[PATCH v2 2/6] bhyve: add bhyveDomainDefNeedsISAController helper

[Roman Bogorodskiy <bogorodskiy@xxxxxxxxx>]

Add a bhyveDomainDefNeedsISAController() helper function
which by domain configuration determines whether LPC controller is
required or not.

Signed-off-by: Roman Bogorodskiy <bogorodskiy@xxxxxxxxx>
---
 src/bhyve/bhyve_command.c |  5 +----
 src/bhyve/bhyve_domain.c  | 10 ++++++++++
 src/bhyve/bhyve_domain.h  |  2 ++
 3 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/src/bhyve/bhyve_command.c b/src/bhyve/bhyve_command.c
index 1f215dac08..f49dc77118 100644
--- a/src/bhyve/bhyve_command.c
+++ b/src/bhyve/bhyve_command.c
@@ -460,7 +460,6 @@ virBhyveProcessBuildBhyveCmd(virConnectPtr conn,
      *            vm0
      */
     size_t i;
-    bool add_lpc = false;
     int nusbcontrollers = 0;
     unsigned int nvcpus = virDomainDefGetVcpus(def);
 
@@ -549,7 +548,6 @@ virBhyveProcessBuildBhyveCmd(virConnectPtr conn,
         if ((bhyveDriverGetCaps(conn) & BHYVE_CAP_LPC_BOOTROM)) {
             virCommandAddArg(cmd, "-l");
             virCommandAddArgFormat(cmd, "bootrom,%s", def->os.loader->path);
-            add_lpc = true;
         } else {
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                            _("Installed bhyve binary does not support "
@@ -613,7 +611,6 @@ virBhyveProcessBuildBhyveCmd(virConnectPtr conn,
             if (bhyveBuildGraphicsArgStr(def, def->graphics[0], def->videos[0],
                                          conn, cmd, dryRun) < 0)
                 goto error;
-            add_lpc = true;
         } else {
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                            _("Multiple graphics devices are not supported"));
@@ -621,7 +618,7 @@ virBhyveProcessBuildBhyveCmd(virConnectPtr conn,
         }
     }
 
-    if (add_lpc || def->nserials)
+    if (bhyveDomainDefNeedsISAController(def))
         bhyveBuildLPCArgStr(def, cmd);
 
     if (bhyveBuildConsoleArgStr(def, cmd) < 0)
diff --git a/src/bhyve/bhyve_domain.c b/src/bhyve/bhyve_domain.c
index 79cf103d28..e476ef7e7d 100644
--- a/src/bhyve/bhyve_domain.c
+++ b/src/bhyve/bhyve_domain.c
@@ -61,6 +61,16 @@ virDomainXMLPrivateDataCallbacks virBhyveDriverPrivateDataCallbacks = {
     .free = bhyveDomainObjPrivateFree,
 };
 
+bool
+bhyveDomainDefNeedsISAController(virDomainDefPtr def)
+{
+    if ((def->os.bootloader == NULL && def->os.loader) ||
+        (def->nconsoles || def->nserials) || (def->ngraphics && def->nvideos))
+        return true;
+    else
+        return false;
+}
+
 static int
 bhyveDomainDefPostParse(virDomainDefPtr def,
                         virCapsPtr caps ATTRIBUTE_UNUSED,
diff --git a/src/bhyve/bhyve_domain.h b/src/bhyve/bhyve_domain.h
index 5f94038e89..03a2b369d9 100644
--- a/src/bhyve/bhyve_domain.h
+++ b/src/bhyve/bhyve_domain.h
@@ -41,4 +41,6 @@ extern virDomainXMLPrivateDataCallbacks virBhyveDriverPrivateDataCallbacks;
 extern virDomainDefParserConfig virBhyveDriverDomainDefParserConfig;
 extern virDomainXMLNamespace virBhyveDriverDomainXMLNamespace;
 
+bool bhyveDomainDefNeedsISAController(virDomainDefPtr def);
+
 #endif /* LIBVIRT_BHYVE_DOMAIN_H */
-- 
2.20.1