From f58c14090f79b5d3bde86573c979a019bbd7421d Mon Sep 17 00:00:00 2001 From: Andrew Jones Date: Mon, 15 May 2023 13:12:34 +0200 Subject: lib: sbi: Introduce register_extensions extension callback Rather than registering all extensions on their behalf in sbi_ecall_init(), introduce another extension callback and invoke that instead. For now, implement each callback by simply registering the extension, which means this patch has no intended functional change. In later patches, extension callbacks will be modified to choose when to register and to possibly narrow the extension ID range prior to registering. When an extension range needs to remove IDs, leaving gaps, then multiple invocations of sbi_ecall_register_extension() may be used. In summary, later patches for current extensions and the introductions of future extensions will use the new callback to ensure that only valid extension IDs from the initial range, which are also available, will be registered. Signed-off-by: Andrew Jones Reviewed-by: Anup Patel --- lib/sbi/sbi_ecall_hsm.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'lib/sbi/sbi_ecall_hsm.c') diff --git a/lib/sbi/sbi_ecall_hsm.c b/lib/sbi/sbi_ecall_hsm.c index f1b41d0..20705c3 100644 --- a/lib/sbi/sbi_ecall_hsm.c +++ b/lib/sbi/sbi_ecall_hsm.c @@ -54,8 +54,16 @@ static int sbi_ecall_hsm_handler(unsigned long extid, unsigned long funcid, return ret; } +struct sbi_ecall_extension ecall_hsm; + +static int sbi_ecall_hsm_register_extensions(void) +{ + return sbi_ecall_register_extension(&ecall_hsm); +} + struct sbi_ecall_extension ecall_hsm = { - .extid_start = SBI_EXT_HSM, - .extid_end = SBI_EXT_HSM, - .handle = sbi_ecall_hsm_handler, + .extid_start = SBI_EXT_HSM, + .extid_end = SBI_EXT_HSM, + .register_extensions = sbi_ecall_hsm_register_extensions, + .handle = sbi_ecall_hsm_handler, }; -- cgit v1.1