From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: [PATCH V2 for-4.5] EFI: Always use EFI command line Date: Mon, 27 Oct 2014 21:15:10 -0400 Message-ID: <20141028011510.GA3221@laptop.dumpdata.com> References: <1414194069-24690-1-git-send-email-roy.franz@linaro.org> <1414227980.3584.15.camel@citrix.com> <544E32CE02000078000425ED@mail.emea.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Roy Franz , daniel.kiper@oracle.com Cc: Ian Campbell , tim , xen-devel , Stefano Stabellini , Jan Beulich , Fu Wei List-Id: xen-devel@lists.xenproject.org On Mon, Oct 27, 2014 at 03:29:18PM -0700, Roy Franz wrote: > On Mon, Oct 27, 2014 at 3:55 AM, Jan Beulich wrote: > >>>> On 25.10.14 at 21:18, wrote: > >> Jan - do you know how this command line handling in GRUB for x86 is > >> handled? I would think that x86 > >> would have the same issue with the command line. > > > > I guess the question isn't really relevant on x86 since we don't try to > > boot the same image two ways. > > I think this is related to wanting to be able to boot both and EFI executable > and a Linux Image using GRUB. Whether these are the same file or not > doesn't affect how the command lines are different. > > > > > And anyway, only when booting from UEFI (without GrUB involved) > > does anything prior to an eventual -- matter. With GrUB it shouldn't > > (and hence the separator is then also pointless and should neither > > get inserted nor looked for), as these options only control the EFI > > application behavior of the binary. At least that's how it was > > intended to be originally. > > > > Jan > > > So I guess on x86 GRUB is not used to boot the EFI version of Xen? My > understanding > is that for arm64 servers all the distros want to use GRUB to boot, as > that is primarily how > things work now, even though UEFI provides boot menu support directly. > So for arm64 we want > to support booting EFI both directly and using GRUB. While there is > no need now to control the > behavior of the EFI application portion of Xen when booting via GRUB I > think this would be useful to > support. CC-ing Daniel as that is what he has been working on. > > Roy > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel