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lib: sbi_pmu: Reserve space for implementation specific firmware events

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We reserve space for SBI implementation specific custom firmware
events which can be used by M-mode firmwares and HS-mode hypervisors
for their own use. This reserved space is intentionally large to
ensure that SBI implementation has enough space to accommodate
platform specific firmware events as well.

Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Mayuresh Chitale
2023-03-09 18:43:53 +05:30
committed by Anup Patel
parent 51951d9e9a
commit 60c358e677
1 changed files with 11 additions and 0 deletions
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11
include/sbi/sbi_ecall_interface.h
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@@ -185,6 +185,17 @@ enum sbi_pmu_fw_event_code_id {
SBI_PMU_FW_HFENCE_VVMA_ASID_SENT = 20,
SBI_PMU_FW_HFENCE_VVMA_ASID_RCVD = 21,
SBI_PMU_FW_MAX,
/*
* Event codes 22 to 255 are reserved for future use.
* Event codes 256 to 65534 are reserved for SBI implementation
* specific custom firmware events.
*/
SBI_PMU_FW_RESERVED_MAX = 0xFFFE,
/*
* Event code 0xFFFF is used for platform specific firmware
* events where the event data contains any event specific information.
*/
SBI_PMU_FW_PLATFORM = 0xFFFF,
};
/** SBI PMU event idx type */