From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Cc: Blue Swirl <blauwirbel@gmail.com>
Subject: Re: [Qemu-devel] [PATCH] sparc32 boot mode flag fix
Date: Tue, 6 Nov 2007 21:08:29 +0000 [thread overview]
Message-ID: <200711062108.29729.paul@codesourcery.com> (raw)
In-Reply-To: <f43fc5580711061251l763d73bbl8380279557fd781f@mail.gmail.com>
> > IIUC enabling/disabling boot mode is no different to and other VM change.
> > If the virtual->physical mapping happens to be the same then it's
> > perfectly ok to reuse the TB.
>
> Not in this case: in boot mode, physical and virtual address 0
> generates TBs from PROM code.
How is this different to using the MMU to map the PROM at virtual address
zero?
I see exactly one use of MMU_BM. It simply hard-wires a particular
virtual->physical address mapping.
Paul
next prev parent reply other threads:[~2007-11-06 21:08 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-06 2:45 [Qemu-devel] [PATCH] sparc32 boot mode flag fix Robert Reif
2007-11-06 19:31 ` Blue Swirl
2007-11-06 20:39 ` Paul Brook
2007-11-06 20:51 ` Blue Swirl
2007-11-06 21:08 ` Paul Brook [this message]
2007-11-07 15:40 ` Blue Swirl
2007-11-06 23:36 ` Robert Reif
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