All of lore.kernel.org
 help / color / mirror / Atom feed
From: Juergen Gross <jgross@suse.com>
To: Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	George Dunlap <dunlapg@umich.edu>
Cc: Greg KH <gregkh@linuxfoundation.org>,
	stable <stable@vger.kernel.org>,
	xen-devel <xen-devel@lists.xenproject.org>
Subject: Re: [Xen-devel] Patches for stable
Date: Thu, 5 Apr 2018 15:06:59 +0200	[thread overview]
Message-ID: <4bf257f2-dad7-62d2-ad5b-8972c0311119@suse.com> (raw)
In-Reply-To: <ce82c767-cfb6-5bb7-1733-7b322a4360f2@oracle.com>

On 05/04/18 15:00, Boris Ostrovsky wrote:
> On 04/05/2018 08:19 AM, Juergen Gross wrote:
>> On 05/04/18 12:06, George Dunlap wrote:
>>
>>> Aren't there flags in the binary somewhere that could tell the
>>> toolstack / Xen whether the kernel in question needs the RSDP table in
>>> lowmem, or whether it can be put higher?
>> Not really. Analyzing the binary whether it accesses the rsdp_addr in
>> the start_info isn't the way to go, IMO.
>>
>> I've sent a patch to xen-devel adding a quirk flag to the domain's
>> config to enable the admin special casing such an "old" kernel.
> 
> Can we backport latest struct hvm_start_info changes (which bumped
> interface version) to 4.11 and pass RSDP only for versions >=1?

And this would help how?

RSDP address is passed today, the kernel just doesn't read it. And
how should Xen know which interface version the kernel is supporting?
And Xen needs to know that in advance in order to place the RSDP in
low memory in case the kernel isn't reading the RSDP address from
start_info.


Juergen

  parent reply	other threads:[~2018-04-05 13:07 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-04 10:38 Patches for stable Juergen Gross
2018-04-04 14:27 ` Greg KH
2018-04-04 14:27 ` Greg KH
2018-04-04 14:30   ` Juergen Gross
2018-04-04 14:46     ` Greg KH
2018-04-04 15:12       ` Juergen Gross
2018-04-04 15:12       ` Juergen Gross
2018-04-04 15:42         ` Greg KH
2018-04-04 16:32           ` Juergen Gross
2018-04-04 16:32           ` Juergen Gross
2018-04-05  6:33             ` Greg KH
2018-04-05  7:02               ` Juergen Gross
2018-04-05  7:14                 ` Greg KH
2018-04-05  7:14                 ` Greg KH
2018-04-05  8:00                   ` Juergen Gross
2018-04-05  8:00                   ` [Xen-devel] " Juergen Gross
2018-04-05 10:06                     ` George Dunlap
2018-04-05 10:06                     ` [Xen-devel] " George Dunlap
2018-04-05 10:15                       ` George Dunlap
2018-04-05 10:15                       ` [Xen-devel] " George Dunlap
2018-04-05 12:19                       ` Juergen Gross
2018-04-05 12:19                       ` [Xen-devel] " Juergen Gross
2018-04-05 13:00                         ` Boris Ostrovsky
2018-04-05 13:00                         ` [Xen-devel] " Boris Ostrovsky
2018-04-05 13:06                           ` Juergen Gross
2018-04-05 13:06                           ` Juergen Gross [this message]
2018-04-05 13:42                             ` George Dunlap
2018-04-05 13:42                             ` [Xen-devel] " George Dunlap
2018-04-05 14:09                               ` Juergen Gross
2018-04-05 14:56                                 ` George Dunlap
2018-04-05 14:56                                 ` [Xen-devel] " George Dunlap
2018-04-05 17:11                                   ` Juergen Gross
2018-04-05 18:33                                     ` Boris Ostrovsky
2018-04-06  8:00                                       ` Juergen Gross
2018-04-06  9:38                                         ` George Dunlap
2018-04-06  9:49                                       ` George Dunlap
2018-04-06 10:02                                         ` Juergen Gross
2018-04-06 10:07                                           ` George Dunlap
2018-04-06 10:57                                             ` Juergen Gross
2018-04-06 11:13                                               ` George Dunlap
2018-04-06 13:12                                                 ` Juergen Gross
2018-04-06 13:33                                                   ` George Dunlap
2018-04-06 14:10                                                     ` Boris Ostrovsky
2018-04-06 15:15                                                       ` Juergen Gross
2018-04-06 10:13                                     ` George Dunlap
2018-04-06 10:44                                       ` Juergen Gross
2018-04-05 14:09                               ` Juergen Gross
2018-04-05 20:20                 ` Thomas Backlund
2018-04-05 20:20                 ` Thomas Backlund
2018-04-05  7:02               ` Juergen Gross
2018-04-05  6:33             ` Greg KH
2018-04-04 15:42         ` Greg KH
2018-04-04 14:46     ` Greg KH
2018-04-04 14:30   ` Juergen Gross

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=4bf257f2-dad7-62d2-ad5b-8972c0311119@suse.com \
    --to=jgross@suse.com \
    --cc=boris.ostrovsky@oracle.com \
    --cc=dunlapg@umich.edu \
    --cc=gregkh@linuxfoundation.org \
    --cc=stable@vger.kernel.org \
    --cc=xen-devel@lists.xenproject.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.