From: Paul Brook <paul@codesourcery.com>
To: Peter <pjcreath+openbios@gmail.com>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Potential sparc32 MMU bug
Date: Fri, 16 Feb 2007 18:25:27 +0000 [thread overview]
Message-ID: <200702161825.28020.paul@codesourcery.com> (raw)
In-Reply-To: <d40b362a0702161017i7f1503a0x26f76a42db76eb14@mail.gmail.com>
> > I don't know about sparc, but it's normal for writes to ROM to be
> > ignored. However by my reading the sparc bios is loaded into RAM anyway,
> > so it shouldn't matter.
>
> It definitely gets blocked by something: if I leave the the trap table
> in the .text section, the write silently fails. If I move the trap
> table to the .data section, the write succeeds. If I move the trap
> table over to .rodata, the write fails again. What are you looking at
> that suggests the whole sparc bios is loaded read/write?
I was mistaken. There is a ROM area defined, it's just the elf loader doesn't
care whether it's loading to rom or ram.
My comment about rom writes being silently ignored still applies.
Paul
next prev parent reply other threads:[~2007-02-16 18:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-16 16:55 [Qemu-devel] Potential sparc32 MMU bug Peter
2007-02-16 17:01 ` Paul Brook
2007-02-16 18:17 ` Peter
2007-02-16 18:25 ` Paul Brook [this message]
2007-02-16 18:45 ` Peter
2007-02-16 22:50 ` Peter Creath
2007-02-17 8:21 ` Blue Swirl
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