From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Date: Fri, 27 Mar 2015 13:40:44 -0400 From: Kyle McMartin Subject: Re: [RFC v2 0/5] arm64: kvm: reset hyp context for kexec Message-ID: <20150327174044.GL12400@redacted.bos.redhat.com> References: <1427358326-3708-1-git-send-email-takahiro.akashi@linaro.org> <20150327153131.GK12400@redacted.bos.redhat.com> <55157920.3050003@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <55157920.3050003@arm.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: Marc Zyngier Cc: Mark Rutland , "linaro-kernel@lists.linaro.org" , "christoffer.dall@linaro.org" , "geoff@infradead.org" , Catalin Marinas , Will Deacon , "linux-kernel@vger.kernel.org" , AKASHI Takahiro , "broonie@kernel.org" , "david.griego@linaro.org" , "kexec@lists.infradead.org" , "linux-arm-kernel@lists.infradead.org" , "freddy77@gmail.com" On Fri, Mar 27, 2015 at 03:37:04PM +0000, Marc Zyngier wrote: > > [ 236.260863] Kernel panic - not syncing: HYP panic: > > [ 236.260863] PS:600003c9 PC:000003ffffff0830 ESR:0000000096000006 > > It would be interesting if you could find out what you have at offset > 0x830 of hyp-init.o (the stack trace is for EL1, and is not going to > help much). > Given the alignment, i'm going to assume i'm looking at the right thing: 0000000000000820 <__kvm_hyp_reset>: 820: d51c2000 msr ttbr0_el2, x0 824: d5033fdf isb 828: d50c871f tlbi alle2 82c: d5033f9f dsb sy 830: 10000060 adr x0, 83c <__kvm_hyp_reset+0x1c> 834: b3403c01 bfxil x1, x0, #0, #16 838: d61f0020 br x1 83c: d53c1000 mrs x0, sctlr_el2 but it seems fairly implausible to be trapping on ADR x0, 1f... --Kyle _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec From mboxrd@z Thu Jan 1 00:00:00 1970 From: kmcmarti@redhat.com (Kyle McMartin) Date: Fri, 27 Mar 2015 13:40:44 -0400 Subject: [RFC v2 0/5] arm64: kvm: reset hyp context for kexec In-Reply-To: <55157920.3050003@arm.com> References: <1427358326-3708-1-git-send-email-takahiro.akashi@linaro.org> <20150327153131.GK12400@redacted.bos.redhat.com> <55157920.3050003@arm.com> Message-ID: <20150327174044.GL12400@redacted.bos.redhat.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, Mar 27, 2015 at 03:37:04PM +0000, Marc Zyngier wrote: > > [ 236.260863] Kernel panic - not syncing: HYP panic: > > [ 236.260863] PS:600003c9 PC:000003ffffff0830 ESR:0000000096000006 > > It would be interesting if you could find out what you have at offset > 0x830 of hyp-init.o (the stack trace is for EL1, and is not going to > help much). > Given the alignment, i'm going to assume i'm looking at the right thing: 0000000000000820 <__kvm_hyp_reset>: 820: d51c2000 msr ttbr0_el2, x0 824: d5033fdf isb 828: d50c871f tlbi alle2 82c: d5033f9f dsb sy 830: 10000060 adr x0, 83c <__kvm_hyp_reset+0x1c> 834: b3403c01 bfxil x1, x0, #0, #16 838: d61f0020 br x1 83c: d53c1000 mrs x0, sctlr_el2 but it seems fairly implausible to be trapping on ADR x0, 1f... --Kyle From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753012AbbC0Rkt (ORCPT ); Fri, 27 Mar 2015 13:40:49 -0400 Received: from mx1.redhat.com ([209.132.183.28]:49421 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750819AbbC0Rks (ORCPT ); Fri, 27 Mar 2015 13:40:48 -0400 Date: Fri, 27 Mar 2015 13:40:44 -0400 From: Kyle McMartin To: Marc Zyngier Cc: AKASHI Takahiro , Catalin Marinas , Will Deacon , Mark Rutland , "linux-arm-kernel@lists.infradead.org" , "linaro-kernel@lists.linaro.org" , "geoff@infradead.org" , "kexec@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "broonie@kernel.org" , "david.griego@linaro.org" , "christoffer.dall@linaro.org" , "freddy77@gmail.com" Subject: Re: [RFC v2 0/5] arm64: kvm: reset hyp context for kexec Message-ID: <20150327174044.GL12400@redacted.bos.redhat.com> References: <1427358326-3708-1-git-send-email-takahiro.akashi@linaro.org> <20150327153131.GK12400@redacted.bos.redhat.com> <55157920.3050003@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <55157920.3050003@arm.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 27, 2015 at 03:37:04PM +0000, Marc Zyngier wrote: > > [ 236.260863] Kernel panic - not syncing: HYP panic: > > [ 236.260863] PS:600003c9 PC:000003ffffff0830 ESR:0000000096000006 > > It would be interesting if you could find out what you have at offset > 0x830 of hyp-init.o (the stack trace is for EL1, and is not going to > help much). > Given the alignment, i'm going to assume i'm looking at the right thing: 0000000000000820 <__kvm_hyp_reset>: 820: d51c2000 msr ttbr0_el2, x0 824: d5033fdf isb 828: d50c871f tlbi alle2 82c: d5033f9f dsb sy 830: 10000060 adr x0, 83c <__kvm_hyp_reset+0x1c> 834: b3403c01 bfxil x1, x0, #0, #16 838: d61f0020 br x1 83c: d53c1000 mrs x0, sctlr_el2 but it seems fairly implausible to be trapping on ADR x0, 1f... --Kyle