From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Jan Beulich <JBeulich@suse.com>,
xen-devel <xen-devel@lists.xenproject.org>
Cc: Julien Grall <julien.grall@arm.com>,
Paul Durrant <paul.durrant@citrix.com>
Subject: Re: [PATCH] x86/boot: re-arrange how/when we do disk I/O
Date: Mon, 12 Jun 2017 16:33:37 +0100 [thread overview]
Message-ID: <050ce8ed-78dc-7e1b-228b-0ff1aa1c47e1@citrix.com> (raw)
In-Reply-To: <593ECB5D0200007800162126@prv-mh.provo.novell.com>
On 12/06/17 16:11, Jan Beulich wrote:
> We place the trampoline no lower than at 256k, so we have ample space
> to read the MBRs of BIOS disks into an aligned buffer right below the
> trampoline (not doing so has been found to be a problem on a buggy BIOS
> coming with a Skull Canyon NUC). To facilitate that move MBR reading
> past EDD info retrieval.
>
> Also add a wrap check to the EDD info retrieval loop, to match that in
> the MBR reading one.
>
> Reported-by: Paul Durrant <Paul.Durrant@citrix.com>
> Signed-off-by: Jan Beulich <jbeulich@suse.com>
> Tested-by: Paul Durrant <Paul.Durrant@citrix.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
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prev parent reply other threads:[~2017-06-12 15:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-12 15:11 [PATCH] x86/boot: re-arrange how/when we do disk I/O Jan Beulich
2017-06-12 15:27 ` Jan Beulich
2017-06-12 16:59 ` Julien Grall
2017-06-26 13:03 ` Julien Grall
2017-06-26 15:14 ` Paul Durrant
2017-06-12 15:33 ` Andrew Cooper [this message]
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