From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH v2 26/41] arm : acpi add xen environment table Date: Fri, 29 May 2015 11:43:16 +0100 Message-ID: <55685EE4020000780007EF30@mail.emea.novell.com> References: <1431893048-5214-1-git-send-email-parth.dixit@linaro.org> <1431893048-5214-27-git-send-email-parth.dixit@linaro.org> <555CD101020000780007C65C@mail.emea.novell.com> <555CBDCB.6010600@citrix.com> <555D95AA020000780007C87E@mail.emea.novell.com> <555DB4BD.9070308@citrix.com> <555DD38A020000780007CAF5@mail.emea.novell.com> <5565CC6F020000780007E2AA@mail.emea.novell.com> <5567210C020000780007E8D3@mail.emea.novell.com> <5567249D020000780007E8FD@mail.emea.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Stefano Stabellini Cc: keir@xen.org, ian.campbell@citrix.com, andrew.cooper3@citrix.com, tim@xen.org, xen-devel@lists.xen.org, Julien Grall , Stefano.Stabellini@citrix.com, Parth Dixit , christoffer.dall@linaro.org List-Id: xen-devel@lists.xenproject.org >>> On 29.05.15 at 12:31, wrote: > On Thu, 28 May 2015, Jan Beulich wrote: >> >>> On 28.05.15 at 14:12, wrote: >> > Could you please make a concrete suggestion with table names and fields? >> >> I already pointed you at 6.0's new FADT field "Hypervisor Vendor >> Identity". > > OK, that is a decent alternative. > > We don't have a suitable hypercall to retrieve the evtchn PPI but we > could add one. Overall I still prefer the table approach, but if you > really don't want it, I can live with the hypercalls. I'm clearly not in the position to force any design decision onto the ARM side of Xen. But I continue to be of the opinion that custom tables should be a last resort approach only, which isn't warranted here (anymore). Jan