diff options
| author | Atish Patra <atish.patra@wdc.com> | 2020-02-12 04:32:39 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2020-02-24 15:43:23 +0300 |
| commit | e3f69fc1e934ce7815d9cde2d13dd2038a2894a6 (patch) | |
| tree | 12a3d9846f29bcda30c622efa2368d70d51752f3 /include/sbi/sbi_ecall_interface.h | |
| parent | 5b4824082ff8826f77d6bc670e16068d0744ff7f (diff) | |
| download | opensbi-e3f69fc1e934ce7815d9cde2d13dd2038a2894a6.tar.xz | |
lib: Implement Hart State Management (HSM) SBI extension
This patch adds support HSM extension. The specification is available
at https://github.com/riscv/riscv-sbi-doc.
It allows to implement hart hotplug and fixed ordered hart booting in
supervisor.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Diffstat (limited to 'include/sbi/sbi_ecall_interface.h')
| -rw-r--r-- | include/sbi/sbi_ecall_interface.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/sbi/sbi_ecall_interface.h b/include/sbi/sbi_ecall_interface.h index ba88e8b..727a545 100644 --- a/include/sbi/sbi_ecall_interface.h +++ b/include/sbi/sbi_ecall_interface.h @@ -26,6 +26,7 @@ #define SBI_EXT_TIME 0x54494D45 #define SBI_EXT_IPI 0x735049 #define SBI_EXT_RFENCE 0x52464E43 +#define SBI_EXT_HSM 0x48534D /* SBI function IDs for BASE extension*/ #define SBI_EXT_BASE_GET_SPEC_VERSION 0x0 @@ -51,6 +52,11 @@ #define SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA 0x5 #define SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID 0x6 +/* SBI function IDs for HSM extension */ +#define SBI_EXT_HSM_HART_START 0x0 +#define SBI_EXT_HSM_HART_STOP 0x1 +#define SBI_EXT_HSM_HART_GET_STATUS 0x2 + #define SBI_HSM_HART_STATUS_STARTED 0x0 #define SBI_HSM_HART_STATUS_STOPPED 0x1 #define SBI_HSM_HART_STATUS_START_PENDING 0x2 |