From 7c392cbe984d904f7c89a6a75b2ac245254e8da5 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Thu, 26 Nov 2009 11:13:32 +0100 Subject: 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 --- arch/x86/include/asm/amd_iommu_types.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/x86/include') diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h index 434e90ed89c..93953d1922c 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 */ -- cgit v1.2.3