diff options
| author | Olivier Deprez <olivier.deprez@arm.com> | 2019-11-29 14:21:48 +0100 |
|---|---|---|
| committer | Olivier Deprez <olivier.deprez@arm.com> | 2020-03-23 10:19:59 +0100 |
| commit | afcdb7ce1a76978f001be8e8e162c20f71868753 (patch) | |
| tree | 59354b6b58d89386712bf3a366318df863a73fe6 /spm/cactus/aarch64 | |
| parent | 61be4c1ce08b68577d6ea3df2c34357b5b98a547 (diff) | |
cactus: update to SPCI Beta1 and add sample direct messaging test
The scenario is: TFTF (acting as an "hypervisor" at NS-EL2) sends a
direct message request to an SP targetting its SP ID. SPMD/SPMC relays
the message down to SP. SP extracts the message payload, amends it and
sends a direct message response to TFTF that SPMC/SPMD relay back to
TFTF. This sample SP can be instantiated into multiple SPs. The early
main entry flow discriminates the first VM from other secondary VMs by
getting its running id through SPCI_ID_GET. The SP runs an infinite
message loop and waits for a new message by calling SPCI_MSG_WAIT.
Notice SPCI_MSG_WAIT is also the hint to SPMD that the SP initialized
properly. About logging, only PVM for now has direct access to UART.
2nd VMs must use the debug log hypervisor call.
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I001261c3f54e0bc217e43fca6812d6cda1ac4430
Diffstat (limited to 'spm/cactus/aarch64')
| -rw-r--r-- | spm/cactus/aarch64/cactus_entrypoint.S | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/spm/cactus/aarch64/cactus_entrypoint.S b/spm/cactus/aarch64/cactus_entrypoint.S index 214b4cf..7d6b6b2 100644 --- a/spm/cactus/aarch64/cactus_entrypoint.S +++ b/spm/cactus/aarch64/cactus_entrypoint.S @@ -21,6 +21,12 @@ func cactus_entrypoint adr x0, stacks_end mov sp, x0 + /* Enable I-Cache */ + mrs x0, sctlr_el1 + orr x0, x0, #SCTLR_I_BIT + msr sctlr_el1, x0 + isb + /* And jump to the C entrypoint. */ b cactus_main |