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Re: [Qemu-arm] [Qemu-devel] [PATCH] Revert "armv7m: Guard against no -ke

From: Philippe Mathieu-Daudé
Subject: Re: [Qemu-arm] [Qemu-devel] [PATCH] Revert "armv7m: Guard against no -kernel argument"
Date: Thu, 25 Apr 2019 20:07:06 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1

Hi Peter, Stefan,

On 1/4/19 4:16 PM, Peter Maydell wrote:
> On Thu, 3 Jan 2019 at 14:41, Stefan Hajnoczi <address@hidden> wrote:
>> This reverts commit 01fd41ab3fb69971c24a69ed49cde96086d81278.
>> The generic loader device (-device loader,file=kernel.bin) can be used
>> to load a kernel instead of the -kernel option.  Some boards have flash
>> memory (pflash) that is set via the -pflash or -drive options.
>> Allow starting QEMU without the -kernel option to accommodate these
>> scenarios.
>> Suggested-by: Peter Maydell <address@hidden>
>> Signed-off-by: Stefan Hajnoczi <address@hidden>

Previous to this commit (v3.1), we have:

$ qemu-system-aarch64 -M netduino2
qemu-system-aarch64: Guest image must be specified (using -kernel)

Now (v4.0) we get:

$ qemu-system-aarch64 -M netduino2
qemu: fatal: Lockup: can't escalate 3 to HardFault (current priority -1)

R00=00000000 R01=00000000 R02=00000000 R03=00000000
R04=00000000 R05=00000000 R06=00000000 R07=00000000
R08=00000000 R09=00000000 R10=00000000 R11=00000000
R12=00000000 R13=ffffffe0 R14=fffffff9 R15=00000000
XPSR=40000003 -Z-- A handler
FPSCR: 00000000
Aborted (core dumped)

This is confusing.

(same happens with emcraft-sf2, microbit, musca-*)



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