From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Kiszka Subject: Re: [kvmarm] [RFC PATCH 0/3] KVM: ARM: Get rid of hardcoded VGIC addresses Date: Tue, 23 Oct 2012 13:08:51 +0200 Message-ID: <50867AC3.2000003@siemens.com> References: <1350173065-35350-1-git-send-email-c.dall@virtualopensystems.com> <507F172D.2030802@suse.de> <20121017221022.GA4333@bloggs.ozlabs.ibm.com> <1350518331.4678.114.camel@pasglop> <508675FC.7090901@siemens.com> <508678BE.4040508@siemens.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: Christoffer Dall , Benjamin Herrenschmidt , Paul Mackerras , Alexander Graf , "kvmarm@lists.cs.columbia.edu" , "kvm@vger.kernel.org" , kvm-ppc To: Peter Maydell Return-path: In-Reply-To: Sender: kvm-ppc-owner@vger.kernel.org List-Id: kvm.vger.kernel.org On 2012-10-23 13:04, Peter Maydell wrote: > On 23 October 2012 12:00, Jan Kiszka wrote: >> BTW, I guess we will regret that one-reg ABI one day and have to >> introduce a multi-reg version again for hot-standby, i.e. continuous >> state migration. I know we also do this for c86 MSRs - that interface >> has the same limitation. > > The multi-reg ABI idea has been floated, it would be easy enough to add. > We just don't want to tie up getting ARM KVM support in with arguments > over yet another ABI -- ONE_REG is sufficient for our current > purposes. Good that the number of IOCTLs we can encode is still large. ;) Jan -- Siemens AG, Corporate Technology, CT RTC ITP SDP-DE Corporate Competence Center Embedded Linux