From: Chris Wright <chrisw@osdl.org>
To: zach@vmware.com
Cc: ak@suse.de, akpm@osdl.org, chrisl@vmware.com, chrisw@osdl.org,
hpa@zytor.com, linux-kernel@vger.kernel.org, mbligh@mbligh.org,
pratap@vmware.com, virtualization@lists.osdl.org,
zwane@arm.linux.org.uk
Subject: Re: [PATCH 6/6] i386 virtualization - Attempt to clean up pgtable code motion
Date: Mon, 15 Aug 2005 23:42:56 -0700 [thread overview]
Message-ID: <20050816064256.GY7762@shell0.pdx.osdl.net> (raw)
In-Reply-To: <200508152301.j7FN19cj005354@zach-dev.vmware.com>
* zach@vmware.com (zach@vmware.com) wrote:
> Virtualization aware Linux kernels may need to redefine functions which write
> to hardware page tables at the sub-architecture layer. Previously, this was
> done by encapsulation in a split mach-xxx/pgtable-{2|3}level-ops.h file, but
> having 8 pgtable header files is simply unacceptable. This goes some ways
> towards cleaning that up by deprecating the 2/3 level subarch functions.
> This is accomplished by using __HAVE_ARCH_FUNC macros, and allowing
> one sub-arch file, pgtable-ops.h, which gets included before any functions
> which write to hardware page tables, allowing the sub-architecture to override
> any or all definitions it needs.
This looks like a better tradeoff.
prev parent reply other threads:[~2005-08-16 6:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-15 23:01 [PATCH 6/6] i386 virtualization - Attempt to clean up pgtable code motion zach
2005-08-16 6:42 ` Chris Wright [this message]
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