6fb62bf9cd5b40cd6a6f8bad parent 63d30298efc387c72557d11e2a7b467554c05a64 author Eric W. Biederman 1119736681 -0700 committer Linus Torvalds 1119741890 -0700 [PATCH] crashdump: x86 crashkernel option This is the x86 implementation of the crashkernel option. It reserves a window of memory very early in the bootup process, so we never use it for anything but the kernel to switch to when the running kernel panics. In addition to reserving this memory a resource structure is registered so looking at /proc/iomem it is clear what happened to that memory. ISSUES: Is it possible to implement this in a architecture generic way? What should be done with architectures that always use an iommu and thus don't report their RAM memory resources in /proc/iomem? Signed-off-by: Eric Biederman Signed-off-by: Vivek Goyal Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds