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From: "Roger Pau Monné" <roger.pau@citrix.com>
To: Andrew Cooper <andrew.cooper3@citrix.com>,
	xen-devel <xen-devel@lists.xenproject.org>
Cc: Elena Ufimtseva <elena.ufimtseva@oracle.com>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Tim Deegan <tim@xen.org>, Jan Beulich <JBeulich@suse.com>
Subject: Re: [Draft B] Boot ABI for HVM guests without a device-model
Date: Wed, 26 Aug 2015 17:38:13 +0200	[thread overview]
Message-ID: <55DDDD65.1000207@citrix.com> (raw)
In-Reply-To: <55DDAEA2.8000104@citrix.com>

El 26/08/15 a les 14.18, Andrew Cooper ha escrit:
> On 26/08/15 12:48, Roger Pau Monné wrote: 
>> ELFNOTE(Xen, XEN_ELFNOTE_FEATURES,              .asciz, "writable_descriptor_tables|auto_translated_physmap|supervisor_mode_kernel")
>> ELFNOTE(Xen, XEN_ELFNOTE_SUPPORTED_FEATURES,    .long ((1 << XENFEAT_writable_page_tables) | \
>>                                                        (1 << XENFEAT_auto_translated_physmap) | \
>>                                                        (1 << XENFEAT_supervisor_mode_kernel) | \
>>                                                        (1 << XENFEAT_hvm_callback_vector))
> 
> Can we see about fixing the overloading of XENFEAT_supervisor_mode_kernel ?
> 
> IMO it should be relegated to history.  It was an old,
> not-fully-implemented pv feature (subsequently removed completely) which
> is not relevant to HVM guests.

Maybe we can get rid of both XEN_ELFNOTE_FEATURES and
XEN_ELFNOTE_SUPPORTED_FEATURES if the kernel only supports PVH?

Roger.


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      reply	other threads:[~2015-08-26 15:38 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-26 11:48 [Draft B] Boot ABI for HVM guests without a device-model Roger Pau Monné
2015-08-26 12:00 ` Jan Beulich
2015-08-26 12:12   ` Andrew Cooper
2015-08-26 14:44     ` Roger Pau Monné
2015-08-27  8:04       ` Jan Beulich
2015-08-27  9:43         ` Andrew Cooper
2015-08-27  9:57           ` Roger Pau Monné
2015-08-27 11:08             ` Jan Beulich
2015-08-26 12:18 ` Andrew Cooper
2015-08-26 15:38   ` Roger Pau Monné [this message]

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