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| author | Pavel Tatashin <pasha.tatashin@soleen.com> | 2019-12-04 18:59:15 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-01-08 19:32:55 +0300 |
| commit | de68e4daea9084df4c614d31e2061d5d31bf24f4 (patch) | |
| tree | d703d520c70191a0069260df737fe25f56303181 /kernel/kexec.c | |
| parent | d42cc530b18db2dd9de621238d33670841aabc36 (diff) | |
| download | linux-de68e4daea9084df4c614d31e2061d5d31bf24f4.tar.xz | |
kexec: add machine_kexec_post_load()
It is the same as machine_kexec_prepare(), but is called after segments are
loaded. This way, can do processing work with already loaded relocation
segments. One such example is arm64: it has to have segments loaded in
order to create a page table, but it cannot do it during kexec time,
because at that time allocations won't be possible anymore.
Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Acked-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'kernel/kexec.c')
| -rw-r--r-- | kernel/kexec.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/kexec.c b/kernel/kexec.c index bc933c0db9bf..f977786fe498 100644 --- a/kernel/kexec.c +++ b/kernel/kexec.c @@ -159,6 +159,10 @@ static int do_kexec_load(unsigned long entry, unsigned long nr_segments, kimage_terminate(image); + ret = machine_kexec_post_load(image); + if (ret) + goto out; + /* Install the new kernel and uninstall the old */ image = xchg(dest_image, image); |