From: <dinhngoc.tu@irit.fr>
To: "'Jan Beulich'" <jbeulich@suse.com>
Cc: <xen-devel@lists.xenproject.org>
Subject: RE: [PATCH] x86: Use low memory size directly from Multiboot
Date: Wed, 9 Feb 2022 12:46:07 +0100 [thread overview]
Message-ID: <000001d81daa$a0790080$e16b0180$@irit.fr> (raw)
In-Reply-To: <fe2e94e8-9e46-82be-6e83-391f4709ef75@suse.com>
> The comment here is a pretty clear indication that bad values may have been
> observed, even if this was only in the distant past. But we have to not
> regress even on very old boot loaders.
>
> Is the kexec case recognizable by any means (including to distinguish kexec
> properly communicating the value vs it not doing so, as iirc it was said on irc
> that this didn't always work correctly there), such that we could skip using
> the BDA value in that case?
Old Kexec used to report the value in bytes instead of kilobytes like it's supposed to. I can make a special case for that so that we won't have to rely on the BDA.
next prev parent reply other threads:[~2022-02-09 11:46 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-09 11:00 [PATCH] x86: Use low memory size directly from Multiboot dinhngoc.tu
2022-02-09 11:25 ` Jan Beulich
2022-02-09 11:46 ` dinhngoc.tu [this message]
2022-02-09 13:12 ` [PATCH v2] " Tu Dinh Ngoc
2022-02-09 14:25 ` Jan Beulich
2022-02-09 15:20 ` dinhngoc.tu
2022-02-09 15:22 ` Jan Beulich
2022-02-09 15:36 ` dinhngoc.tu
2022-02-09 15:56 ` Roger Pau Monné
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