linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Borislav Petkov <bp@alien8.de>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: X86 ML <x86@kernel.org>, LKML <linux-kernel@vger.kernel.org>,
	Borislav Petkov <bp@suse.de>
Subject: [PATCH 0/4] x86, head_32: Some cleanups
Date: Sun,  3 Feb 2013 17:14:35 +0100	[thread overview]
Message-ID: <1359908079-10469-1-git-send-email-bp@alien8.de> (raw)

From: Borislav Petkov <bp@suse.de>

Hi,

here are some initial low-hanging fruits wrt head_32.S cleanup. I've
made them as easily digestible as possible; after all, this is boot asm
and meddling with it tends to upset kernels.

Also, I've made the assumption that having boot_cpu_data.cpuid_level
contain the CPUID level for the boot cpu means that the APs have the
same CPUID level. This should be the case on X86.

They boot fine 486 and 486SX in qemu but I'd like to hear whether
the direction I'm going is ok before I continue testing them on real
hardware.

Thanks.


Borislav Petkov (4):
  x86, head_32: Remove i386 pieces
  x86: Detect CPUID support early at boot
  x86, head_32: Remove CPUID detection from default_entry
  x86, 32-bit: Drop new_cpu_data

 arch/x86/include/asm/processor.h |   1 -
 arch/x86/kernel/head_32.S        | 105 ++++++++++++++++-----------------------
 arch/x86/kernel/setup.c          |   3 --
 arch/x86/lguest/boot.c           |   6 +--
 arch/x86/xen/enlighten.c         |   8 +--
 5 files changed, 51 insertions(+), 72 deletions(-)

-- 
1.8.1.2.422.g08c0e7f


             reply	other threads:[~2013-02-03 16:14 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-03 16:14 Borislav Petkov [this message]
2013-02-03 16:14 ` [PATCH 1/4] x86, head_32: Remove i386 pieces Borislav Petkov
2013-02-03 16:14 ` [PATCH 2/4] x86: Detect CPUID support early at boot Borislav Petkov
2013-02-03 16:14 ` [PATCH 3/4] x86, head_32: Remove CPUID detection from default_entry Borislav Petkov
2013-02-03 16:14 ` [PATCH 4/4] x86, 32-bit: Drop new_cpu_data Borislav Petkov
2013-02-03 23:44   ` H. Peter Anvin
2013-02-04  5:27     ` Borislav Petkov
2013-02-04  5:44       ` H. Peter Anvin
2013-02-04  9:02         ` Borislav Petkov
2013-02-04 16:55           ` H. Peter Anvin
2013-02-04 17:01             ` Borislav Petkov

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1359908079-10469-1-git-send-email-bp@alien8.de \
    --to=bp@alien8.de \
    --cc=bp@suse.de \
    --cc=hpa@zytor.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=x86@kernel.org \
    --subject='Re: [PATCH 0/4] x86, head_32: Some cleanups' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
on how to clone and mirror all data and code used for this inbox