diff options
| author | Joerg Roedel <joerg.roedel@amd.com> | 2008-12-02 17:46:25 +0100 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-01-03 14:11:54 +0100 |
| commit | 9fdb19d64c0247f23343b51fc85f438f8e7a2f3c (patch) | |
| tree | 4950b0193aa74489da7150cf5cacccb1c5125823 /arch/x86/include/asm | |
| parent | 43f4960983a309568a6c4375f081e63fb2ff24a3 (diff) | |
AMD IOMMU: add protection domain flags
Imapct: add a new struct member to 'struct protection_domain'
When using protection domains for dma_ops and KVM its better to know for
which subsystem it was allocated. Add a flags member to struct
protection domain for that purpose.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/amd_iommu_types.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h index ac302a2fa339..4862a5be899c 100644 --- a/arch/x86/include/asm/amd_iommu_types.h +++ b/arch/x86/include/asm/amd_iommu_types.h @@ -190,16 +190,20 @@ /* FIXME: move this macro to <linux/pci.h> */ #define PCI_BUS(x) (((x) >> 8) & 0xff) +/* Protection domain flags */ +#define PD_DMA_OPS_MASK (1UL << 0) /* domain used for dma_ops */ + /* * This structure contains generic data for IOMMU protection domains * independent of their use. */ struct protection_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) */ - u64 *pt_root; /* page table root pointer */ - void *priv; /* private data */ + 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) */ + u64 *pt_root; /* page table root pointer */ + unsigned long flags; /* flags to find out type of domain */ + void *priv; /* private data */ }; /* |