From: Scott Wood <scottwood@freescale.com>
To: Alexander Graf <agraf@suse.de>
Cc: Stefan Weil <sw@weilnetz.de>,
qemu-ppc@nongnu.org, QEMU Developers <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [Qemu-ppc] [PATCH 2/2] tcg/ppc*: Move cache initialization to ppc specific code
Date: Mon, 3 Oct 2011 16:50:36 -0500 [thread overview]
Message-ID: <4E8A2E2C.2060004@freescale.com> (raw)
In-Reply-To: <0689D6DD-AE05-4399-BEEA-993BD168023A@suse.de>
On 10/03/2011 04:36 PM, Alexander Graf wrote:
> With TCG, we're never executing guest code directly, but always go
> through TCG to emulate it. So the only case where we actually need to
> flush the icache is in TCG code generation, never outside, right?
Right.
> For KVM, I agree. We need some indication to flush the cache. But it
> doesn't have to be done that complicated. We can simply do an inline
> function that gets always called and has a few conditionals on when
> to actually flush. That inline function could easily be a nop on
> !ppc, though I'm not 100% sure that no other arch needs this.
It's already an inline function that's a nop on !ppc. What
simplification do you suggest?
-Scott
next prev parent reply other threads:[~2011-10-03 21:50 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-03 20:43 [Qemu-devel] Clean cache related code which was used only by PPC hosts Stefan Weil
2011-10-03 20:43 ` [Qemu-devel] [PATCH 1/2] linux-user: Remove unused code Stefan Weil
2011-10-03 21:12 ` [Qemu-trivial] " Stefan Weil
2011-10-03 21:12 ` Stefan Weil
2011-10-04 7:56 ` Peter Maydell
2011-10-05 8:26 ` Stefan Hajnoczi
2011-10-03 20:43 ` [Qemu-devel] [PATCH 2/2] tcg/ppc*: Move cache initialization to ppc specific code Stefan Weil
2011-10-03 20:52 ` [Qemu-devel] [Qemu-ppc] " Scott Wood
2011-10-03 21:10 ` Stefan Weil
2011-10-03 21:36 ` Alexander Graf
2011-10-03 21:50 ` Scott Wood [this message]
2011-10-03 22:06 ` Alexander Graf
2011-10-03 22:07 ` Scott Wood
2011-10-03 22:11 ` Alexander Graf
2011-10-03 21:40 ` Scott Wood
2011-10-03 21:43 ` Alexander Graf
2011-10-03 21:51 ` Scott Wood
2011-10-03 22:03 ` Alexander Graf
2011-10-04 6:06 ` Benjamin Herrenschmidt
2011-10-04 5:55 ` Stefan Weil
2011-10-04 6:29 ` Paolo Bonzini
2011-10-04 8:11 ` Peter Maydell
2011-10-04 15:44 ` Scott Wood
2011-10-03 23:12 ` [Qemu-devel] " malc
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