Re: [Xen-devel] [PATCH RFC 2/2] AMD IOMMU: allow command line overrides for broken IVRS tables

[Sander Eikelenboom <linux@xxxxxxxxxxxxxx>]

Tuesday, August 27, 2013, 5:59:28 PM, you wrote:

>>>> On 27.08.13 at 16:15, Sander Eikelenboom <linux@xxxxxxxxxxxxxx> wrote:
>> Where as your implementation seems to only walk the list present from bios 
>> and override a specific entry when it's mapping them in parse_ivhd_special ?

> No, the code change to parse_ivrs_table() should be setting up
> necessary information.

Well i just checked, and in parse_ivhd_device_special() doing a:

printk(XENLOG_ERR "is apic 0x6 override parsed ? %d ",  test_bit(0x6, 
ioapic_cmdline ));

returns 1 ... so the parsing part seems to be OK.

but parse_ivhd_device_special() isn't called for ioapic 0x6, because there is 
no entry for it in the bios provided tables in my case.
and since that seems to be what is iterated ..

--
Sander


> Jan




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