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| author | Jingqi Liu <Jingqi.liu@intel.com> | 2023-10-16 05:28:28 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2023-10-16 09:34:51 +0200 |
| commit | e8aa45f8cc2c3afe2a3608ea7220bbdb516bef07 (patch) | |
| tree | f8384291a4871147522665b9ef4570aa5927e300 /drivers/iommu/intel/debugfs.c | |
| parent | iommu/vt-d: Remove unused function (diff) | |
| download | linux-e8aa45f8cc2c3afe2a3608ea7220bbdb516bef07.tar.xz linux-e8aa45f8cc2c3afe2a3608ea7220bbdb516bef07.zip | |
iommu/vt-d: debugfs: Dump entry pointing to huge page
For the page table entry pointing to a huge page, the data below the
level of the huge page is meaningless and does not need to be dumped.
Signed-off-by: Jingqi Liu <Jingqi.liu@intel.com>
Link: https://lore.kernel.org/r/20231013135811.73953-2-Jingqi.liu@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/intel/debugfs.c')
| -rw-r--r-- | drivers/iommu/intel/debugfs.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/iommu/intel/debugfs.c b/drivers/iommu/intel/debugfs.c index 1f925285104e..497c1561d3d2 100644 --- a/drivers/iommu/intel/debugfs.c +++ b/drivers/iommu/intel/debugfs.c @@ -311,9 +311,14 @@ static inline unsigned long level_to_directory_size(int level) static inline void dump_page_info(struct seq_file *m, unsigned long iova, u64 *path) { - seq_printf(m, "0x%013lx |\t0x%016llx\t0x%016llx\t0x%016llx\t0x%016llx\t0x%016llx\n", - iova >> VTD_PAGE_SHIFT, path[5], path[4], - path[3], path[2], path[1]); + seq_printf(m, "0x%013lx |\t0x%016llx\t0x%016llx\t0x%016llx", + iova >> VTD_PAGE_SHIFT, path[5], path[4], path[3]); + if (path[2]) { + seq_printf(m, "\t0x%016llx", path[2]); + if (path[1]) + seq_printf(m, "\t0x%016llx", path[1]); + } + seq_putc(m, '\n'); } static void pgtable_walk_level(struct seq_file *m, struct dma_pte *pde, |