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History

Anton Blanchard 5246adec59 powerpc/pseries: Use H_CLEAR_HPT to clear MMU hash table during kexec

An hcall was recently added that does exactly what we need during kexec
- it clears the entire MMU hash table, ignoring any VRMA mappings.

Try it and fall back to the old method if we get a failure.

On a POWER8 box with 5TB of memory, this reduces the time it takes to
kexec a new kernel from from 4 minutes to 1 minute.

Signed-off-by: Anton Blanchard <anton@samba.org>
Tested-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
[mpe: Split into separate functions and tweak function naming]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

2016-11-14 11:11:51 +11:00

boot

powerpc/boot: Fix boot on systems with uncompressed kernel image

2016-10-19 20:35:34 +11:00

configs

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next

2016-10-11 20:07:56 +11:00

crypto

Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2016-10-10 14:04:16 -07:00

include

powerpc/pseries: Use H_CLEAR_HPT to clear MMU hash table during kexec