Messages in this thread Patch in this message | | | From | Eric DeVolder <> | Subject | [PATCH v4 03/10] crash hp: definitions and prototype changes | Date | Wed, 9 Feb 2022 14:56:59 -0500 |
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This change adds members to struct kimage to facilitate crash hotplug support.
This change also defines crash hotplug events and associated prototypes.
Signed-off-by: Eric DeVolder <eric.devolder@oracle.com> --- include/linux/kexec.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/include/linux/kexec.h b/include/linux/kexec.h index 0c994ae37729..13c238c2da48 100644 --- a/include/linux/kexec.h +++ b/include/linux/kexec.h @@ -299,6 +299,13 @@ struct kimage { /* Information for loading purgatory */ struct purgatory_info purgatory_info; + +#ifdef CONFIG_CRASH_HOTPLUG + bool hotplug_event; + int offlinecpu; + bool elf_index_valid; + int elf_index; +#endif #endif #ifdef CONFIG_IMA_KEXEC @@ -315,6 +322,15 @@ struct kimage { unsigned long elf_load_addr; }; +#ifdef CONFIG_CRASH_HOTPLUG +void arch_crash_hotplug_handler(struct kimage *image, + unsigned int hp_action, unsigned long a, unsigned long b); +#define KEXEC_CRASH_HP_REMOVE_CPU 0 +#define KEXEC_CRASH_HP_ADD_CPU 1 +#define KEXEC_CRASH_HP_REMOVE_MEMORY 2 +#define KEXEC_CRASH_HP_ADD_MEMORY 3 +#endif /* CONFIG_CRASH_HOTPLUG */ + /* kexec interface functions */ extern void machine_kexec(struct kimage *image); extern int machine_kexec_prepare(struct kimage *image); -- 2.27.0
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