From: Jan Beulich <jbeulich@suse.com>
Date: Tue, 29 Oct 2019 13:35:08 +0000 (+0100)
Subject: AMD/IOMMU: process softirqs while dumping IRTs
X-Git-Tag: archive/raspbian/4.11.3+24-g14b62ab3e5-1+rpi1^2~55^2~81
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=d4fe232a0f5502c7e6c607a188f388a77e2d5552;p=xen.git

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@suse.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Brian Woods <brian.woods@amd.com>
master commit: df2030c34cc9161dd9e35c0e8c55057e101ac81a
master date: 2019-07-22 12:03:46 +0200
---

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;
 }