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| author | Joerg Roedel | 2009-09-03 14:25:02 +0200 |
|---|---|---|
| committer | Joerg Roedel | 2009-09-03 14:28:04 +0200 |
| commit | 945b4ac44e5700acd3d974c176c8ace34b4d2e8e (patch) | |
| tree | 328159670312d8e78e4ac7c980c2a9d9e274211d /arch/x86/kernel/amd_iommu.c | |
| parent | x86/amd-iommu: Dump fault entry on DTE error (diff) | |
| download | kernel-qcow2-linux-945b4ac44e5700acd3d974c176c8ace34b4d2e8e.tar.gz kernel-qcow2-linux-945b4ac44e5700acd3d974c176c8ace34b4d2e8e.tar.xz kernel-qcow2-linux-945b4ac44e5700acd3d974c176c8ace34b4d2e8e.zip | |
x86/amd-iommu: Dump illegal command on ILLEGAL_COMMAND_ERROR
This patch adds code to dump the command which caused an
ILLEGAL_COMMAND_ERROR raised by the IOMMU hardware.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/kernel/amd_iommu.c')
| -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 364c6de26374..e62b35f5df1b 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -147,6 +147,15 @@ static void dump_dte_entry(u16 devid) amd_iommu_dev_table[devid].data[i]); } +static void dump_command(unsigned long phys_addr) +{ + struct iommu_cmd *cmd = phys_to_virt(phys_addr); + int i; + + for (i = 0; i < 4; ++i) + pr_err("AMD-Vi: CMD[%d]: %08x\n", i, cmd->data[i]); +} + static void iommu_print_event(void *__evt) { u32 *event = __evt; @@ -186,6 +195,7 @@ static void iommu_print_event(void *__evt) break; case EVENT_TYPE_ILL_CMD: printk("ILLEGAL_COMMAND_ERROR address=0x%016llx]\n", address); + dump_command(address); break; case EVENT_TYPE_CMD_HARD_ERR: printk("COMMAND_HARDWARE_ERROR address=0x%016llx " |