From: krinkin.m.u@gmail.com (Mike Krinkin)
To: kernelnewbies@lists.kernelnewbies.org
Subject: 回复：Re: some question about arch/x86/kernel/head_64.S
Date: Wed, 30 Dec 2015 15:25:22 +0300 [thread overview]
Message-ID: <20151230122522.GA23107@kmu-tp-x230> (raw)
In-Reply-To: <6BCA542E-9EF7-475B-AEFD-67CAE35344DF@gmail.com>
On Wed, Dec 30, 2015 at 08:04:19PM +0800, hitmoon wrote:
> Thank you mike!
> so ?after the first instruction ?rbp contains the offset of actually loaded
> address, which equals the physical address.
yes, comment above says that at that point "someone has loaded an identity
mapped page table", so it should be equal to the physical address.
> $_text - __START_KERNEL_map contains the expected physical address .
> Right ?
yes, as far as i can tell.
next prev parent reply other threads:[~2015-12-30 12:25 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-30 10:45 some question about arch/x86/kernel/head_64.S xiaoqiang zhao
[not found] ` <20151230113540.GA21821@kmu-tp-x230>
2015-12-30 12:04 ` 回复：Re: " hitmoon
2015-12-30 12:25 ` Mike Krinkin [this message]
2015-12-30 21:12 ` 回复：Re: " hitmoon
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