All of lore.kernel.org
 help / color / mirror / Atom feed
From: Baoquan He <bhe@redhat.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org, kirill.shutemov@linux.intel.com,
	mingo@kernel.org, bp@alien8.de, hpa@zytor.com, dyoung@redhat.com,
	x86@kernel.org
Subject: Re: [PATCH v3 1/3] x86/boot: Add xloadflags bits for 5-level kernel checking
Date: Sat, 6 Apr 2019 09:40:53 +0800	[thread overview]
Message-ID: <20190406014053.GW7627@MiWiFi-R3L-srv> (raw)
In-Reply-To: <alpine.DEB.2.21.1904052220480.1802@nanos.tec.linutronix.de>

On 04/05/19 at 10:23pm, Thomas Gleixner wrote:
> On Tue, 12 Mar 2019, Baoquan He wrote:
> 
> > Add two bits XLF_5LEVEL and XLF_5LEVEL_ENABLED for 5-level kernel.
> > Bit XLF_5LEVEL indicates if 5-level related code is contained
> > in this kernel.
> > Bit XLF_5LEVEL_ENABLED indicates if CONFIG_X86_5LEVEL=y is set.
> > 
> > They are being used in later patch to check if kexec/kdump kernel
> > is loaded in right place.
> 
> Only XLF_5LEVEL is checked. So what's the second flag for?

I put the explanation why only XLF_5LEVEL is checked in cover letter.
Will add them in this log.

  reply	other threads:[~2019-04-06  1:41 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-12 10:30 [PATCH v3 0/3] Add restrictions for kexec/kdump jumping between 5-level and 4-level kernel Baoquan He
2019-03-12 10:30 ` [PATCH v3 1/3] x86/boot: Add xloadflags bits for 5-level kernel checking Baoquan He
2019-04-05 20:23   ` Thomas Gleixner
2019-04-06  1:40     ` Baoquan He [this message]
2019-03-12 10:30 ` [PATCH v3 2/3] x86/kexec/64: Error out if try to jump to old 4-level kernel from 5-level kernel Baoquan He
2019-04-05 20:38   ` Thomas Gleixner
2019-04-06  1:39     ` Baoquan He
2019-03-12 10:30 ` [PATCH v3 3/3] x86/kdump/64: Change the upper limit of crashkernel reservation Baoquan He
2019-04-04  2:20 ` [PATCH v3 0/3] Add restrictions for kexec/kdump jumping between 5-level and 4-level kernel Baoquan He
2019-04-06  1:43 ` Baoquan He

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=20190406014053.GW7627@MiWiFi-R3L-srv \
    --to=bhe@redhat.com \
    --cc=bp@alien8.de \
    --cc=dyoung@redhat.com \
    --cc=hpa@zytor.com \
    --cc=kirill.shutemov@linux.intel.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@kernel.org \
    --cc=tglx@linutronix.de \
    --cc=x86@kernel.org \
    /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
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.