From 60c358e6774847629cd608a8841c4e7752b4949a Mon Sep 17 00:00:00 2001 From: Mayuresh Chitale Date: Thu, 9 Mar 2023 18:43:53 +0530 Subject: 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 Reviewed-by: Atish Patra Reviewed-by: Anup Patel --- include/sbi/sbi_ecall_interface.h | 11 +++++++++++ 1 file changed, 11 insertions(+) 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 */ -- cgit v1.2.3