diff options
| author | Huang Ying <ying.huang@intel.com> | 2008-10-29 11:24:25 +0800 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2008-10-31 12:58:16 +1100 |
| commit | ceb04ae1223ba5cdd40df744aa73a32b2cc7d879 (patch) | |
| tree | 993024edfe07b9cd7150fb2131175104e4948ad4 /purgatory/arch/i386/setup-x86.S | |
| parent | 802a8a5e396e06a514251c44454c982bff3c5073 (diff) | |
kexec jump support for kexec-tools
To support memory backup/restore an option named
--load-preserve-context is added to kexec. When it is specified
toggether with --mem-max, most segments for crash dump support are
loaded, and the memory range between mem_min to mem_max which has no
segments loaded are loaded as backup segments. To support jump back
from kexeced, options named --load-jump-back-helper and --entry are
added to load a helper image with specified entry to jump back.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'purgatory/arch/i386/setup-x86.S')
| -rw-r--r-- | purgatory/arch/i386/setup-x86.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/purgatory/arch/i386/setup-x86.S b/purgatory/arch/i386/setup-x86.S index f0719d4..201bb2c 100644 --- a/purgatory/arch/i386/setup-x86.S +++ b/purgatory/arch/i386/setup-x86.S @@ -41,6 +41,9 @@ purgatory_start: ljmp $0x10,$1f 1: + movl 0(%esp), %eax + movl %eax, jump_back_entry + /* Setup a stack */ movl $lstack_end, %esp |