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From: Peter Maydell <peter.maydell@linaro.org>
To: alvise rigo <a.rigo@virtualopensystems.com>
Cc: "tech@virtualopensystems.com" <tech@virtualopensystems.com>,
	QEMU Developers <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [RFC 3/4] Add l2ctlr cp register to CPUARMState
Date: Wed, 26 Feb 2014 10:07:18 +0000	[thread overview]
Message-ID: <CAFEAcA8ZxFW0g8FQ7SJy0o=CWyG64sHA3qTDO03AtS_XWArmaA@mail.gmail.com> (raw)
In-Reply-To: <CAH47eN21FrHpxz5xYH5oQ1XCus_K86fvmqTs3eMP6ReH63axKg@mail.gmail.com>

On 26 February 2014 09:17, alvise rigo <a.rigo@virtualopensystems.com> wrote:
> This was a polite way to alter the value of the register in order to not
> fail the
> migration when KVM migrates a value different from the TCG one.
> KVM in particular does not set the irq bit while TCG does.

You mean the "interrupt controller" bit 23? That seems like a bug
in the KVM emulation of this register which should be fixed in KVM.
Alternatively if it's a documentation error and the actual hardware
A15 doesn't set this bit (ie if it's not set when you're running outside
KVM) then we should fix the TCG emulation not to set the bit.

thanks
-- PMM

  reply	other threads:[~2014-02-26 10:07 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-25 16:52 [Qemu-devel] [RFC 0/4] target-arm: KVM to TCG migration Alvise Rigo
2014-02-25 16:52 ` [Qemu-devel] [RFC 1/4] Fix issue affecting get_int32_le() in vmstate.c Alvise Rigo
2014-02-25 18:11   ` Eduardo Habkost
2014-02-25 18:16   ` Peter Maydell
2014-02-25 18:52   ` Juan Quintela
2014-02-25 18:55     ` Peter Maydell
2014-02-25 16:52 ` [Qemu-devel] [RFC 2/4] Added flag in ARMCPU to track last execution mode Alvise Rigo
2014-02-25 18:19   ` Peter Maydell
2014-02-26  9:16     ` alvise rigo
2014-02-26  9:56       ` Peter Maydell
2014-02-25 16:52 ` [Qemu-devel] [RFC 3/4] Add l2ctlr cp register to CPUARMState Alvise Rigo
2014-02-25 18:22   ` Peter Maydell
2014-02-26  9:17     ` alvise rigo
2014-02-26 10:07       ` Peter Maydell [this message]
2014-02-25 16:52 ` [Qemu-devel] [RFC 4/4] Relevant changes to enable KVM to TCG migration Alvise Rigo
2014-02-25 18:25   ` Peter Maydell
2014-02-26 10:02     ` alvise rigo
2014-02-26 10:04       ` Peter Maydell
2014-02-26 10:27         ` alvise rigo
2014-02-26 10:33           ` Peter Maydell
2014-03-03 21:39       ` Peter Maydell
2014-03-05 15:01         ` alvise rigo
2014-03-05 17:11           ` Peter Maydell

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