Re: [Qemu-ppc] [Qemu-devel] [PULL 00/66] ppc-for-2.8 queue 20160906

[Thomas Huth]

On 06.09.2016 16:04, Peter Maydell wrote:
> On 6 September 2016 at 04:39, David Gibson <address@hidden> wrote:
>> The following changes since commit e87d397e5ef66276ccc49b829527d605ca07d0ad:
>>
>>   Open 2.8 development tree (2016-09-05 11:38:54 +0100)
>>
>> are available in the git repository at:
>>
>>   git://github.com/dgibson/qemu.git tags/ppc-for-2.8-20160906
>>
>> for you to fetch changes up to 2ccbe3e29adb7c016bc5525d38d2a6e938c481af:
>>
>>   tests: Check serial output of firmware boot of some machines (2016-09-06 
>> 10:28:17 +1000)
>>
>> ----------------------------------------------------------------
>> ppc patch queue for 2016-Sep-6
>>
>> This is my first pull request for the newly opened qemu-2.8 tree.  It
>> contains a heap of things that were too late for 2.7 and have been
>> queued for a while.  In particular:
>>     * A number of preliminary patches for the powernv machine type
>>         * A substantial cleanup of exception handling which will be
>>           necessary to support running a TCG with hypervisor
>>           facilities
>>     * A start on support for POWER9
>>         * Some TCG implementations for new POWER9 instructions
>>         * Some TCG and related cleanups in preparation for POWER9
>>     * Some assorted TCG optimizations
>>     * An implementation of the H_CHANGE_LOGICAL_LAN_MAC hypercall
>>       which allows the MAC address to be changed on the PAPR virtual
>>       NIC.
>>     * Add some extra test cases for several machines (this isn't
>>       strictly in the ppc code, but is most value to ppc)
>>
>> ----------------------------------------------------------------
> 
> Hi. This fails 'make check' on ppc64be:
[...]
> TEST: tests/prom-env-test... (pid=14611)
>   /ppc64/prom-env/mac99:                                               **
> ERROR:/home/pm215/qemu/tests/prom-env-test.c:41:check_guest_memory:
> assertion failed (signature == MAGIC): (0x00000000 == 0xcafec0de)
> FAIL

D'oh! I'll have a look...

> I also see warnings on non-KVM hosts during 'make check' which seem
> to be produced by this new test:
> 
> TEST: tests/boot-serial-test... (pid=2836)
>   /i386/boot-serial/isapc:
> warning: TCG doesn't support requested feature: CPUID.01H:EDX.vme [bit
> 1]

That happens because the test is running QEMU with the isapc machine. I
also get that warning message if I simply run the following on the
command line:

$ qemu-system-x86_64 -M isapc
warning: TCG doesn't support requested feature: CPUID.01H:EDX.vme [bit 1]

So the warning is likely there since quite a while already, just nobody
is running with -M isapc nowadays anymore, so nobody noticed this ...
Does anybody have got a clue how to fix that warning?

 Thomas