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lib: Allow overriding SBI implementation ID

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Ideally, the SBI implementation ID for OpenSBI should always be
0x1 (as mentioned in SBI v0.2 spec) but external firmware (such
as EDK2) which use OpenSBI as library might want to override the
SBI implementation ID with their custom implementation ID.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
Anup Patel
2020-04-17 15:10:10 +05:30
committed by Anup Patel
parent 615587c336
commit 66d018499c
3 changed files with 17 additions and 1 deletions
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4
include/sbi/sbi_ecall.h
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@@ -42,6 +42,10 @@ u16 sbi_ecall_version_major(void);
u16 sbi_ecall_version_minor(void);
unsigned long sbi_ecall_get_impid(void);
void sbi_ecall_set_impid(unsigned long impid);
struct sbi_ecall_extension *sbi_ecall_find_extension(unsigned long extid);
int sbi_ecall_register_extension(struct sbi_ecall_extension *ext);