From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric DeVolder Date: Tue, 1 Mar 2022 14:04:42 -0600 Subject: [PATCH v4 03/10] crash hp: definitions and prototype changes In-Reply-To: References: <20220209195706.51522-1-eric.devolder@oracle.com> <20220209195706.51522-4-eric.devolder@oracle.com> Message-ID: <4645ff8f-d4ab-a6a5-b4dd-df2b652daaee@oracle.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kexec@lists.infradead.org On 2/22/22 21:43, Baoquan He wrote: > On 02/09/22 at 02:56pm, Eric DeVolder wrote: >> 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 >> --- >> 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); > > Seems this patch can be merged with patch 6/10. I don't see prototype > change in this patch. Ok, done. eric > >> +#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 >> >