Re: [Qemu-block] [Qemu-devel] [PATCH v6 12/29] libqos: Track QTestState with QPCIBus

[Eric Blake]

On 09/01/2017 02:20 PM, Philippe Mathieu-Daudé wrote:
> Hi Eric,
> 
> On 09/01/2017 03:03 PM, Eric Blake wrote:
>> When initializing a QPCIBus, track which QTestState the bus is
>> associated with (so that a later patch can then explicitly use
>> that test state for all communication on the bus, rather than
>> blindly relying on global_qtest).  Update the initialization
>> functions to take another parameter, and update all callers to
>> pass in state (for now, most callers get away with passing the
>> current global_qtest as the current state, although this required
>> fixing the order of initialization to ensure qtest_start() is
>> called before qpci_init*() in rtl8139-test, and provided an
>> opportunity to pass in the allocator in e1000e-test).
>>

>> +++ b/tests/libqos/pci-pc.c
>> @@ -115,11 +115,14 @@ static void qpci_pc_config_writel(QPCIBus *bus,
>> int devfn, uint8_t offset, uint3
>>       outl(0xcfc, value);
>>   }
>>
>> -QPCIBus *qpci_init_pc(QGuestAllocator *alloc)
>> +QPCIBus *qpci_init_pc(QTestState *qts, QGuestAllocator *alloc)
>>   {
>>       QPCIBusPC *ret;
>>
>> +    assert(qts);
>> +
>>       ret = g_malloc(sizeof(*ret));
> 
> I'd rather use g_malloc0() here (safer!)

Pre-existing, but yes, I can touch it while in the area.

> 
>> +    ret->bus.qts = qts;
>>
>>       ret->bus.pio_readb = qpci_pc_pio_readb;
>>       ret->bus.pio_readw = qpci_pc_pio_readw;
> 
> or init qts field in same order than struct:

Okay.

> 
> Either ways:
> Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
> 

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

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