libvirt/SOURCES/libvirt-RHEL-qemu-Add-check-for-unpriv-sgio-for-SCSI-generic-host-device.patch

From f562b4c83d342002291f6bd7c5776eaecbd3147f Mon Sep 17 00:00:00 2001
Message-Id: <f562b4c83d342002291f6bd7c5776eaecbd3147f@dist-git>
From: John Ferlan <jferlan@redhat.com>
Date: Mon, 17 Dec 2018 20:42:31 -0500
Subject: [PATCH] RHEL: qemu: Add check for unpriv sgio for SCSI generic host
 device
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https://bugzilla.redhat.com/show_bug.cgi?id=1582424

RHEL-only

Check if the hostdev has set the sgio filtered/unfiltered and handle
appropriately.

This restores functionality removed by upstream commit id 'ce346623'
to remove sgio support for the SCSI generic host device.

Signed-off-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
---
 src/qemu/qemu_conf.c | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index ba85fc6e22..28c334761b 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -1749,13 +1749,29 @@ qemuSharedHostdevAddRemoveInternal(virQEMUDriver *driver,
 {
     g_autofree char *dev_path = NULL;
     g_autofree char *key = NULL;
+    virDomainHostdevSubsysSCSI *scsisrc = &hostdev->source.subsys.u.scsi;
+    virDomainHostdevSubsysSCSIHost *scsihostsrc = &scsisrc->u.host;
     int ret = -1;
 
     if (!qemuIsSharedHostdev(hostdev))
         return 0;
 
-    if (!(dev_path = qemuGetHostdevPath(hostdev)) ||
-        !(key = qemuGetSharedDeviceKey(dev_path)))
+    if (!(dev_path = qemuGetHostdevPath(hostdev)))
+        return -1;
+
+    if ((ret = qemuCheckUnprivSGIO(driver->sharedDevices, dev_path,
+                                   scsisrc->sgio)) < 0) {
+        if (ret == -2) {
+            virReportError(VIR_ERR_OPERATION_INVALID,
+                           _("sgio of shared scsi host device '%s-%u-%u-%llu' "
+                             "conflicts with other active domains"),
+                           scsihostsrc->adapter, scsihostsrc->bus,
+                           scsihostsrc->target, scsihostsrc->unit);
+        }
+        return -1;
+    }
+
+    if (!(key = qemuGetSharedDeviceKey(dev_path)))
         return -1;
 
     qemuDriverLock(driver);
-- 
2.34.1