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authorJoerg Roedel <joerg.roedel@amd.com>2009-05-20 13:53:57 +0200
committerJoerg Roedel <joerg.roedel@amd.com>2009-05-28 17:50:56 +0200
commit9c72041f719e2864d4208a89341c36b316dbf893 (patch)
treec60faf8467b7d788bac33d49c4af17d554db1209
parentfefda117ddb324b872312f1f061230e627c9f5ee (diff)
amd-iommu: add dump for iommus described in ivrs table
Add information about IOMMU devices described in the IVRS ACPI table to the kernel log if amd_iommu_dump was specified on the kernel command line. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
-rw-r--r--arch/x86/kernel/amd_iommu_init.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 57fb7a7cb6e..28165902ae2 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -748,6 +748,15 @@ static int __init init_iommu_all(struct acpi_table_header *table)
h = (struct ivhd_header *)p;
switch (*p) {
case ACPI_IVHD_TYPE:
+
+ DUMP_printk("IOMMU: device: %02x:%02x.%01x cap: %04x "
+ "seg: %d flags: %01x info %04x\n",
+ PCI_BUS(h->devid), PCI_SLOT(h->devid),
+ PCI_FUNC(h->devid), h->cap_ptr,
+ h->pci_seg, h->flags, h->info);
+ DUMP_printk(" mmio-addr: %016llx\n",
+ h->mmio_phys);
+
iommu = kzalloc(sizeof(struct amd_iommu), GFP_KERNEL);
if (iommu == NULL)
return -ENOMEM;