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| author | Mayuresh Chitale <mchitale@ventanamicro.com> | 2023-03-09 16:13:53 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2023-03-10 11:30:22 +0300 |
| commit | 60c358e6774847629cd608a8841c4e7752b4949a (patch) | |
| tree | 636c0d22bf4a7feb909e0d71159b8dbc9a6448e8 | |
| parent | 51951d9e9af86c885cf5564bba7dd83a9a59a3b3 (diff) | |
| download | opensbi-60c358e6774847629cd608a8841c4e7752b4949a.tar.xz | |
lib: sbi_pmu: Reserve space for implementation specific firmware events
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>
| -rw-r--r-- | include/sbi/sbi_ecall_interface.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/sbi/sbi_ecall_interface.h b/include/sbi/sbi_ecall_interface.h index d448212..4597358 100644 --- a/include/sbi/sbi_ecall_interface.h +++ b/include/sbi/sbi_ecall_interface.h @@ -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 */ |