From: David Laight <David.Laight@ACULAB.COM>
To: 'Christophe Leroy' <christophe.leroy@csgroup.eu>,
'Alexey Dobriyan' <adobriyan@gmail.com>,
Ingo Molnar <mingo@kernel.org>
Cc: "linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
Kees Cook <keescook@chromium.org>,
"x86@kernel.org" <x86@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Luis Chamberlain" <mcgrof@kernel.org>,
Al Viro <viro@zeniv.linux.org.uk>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"Linus Torvalds" <torvalds@linux-foundation.org>,
Christoph Hellwig <hch@lst.de>
Subject: RE: remove the last set_fs() in common code, and remove it for x86 and powerpc v3
Date: Sat, 5 Sep 2020 10:13:51 +0000 [thread overview]
Message-ID: <b9c82e868b7b4dbb97d2bb11de825887@AcuMS.aculab.com> (raw)
In-Reply-To: <4500d8d9-7318-4505-6086-2d2dc41f3866@csgroup.eu>
From: Christophe Leroy
> Sent: 05 September 2020 08:16
>
> Le 04/09/2020 à 23:01, David Laight a écrit :
> > From: Alexey Dobriyan
> >> Sent: 04 September 2020 18:58
...
> > What is this strange %fs register you are talking about.
> > Figure 2-4 only has CS, DS, SS and ES.
> >
>
> Intel added registers FS and GS in the i386
I know, I've got both the 'iAPX 286 Programmer's Reference Manual'
and the '80386 Programmer's Reference Manual' on my shelf.
I don't have the 8088 book though - which I used in 1982.
The old books are a lot easier to read if, for instance,
you are trying to work out how to back and forth to real mode
to do bios calls.
David
-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)
WARNING: multiple messages have this Message-ID (diff)
From: David Laight <David.Laight@ACULAB.COM>
To: 'Christophe Leroy' <christophe.leroy@csgroup.eu>,
'Alexey Dobriyan' <adobriyan@gmail.com>,
Ingo Molnar <mingo@kernel.org>
Cc: "linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
Kees Cook <keescook@chromium.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
"x86@kernel.org" <x86@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Luis Chamberlain <mcgrof@kernel.org>,
Al Viro <viro@zeniv.linux.org.uk>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
Christoph Hellwig <hch@lst.de>
Subject: RE: remove the last set_fs() in common code, and remove it for x86 and powerpc v3
Date: Sat, 5 Sep 2020 10:13:51 +0000 [thread overview]
Message-ID: <b9c82e868b7b4dbb97d2bb11de825887@AcuMS.aculab.com> (raw)
In-Reply-To: <4500d8d9-7318-4505-6086-2d2dc41f3866@csgroup.eu>
From: Christophe Leroy
> Sent: 05 September 2020 08:16
>
> Le 04/09/2020 à 23:01, David Laight a écrit :
> > From: Alexey Dobriyan
> >> Sent: 04 September 2020 18:58
...
> > What is this strange %fs register you are talking about.
> > Figure 2-4 only has CS, DS, SS and ES.
> >
>
> Intel added registers FS and GS in the i386
I know, I've got both the 'iAPX 286 Programmer's Reference Manual'
and the '80386 Programmer's Reference Manual' on my shelf.
I don't have the 8088 book though - which I used in 1982.
The old books are a lot easier to read if, for instance,
you are trying to work out how to back and forth to real mode
to do bios calls.
David
-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)
next prev parent reply other threads:[~2020-09-05 10:14 UTC|newest]
Thread overview: 115+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-03 14:22 remove the last set_fs() in common code, and remove it for x86 and powerpc v3 Christoph Hellwig
2020-09-03 14:22 ` Christoph Hellwig
2020-09-03 14:22 ` [PATCH 01/14] proc: remove a level of indentation in proc_get_inode Christoph Hellwig
2020-09-03 14:22 ` Christoph Hellwig
2020-09-03 14:22 ` [PATCH 02/14] proc: cleanup the compat vs no compat file ops Christoph Hellwig
2020-09-03 14:22 ` Christoph Hellwig
2020-09-03 14:22 ` [PATCH 03/14] proc: add a read_iter method to proc proc_ops Christoph Hellwig
2020-09-03 14:22 ` Christoph Hellwig
2020-09-03 14:22 ` [PATCH 04/14] sysctl: Convert to iter interfaces Christoph Hellwig
2020-09-03 14:22 ` Christoph Hellwig
2020-09-03 14:22 ` [PATCH 05/14] fs: don't allow kernel reads and writes without iter ops Christoph Hellwig
2020-09-03 14:22 ` Christoph Hellwig
2020-10-01 22:38 ` Eric Biggers
2020-10-01 22:38 ` Eric Biggers
2020-10-01 22:40 ` Al Viro
2020-10-01 22:40 ` Al Viro
2020-10-02 16:27 ` Linus Torvalds
2020-10-02 16:27 ` Linus Torvalds
2020-10-09 22:06 ` Eric Biggers
2020-10-09 22:06 ` Eric Biggers
2020-10-10 1:03 ` Linus Torvalds
2020-10-10 1:03 ` Linus Torvalds
2020-10-10 1:19 ` Eric Biggers
2020-10-10 1:19 ` Eric Biggers
2020-10-10 1:29 ` Linus Torvalds
2020-10-10 1:29 ` Linus Torvalds
2020-10-10 1:55 ` Alexander Viro
2020-10-10 1:55 ` Alexander Viro
2020-10-14 5:51 ` Christoph Hellwig
2020-10-14 5:51 ` Christoph Hellwig
2020-09-03 14:22 ` [PATCH 06/14] fs: don't allow splice read/write without explicit ops Christoph Hellwig
2020-09-03 14:22 ` Christoph Hellwig
2020-09-03 14:22 ` [PATCH 07/14] uaccess: add infrastructure for kernel builds with set_fs() Christoph Hellwig
2020-09-03 14:22 ` Christoph Hellwig
2020-09-03 14:22 ` [PATCH 08/14] test_bitmap: remove user bitmap tests Christoph Hellwig
2020-09-03 14:22 ` Christoph Hellwig
2020-09-03 14:22 ` [PATCH 09/14] lkdtm: remove set_fs-based tests Christoph Hellwig
2020-09-03 14:22 ` Christoph Hellwig
2020-09-03 14:22 ` [PATCH 10/14] x86: move PAGE_OFFSET, TASK_SIZE & friends to page_{32,64}_types.h Christoph Hellwig
2020-09-03 14:22 ` [PATCH 10/14] x86: move PAGE_OFFSET, TASK_SIZE & friends to page_{32, 64}_types.h Christoph Hellwig
2020-09-03 14:22 ` [PATCH 11/14] x86: make TASK_SIZE_MAX usable from assembly code Christoph Hellwig
2020-09-03 14:22 ` Christoph Hellwig
2020-09-03 14:22 ` [PATCH 12/14] x86: remove address space overrides using set_fs() Christoph Hellwig
2020-09-03 14:22 ` Christoph Hellwig
2020-09-03 21:30 ` David Laight
2020-09-03 21:30 ` David Laight
2020-09-03 23:25 ` Linus Torvalds
2020-09-03 23:25 ` Linus Torvalds
2020-09-04 7:59 ` David Laight
2020-09-04 7:59 ` David Laight
2020-09-04 2:55 ` Al Viro
2020-09-04 2:55 ` Al Viro
2020-09-04 4:41 ` Al Viro
2020-09-04 4:41 ` Al Viro
2020-09-04 6:38 ` Christoph Hellwig
2020-09-04 6:38 ` Christoph Hellwig
2020-09-04 7:47 ` Christoph Hellwig
2020-09-04 7:47 ` Christoph Hellwig
2020-09-03 14:22 ` [PATCH 13/14] powerpc: use non-set_fs based maccess routines Christoph Hellwig
2020-09-03 14:22 ` Christoph Hellwig
2020-09-03 14:22 ` [PATCH 14/14] powerpc: remove address space overrides using set_fs() Christoph Hellwig
2020-09-03 14:22 ` Christoph Hellwig
2020-09-03 15:43 ` Christophe Leroy
2020-09-03 15:49 ` Christoph Hellwig
2020-09-03 15:49 ` Christoph Hellwig
2020-09-03 15:56 ` Christoph Hellwig
2020-09-03 15:56 ` Christoph Hellwig
2020-09-03 16:03 ` Christophe Leroy
2020-09-03 16:03 ` Christophe Leroy
2020-09-03 14:28 ` remove the last set_fs() in common code, and remove it for x86 and powerpc v3 Al Viro
2020-09-03 14:28 ` Al Viro
2020-09-03 14:30 ` Christoph Hellwig
2020-09-03 14:30 ` Christoph Hellwig
2020-09-03 14:36 ` Al Viro
2020-09-03 14:36 ` Al Viro
2020-09-03 14:40 ` Christoph Hellwig
2020-09-03 14:40 ` Christoph Hellwig
2020-09-09 17:31 ` Linus Torvalds
2020-09-09 17:31 ` Linus Torvalds
2020-09-09 18:40 ` Segher Boessenkool
2020-09-09 18:40 ` Segher Boessenkool
2020-09-09 21:33 ` Linus Torvalds
2020-09-09 21:33 ` Linus Torvalds
2020-09-10 8:04 ` David Laight
2020-09-10 8:04 ` David Laight
2020-09-10 8:13 ` Christophe Leroy
2020-09-10 8:13 ` Christophe Leroy
2020-09-10 9:26 ` David Laight
2020-09-10 9:26 ` David Laight
2020-09-10 12:26 ` David Laight
2020-09-10 12:26 ` David Laight
2020-09-10 15:20 ` Segher Boessenkool
2020-09-10 15:20 ` Segher Boessenkool
2020-09-10 15:31 ` David Laight
2020-09-10 15:31 ` David Laight
2020-09-10 17:15 ` Segher Boessenkool
2020-09-10 17:15 ` Segher Boessenkool
2020-09-10 15:16 ` Segher Boessenkool
2020-09-10 15:16 ` Segher Boessenkool
2020-09-10 15:44 ` Segher Boessenkool
2020-09-10 15:44 ` Segher Boessenkool
2020-09-03 15:49 ` Linus Torvalds
2020-09-03 15:49 ` Linus Torvalds
2020-09-04 6:00 ` Ingo Molnar
2020-09-04 6:00 ` Ingo Molnar
2020-09-04 17:58 ` Alexey Dobriyan
2020-09-04 17:58 ` Alexey Dobriyan
2020-09-04 18:42 ` Linus Torvalds
2020-09-04 18:42 ` Linus Torvalds
2020-09-04 21:01 ` David Laight
2020-09-04 21:01 ` David Laight
2020-09-05 7:16 ` Christophe Leroy
2020-09-05 7:16 ` Christophe Leroy
2020-09-05 10:13 ` David Laight [this message]
2020-09-05 10:13 ` David Laight
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