[Xen-changelog] [xen staging] x86/VT-d: Drop unhelpful information in diagnostics

[patchbot@xxxxxxx]

commit b7fab13d4d5730d937b5b1aa9ad109488277dfb4
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Fri Oct 11 15:56:51 2019 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Wed Oct 23 16:43:48 2019 +0100

    x86/VT-d: Drop unhelpful information in diagnostics
    
    The virtual address of the base of the IOMMU's regsters is not useful for
    diagnostic purposes, and is quite voluminous.  The PCI coordinates is by far
    the most useful piece of identifying information.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
    Release-acked-by: Juergen Gross <jgross@xxxxxxxx>
---
 xen/drivers/passthrough/vtd/iommu.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/xen/drivers/passthrough/vtd/iommu.c 
b/xen/drivers/passthrough/vtd/iommu.c
index f08eec070d..0522ecd3bc 100644
--- a/xen/drivers/passthrough/vtd/iommu.c
+++ b/xen/drivers/passthrough/vtd/iommu.c
@@ -842,26 +842,26 @@ static int iommu_page_fault_do_one(struct vtd_iommu 
*iommu, int type,
     case DMA_REMAP:
         printk(XENLOG_G_WARNING VTDPREFIX
                "DMAR:[%s] Request device [%04x:%02x:%02x.%u] "
-               "fault addr %"PRIx64", iommu reg = %p\n",
+               "fault addr %"PRIx64"\n",
                (type ? "DMA Read" : "DMA Write"),
                seg, PCI_BUS(source_id), PCI_SLOT(source_id),
-               PCI_FUNC(source_id), addr, iommu->reg);
+               PCI_FUNC(source_id), addr);
         kind = "DMAR";
         break;
     case INTR_REMAP:
         printk(XENLOG_G_WARNING VTDPREFIX
                "INTR-REMAP: Request device [%04x:%02x:%02x.%u] "
-               "fault index %"PRIx64", iommu reg = %p\n",
+               "fault index %"PRIx64"\n",
                seg, PCI_BUS(source_id), PCI_SLOT(source_id),
-               PCI_FUNC(source_id), addr >> 48, iommu->reg);
+               PCI_FUNC(source_id), addr >> 48);
         kind = "INTR-REMAP";
         break;
     default:
         printk(XENLOG_G_WARNING VTDPREFIX
                "UNKNOWN: Request device [%04x:%02x:%02x.%u] "
-               "fault addr %"PRIx64", iommu reg = %p\n",
+               "fault addr %"PRIx64"\n",
                seg, PCI_BUS(source_id), PCI_SLOT(source_id),
-               PCI_FUNC(source_id), addr, iommu->reg);
+               PCI_FUNC(source_id), addr);
         kind = "UNKNOWN";
         break;
     }
--
generated by git-patchbot for /home/xen/git/xen.git#staging

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