From: Michael Neuling <michael.neuling@au1•ibm.com>
To: Gabriel Paubert <paubert@iram•es>
Cc: linuxppc-dev@lists•ozlabs.org, Ian Munsie <imunsie@au1•ibm.com>,
Matt Evans <matt@ozlabs•org>
Subject: Re: [PATCH 00/14] powerpc: Add support for POWER8 relocation on exceptions
Date: Fri, 09 Nov 2012 20:51:07 +1100 [thread overview]
Message-ID: <2489.1352454667@neuling.org> (raw)
In-Reply-To: <20121109085815.GB13221@visitor2.iram.es>
> > This set of patches adds support for taking exceptions with the MMU on which is
> > supported by POWER8.
> >
> > A new set of exception vectors is added at 0xc000_0000_0000_4xxx. When the HW
> > takes us here, MSR IR/DR will be set already and we no longer need a costly
> > RFID to turn the MMU back on again.
> >
> > The original 0x0 based exception vectors remain for when the HW can't leave the
> > MMU on. Examples of this are when we can't trust the current the MMU mappings,
> ^^^
> Extra "the" (here and in a couple of patches).
Thanks, I'll fix.
> Can't do much more since I don't have any hardware past G5, but the
> series looks nice and avoiding transient excursions to real mode is a
> good thing.
Thanks.
Mikey
prev parent reply other threads:[~2012-11-09 9:51 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-09 6:18 [PATCH 00/14] powerpc: Add support for POWER8 relocation on exceptions Michael Neuling
2012-11-09 6:18 ` [PATCH 01/14] powerpc: Fix name denorm hypervisor symbol Michael Neuling
2012-11-09 6:19 ` [PATCH 02/14] powerpc: Whitespace changes in exception64s.S Michael Neuling
2012-11-09 6:19 ` [PATCH 03/14] powerpc: Remove unessessary 0x3000 location enforcement Michael Neuling
2012-11-09 6:19 ` [PATCH 04/14] powerpc: Make load_hander handle upto 64k offset Michael Neuling
2012-11-09 6:19 ` [PATCH 05/14] powerpc: Turn syscall handler into macros Michael Neuling
2012-11-09 6:19 ` [PATCH 06/14] powerpc: Add new macros needed for relocation on exceptions Michael Neuling
2012-11-09 6:19 ` [PATCH 07/14] powerpc: Add relocation on exception vector handlers Michael Neuling
2012-11-09 6:19 ` [PATCH 08/14] powerpc: Move initial mfspr LPCR out of __init_LPCR Michael Neuling
2012-11-09 6:19 ` [PATCH 09/14] powerpc: Setup relocation on exceptions for bare metal systems Michael Neuling
2012-11-12 1:32 ` Segher Boessenkool
2012-11-12 2:08 ` Michael Neuling
2012-11-09 6:19 ` [PATCH 10/14] powerpc: Add set_mode hcall Michael Neuling
2012-11-09 6:19 ` [PATCH 10/12] powerpc: Move get_longbusy_msecs into hvcall.h and remove duplicate function Michael Neuling
2012-11-09 6:19 ` [PATCH 11/14] powerpc: Add wrappers to enable/disable relocation on exceptions Michael Neuling
2012-11-09 6:19 ` [PATCH 12/14] powerpc: Move get_longbusy_msecs into hvcall.h and remove duplicate function Michael Neuling
2012-11-09 9:26 ` Stephen Rothwell
2012-11-09 9:49 ` Michael Neuling
2012-11-09 6:19 ` [PATCH 13/14] powerpc: Enable relocation on during exceptions at boot Michael Neuling
2012-11-09 6:19 ` [PATCH 14/14] powerpc: Disable relocation on exceptions when kexecing Michael Neuling
2012-11-09 8:58 ` [PATCH 00/14] powerpc: Add support for POWER8 relocation on exceptions Gabriel Paubert
2012-11-09 9:51 ` Michael Neuling [this message]
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