diff options
| author | Atish Patra <atish.patra@wdc.com> | 2020-02-11 17:32:37 -0800 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2020-02-24 18:07:55 +0530 |
| commit | b677a9b8d641f1c16a4f8f52e00019a9bc747893 (patch) | |
| tree | 5fa5b11867958b81cbeec0678819b60512fb9386 /include/sbi/sbi_error.h | |
| parent | f64f4b92e411709227ee830bc1e9f8f87c72423e (diff) | |
lib: Implement hart hotplug
This patch adds support for hart hotplug in OpenSBI using a generic WFI
based approach. Hart hotplug can be achieved via SBI HSM extension which
allows supervisor mode software to start or stop any harts anytime.
Any platform wishes to implement platform specific hart hotplug must
implement both hart_start and hart_stop in addition to enable platform
feature SBI_PLATFORM_HAS_HART_HOTPLUG.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Diffstat (limited to 'include/sbi/sbi_error.h')
| -rw-r--r-- | include/sbi/sbi_error.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sbi/sbi_error.h b/include/sbi/sbi_error.h index 4b7dd12..91ba2ee 100644 --- a/include/sbi/sbi_error.h +++ b/include/sbi/sbi_error.h @@ -28,6 +28,7 @@ #define SBI_ETRAP -13 #define SBI_EUNKNOWN -14 #define SBI_ENOENT -15 +#define SBI_EALREADY_STARTED -16 /* clang-format on */ |