From: "H. Peter Anvin" <hpa@zytor.com>
To: "Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>,
"Andrew Cooper" <andrew.cooper3@citrix.com>,
"Luis R. Rodriguez" <mcgrof@suse.com>,
"Roger Pau Monné" <roger.pau@citrix.com>
Cc: Juergen Gross <jgross@suse.com>,
Jeremy Fitzhardinge <jeremy@goop.org>,
Rusty Russell <rusty@rustcorp.com.au>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Andy Lutomirski <luto@amacapital.net>,
David Vrabel <david.vrabel@citrix.com>,
xen-devel@lists.xenproject.org,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Borislav Petkov <bp@suse.de>
Subject: Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest
Date: Sat, 23 Jan 2016 10:28:25 -0800 [thread overview]
Message-ID: <245705D4-4534-4BB2-96D7-2B48A3E41284@zytor.com> (raw)
In-Reply-To: <E0EC0392-0AAA-482D-A0C3-01AA1C8EDB11@oracle.com>
On January 23, 2016 8:12:23 AM PST, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote:
>On January 23, 2016 11:01:06 AM EST, "H. Peter Anvin" <hpa@zytor.com>
>wrote:
>>On January 23, 2016 7:34:33 AM PST, Konrad Rzeszutek Wilk
>><konrad.wilk@oracle.com> wrote:
>>>
>>>>However, this stub belongs in Linux, not in the Xen toolstack. That
>>>>way, when the Linux boot protocol is modified, both sides can be
>>>>updated
>>>>accordingly.
>>>
>>>I would add that this idea is borrowed from the EFI stub code that
>>>Linux has which also constructs the boot parameter structure when
>>>invoked (either from firmware or from EFI shell).
>>
>>There is a huge difference though: EFI is a widely used multivendor
>>industry standard. You are taking about something Xen-specific, and
>>which in good Xen tradition isn't even documented, apparently (did we
>>ever get documentation for the hypervisor ABI?)
>>
>>Asking "why burden Xen with something Linux-specific" is a pretty
>>extreme case of the tail wagging the dog.
>>
>>That being said, before any code can be put anywhere, it needs to be
>>written. We can argue where to put it later. We went through this
>>process with the EFI stub, too: a standalone implementation (efilinux)
>>first.
>
>http://lists.xenproject.org/archives/html/xen-devel/2015-12/msg01793.html
>
>I believe is the latest version. Roger (CCed) has probably an updated
>one.
I suspect you should write a noninteractive bootloader as a reference implementation, and then consider porting Grub2 and maybe Syslinux to your ABI for those that want a full featured interactive bootloader compatible with the normal management.
--
Sent from my Android device with K-9 Mail. Please excuse brevity and formatting.
next prev parent reply other threads:[~2016-01-23 18:29 UTC|newest]
Thread overview: 121+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-22 21:35 [PATCH v1 00/12] HVMlite domU support Boris Ostrovsky
2016-01-22 21:35 ` Boris Ostrovsky
2016-01-22 21:35 ` [PATCH v1 01/12] x86/smp: Make start_secondary() and initial_pg_pmd visible globally Boris Ostrovsky
2016-01-22 21:35 ` Boris Ostrovsky
2016-01-25 10:53 ` David Vrabel
2016-01-25 10:53 ` David Vrabel
2016-01-25 15:30 ` Boris Ostrovsky
2016-01-25 15:30 ` Boris Ostrovsky
2016-01-26 21:58 ` Borislav Petkov
2016-01-26 21:58 ` Borislav Petkov
2016-01-22 21:35 ` [PATCH v1 02/12] xen/hvmlite: Factor out common kernel init code Boris Ostrovsky
2016-01-22 21:35 ` Boris Ostrovsky
2016-01-22 23:01 ` Luis R. Rodriguez
2016-01-22 23:01 ` Luis R. Rodriguez
2016-01-22 23:12 ` Boris Ostrovsky
2016-01-22 23:27 ` Boris Ostrovsky
2016-01-22 23:27 ` Boris Ostrovsky
2016-01-22 23:41 ` Luis R. Rodriguez
2016-01-22 23:41 ` Luis R. Rodriguez
2016-01-22 23:12 ` Boris Ostrovsky
2016-01-25 11:04 ` David Vrabel
2016-01-25 11:04 ` [Xen-devel] " David Vrabel
2016-01-25 15:42 ` Boris Ostrovsky
2016-01-25 15:42 ` Boris Ostrovsky
2016-01-22 21:35 ` [PATCH v1 03/12] xen/hvmlite: Import hvmlite-related Xen public interfaces Boris Ostrovsky
2016-01-22 21:35 ` Boris Ostrovsky
2016-01-22 21:35 ` [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Boris Ostrovsky
2016-01-22 21:35 ` Boris Ostrovsky
2016-01-22 23:32 ` Luis R. Rodriguez
2016-01-22 23:32 ` Luis R. Rodriguez
2016-01-23 0:30 ` [Xen-devel] " Andrew Cooper
2016-01-23 0:30 ` Andrew Cooper
2016-01-23 0:45 ` [Xen-devel] " Luis R. Rodriguez
2016-01-23 0:45 ` Luis R. Rodriguez
2016-01-23 0:55 ` Luis R. Rodriguez
2016-01-23 0:55 ` [Xen-devel] " Luis R. Rodriguez
2016-01-23 14:49 ` Andrew Cooper
2016-01-23 14:49 ` [Xen-devel] " Andrew Cooper
2016-01-23 15:34 ` Konrad Rzeszutek Wilk
2016-01-23 15:34 ` Konrad Rzeszutek Wilk
2016-01-23 16:01 ` [Xen-devel] " H. Peter Anvin
2016-01-23 16:12 ` Konrad Rzeszutek Wilk
2016-01-23 16:12 ` Konrad Rzeszutek Wilk
2016-01-23 18:28 ` H. Peter Anvin
2016-01-23 18:28 ` H. Peter Anvin [this message]
2016-01-25 10:30 ` Roger Pau Monné
2016-01-25 10:30 ` [Xen-devel] " Roger Pau Monné
2016-01-23 16:01 ` H. Peter Anvin
2016-01-25 22:19 ` Luis R. Rodriguez
2016-01-25 22:19 ` [Xen-devel] " Luis R. Rodriguez
2016-01-25 22:55 ` Boris Ostrovsky
2016-01-26 20:30 ` Luis R. Rodriguez
2016-01-26 20:30 ` [Xen-devel] " Luis R. Rodriguez
2016-01-26 21:51 ` Boris Ostrovsky
2016-01-26 21:51 ` [Xen-devel] " Boris Ostrovsky
2016-01-27 0:04 ` Luis R. Rodriguez
2016-01-27 0:04 ` [Xen-devel] " Luis R. Rodriguez
2016-01-27 2:16 ` Luis R. Rodriguez
2016-01-27 4:54 ` Luis R. Rodriguez
2016-01-27 14:42 ` Konrad Rzeszutek Wilk
2016-01-27 14:50 ` [Xen-devel] " David Vrabel
2016-01-27 15:06 ` Boris Ostrovsky
2016-01-27 15:09 ` David Vrabel
2016-01-27 15:09 ` [Xen-devel] " David Vrabel
2016-01-27 15:17 ` Boris Ostrovsky
2016-01-27 15:29 ` Konrad Rzeszutek Wilk
2016-01-27 16:15 ` Boris Ostrovsky
2016-01-27 16:15 ` [Xen-devel] " Boris Ostrovsky
2016-01-27 18:48 ` Luis R. Rodriguez
2016-01-27 18:48 ` [Xen-devel] " Luis R. Rodriguez
2016-01-27 19:00 ` Luis R. Rodriguez
2016-01-27 19:00 ` [Xen-devel] " Luis R. Rodriguez
2016-01-27 23:58 ` Boris Ostrovsky
2016-01-27 23:58 ` Boris Ostrovsky
2016-01-27 15:17 ` Boris Ostrovsky
2016-01-27 15:06 ` Boris Ostrovsky
2016-01-27 16:14 ` [Xen-devel] " Borislav Petkov
2016-01-27 16:14 ` Borislav Petkov
2016-01-27 14:50 ` David Vrabel
2016-01-27 2:16 ` Luis R. Rodriguez
2016-01-25 22:55 ` Boris Ostrovsky
2016-01-25 15:08 ` [Xen-devel] " Boris Ostrovsky
2016-01-25 15:08 ` Boris Ostrovsky
2016-01-25 16:08 ` Boris Ostrovsky
2016-01-25 21:12 ` Luis R. Rodriguez
2016-01-25 21:12 ` Luis R. Rodriguez
2016-01-25 21:21 ` H. Peter Anvin
2016-01-25 21:21 ` H. Peter Anvin
2016-01-25 22:28 ` Boris Ostrovsky
2016-01-26 18:34 ` Luis R. Rodriguez
2016-01-26 18:46 ` Andy Lutomirski
2016-01-26 19:00 ` Boris Ostrovsky
2016-01-26 19:00 ` Boris Ostrovsky
2016-01-26 19:14 ` [Xen-devel] " Luis R. Rodriguez
2016-01-26 19:14 ` Luis R. Rodriguez
2016-01-26 18:46 ` Andy Lutomirski
2016-01-26 18:34 ` Luis R. Rodriguez
2016-01-25 22:28 ` Boris Ostrovsky
2016-01-25 16:08 ` Boris Ostrovsky
2016-01-22 21:35 ` [PATCH v1 05/12] xen/hvmlite: Allow HVMlite guests delay initializing grant table Boris Ostrovsky
2016-01-22 21:35 ` Boris Ostrovsky
2016-01-22 21:35 ` [PATCH v1 06/12] xen/hvmlite: Initialize PCI Boris Ostrovsky
2016-01-22 21:35 ` Boris Ostrovsky
2016-01-25 10:21 ` Roger Pau Monné
2016-01-25 10:21 ` Roger Pau Monné
2016-01-22 21:35 ` [PATCH v1 07/12] xen/hvmlite: Prepare cpu_initialize_context() routine for HVMlite SMP Boris Ostrovsky
2016-01-22 21:35 ` Boris Ostrovsky
2016-01-22 21:35 ` [PATCH v1 08/12] xen/hvmlite: Initialize context for secondary VCPUs Boris Ostrovsky
2016-01-22 21:35 ` Boris Ostrovsky
2016-01-22 21:35 ` [PATCH v1 09/12] xen/hvmlite: Extend APIC operations for HVMlite guests Boris Ostrovsky
2016-01-22 21:35 ` Boris Ostrovsky
2016-01-22 21:35 ` [PATCH v1 10/12] xen/hvmlite: Use x86's default timer init " Boris Ostrovsky
2016-01-22 21:35 ` Boris Ostrovsky
2016-01-22 21:35 ` [PATCH v1 11/12] xen/hvmlite: Boot secondary CPUs Boris Ostrovsky
2016-01-22 21:35 ` Boris Ostrovsky
2016-01-22 21:35 ` [PATCH v1 12/12] xen/hvmlite: Enable CPU on-/offlining Boris Ostrovsky
2016-01-22 21:35 ` Boris Ostrovsky
2016-01-25 10:51 ` [PATCH v1 00/12] HVMlite domU support David Vrabel
2016-01-25 15:25 ` Boris Ostrovsky
2016-01-25 15:25 ` Boris Ostrovsky
2016-01-25 10:51 ` David Vrabel
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