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From: Eric Blake <eblake@redhat.com>
To: Stefan Hajnoczi <stefanha@gmail.com>,
	Aurelien Jarno <aurelien@aurel32.net>
Cc: "open list:All patches CC here" <qemu-devel@nongnu.org>,
	Stefan Hajnoczi <stefanha@redhat.com>
Subject: Re: [Qemu-devel] [PULL 2/5] target/sh4: fix reset when using a kernel and an initrd
Date: Tue, 30 May 2017 10:02:54 -0500	[thread overview]
Message-ID: <dc4c904d-c794-fd9f-66ec-141861cf0a33@redhat.com> (raw)
In-Reply-To: <20170530101746.GA25884@stefanha-x1.localdomain>

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On 05/30/2017 05:17 AM, Stefan Hajnoczi wrote:
> On Mon, May 29, 2017 at 09:30:13PM +0200, Aurelien Jarno wrote:
>> When a masked exception happens, the SH4 CPU generates a non-masked
>> reset exception, which then jumps to the reset vector at address
>> 0xA0000000. While this is emulated correctly in QEMU, this does not
>> work when using a kernel and initrd as this address then contain an
>> illegal instruction (and there is no guarantee the kernel and initrd
>> haven't been overwritten).
>>

>> +            qemu_system_reset_request();
>> +            return;
> 
> The qemu_system_reset_request() prototype is changing.  There is a
> conflict with another merged pull request.  Please rebase onto
> https://github.com/stefanha/qemu.git staging.
> 
> target/sh4/helper.c:102:39: error: too few arguments to function call, single argument 'reason' was not specified
>             qemu_system_reset_request();
>             ~~~~~~~~~~~~~~~~~~~~~~~~~ ^

You'll probably want SHUTDOWN_CAUSE_GUEST_RESET as the reason, based on
the changes made to other target/ files.

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org


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  reply	other threads:[~2017-05-30 15:03 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20170529193016.6888-1-aurelien@aurel32.net>
2017-05-29 19:30 ` [Qemu-devel] [PULL 1/5] target/sh4: log unauthorized accesses using qemu_log_mask Aurelien Jarno
2017-05-30  9:52   ` Stefan Hajnoczi
2017-05-30 11:12     ` Aurelien Jarno
2017-05-30 10:18   ` Stefan Hajnoczi
2017-05-30 11:12     ` Aurelien Jarno
2017-05-29 19:30 ` [Qemu-devel] [PULL 2/5] target/sh4: fix reset when using a kernel and an initrd Aurelien Jarno
2017-05-30 10:17   ` Stefan Hajnoczi
2017-05-30 15:02     ` Eric Blake [this message]
2017-05-30 16:21       ` Aurelien Jarno
2017-05-29 19:30 ` [Qemu-devel] [PULL 3/5] target/sh4: introduce DELAY_SLOT_MASK Aurelien Jarno
2017-05-29 19:30 ` [Qemu-devel] [PULL 4/5] target/sh4: ignore interrupts in a delay slot Aurelien Jarno
2017-05-29 19:30 ` [Qemu-devel] [PULL 5/5] target/sh4: fix RTE instruction " Aurelien Jarno

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