From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mayuresh Chitale Date: Thu, 9 Mar 2023 11:21:07 +0530 Subject: [PATCH v3 3/8] lib: sbi_pmu: Reserve space for implementation specific firmware events In-Reply-To: <20230309055112.1516581-1-mchitale@ventanamicro.com> References: <20230309055112.1516581-1-mchitale@ventanamicro.com> Message-ID: <20230309055112.1516581-4-mchitale@ventanamicro.com> List-Id: To: opensbi@lists.infradead.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit 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 --- 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..8d1cb97 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 */ -- 2.34.1