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lib: Provide a platform hook to implement vendor specific SBI extensions.

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SBI v0.2 specification allows vendor extensions and it should be
implemented in a independent of the core sbi library.

Introduce a single platform callback that will let platforms handle
all vendor extensions in platform specific code if they want.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
This commit is contained in:
Atish Patra
2019-10-02 13:59:40 -07:00
committed by Anup Patel
parent 0790be0f2c
commit 30f09fbfd1
3 changed files with 86 additions and 3 deletions
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2
include/sbi/sbi_ecall_interface.h
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@@ -38,6 +38,8 @@ enum sbi_ext_base_fid {
#define SBI_SPEC_VERSION_MAJOR_OFFSET 24
#define SBI_SPEC_VERSION_MAJOR_MASK 0x7f
#define SBI_SPEC_VERSION_MINOR_MASK 0xffffff
#define SBI_EXT_VENDOR_START 0x09000000
#define SBI_EXT_VENDOR_END 0x09FFFFFF
/* clang-format on */
#endif