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| author | Vamsi Krishna Gattupalli <quic_vgattupa@quicinc.com> | 2022-02-14 17:09:58 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-18 14:11:00 +0100 |
| commit | e90d911906196bf987492c94e38f10ca611dfd7b (patch) | |
| tree | 7d560447127af4af3959120e2424b8847a480bb8 /include/uapi/misc | |
| parent | dt-bindings: misc: add fastrpc domain vmid property (diff) | |
| download | linux-e90d911906196bf987492c94e38f10ca611dfd7b.tar.xz linux-e90d911906196bf987492c94e38f10ca611dfd7b.zip | |
misc: fastrpc: Add support to secure memory map
This patch adds support to secure memory allocations for DSP.
It repurposes the reserved field in struct fastrpc_invoke_args
to add attributes to invoke request, for example to setup a secure memory
map for dsp. Secure memory is assigned to DSP Virtual Machine IDs using
Qualcomm SCM calls.
Signed-off-by: Vamsi Krishna Gattupalli <quic_vgattupa@quicinc.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220214161002.6831-9-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi/misc')
| -rw-r--r-- | include/uapi/misc/fastrpc.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/uapi/misc/fastrpc.h b/include/uapi/misc/fastrpc.h index f39edac20305..5e29f2cfa42d 100644 --- a/include/uapi/misc/fastrpc.h +++ b/include/uapi/misc/fastrpc.h @@ -63,11 +63,14 @@ enum fastrpc_proc_attr { FASTRPC_MODE_PRIVILEGED = (1 << 6), }; +/* Fastrpc attribute for memory protection of buffers */ +#define FASTRPC_ATTR_SECUREMAP (1) + struct fastrpc_invoke_args { __u64 ptr; __u64 length; __s32 fd; - __u32 reserved; + __u32 attr; }; struct fastrpc_invoke { |