[PATCH 0/8] Improved fault handling for AMD-IOMMU (AMD-Vi)

From: Joerg Roedel
Date: Fri Sep 04 2009 - 05:46:26 EST


this series of patches implements improved fault handling in the AMD-IOMMU
(AMD-Vi) driver. The debug output is more verbose for some errors. With these
patches the driver also tries to recover from IOMMU command handling errors
instead of just do a panic.



arch/x86/include/asm/amd_iommu_types.h | 6 ++
arch/x86/kernel/amd_iommu.c | 109 ++++++++++++++++++++++++++------
arch/x86/kernel/amd_iommu_init.c | 20 +++++--
3 files changed, 111 insertions(+), 24 deletions(-)


Joerg Roedel (8):
x86/amd-iommu: Dump fault entry on DTE error
x86/amd-iommu: Dump illegal command on ILLEGAL_COMMAND_ERROR
x86/amd-iommu: Introduce function for iommu-local domain flush
x86/amd-iommu: Add function to flush all DTEs on one IOMMU
x86/amd-iommu: Add reset function for command buffers
x86/amd-iommu: Reset command buffer on ILLEGAL_COMMAND_ERROR
x86/amd-iommu: Panic if IOMMU command buffer reset fails
x86/amd-iommu: Reset command buffer if wait loop fails

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