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From: Christoffer Dall <cdall@linaro.org>
To: James Morse <james.morse@arm.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>, kvmarm@lists.cs.columbia.edu
Subject: Re: [PATCH 0/2] KVM: arm/arm64: Restore host physical timer access on panic
Date: Mon, 15 May 2017 10:18:40 +0200	[thread overview]
Message-ID: <20170515081840.GG9309@cbox> (raw)
In-Reply-To: <20170425170245.4294-1-james.morse@arm.com>

Hi James,

On Tue, Apr 25, 2017 at 06:02:43PM +0100, James Morse wrote:
> Hi!
> 
> On arm64, with a single CPU when I trigger hyp_panic() with the guest
> registers loaded, I get two traces:
> 
> [ 8736.164022] Kernel panic - not syncing: HYP panic:

[...]

> 
> This is because the physical timer access is still trapped to EL2, causing
> a second __guest_exit(), this time without the host context on the stack.
> 
> Once I get 32bit hyp_panic() to restore the hosts banked registers, I get the
> same:
> [  164.799341] Kernel panic - not syncing:

[...]

Thanks for these.

Reviewed-by: Christoffer Dall <cdall@linaro.org>

And applied to kvmarm/queue.

-Christoffer

      parent reply	other threads:[~2017-05-15  8:15 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-25 17:02 [PATCH 0/2] KVM: arm/arm64: Restore host physical timer access on panic James Morse
2017-04-25 17:02 ` [PATCH 1/2] KVM: arm: Restore banked registers and physical timer access on hyp_panic() James Morse
2017-05-02 15:24   ` Marc Zyngier
2017-04-25 17:02 ` [PATCH 2/2] KVM: arm64: Restore host " James Morse
2017-05-02 15:25   ` Marc Zyngier
2017-05-15  8:18 ` Christoffer Dall [this message]

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