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From: Matthew Wilcox <matthew@wil.cx>
To: Carlos O'Donell <carlos@systemhalted.org>
Cc: parisc-linux@parisc-linux.org
Subject: Re: [parisc-linux] QEMU Port (Help needed)
Date: Sun, 4 Jun 2006 17:19:47 -0600	[thread overview]
Message-ID: <20060604231947.GH27231@parisc-linux.org> (raw)
In-Reply-To: <119aab440606041448t3952e3dfwf85f926ffdc5e441@mail.gmail.com>

On Sun, Jun 04, 2006 at 05:48:17PM -0400, Carlos O'Donell wrote:
> 4. flush_icache_range can probably be copied from the kernel implementation.

Why are we still talking about doing flush_icache_range() in userspace?
Why does qemu not use mprotect() to set either PROT_EXEC or PROT_WRITE
(and never both at the same time)?  The kernel will flush userspace
appopriately (and if it doesn't, that's a bug).
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  parent reply	other threads:[~2006-06-04 23:19 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-06-04 16:04 [parisc-linux] QEMU Port (Help needed) Stuart Brady
2006-06-04 21:48 ` Carlos O'Donell
2006-06-04 23:13   ` Stuart Brady
2006-06-04 23:19   ` Matthew Wilcox [this message]
2006-06-04 23:22     ` Carlos O'Donell

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