On 04/09/2018 04:25 PM, Tom Rini wrote:
On Mon, Apr 09, 2018 at 04:11:01PM +0300, Michalis Pappas wrote:
This patch adds smc and hvc commands, that allow issuing Secure Monitor Calls and Hypervisor Calls conforming to the ARM SMC Calling Convention.
Add Kconfig items to allow each command can be individually enabled.
Signed-off-by: Michalis Pappas mpappas@fastmail.fm
cmd/Kconfig | 14 ++++++++++ cmd/Makefile | 2 ++ cmd/smccc.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 88 insertions(+) create mode 100644 cmd/smccc.c
diff --git a/cmd/Kconfig b/cmd/Kconfig index 136836d146..a2b09620f3 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -1348,6 +1348,20 @@ config CMD_HASH saved to memory or to an environment variable. It is also possible to verify a hash against data in memory.
+config CMD_HVC
- bool "Support the 'hvc' command"
- depends on ARM64
- help
Allows issuing Hypervisor Calls (HVCs). Mostly useful fordevelopment and testing.+config CMD_SMC
- bool "Support the 'smc' command"
- depends on ARM64
- help
Allows issuing Secure Monitor Calls (SMCs). Mostly useful fordevelopment and testing.Sorry for not catching this before, in both cases we should depend on ARM_SMCC as that's what provides the underlying functions and is available on both ARMv7 and ARMv8.
Ah, you're right, I should had spotted that too. Will replace the ARM64 dependendy with ARM_SMCCC and issue another patch.
Thanks