Re: [Xen-devel] [Qemu-devel] [PATCH 05/10] xen_platform: do not use old_portio-style callbacks

[Andreas FÃrber <afaerber@xxxxxxx>]

Stefano,

Am 12.01.2013 17:06, schrieb Andreas FÃrber:
> Am 04.01.2013 22:29, schrieb Hervà Poussineau:
>> Signed-off-by: Hervà Poussineau <hpoussin@xxxxxxxxxxx>
>> ---
>>  hw/xen_platform.c |   21 ++++++++++-----------
>>  1 file changed, 10 insertions(+), 11 deletions(-)
>>
>> diff --git a/hw/xen_platform.c b/hw/xen_platform.c
>> index e7611bb..02e0146 100644
>> --- a/hw/xen_platform.c
>> +++ b/hw/xen_platform.c
>> @@ -279,7 +279,8 @@ static void 
>> platform_fixed_ioport_init(PCIXenPlatformState* s)
>>  
>>  /* Xen Platform PCI Device */
>>  
>> -static uint32_t xen_platform_ioport_readb(void *opaque, uint32_t addr)
>> +static uint64_t xen_platform_ioport_readb(void *opaque, hwaddr addr,
>> +                                          unsigned int size)
>>  {
>>      if (addr == 0) {
>>          return platform_fixed_ioport_readb(opaque, 0);
>> @@ -288,30 +289,28 @@ static uint32_t xen_platform_ioport_readb(void 
>> *opaque, uint32_t addr)
>>      }
>>  }
>>  
>> -static void xen_platform_ioport_writeb(void *opaque, uint32_t addr, 
>> uint32_t val)
>> +static void xen_platform_ioport_writeb(void *opaque, hwaddr addr,
>> +                                       uint64_t val, unsigned int size)
>>  {
>>      PCIXenPlatformState *s = opaque;
>>  
>>      switch (addr) {
>>      case 0: /* Platform flags */
>> -        platform_fixed_ioport_writeb(opaque, 0, val);
>> +        platform_fixed_ioport_writeb(opaque, 0, (uint32_t)val);
>>          break;
>>      case 8:
>> -        log_writeb(s, val);
>> +        log_writeb(s, (uint32_t)val);
>>          break;
>>      default:
>>          break;
>>      }
>>  }
>>  
>> -static MemoryRegionPortio xen_pci_portio[] = {
>> -    { 0, 0x100, 1, .read = xen_platform_ioport_readb, },
>> -    { 0, 0x100, 1, .write = xen_platform_ioport_writeb, },
>> -    PORTIO_END_OF_LIST()
>> -};
>> -
>>  static const MemoryRegionOps xen_pci_io_ops = {
>> -    .old_portio = xen_pci_portio,
>> +    .read  = xen_platform_ioport_readb,
>> +    .write = xen_platform_ioport_writeb,
>> +    .impl.min_access_size = 1,
>> +    .impl.max_access_size = 1,
>>  };
>>  
>>  static void platform_ioport_bar_setup(PCIXenPlatformState *d)
> 
> Thanks, applied to memory-ioport queue:
> https://github.com/afaerber/qemu-cpu/commits/memory-ioport

If you want to ack or object, now would be the time. :)
https://github.com/afaerber/qemu-cpu/commit/016861a22283da3931c4b343e6d2df0dc123b6ef

Cheers,
Andreas

> 
> Is there some kind of guidance in which cases to use .impl vs. .valid
> for the access sizes in these conversions?
> 
> Andreas

-- 
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GF: Jeff Hawn, Jennifer Guild, Felix ImendÃrffer; HRB 16746 AG NÃrnberg

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