From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Paul Mackerras <paulus@samba.org>
Cc: Arnd Bergmann <arnd@arndb.de>, Milton Miller <miltonm@bga.com>,
linuxppc-dev@ozlabs.org, Olof Johansson <olof@lixom.net>,
cbe-oss-dev@ozlabs.org
Subject: Re: [PATCH v4] powerpc: 64K page support for kexec
Date: Sun, 29 Apr 2007 19:31:01 +1000 [thread overview]
Message-ID: <1177839061.14873.352.camel@localhost.localdomain> (raw)
In-Reply-To: <17972.22463.103425.51542@cargo.ozlabs.ibm.com>
On Sun, 2007-04-29 at 18:30 +1000, Paul Mackerras wrote:
> Luke Browning writes:
>
> > How about the following as an alternative.
> >
> > BUG_ON((hpte_v & 0x4000000000000000UL) && (crashing_cpus == -1));
> > BUG_ON((size == MMU_PAGE_16G) && (crashing_cpus == -1));
> > BUG_ON((size == MMU_PAGE_64K_AP) && (crashing_cpus == -1));
>
> How much effort would it be to add the code to cope with those
> conditions and give the correct answers? I'd much prefer that to
> these BUG_ONs.
hrm...
1T segments shouldn't be too hard... 16G pages goes with it pretty much,
and AP ... well... do they work on any implementation anyway ?
Ben.
next prev parent reply other threads:[~2007-04-29 9:31 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-24 18:31 [PATCH] 64K page support for kexec Luke Browning
2007-04-24 19:43 ` Olof Johansson
2007-04-24 22:50 ` Benjamin Herrenschmidt
2007-04-24 23:07 ` Olof Johansson
2007-04-25 5:48 ` Milton Miller
2007-04-25 19:35 ` [PATCH v2] powerpc: " Luke Browning
2007-04-25 22:19 ` Benjamin Herrenschmidt
2007-04-26 15:28 ` Luke Browning
2007-04-27 4:36 ` [PATCH v3] " Milton Miller
2007-04-27 14:42 ` Luke Browning
2007-04-27 16:51 ` Milton Miller
2007-04-27 16:22 ` [PATCH v4] " Luke Browning
2007-04-27 16:59 ` Milton Miller
2007-04-27 17:30 ` Luke Browning
2007-04-27 18:23 ` Haren Myneni
2007-04-29 5:35 ` Milton Miller
2007-04-29 8:30 ` Paul Mackerras
2007-04-29 9:31 ` Benjamin Herrenschmidt [this message]
2007-04-29 13:27 ` Segher Boessenkool
2007-04-29 22:49 ` Benjamin Herrenschmidt
2007-04-26 7:15 ` [PATCH v2] " Olof Johansson
2007-04-24 22:48 ` [PATCH] " Benjamin Herrenschmidt
2007-04-25 13:06 ` Luke Browning
2007-04-25 22:11 ` Benjamin Herrenschmidt
-- strict thread matches above, loose matches on Subject: below --
2007-04-26 22:23 [PATCH v3] powerpc: " Luke Browning
2007-04-26 22:32 ` Olof Johansson
2007-05-02 14:19 ` [PATCH v4] " Luke Browning
2007-05-03 13:45 ` Arnd Bergmann
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