From: Vivek Goyal <vgoyal@redhat.com>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: mjg59@srcf.ucam.org, jkosina@suse.cz, kexec@lists.infradead.org,
linux-kernel@vger.kernel.org, ebiederm@xmission.com,
greg@kroah.com
Subject: Re: [PATCH 08/11] kexec-bzImage: Support for loading bzImage using 64bit entry
Date: Tue, 25 Feb 2014 13:43:42 -0500 [thread overview]
Message-ID: <20140225184342.GF2701@redhat.com> (raw)
In-Reply-To: <530CE320.6000808@zytor.com>
On Tue, Feb 25, 2014 at 10:38:24AM -0800, H. Peter Anvin wrote:
> On 01/27/2014 10:57 AM, Vivek Goyal wrote:
> > This is loader specific code which can load bzImage and set it up for
> > 64bit entry. This does not take care of 32bit entry or real mode entry
> > yet.
>
> Is there any use in that? Real mode entry especially is more than a bit
> scary when coming from another kernel already...
I think 64bit entry should be good for x86_64. When we start supporting
this new system call on x86(32bit), then we can implement 32bit entry
support (which should not be hard).
I have no plans to implement 16bit entry support. I just wanted to mention
explicitly what is currently supported.
Thanks
Vivek
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WARNING: multiple messages have this Message-ID (diff)
From: Vivek Goyal <vgoyal@redhat.com>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: linux-kernel@vger.kernel.org, kexec@lists.infradead.org,
ebiederm@xmission.com, mjg59@srcf.ucam.org, greg@kroah.com,
jkosina@suse.cz
Subject: Re: [PATCH 08/11] kexec-bzImage: Support for loading bzImage using 64bit entry
Date: Tue, 25 Feb 2014 13:43:42 -0500 [thread overview]
Message-ID: <20140225184342.GF2701@redhat.com> (raw)
In-Reply-To: <530CE320.6000808@zytor.com>
On Tue, Feb 25, 2014 at 10:38:24AM -0800, H. Peter Anvin wrote:
> On 01/27/2014 10:57 AM, Vivek Goyal wrote:
> > This is loader specific code which can load bzImage and set it up for
> > 64bit entry. This does not take care of 32bit entry or real mode entry
> > yet.
>
> Is there any use in that? Real mode entry especially is more than a bit
> scary when coming from another kernel already...
I think 64bit entry should be good for x86_64. When we start supporting
this new system call on x86(32bit), then we can implement 32bit entry
support (which should not be hard).
I have no plans to implement 16bit entry support. I just wanted to mention
explicitly what is currently supported.
Thanks
Vivek
next prev parent reply other threads:[~2014-02-25 18:44 UTC|newest]
Thread overview: 106+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-27 18:57 [RFC PATCH 00/11][V2] kexec: A new system call to allow in kernel loading Vivek Goyal
2014-01-27 18:57 ` Vivek Goyal
2014-01-27 18:57 ` [PATCH 01/11] kexec: Move segment verification code in a separate function Vivek Goyal
2014-01-27 18:57 ` Vivek Goyal
2014-01-27 18:57 ` [PATCH 02/11] resource: Provide new functions to walk through resources Vivek Goyal
2014-01-27 18:57 ` Vivek Goyal
2014-01-27 18:57 ` [PATCH 03/11] bin2c: Move bin2c in scripts/basic Vivek Goyal
2014-01-27 18:57 ` Vivek Goyal
2014-01-27 21:12 ` Michal Marek
2014-01-27 21:12 ` Michal Marek
2014-01-27 21:18 ` Vivek Goyal
2014-01-27 21:18 ` Vivek Goyal
2014-01-27 21:54 ` Michal Marek
2014-01-27 21:54 ` Michal Marek
2014-01-27 18:57 ` [PATCH 04/11] kernel: Build bin2c based on config option CONFIG_BUILD_BIN2C Vivek Goyal
2014-01-27 18:57 ` Vivek Goyal
2014-01-27 18:57 ` [PATCH 05/11] kexec: Make kexec_segment user buffer pointer a union Vivek Goyal
2014-01-27 18:57 ` Vivek Goyal
2014-01-27 18:57 ` [PATCH 06/11] kexec: A new system call, kexec_file_load, for in kernel kexec Vivek Goyal
2014-01-27 18:57 ` Vivek Goyal
2014-02-21 14:59 ` Borislav Petkov
2014-02-21 14:59 ` Borislav Petkov
2014-02-24 16:41 ` Vivek Goyal
2014-02-24 16:41 ` Vivek Goyal
2014-02-25 19:35 ` Petr Tesarik
2014-02-25 19:35 ` Petr Tesarik
2014-02-25 21:47 ` Borislav Petkov
2014-02-25 21:47 ` Borislav Petkov
2014-02-26 15:37 ` Borislav Petkov
2014-02-26 15:37 ` Borislav Petkov
2014-02-26 15:46 ` Vivek Goyal
2014-02-26 15:46 ` Vivek Goyal
2014-01-27 18:57 ` [PATCH 07/11] kexec: Create a relocatable object called purgatory Vivek Goyal
2014-01-27 18:57 ` Vivek Goyal
2014-02-24 19:08 ` H. Peter Anvin
2014-02-24 19:08 ` H. Peter Anvin
2014-02-25 16:43 ` Vivek Goyal
2014-02-25 16:43 ` Vivek Goyal
2014-02-25 16:55 ` H. Peter Anvin
2014-02-25 16:55 ` H. Peter Anvin
2014-02-25 18:20 ` Vivek Goyal
2014-02-25 18:20 ` Vivek Goyal
2014-02-25 21:09 ` H. Peter Anvin
2014-02-25 21:09 ` H. Peter Anvin
2014-02-26 14:52 ` Vivek Goyal
2014-02-26 14:52 ` Vivek Goyal
2014-02-26 16:00 ` Borislav Petkov
2014-02-26 16:00 ` Borislav Petkov
2014-02-26 16:32 ` Vivek Goyal
2014-02-26 16:32 ` Vivek Goyal
2014-02-27 15:44 ` Borislav Petkov
2014-02-27 15:44 ` Borislav Petkov
2014-01-27 18:57 ` [PATCH 08/11] kexec-bzImage: Support for loading bzImage using 64bit entry Vivek Goyal
2014-01-27 18:57 ` Vivek Goyal
2014-02-25 18:38 ` H. Peter Anvin
2014-02-25 18:38 ` H. Peter Anvin
2014-02-25 18:43 ` Vivek Goyal [this message]
2014-02-25 18:43 ` Vivek Goyal
2014-02-27 21:36 ` Borislav Petkov
2014-02-27 21:36 ` Borislav Petkov
2014-02-28 16:31 ` Vivek Goyal
2014-02-28 16:31 ` Vivek Goyal
2014-03-05 16:37 ` Borislav Petkov
2014-03-05 16:37 ` Borislav Petkov
2014-03-05 16:40 ` H. Peter Anvin
2014-03-05 16:40 ` H. Peter Anvin
2014-03-05 18:40 ` Vivek Goyal
2014-03-05 18:40 ` Vivek Goyal
2014-03-05 19:47 ` Borislav Petkov
2014-03-05 19:47 ` Borislav Petkov
2014-01-27 18:57 ` [PATCH 09/11] kexec: Provide a function to add a segment at fixed address Vivek Goyal
2014-01-27 18:57 ` Vivek Goyal
2014-02-27 21:52 ` Borislav Petkov
2014-02-27 21:52 ` Borislav Petkov
2014-02-28 16:56 ` Vivek Goyal
2014-02-28 16:56 ` Vivek Goyal
2014-03-10 10:01 ` Borislav Petkov
2014-03-10 10:01 ` Borislav Petkov
2014-03-10 15:35 ` Vivek Goyal
2014-03-10 15:35 ` Vivek Goyal
2014-01-27 18:57 ` [PATCH 10/11] kexec: Support for loading ELF x86_64 images Vivek Goyal
2014-01-27 18:57 ` Vivek Goyal
2014-02-28 14:58 ` Borislav Petkov
2014-02-28 14:58 ` Borislav Petkov
2014-02-28 17:11 ` Vivek Goyal
2014-02-28 17:11 ` Vivek Goyal
2014-03-07 17:12 ` Borislav Petkov
2014-03-07 17:12 ` Borislav Petkov
2014-03-07 18:39 ` Borislav Petkov
2014-03-07 18:39 ` Borislav Petkov
2014-03-10 14:42 ` Vivek Goyal
2014-03-10 14:42 ` Vivek Goyal
2014-03-12 16:19 ` Borislav Petkov
2014-03-12 16:19 ` Borislav Petkov
2014-03-12 17:24 ` Vivek Goyal
2014-03-12 17:24 ` Vivek Goyal
2014-01-27 18:57 ` [PATCH 11/11] kexec: Support for Kexec on panic using new system call Vivek Goyal
2014-01-27 18:57 ` Vivek Goyal
2014-02-28 17:28 ` Borislav Petkov
2014-02-28 17:28 ` Borislav Petkov
2014-02-28 21:06 ` Vivek Goyal
2014-02-28 21:06 ` Vivek Goyal
2014-05-26 8:25 ` [RFC PATCH 00/11][V2] kexec: A new system call to allow in kernel loading Borislav Petkov
2014-05-26 8:25 ` Borislav Petkov
2014-05-27 12:34 ` Vivek Goyal
2014-05-27 12:34 ` Vivek Goyal
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