| Message ID | 20230217144413.3720307-4-mchitale@ventanamicro.com |
|---|---|
| State | Changes Requested |
| Headers | show |
| Series | SBI PMU firmware counters and events improvement | expand |
On Fri, Feb 17, 2023 at 6:44 AM Mayuresh Chitale <mchitale@ventanamicro.com> wrote: > > 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> > --- > 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 f5d6667..5732419 100644 > --- a/include/sbi/sbi_ecall_interface.h > +++ b/include/sbi/sbi_ecall_interface.h > @@ -183,6 +183,17 @@ 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 > > > -- > opensbi mailing list > opensbi@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/opensbi Reviewed-by: Atish Patra <atishp@rivosinc.com>
diff --git a/include/sbi/sbi_ecall_interface.h b/include/sbi/sbi_ecall_interface.h index f5d6667..5732419 100644 --- a/include/sbi/sbi_ecall_interface.h +++ b/include/sbi/sbi_ecall_interface.h @@ -183,6 +183,17 @@ 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 */
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> --- include/sbi/sbi_ecall_interface.h | 11 +++++++++++ 1 file changed, 11 insertions(+)