From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Chen, Tiejun" <tiejun.chen@intel.com>
Subject: Re: [v7][RFC][PATCH 06/13] hvmloader/ram: check if
 guest memory is out of reserved device memory maps
Date: Wed, 19 Nov 2014 09:26:05 +0800
Message-ID: <546BF1AD.4010801@intel.com>
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>> So without lookuping devices[i], how can we call func() for each sbdf as
>> you mentioned?
>
> You've got both rmrr and bdf in the body of for_each_rmrr_device().
> After all - as I said - you just open-coded it.
>

Yeah, so change this again,

int intel_iommu_get_reserved_device_memory(iommu_grdm_t *func, void *ctxt)
{
     struct acpi_rmrr_unit *rmrr;
     int rc = 0;
     unsigned int i;
     u16 bdf;

     for_each_rmrr_device ( rmrr, bdf, i )
     {
         rc = func(PFN_DOWN(rmrr->base_address),
                            PFN_UP(rmrr->end_address) -
                             PFN_DOWN(rmrr->base_address),
                            PCI_SBDF(rmrr->segment, bdf),
                           ctxt);
         /* Hit this entry so just go next. */
         if ( rc == 1 )
             i = rmrr->scope.devices_cnt;
         else if ( rc < 0 )
             return rc;
     }

     return rc;
}

Thanks
Tiejun