From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Cc: "Edgar E. Iglesias" <edgar.iglesias@axis.com>
Subject: Re: [Qemu-devel] MMIO address changes
Date: Wed, 3 Dec 2008 14:03:53 +0000 [thread overview]
Message-ID: <200812031403.54060.paul@codesourcery.com> (raw)
In-Reply-To: <20081203121745.GI31803@edgar.se.axis.com>
> > I've tried to be fairly thorough with the changes, and tested what I can.
> > However it's possible I missed or broke something, so please test your
> > favourite targets.
>
> FWIW the etrax-fs machine works OK although I am seeing a noticeable
> slow-down after the patch.
Strange. I wouldn't expect significant slowdown.
AFAIK the hot-path code should be pretty much unchanged (if anything faster
because the IO handlers don't need to adjust the address). Even the TLB fill
handler overhead (tlb_set_page_exec) should be negligible.
Paul
next prev parent reply other threads:[~2008-12-03 14:04 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-01 18:59 [Qemu-devel] MMIO address changes Paul Brook
2008-12-02 16:47 ` takasi-y
2008-12-02 17:09 ` Paul Brook
2008-12-02 17:10 ` Paul Brook
2008-12-03 14:37 ` [Qemu-devel] [PATCH] sh4: Followup to commit #5849 "Change MMIO callbacks..." takasi-y
2008-12-10 17:44 ` [Qemu-devel] " Vladimir Prus
2008-12-14 16:54 ` takasi-y
2008-12-03 12:17 ` [Qemu-devel] MMIO address changes Edgar E. Iglesias
2008-12-03 14:03 ` Paul Brook [this message]
2008-12-07 20:24 ` Edgar E. Iglesias
2009-01-07 15:39 ` Edgar E. Iglesias
2008-12-05 13:52 ` [Qemu-devel] [PATCH] usb-ohci: Add address masking takasi-y
2008-12-07 16:05 ` andrzej zaborowski
2008-12-08 13:04 ` Paul Brook
2008-12-08 10:15 ` Thomas Bandelier
2008-12-09 15:21 ` takasi-y
2008-12-11 8:55 ` [Qemu-devel] Re: MMIO address changes Vladimir Prus
2008-12-25 22:33 ` andrzej zaborowski
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