From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH v3] ARM: Introduce patching of phys_to_virt and vice versa
Date: Sun, 7 Nov 2010 16:48:38 +0000 [thread overview]
Message-ID: <20101107164838.GA1759@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <AANLkTikhcHTRYQki3cCYbWFY_POWX4E26Jau8nYpuDs0@mail.gmail.com>
On Sat, Nov 06, 2010 at 02:40:46AM +0800, Eric Miao wrote:
> Changes since last version, fixup of the patching stub instructions is now
> performed in assembly code before MMU is on, that means no flush cache is
> necessary.
I assume that there's more to this, because this doesn't include code to
call __fixup_phys_virt. As it corrupts r1/r2, I'm not sure where you
intend to call this from, as they must be preserved around the time that
__fixup_smp is called.
Also, I assume this only works with ARM code, not Thumb2 ?
next prev parent reply other threads:[~2010-11-07 16:48 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-05 18:40 [RFC PATCH v3] ARM: Introduce patching of phys_to_virt and vice versa Eric Miao
2010-11-07 16:48 ` Russell King - ARM Linux [this message]
2010-11-08 4:38 ` Nicolas Pitre
2010-11-08 11:49 ` Russell King - ARM Linux
2010-11-10 16:45 ` Russell King - ARM Linux
2010-11-10 17:55 ` Russell King - ARM Linux
2010-11-10 20:23 ` Nicolas Pitre
2010-11-10 20:37 ` Russell King - ARM Linux
2010-11-10 21:43 ` Nicolas Pitre
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