Jordan Niethe 4bb3219837 powerpc/book3s64/kexec: Clear CIABR on kexec ... The value in CIABR persists across kexec which can lead to unintended results when the new kernel hits the old kernel's breakpoint. For example: 0:mon> bi $loadavg_proc_show 0:mon> b type address 1 inst c000000000519060 loadavg_proc_show+0x0/0x130 0:mon> x $ kexec -l /mnt/vmlinux --initrd=/mnt/rootfs.cpio.gz --append='xmon=off' $ kexec -e $ cat /proc/loadavg Trace/breakpoint trap Make sure CIABR is cleared so this does not happen. Signed-off-by: Jordan Niethe <jniethe5@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201207010519.15597-1-jniethe5@gmail.com		2020-12-07 23:26:01 +11:00
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asm	powerpc/book3s64/kexec: Clear CIABR on kexec	2020-12-07 23:26:01 +11:00
uapi/asm	powerpc/watchpoint/ptrace: Introduce PPC_DEBUG_FEATURE_DATA_BP_ARCH_31	2020-09-15 22:13:20 +10:00