Groups > linux.kernel > #1320157

Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest

From	Boris Ostrovsky <boris.ostrovsky@oracle.com>
Newsgroups	linux.kernel
Subject	Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest
Date	2016-01-28 01:00 +0100
Message-ID	<qVIae-2Yj-5@gated-at.bofh.it> (permalink)
References	(9 earlier) <qVA30-5qa-13@gated-at.bofh.it> <qVAZ4-6ax-27@gated-at.bofh.it> <qVAZ4-6ax-25@gated-at.bofh.it> <qVDkf-7RP-51@gated-at.bofh.it> <qVDDC-8gU-77@gated-at.bofh.it>
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On 01/27/2016 02:00 PM, Luis R. Rodriguez wrote:
> On Wed, Jan 27, 2016 at 10:48 AM, Luis R. Rodriguez <mcgrof@kernel.org> wrote:
>> Worth mentioning here also is hpa's clarification on when subarch type
>> PC (0) should be used: [it should be used if the hardware is]
>> "enumerable using standard PC mechanisms (PCI, ACPI) and doesn't need
>> a special boot flow" -- does that fit HVMLite's description so far? If
>> so then The Xen subarch may need to be redefined as well to be clear
>> what it means. I don't think we need to be precise but at the very
>> least cover grounds to enable the definitions to meet its actual use
>> to not confuse users.
> Another thing to consider for HVMlite is that if the 0 subarch (PC) is
> used in light of my linker table work and x86's use of it with the
> subarch and supported subarch bitmask, is that it would also mean
> HVMLite would run all routines currently pegged as needing PC type
> (the current KVM and bare metal path) and it would mean not running
> anything only pegged with Xen subarch type (but note that today Xen
> doesn't even set the subarch type). If there is nothing in common
> between PV and HVMlite (no x86 init calls to share), and if HVMLite
> *can* call *alllllllll* PC init calls, then by all means this is fine,

Yes, that's the idea. HVMlite jumps to startup_32|64 from the stub and 
runs from there with subarch 0.

-boris

> and if we just need to distinguish stuff between PC types that's fine,
> it may still be possible to further extend hypervisor_type to the x86
> init calls I'm adding as another supported_hyper_types to ensure even
> though a subarch is being used, that we also check the supported
> hypervisor type as well.
>
>   Luis

Thread

[PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-01-22 22:40 +0100
  Re: [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest "Luis R. Rodriguez" <mcgrof@suse.com> - 2016-01-23 00:40 +0100
    Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Andrew Cooper <andrew.cooper3@citrix.com> - 2016-01-23 01:40 +0100
      Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest "Luis R. Rodriguez" <mcgrof@suse.com> - 2016-01-23 01:50 +0100
      Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest "Luis R. Rodriguez" <mcgrof@suse.com> - 2016-01-23 02:00 +0100
        Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Andrew Cooper <andrew.cooper3@citrix.com> - 2016-01-23 15:50 +0100
          Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest "H. Peter Anvin" <hpa@zytor.com> - 2016-01-23 17:10 +0100
            Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> - 2016-01-23 17:20 +0100
              Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest "H. Peter Anvin" <hpa@zytor.com> - 2016-01-23 19:30 +0100
              Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Roger Pau Monné <royger@FreeBSD.org> - 2016-01-25 11:40 +0100
          Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest "Luis R. Rodriguez" <mcgrof@suse.com> - 2016-01-25 23:20 +0100
            Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-01-26 00:00 +0100
              Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest "Luis R. Rodriguez" <mcgrof@suse.com> - 2016-01-26 21:40 +0100
                Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-01-26 23:00 +0100
                Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest "Luis R. Rodriguez" <mcgrof@suse.com> - 2016-01-27 01:10 +0100
                Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest "Luis R. Rodriguez" <mcgrof@suse.com> - 2016-01-27 03:20 +0100
                Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest David Vrabel <david.vrabel@citrix.com> - 2016-01-27 16:00 +0100
                Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-01-27 16:10 +0100
                Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest David Vrabel <david.vrabel@citrix.com> - 2016-01-27 16:10 +0100
                Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-01-27 16:20 +0100
                Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-01-27 17:20 +0100
                Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-01-27 19:50 +0100
                Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest "Luis R. Rodriguez" <mcgrof@kernel.org> - 2016-01-27 20:10 +0100
                Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-01-28 01:00 +0100
                Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Borislav Petkov <bp@suse.de> - 2016-01-27 17:20 +0100
          Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> - 2016-01-26 17:20 +0100
      Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-01-25 16:10 +0100
    Re: [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-01-25 17:10 +0100
      Re: [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest "Luis R. Rodriguez" <mcgrof@suse.com> - 2016-01-25 22:20 +0100
        Re: [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest "H. Peter Anvin" <hpa@zytor.com> - 2016-01-25 22:30 +0100
          Re: [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-01-25 23:30 +0100
            Re: [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest "Luis R. Rodriguez" <mcgrof@suse.com> - 2016-01-26 19:40 +0100
              Re: [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Andy Lutomirski <luto@amacapital.net> - 2016-01-26 19:50 +0100
                Re: [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-01-26 20:10 +0100
                Re: [Xen-devel] [PATCH v1 04/12] xen/hvmlite: Bootstrap HVMlite guest "Luis R. Rodriguez" <mcgrof@suse.com> - 2016-01-26 20:20 +0100

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