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| author | Chris Wright <chrisw@redhat.com> | 2009-06-25 18:52:05 -0700 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2009-06-26 11:26:27 +0100 |
| commit | 7e25a2422987a37729706b18583d177966919d2a (patch) | |
| tree | dd7ec2e5912b81d73998efa5ab29089ffc50eef1 /drivers/pci/intel-iommu.c | |
| parent | 28d0325ce6e0a52f53d8af687e6427fee59004d3 (diff) | |
| download | linux-stable-7e25a2422987a37729706b18583d177966919d2a.tar.gz linux-stable-7e25a2422987a37729706b18583d177966919d2a.tar.bz2 linux-stable-7e25a2422987a37729706b18583d177966919d2a.zip | |
intel-iommu: fix Identity Mapping to be arch independent
Drop the e820 scanning and use existing function for finding valid
RAM regions to add to 1:1 mapping.
Signed-off-by: Chris Wright <chrisw@redhat.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/pci/intel-iommu.c')
| -rw-r--r-- | drivers/pci/intel-iommu.c | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index e53eacd75c8d..420afa887283 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -39,7 +39,6 @@ #include <linux/sysdev.h> #include <asm/cacheflush.h> #include <asm/iommu.h> -#include <asm/e820.h> #include "pci.h" #define ROOT_SIZE VTD_PAGE_SIZE @@ -1908,7 +1907,6 @@ static inline int iommu_prepare_rmrr_dev(struct dmar_rmrr_unit *rmrr, rmrr->end_address + 1); } -#ifdef CONFIG_DMAR_GFX_WA struct iommu_prepare_data { struct pci_dev *pdev; int ret; @@ -1943,6 +1941,7 @@ static int __init iommu_prepare_with_active_regions(struct pci_dev *pdev) return data.ret; } +#ifdef CONFIG_DMAR_GFX_WA static void __init iommu_prepare_gfx_mapping(void) { struct pci_dev *pdev = NULL; @@ -2081,7 +2080,6 @@ static int domain_add_dev_info(struct dmar_domain *domain, static int iommu_prepare_static_identity_mapping(void) { - int i; struct pci_dev *pdev = NULL; int ret; @@ -2091,17 +2089,10 @@ static int iommu_prepare_static_identity_mapping(void) printk(KERN_INFO "IOMMU: Setting identity map:\n"); for_each_pci_dev(pdev) { - for (i = 0; i < e820.nr_map; i++) { - struct e820entry *ei = &e820.map[i]; - - if (ei->type == E820_RAM) { - ret = iommu_prepare_identity_map(pdev, - ei->addr, ei->addr + ei->size); - if (ret) { - printk(KERN_INFO "1:1 mapping to one domain failed.\n"); - return -EFAULT; - } - } + ret = iommu_prepare_with_active_regions(pdev); + if (ret) { + printk(KERN_INFO "1:1 mapping to one domain failed.\n"); + return -EFAULT; } ret = domain_add_dev_info(si_domain, pdev); if (ret) |