lkml.org 
[lkml]   [2018]   [Sep]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v2 08/12] iommu/vt-d: Pass pasid table to context mapping
From
Date
Hi,

On 09/06/2018 11:17 AM, Tian, Kevin wrote:
>> From: Lu Baolu [mailto:baolu.lu@linux.intel.com]
>> Sent: Thursday, August 30, 2018 9:35 AM
>>
>> So that the pasid related info, such as the pasid table and the
>> maximum of pasid could be used during setting up scalable mode
>> context.
>>
>> Cc: Ashok Raj <ashok.raj@intel.com>
>> Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
>> Cc: Kevin Tian <kevin.tian@intel.com>
>> Cc: Liu Yi L <yi.l.liu@intel.com>
>> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
>> Reviewed-by: Ashok Raj <ashok.raj@intel.com>
>
> Reviewed-by: Kevin Tian <kevin.tian@intel.com>
>

Thank you, Kevin.

Best regards,
Lu Baolu

>> ---
>> drivers/iommu/intel-iommu.c | 14 +++++++++++---
>> 1 file changed, 11 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
>> index c3bf2ccf094d..33642dd3d6ba 100644
>> --- a/drivers/iommu/intel-iommu.c
>> +++ b/drivers/iommu/intel-iommu.c
>> @@ -1942,6 +1942,7 @@ static void domain_exit(struct dmar_domain
>> *domain)
>>
>> static int domain_context_mapping_one(struct dmar_domain *domain,
>> struct intel_iommu *iommu,
>> + struct pasid_table *table,
>> u8 bus, u8 devfn)
>> {
>> u16 did = domain->iommu_did[iommu->seq_id];
>> @@ -2064,6 +2065,7 @@ static int domain_context_mapping_one(struct
>> dmar_domain *domain,
>> struct domain_context_mapping_data {
>> struct dmar_domain *domain;
>> struct intel_iommu *iommu;
>> + struct pasid_table *table;
>> };
>>
>> static int domain_context_mapping_cb(struct pci_dev *pdev,
>> @@ -2072,25 +2074,31 @@ static int domain_context_mapping_cb(struct
>> pci_dev *pdev,
>> struct domain_context_mapping_data *data = opaque;
>>
>> return domain_context_mapping_one(data->domain, data-
>>> iommu,
>> - PCI_BUS_NUM(alias), alias & 0xff);
>> + data->table, PCI_BUS_NUM(alias),
>> + alias & 0xff);
>> }
>>
>> static int
>> domain_context_mapping(struct dmar_domain *domain, struct device
>> *dev)
>> {
>> + struct domain_context_mapping_data data;
>> + struct pasid_table *table;
>> struct intel_iommu *iommu;
>> u8 bus, devfn;
>> - struct domain_context_mapping_data data;
>>
>> iommu = device_to_iommu(dev, &bus, &devfn);
>> if (!iommu)
>> return -ENODEV;
>>
>> + table = intel_pasid_get_table(dev);
>> +
>> if (!dev_is_pci(dev))
>> - return domain_context_mapping_one(domain, iommu, bus,
>> devfn);
>> + return domain_context_mapping_one(domain, iommu,
>> table,
>> + bus, devfn);
>>
>> data.domain = domain;
>> data.iommu = iommu;
>> + data.table = table;
>>
>> return pci_for_each_dma_alias(to_pci_dev(dev),
>> &domain_context_mapping_cb, &data);
>> --
>> 2.17.1
>
>

\
 
 \ /
  Last update: 2018-09-07 04:15    [W:0.060 / U:0.316 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site