From abd7c4c746d627309b43a6a106f1d7ba37a75cd7 Mon Sep 17 00:00:00 2001
From: Michal Privoznik <mprivozn@redhat.com>
Date: Fri, 21 Jun 2019 18:00:01 +0200
Subject: [PATCH] domain_conf: Introduce virDomainDefHasNVMeDisk

This function will return true if any of disks (or their backing
chain) for given domain contains an NVMe disk.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
ACKed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
---
 src/conf/domain_conf.c   | 14 ++++++++++++++
 src/conf/domain_conf.h   |  3 +++
 src/libvirt_private.syms |  1 +
 3 files changed, 18 insertions(+)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index f60aa7371f..e46f423b19 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -31479,6 +31479,20 @@ virDomainDefHasManagedPR(const virDomainDef *def)
 }
 
 
+bool
+virDomainDefHasNVMeDisk(const virDomainDef *def)
+{
+    size_t i;
+
+    for (i = 0; i < def->ndisks; i++) {
+        if (virStorageSourceChainHasNVMe(def->disks[i]->src))
+            return true;
+    }
+
+    return false;
+}
+
+
 bool
 virDomainDefHasVFIOHostdev(const virDomainDef *def)
 {
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 2e8f5a4790..11fafe46b3 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -3667,6 +3667,9 @@ virDomainDiskGetDetectZeroesMode(virDomainDiskDiscard discard,
 bool
 virDomainDefHasManagedPR(const virDomainDef *def);
 
+bool
+virDomainDefHasNVMeDisk(const virDomainDef *def);
+
 bool
 virDomainDefHasVFIOHostdev(const virDomainDef *def);
 
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index f2592a0782..74fd38f4d4 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -310,6 +310,7 @@ virDomainDefHasManagedPR;
 virDomainDefHasMdevHostdev;
 virDomainDefHasMemballoon;
 virDomainDefHasMemoryHotplug;
+virDomainDefHasNVMeDisk;
 virDomainDefHasUSB;
 virDomainDefHasVcpusOffline;
 virDomainDefHasVFIOHostdev;
-- 
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