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| author |   Joerg Roedel <joerg.roedel@amd.com> | 2009-11-26 11:13:32 +0100 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-11-27 14:20:34 +0100 |
| commit | 7c392cbe984d904f7c89a6a75b2ac245254e8da5 (patch) | |
| tree | 48b5d1f73cd3814de15d32a0e82a963dd4237f9c /arch/x86/include | |
| parent | x86/amd-iommu: Add device bind reference counting (diff) | |
| download | linux-dev-7c392cbe984d904f7c89a6a75b2ac245254e8da5.tar.xz linux-dev-7c392cbe984d904f7c89a6a75b2ac245254e8da5.zip | |
x86/amd-iommu: Keep devices per domain in a list
This patch introduces a list to each protection domain which
keeps all devices associated with the domain. This can be
used later to optimize certain functions and to completly
remove the amd_iommu_pd_table.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/amd_iommu_types.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h index 434e90ed89c5..93953d1922c4 100644 --- a/arch/x86/include/asm/amd_iommu_types.h +++ b/arch/x86/include/asm/amd_iommu_types.h @@ -235,6 +235,7 @@ extern bool amd_iommu_np_cache; */ struct protection_domain { struct list_head list; /* for list of all protection domains */ + struct list_head dev_list; /* List of all devices in this domain */ spinlock_t lock; /* mostly used to lock the page table*/ u16 id; /* the domain id written to the device table */ int mode; /* paging mode (0-6 levels) */ @@ -251,6 +252,7 @@ struct protection_domain { * This struct contains device specific data for the IOMMU */ struct iommu_dev_data { + struct list_head list; /* For domain->dev_list */ struct device *alias; /* The Alias Device */ struct protection_domain *domain; /* Domain the device is bound to */ atomic_t bind; /* Domain attach reverent count */ |