From: Dave Young <dyoung@redhat.com>
To: Borislav Petkov <bp@alien8.de>
Cc: Junichi Nomura <j-nomura@ce.jp.nec.com>,
Chao Fan <fanc.fnst@cn.fujitsu.com>, Baoquan He <bhe@redhat.com>,
Kairui Song <kasong@redhat.com>,
"x86@kernel.org" <x86@kernel.org>,
"kexec@lists.infradead.org" <kexec@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernels
Date: Thu, 18 Apr 2019 09:24:02 +0800 [thread overview]
Message-ID: <20190418012402.GB4977@dhcp-128-65.nay.redhat.com> (raw)
In-Reply-To: <20190417082250.GA20492@zn.tnic>
On 04/17/19 at 10:22am, Borislav Petkov wrote:
> On Wed, Apr 17, 2019 at 09:38:38AM +0800, Dave Young wrote:
> > But if you want to apply it now, I think it is fine as well, probably
> > the laptop issue is lenovo firmware specific, we can add rsdp in cmdline
> > or boot params via kexec-tools so it should be good by using new kexec-tools.
>
> I'm not in a hurry to apply it - if you guys wanna debug this further,
> sure, we can wait and then tag all the fixes for stable so that they can
> get backported.
Thanks! According to our debugging this indeed need amending. We tried
maping the efi systab/acpi table area with some hardcode changes, and
test passed. This means the previous tests people have done probably
just happened work, maybe early pg table happen to cover the memory
areas in their cases. We noticed in vm guest and some other machines, the systab
all fall into memory under 2G, but the systab of T420 sits in area
0xda...... which is 2G ~ 4G area.
Kairui is trying to work on some fix so that it can be folded into the
current reviewed patch.
Thanks
Dave
WARNING: multiple messages have this Message-ID (diff)
From: Dave Young <dyoung@redhat.com>
To: Borislav Petkov <bp@alien8.de>
Cc: Chao Fan <fanc.fnst@cn.fujitsu.com>,
Kairui Song <kasong@redhat.com>, Baoquan He <bhe@redhat.com>,
"x86@kernel.org" <x86@kernel.org>,
"kexec@lists.infradead.org" <kexec@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Junichi Nomura <j-nomura@ce.jp.nec.com>
Subject: Re: [PATCH] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernels
Date: Thu, 18 Apr 2019 09:24:02 +0800 [thread overview]
Message-ID: <20190418012402.GB4977@dhcp-128-65.nay.redhat.com> (raw)
In-Reply-To: <20190417082250.GA20492@zn.tnic>
On 04/17/19 at 10:22am, Borislav Petkov wrote:
> On Wed, Apr 17, 2019 at 09:38:38AM +0800, Dave Young wrote:
> > But if you want to apply it now, I think it is fine as well, probably
> > the laptop issue is lenovo firmware specific, we can add rsdp in cmdline
> > or boot params via kexec-tools so it should be good by using new kexec-tools.
>
> I'm not in a hurry to apply it - if you guys wanna debug this further,
> sure, we can wait and then tag all the fixes for stable so that they can
> get backported.
Thanks! According to our debugging this indeed need amending. We tried
maping the efi systab/acpi table area with some hardcode changes, and
test passed. This means the previous tests people have done probably
just happened work, maybe early pg table happen to cover the memory
areas in their cases. We noticed in vm guest and some other machines, the systab
all fall into memory under 2G, but the systab of T420 sits in area
0xda...... which is 2G ~ 4G area.
Kairui is trying to work on some fix so that it can be folded into the
current reviewed patch.
Thanks
Dave
_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec
next prev parent reply other threads:[~2019-04-18 1:24 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-08 23:10 [PATCH v4] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel Junichi Nomura
2019-04-08 23:10 ` Junichi Nomura
2019-04-10 17:14 ` Borislav Petkov
2019-04-10 17:14 ` Borislav Petkov
2019-04-10 23:34 ` Junichi Nomura
2019-04-10 23:34 ` Junichi Nomura
2019-04-11 8:09 ` Borislav Petkov
2019-04-11 8:09 ` Borislav Petkov
2019-04-11 8:16 ` Junichi Nomura
2019-04-11 8:16 ` Junichi Nomura
2019-04-11 8:37 ` Borislav Petkov
2019-04-11 8:37 ` Borislav Petkov
2019-04-11 9:13 ` Junichi Nomura
2019-04-11 9:13 ` Junichi Nomura
2019-04-11 9:21 ` Boris Petkov
2019-04-11 9:21 ` Boris Petkov
2019-04-11 9:32 ` Junichi Nomura
2019-04-11 9:32 ` Junichi Nomura
2019-04-11 9:40 ` Boris Petkov
2019-04-11 9:40 ` Boris Petkov
2019-04-11 12:58 ` Borislav Petkov
2019-04-11 12:58 ` Borislav Petkov
2019-04-12 2:54 ` Junichi Nomura
2019-04-12 2:54 ` Junichi Nomura
2019-04-12 8:49 ` Borislav Petkov
2019-04-12 8:49 ` Borislav Petkov
2019-04-12 13:35 ` Borislav Petkov
2019-04-12 13:35 ` Borislav Petkov
2019-04-15 7:01 ` Junichi Nomura
2019-04-15 7:01 ` Junichi Nomura
2019-04-15 9:07 ` Borislav Petkov
2019-04-15 9:07 ` Borislav Petkov
2019-04-15 10:25 ` Borislav Petkov
2019-04-15 10:25 ` Borislav Petkov
2019-04-15 23:00 ` Junichi Nomura
2019-04-15 23:00 ` Junichi Nomura
2019-04-15 23:14 ` Junichi Nomura
2019-04-15 23:14 ` Junichi Nomura
2019-04-16 9:45 ` Borislav Petkov
2019-04-16 9:45 ` Borislav Petkov
2019-04-16 23:09 ` kexec crash on OVMF i386 + x86_64 kernel (Re: [PATCH v4] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel) Junichi Nomura
2019-04-16 23:09 ` Junichi Nomura
2019-04-17 5:14 ` Dave Young
2019-04-17 5:14 ` Dave Young
2019-04-17 17:57 ` Prakhya, Sai Praneeth
2019-04-17 17:57 ` Prakhya, Sai Praneeth
2019-04-16 9:40 ` [PATCH v4] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel Borislav Petkov
2019-04-16 9:40 ` Borislav Petkov
2019-04-16 9:52 ` [PATCH] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernels Borislav Petkov
2019-04-16 9:52 ` Borislav Petkov
2019-04-16 10:02 ` Ingo Molnar
2019-04-16 10:02 ` Ingo Molnar
2019-04-16 10:31 ` Borislav Petkov
2019-04-16 10:31 ` Borislav Petkov
2019-04-16 11:41 ` Dave Young
2019-04-16 11:41 ` Dave Young
2019-04-16 13:22 ` Borislav Petkov
2019-04-16 13:22 ` Borislav Petkov
2019-04-17 1:38 ` Dave Young
2019-04-17 1:38 ` Dave Young
2019-04-17 4:57 ` Dave Young
2019-04-17 4:57 ` Dave Young
2019-04-17 6:00 ` Kairui Song
2019-04-17 6:00 ` Kairui Song
2019-04-17 7:08 ` Dave Young
2019-04-17 7:08 ` Dave Young
2019-04-17 8:22 ` Borislav Petkov
2019-04-17 8:22 ` Borislav Petkov
2019-04-18 1:24 ` Dave Young [this message]
2019-04-18 1:24 ` Dave Young
2019-04-19 8:34 ` [RFC PATCH] kexec, x86/boot: map systab region in identity mapping before accessing it Kairui Song
2019-04-19 8:34 ` Kairui Song
2019-04-19 8:58 ` Baoquan He
2019-04-19 8:58 ` Baoquan He
2019-04-19 9:39 ` Kairui Song
2019-04-19 9:39 ` Kairui Song
2019-04-16 22:44 ` [PATCH v4] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel Junichi Nomura
2019-04-16 22:44 ` Junichi Nomura
2019-04-17 7:02 ` Dave Young
2019-04-17 7:02 ` Dave Young
2019-04-17 8:54 ` Borislav Petkov
2019-04-17 8:54 ` Borislav Petkov
2019-04-17 9:02 ` Borislav Petkov
2019-04-17 9:02 ` Borislav Petkov
2019-04-17 10:31 ` Chao Fan
2019-04-17 10:31 ` Chao Fan
2019-04-11 8:42 ` Baoquan He
2019-04-11 8:42 ` Baoquan He
2019-04-11 9:14 ` Junichi Nomura
2019-04-11 9:14 ` Junichi Nomura
2019-04-12 0:23 ` Baoquan He
2019-04-12 0:23 ` Baoquan He
2019-04-15 7:46 ` Dave Young
2019-04-15 7:46 ` Dave Young
2019-06-06 19:22 ` [tip:x86/boot] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernels tip-bot for Junichi Nomura
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=20190418012402.GB4977@dhcp-128-65.nay.redhat.com \
--to=dyoung@redhat.com \
--cc=bhe@redhat.com \
--cc=bp@alien8.de \
--cc=fanc.fnst@cn.fujitsu.com \
--cc=j-nomura@ce.jp.nec.com \
--cc=kasong@redhat.com \
--cc=kexec@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--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.