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Re: [PATCH v2 17/17] xen/arm: Add linux,pci-domain property for hwdom if not available.
- To: Stefano Stabellini <sstabellini@xxxxxxxxxx>
- From: Rahul Singh <Rahul.Singh@xxxxxxx>
- Date: Thu, 23 Sep 2021 15:21:43 +0000
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- Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Bertrand Marquis <Bertrand.Marquis@xxxxxxx>, Andre Przywara <Andre.Przywara@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
- Delivery-date: Thu, 23 Sep 2021 15:22:05 +0000
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- Thread-topic: [PATCH v2 17/17] xen/arm: Add linux,pci-domain property for hwdom if not available.
Hi Stefano,
> On 23 Sep 2021, at 3:52 am, Stefano Stabellini <sstabellini@xxxxxxxxxx> wrote:
>
> On Wed, 22 Sep 2021, Rahul Singh wrote:
>> If the property is not present in the device tree node for host bridge,
>> XEN while creating the dtb for hwdom will create this property and
>> assigns the already allocated segment to the host bridge
>> so that XEN and linux will have the same segment for the host bridges.
>>
>> Signed-off-by: Rahul Singh <rahul.singh@xxxxxxx>
>> ---
>> Change in v2:
>> - Add linux,pci-domain only when pci-passthrough command line option is
>> enabeld
>> ---
>> xen/arch/arm/domain_build.c | 16 ++++++++++++++++
>> xen/arch/arm/pci/pci-host-common.c | 21 +++++++++++++++++++++
>> xen/include/asm-arm/pci.h | 9 +++++++++
>> 3 files changed, 46 insertions(+)
>>
>> diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
>> index 5eb83b12a1..83ab0d52cc 100644
>> --- a/xen/arch/arm/domain_build.c
>> +++ b/xen/arch/arm/domain_build.c
>> @@ -743,6 +743,22 @@ static int __init write_properties(struct domain *d,
>> struct kernel_info *kinfo,
>> return res;
>> }
>>
>> + if ( pci_passthrough_enabled && dt_device_type_is_equal(node, "pci") )
>
> Please use the accessor function is_pci_passthrough_enabled
Ack.
Regards,
Rahul
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