From: Juergen Gross <jgross@suse.com>
To: David Vrabel <david.vrabel@citrix.com>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: PVHVM drivers in upstream linux kernel
Date: Tue, 02 Dec 2014 12:02:06 +0100 [thread overview]
Message-ID: <547D9C2E.3040804@suse.com> (raw)
In-Reply-To: <547D9A4A.6010201@citrix.com>
On 12/02/2014 11:54 AM, David Vrabel wrote:
> On 02/12/14 09:39, Juergen Gross wrote:
>> Hi,
>>
>> looking into the upstream linux sources I realized that the PVHVM
>> drivers of XEN are only available with the pvops kernel. Is this on
>> purpose? Shouldn't the frontend drivers, xen/platform-pci.c etc. be
>> configurable without having to enable CONFIG_PARAVIRT?
>
> I suppose that would be possible but I don't think it's a useful
> configuration because you would lose PV spinlocks for example.
Having no pv spinlocks on a single vcpu HVM guest isn't so bad. Having
no pv-drivers for disks and networking is worse.
Juergen
next prev parent reply other threads:[~2014-12-02 11:02 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-02 9:39 PVHVM drivers in upstream linux kernel Juergen Gross
2014-12-02 10:54 ` David Vrabel
2014-12-02 11:02 ` Juergen Gross [this message]
2014-12-02 11:05 ` Ian Campbell
2014-12-02 11:33 ` Juergen Gross
2014-12-02 11:36 ` Ian Campbell
2014-12-02 11:39 ` Juergen Gross
2014-12-02 11:59 ` David Vrabel
2014-12-02 13:00 ` Juergen Gross
2014-12-02 14:09 ` David Vrabel
2014-12-02 14:35 ` Juergen Gross
2014-12-02 15:11 ` Konrad Rzeszutek Wilk
2014-12-02 15:13 ` Ian Campbell
2014-12-02 17:04 ` Konrad Rzeszutek Wilk
2014-12-02 15:10 ` Konrad Rzeszutek Wilk
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