To facilitate hotplug updates of the crash elfcorehdr, a few members are added to the kimage arch struct.
The indices of the elfcorehdr and purgatory segments are recorded here so that upon a hotplug event, those segments can be efficiently located and updated accordingly. The purgatory image also requires a few register context values in order to transition from purgatory to the next/capture kernel. Signed-off-by: Eric DeVolder <[email protected]> --- arch/x86/include/asm/kexec.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h index 11b7c06e2828..b08fe56239c8 100644 --- a/arch/x86/include/asm/kexec.h +++ b/arch/x86/include/asm/kexec.h @@ -150,6 +150,16 @@ struct kimage_arch { pud_t *pud; pmd_t *pmd; pte_t *pte; +#ifdef CONFIG_CRASH_HOTPLUG + struct { + int elf_index; + int purg_index; + unsigned long rbx; + unsigned long rsi; + unsigned long rip; + unsigned long rsp; + } hp; +#endif }; #endif /* CONFIG_X86_32 */ -- 2.27.0 _______________________________________________ kexec mailing list [email protected] http://lists.infradead.org/mailman/listinfo/kexec
