Hi!
> +config QUICK_KEXEC
> + bool "Support for quick kexec"
> + depends on KEXEC_CORE
> + help
> + Say y here to enable this feature.
?
> + It use reserved memory to accelerate kexec, just like crash
uses
> + kexec, load new kernel and initrd to reserved memory, and
> + boot new kernel on that memory. It will save the time of
> + relocating kernel.
loads a new.... boots new...
> IORES_DESC_DEVICE_PRIVATE_MEMORY = 6,
> IORES_DESC_RESERVED = 7,
> IORES_DESC_SOFT_RESERVED = 8,
> +#ifdef CONFIG_QUICK_KEXEC
> + IORES_DESC_QUICK_KEXEC = 9,
> +#endif
> };
Remove ifdef.
> /*
> diff --git a/include/linux/kexec.h b/include/linux/kexec.h
> index 9e93bef52968..976bf9631070 100644
> --- a/include/linux/kexec.h
> +++ b/include/linux/kexec.h
> @@ -269,9 +269,12 @@ struct kimage {
> unsigned long control_page;
>
> /* Flags to indicate special processing */
> - unsigned int type : 1;
> + unsigned int type : 2;
> #define KEXEC_TYPE_DEFAULT 0
> #define KEXEC_TYPE_CRASH 1
> +#ifdef CONFIG_QUICK_KEXEC
> +#define KEXEC_TYPE_QUICK 2
> +#endif
> unsigned int preserve_context : 1;
Here, too.
> +++ b/include/uapi/linux/kexec.h
> @@ -12,6 +12,9 @@
> /* kexec flags for different usage scenarios */
> #define KEXEC_ON_CRASH 0x00000001
> #define KEXEC_PRESERVE_CONTEXT 0x00000002
> +#ifdef CONFIG_QUICK_KEXEC
> +#define KEXEC_QUICK 0x00000004
> +#endif
> #define KEXEC_ARCH_MASK 0xffff0000
And here.
Pavel
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