Re: [RFC PATCH 00/13][V3] kexec: A new system call to allow in kernel loading

Vivek,

As per Documentation/SubmitChecklist , please CC linux-api@ on patces
that change the ABI/API. See
https://www.kernel.org/doc/man-pages/linux-api-ml.html.

Also, is there some draft man page for this new system call?

Thanks,

Michael

On Wed, Jun 4, 2014 at 7:50 PM, Vivek Goyal [off-list ref] wrote:

On Wed, Jun 04, 2014 at 05:22:14PM +0800, WANG Chao wrote:

[..]

quoted

quoted

Index: kexec-tools/kexec/kexec.h
===================================================================

--- kexec-tools.orig/kexec/kexec.h  2014-06-02 14:34:16.719774316 -0400
+++ kexec-tools/kexec/kexec.h       2014-06-02 14:34:42.010036325 -0400

@@ -156,6 +156,13 @@ struct kexec_info {
    unsigned long kexec_flags;
    unsigned long backup_src_start;
    unsigned long backup_src_size;
+   /* Set to 1 if we are using kexec2 syscall */
+   unsigned long file_mode :1;
+
+   /* Filled by kernel image processing code */
+   int initrd_fd;
+   char *command_line;
+   int command_line_len;
 };

 struct arch_map_entry {

@@ -207,6 +214,7 @@ extern int file_types;
 #define OPT_UNLOAD         'u'
 #define OPT_TYPE           't'
 #define OPT_PANIC          'p'
+#define OPT_USE_KEXEC2_SYSCALL     's'
 #define OPT_MEM_MIN             256
 #define OPT_MEM_MAX             257
 #define OPT_REUSE_INITRD   258

@@ -230,6 +238,7 @@ extern int file_types;
    { "mem-min",            1, 0, OPT_MEM_MIN }, \
    { "mem-max",            1, 0, OPT_MEM_MAX }, \
    { "reuseinitrd",        0, 0, OPT_REUSE_INITRD }, \
+   { "use-kexec2-syscall", 0, 0, OPT_USE_KEXEC2_SYSCALL }, \
    { "debug",              0, 0, OPT_DEBUG }, \

 #define KEXEC_OPT_STR "h?vdfxluet:p"

This line,
#define KEXEC_OPT_STR "h?vdfxluet:p"

should be something like,
#define KEXEC_OPT_STR "h?vdfxluet:ps"

Thanks chao. I will fix it.

Thanks
Vivek
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-- 
Michael Kerrisk Linux man-pages maintainer;
http://www.kernel.org/doc/man-pages/
Author of "The Linux Programming Interface", http://blog.man7.org/