Express relocatability of kernel on x86_64 in documentation
This patch adapts the Documentation/kdump/kdump.txt file to express the fact that the x86_64 kernel is now also relocatable. This makes i386 and x86_64 now behave the same, simplifying the documentation. Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Vivek Goyal <vgoyal@in.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Haren Myneni <hbabu@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -159,16 +159,17 @@ Dump-capture kernel config options (Arch Independent)
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CONFIG_PROC_VMCORE=y
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(CONFIG_PROC_VMCORE is set by default when CONFIG_CRASH_DUMP is selected.)
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Dump-capture kernel config options (Arch Dependent, i386)
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--------------------------------------------------------
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1) On x86, enable high memory support under "Processor type and
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Dump-capture kernel config options (Arch Dependent, i386 and x86_64)
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--------------------------------------------------------------------
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1) On i386, enable high memory support under "Processor type and
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features":
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CONFIG_HIGHMEM64G=y
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or
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CONFIG_HIGHMEM4G
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2) On x86 and x86_64, disable symmetric multi-processing support
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2) On i386 and x86_64, disable symmetric multi-processing support
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under "Processor type and features":
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CONFIG_SMP=n
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@ -203,28 +204,6 @@ Dump-capture kernel config options (Arch Dependent, i386)
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5) Make and install the kernel and its modules. DO NOT add this kernel
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to the boot loader configuration files.
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Dump-capture kernel config options (Arch Dependent, x86_64)
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----------------------------------------------------------
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1) On x86 and x86_64, disable symmetric multi-processing support
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under "Processor type and features":
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CONFIG_SMP=n
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(If CONFIG_SMP=y, then specify maxcpus=1 on the kernel command line
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when loading the dump-capture kernel, see section "Load the Dump-capture
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Kernel".)
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2) Use a suitable value for "Physical address where the kernel is
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loaded" (under "Processor type and features"). This only appears when
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"kernel crash dumps" is enabled. By default this value is 0x1000000
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(16MB). It should be the same as X in the "crashkernel=Y@X" boot
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parameter.
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For x86_64, normally "CONFIG_PHYSICAL_START=0x1000000".
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3) Make and install the kernel and its modules. DO NOT add this kernel
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to the boot loader configuration files.
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Dump-capture kernel config options (Arch Dependent, ppc64)
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----------------------------------------------------------
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@ -282,11 +261,9 @@ Based on the architecture and type of image (relocatable or not), one
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can choose to load the uncompressed vmlinux or compressed bzImage/vmlinuz
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of dump-capture kernel. Following is the summary.
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For i386:
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For i386 and x86_64:
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- Use vmlinux if kernel is not relocatable.
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- Use bzImage/vmlinuz if kernel is relocatable.
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For x86_64:
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- Use vmlinux
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For ppc64:
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- Use vmlinux
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For ia64:
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