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Re: [PATCH v1 08/14] xen:arm: Implement pci access functions


  • To: Rahul Singh <rahul.singh@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
  • From: Oleksandr Andrushchenko <Oleksandr_Andrushchenko@xxxxxxxx>
  • Date: Wed, 15 Sep 2021 07:54:30 +0000
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  • Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
  • Delivery-date: Wed, 15 Sep 2021 07:54:39 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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  • Thread-topic: [PATCH v1 08/14] xen:arm: Implement pci access functions

Hi, Rahul!
>>> static void pci_config_write(pci_sbdf_t sbdf, unsigned int reg,
>>>                               unsigned int len, uint32_t val)
>>> {
>>> +    struct pci_host_bridge *bridge = pci_find_host_bridge(sbdf.seg, 
>>> sbdf.bus);
>>> +
>>> +    if ( unlikely(!bridge) )
>>> +    {
>>> +        printk(XENLOG_ERR "Unable to find bridge for "PRI_pci"\n",
>>> +                sbdf.seg, sbdf.bus, sbdf.dev, sbdf.fn);
>> same here
> Yes I am printing with “PRI_pci".

vPCI and the rest are widely using

         printk("%pp\n",  &sbdf);
So, I think if we have SBDF then it is better to use %pp instead of trying to 
unfold it manually.

 


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