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ArmPkg: Allow FF-A calls to get memory region's attributes

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Allow getting memory region's permissions using either of the Firmware
Framework(FF-A) ABI transport or through the earlier used SVC calls.

Signed-off-by: Achin Gupta <achin.gupta@arm.com>
Co-developed-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
This commit is contained in:
Achin Gupta
2021-02-19 12:06:04 +05:30
committed by mergify[bot]
parent 67f3f8b661
commit 0e43e02b9b
3 changed files with 95 additions and 8 deletions
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18
ArmPkg/Include/IndustryStandard/ArmFfaSvc.h
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@@ -23,4 +23,22 @@
#define SPM_MAJOR_VERSION_FFA 1
#define SPM_MINOR_VERSION_FFA 0
#define ARM_FFA_SPM_RET_SUCCESS 0
#define ARM_FFA_SPM_RET_NOT_SUPPORTED -1
#define ARM_FFA_SPM_RET_INVALID_PARAMETERS -2
#define ARM_FFA_SPM_RET_NO_MEMORY -3
#define ARM_FFA_SPM_RET_BUSY -4
#define ARM_FFA_SPM_RET_INTERRUPTED -5
#define ARM_FFA_SPM_RET_DENIED -6
#define ARM_FFA_SPM_RET_RETRY -7
#define ARM_FFA_SPM_RET_ABORTED -8
// For now, the destination id to be used in the FF-A calls
// is being hard-coded. Subsequently, support will be added
// to get the endpoint id's dynamically
// This is the endpoint id used by the optee os's implementation
// of the spmc.
// https://github.com/OP-TEE/optee_os/blob/master/core/arch/arm/kernel/stmm_sp.c#L66
#define ARM_FFA_DESTINATION_ENDPOINT_ID 3
#endif // ARM_FFA_SVC_H_