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Date: Mon, 30 Mar 2015 10:39:53 +0900 From: AKASHI Takahiro <takahiro.akashi@...aro.org> To: Kyle McMartin <kmcmarti@...hat.com>, Marc Zyngier <marc.zyngier@....com> CC: Catalin Marinas <Catalin.Marinas@....com>, Will Deacon <Will.Deacon@....com>, Mark Rutland <Mark.Rutland@....com>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, "linaro-kernel@...ts.linaro.org" <linaro-kernel@...ts.linaro.org>, "geoff@...radead.org" <geoff@...radead.org>, "kexec@...ts.infradead.org" <kexec@...ts.infradead.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "broonie@...nel.org" <broonie@...nel.org>, "david.griego@...aro.org" <david.griego@...aro.org>, "christoffer.dall@...aro.org" <christoffer.dall@...aro.org>, "freddy77@...il.com" <freddy77@...il.com> Subject: Re: [RFC v2 0/5] arm64: kvm: reset hyp context for kexec On 03/28/2015 02:40 AM, Kyle McMartin wrote: > 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... I've never seen this panic on fast model... ESR shows that - Exception class: Data abort taken without a change in Exception level - Data fault status code: Translation fault at EL2 and FAR seems not to be a proper address. -Takahiro AKASHI > --Kyle > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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