From: Andreas Schwab <schwab@suse.de>
To: "Ahmed S. Darwish" <darwish.07@gmail.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>, linux-kernel@vger.kernel.org
Subject: Re: [i386] Questions regarding provisional page tables initialization
Date: Mon, 02 Jul 2007 11:18:08 +0200 [thread overview]
Message-ID: <je8x9zrwof.fsf@sykes.suse.de> (raw)
In-Reply-To: <20070702011332.GA3503@Ahmed> (Ahmed S. Darwish's message of "Mon\, 2 Jul 2007 04\:13\:33 +0300")
"Ahmed S. Darwish" <darwish.07@gmail.com> writes:
> yes, but isn't the displacement here (0x007) a _bytes_ displacement ?. so
> effectively, %ecx now contains physical address of pg0 + 7bytes. Is it A
> meaningful place/address ?.
It's not pg0 + 7bytes, it is pg0 plus 3 flag bits. Since a page address
is always page aligned, the low bits are reused for flags.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2007-07-02 9:18 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-01 20:38 Ahmed S. Darwish
2007-07-01 22:02 ` Andreas Schwab
2007-07-01 22:19 ` Jeremy Fitzhardinge
2007-07-02 1:13 ` Ahmed S. Darwish
2007-07-02 9:18 ` Andreas Schwab [this message]
2007-07-02 10:23 ` Ahmed S. Darwish
2007-07-02 11:34 ` Brian Gerst
2007-07-02 15:43 ` Ahmed S. Darwish
2007-07-02 10:43 ` Andi Kleen
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