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s390/vmcoreinfo: Store virtual memory layout

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This is a preparatory rework to allow uncoupling virtual
and physical addresses spaces.

The virtual memory layout is needed for address translation
by crash tool when /proc/kcore device is used as the memory
image.

Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
This commit is contained in:
Alexander Gordeev 2023-08-11 10:10:53 +02:00
parent 8572f52518
commit 378e32aa81
1 changed files with 2 additions and 0 deletions
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2
arch/s390/kernel/vmcore_info.c
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@ -14,7 +14,9 @@ void arch_crash_save_vmcoreinfo(void)
VMCOREINFO_LENGTH(lowcore_ptr, NR_CPUS);
vmcoreinfo_append_str("SAMODE31=%lx\n", (unsigned long)__samode31);
vmcoreinfo_append_str("EAMODE31=%lx\n", (unsigned long)__eamode31);
vmcoreinfo_append_str("IDENTITYBASE=%lx\n", __identity_base);
vmcoreinfo_append_str("KERNELOFFSET=%lx\n", kaslr_offset());
vmcoreinfo_append_str("KERNELOFFPHYS=%lx\n", __kaslr_offset_phys);
abs_lc = get_abs_lowcore();
abs_lc->vmcore_info = paddr_vmcoreinfo_note();
put_abs_lowcore(abs_lc);