spmc_message(get_gpregs_ctx(&ctx->cpu_ctx),
- SPMD_FWK_MSG_PSCI, PSCI_CPU_OFF);
+ FFA_FWK_MSG_PSCI, PSCI_CPU_OFF);
rc = spmd_spm_core_sync_entry(ctx);
if (rc != 0ULL) {
diff --git a/services/std_svc/spmd/spmd_private.h b/services/std_svc/spmd/spmd_private.h
index 4c298c9..07fecb6 100644
--- a/services/std_svc/spmd/spmd_private.h
+++ b/services/std_svc/spmd/spmd_private.h
@@ -59,8 +59,6 @@
#define FFA_NS_ENDPOINT_ID U(0)
/* Define SPMD target function IDs for framework messages to the SPMC */
-#define SPMD_FWK_MSG_BIT BIT(31)
-#define SPMD_FWK_MSG_PSCI U(0)
#define SPMD_FWK_MSG_FFA_VERSION_REQ U(0x8)
#define SPMD_FWK_MSG_FFA_VERSION_RESP U(0x9)