From 2d4b19613c462e876ee1327d600f5cbbb998c540 Mon Sep 17 00:00:00 2001
Message-Id: <2d4b19613c462e876ee1327d600f5cbbb998c540@dist-git>
From: John Ferlan <jferlan@redhat.com>
Date: Mon, 17 Dec 2018 20:42:30 -0500
Subject: [PATCH] RHEL: qemu: Add ability to set sgio values for hostdev
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https://bugzilla.redhat.com/show_bug.cgi?id=1582424

RHEL-only

Add necessary checks in order to allow setting sgio values for a scsi
host device

Signed-off-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
(cherry picked from commit f2cf0ae7bc371c75f6c0e79192711f2b1d201b10)
Reviewed-by: Ján Tomko <jtomko@redhat.com>
---
 src/qemu/qemu_conf.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index a4f545ef92..3ea9784854 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -1633,6 +1633,7 @@ qemuSetUnprivSGIO(virDomainDeviceDefPtr dev)
     virDomainDiskDefPtr disk = NULL;
     virDomainHostdevDefPtr hostdev = NULL;
     char *sysfs_path = NULL;
+    char *hostdev_path = NULL;
     const char *path = NULL;
     int val = -1;
     int ret = -1;
@@ -1654,14 +1655,10 @@ qemuSetUnprivSGIO(virDomainDeviceDefPtr dev)
         if (!qemuIsSharedHostdev(hostdev))
             return 0;
 
-        if (hostdev->source.subsys.u.scsi.sgio) {
-            virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
-                           _("'sgio' is not supported for SCSI "
-                             "generic device yet "));
+        if (!(hostdev_path = qemuGetHostdevPath(hostdev)))
             goto cleanup;
-        }
 
-        return 0;
+        path = hostdev_path;
     } else {
         return 0;
     }
@@ -1670,7 +1667,11 @@ qemuSetUnprivSGIO(virDomainDeviceDefPtr dev)
         goto cleanup;
 
     /* By default, filter the SG_IO commands, i.e. set unpriv_sgio to 0.  */
-    val = (disk->sgio == VIR_DOMAIN_DEVICE_SGIO_UNFILTERED);
+    if (dev->type == VIR_DOMAIN_DEVICE_DISK)
+        val = (disk->sgio == VIR_DOMAIN_DEVICE_SGIO_UNFILTERED);
+    else
+        val = (hostdev->source.subsys.u.scsi.sgio ==
+               VIR_DOMAIN_DEVICE_SGIO_UNFILTERED);
 
     /* Do not do anything if unpriv_sgio is not supported by the kernel and the
      * whitelist is enabled.  But if requesting unfiltered access, always call
@@ -1683,6 +1684,7 @@ qemuSetUnprivSGIO(virDomainDeviceDefPtr dev)
     ret = 0;
 
  cleanup:
+    VIR_FREE(hostdev_path);
     VIR_FREE(sysfs_path);
     return ret;
 }
-- 
2.20.1