[Xen-changelog] [xen stable-4.11] AMD/IOMMU: process softirqs while dumping IRTs

[patchbot@xxxxxxx]

commit d4fe232a0f5502c7e6c607a188f388a77e2d5552
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Tue Oct 29 14:35:08 2019 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue Oct 29 14:35:08 2019 +0100

    AMD/IOMMU: process softirqs while dumping IRTs
    
    When there are sufficiently many devices listed in the ACPI tables (no
    matter if they actually exist), output may take way longer than the
    watchdog would like.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Brian Woods <brian.woods@xxxxxxx>
    master commit: df2030c34cc9161dd9e35c0e8c55057e101ac81a
    master date: 2019-07-22 12:03:46 +0200
---
 xen/drivers/passthrough/amd/iommu_intr.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/xen/drivers/passthrough/amd/iommu_intr.c 
b/xen/drivers/passthrough/amd/iommu_intr.c
index d4ff8c18f9..7daf3ec6a3 100644
--- a/xen/drivers/passthrough/amd/iommu_intr.c
+++ b/xen/drivers/passthrough/amd/iommu_intr.c
@@ -22,6 +22,7 @@
 #include <asm/hvm/svm/amd-iommu-proto.h>
 #include <asm/io_apic.h>
 #include <xen/keyhandler.h>
+#include <xen/softirq.h>
 
 #define INTREMAP_TABLE_ORDER    1
 #define INTREMAP_LENGTH 0xB
@@ -698,6 +699,8 @@ static int dump_intremap_mapping(u16 seg, struct 
ivrs_mappings *ivrs_mapping)
     dump_intremap_table(ivrs_mapping->intremap_table);
     spin_unlock_irqrestore(&(ivrs_mapping->intremap_lock), flags);
 
+    process_pending_softirqs();
+
     return 0;
 }
 
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.11

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