diff options
| author | Joerg Roedel <joerg.roedel@amd.com> | 2009-09-03 14:02:10 +0200 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-09-03 14:17:08 +0200 |
| commit | e3e59876e82a5e1a07f365d5474e7b6943524725 (patch) | |
| tree | b085528765b73c3699d28652c86821fd231b0ece /arch/x86/kernel | |
| parent | 37d0892c5a94e208cf863e3b7bac014edee4346d (diff) | |
x86/amd-iommu: Dump fault entry on DTE error
This patch adds code to dump the content of the device table
entry which caused an ILLEGAL_DEV_TABLE_ENTRY error from the
IOMMU hardware.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/amd_iommu.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 6c99f503780..364c6de2637 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -138,6 +138,15 @@ static int iommu_has_npcache(struct amd_iommu *iommu) * ****************************************************************************/ +static void dump_dte_entry(u16 devid) +{ + int i; + + for (i = 0; i < 8; ++i) + pr_err("AMD-Vi: DTE[%d]: %08x\n", i, + amd_iommu_dev_table[devid].data[i]); +} + static void iommu_print_event(void *__evt) { u32 *event = __evt; @@ -155,6 +164,7 @@ static void iommu_print_event(void *__evt) "address=0x%016llx flags=0x%04x]\n", PCI_BUS(devid), PCI_SLOT(devid), PCI_FUNC(devid), address, flags); + dump_dte_entry(devid); break; case EVENT_TYPE_IO_FAULT: printk("IO_PAGE_FAULT device=%02x:%02x.%x " |