linux-kernel - [PATCH v2 04/11] xen/hvmlite: Allow HVMlite guests delay initializing grant table

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Message-Id: <1454341137-14110-5-git-send-email-boris.ostrovsky@oracle.com>
Date:	Mon,  1 Feb 2016 10:38:50 -0500
From:	Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:	david.vrabel@...rix.com, konrad.wilk@...cle.com
Cc:	xen-devel@...ts.xenproject.org, linux-kernel@...r.kernel.org,
	roger.pau@...rix.com, mcgrof@...e.com,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>
Subject: [PATCH v2 04/11] xen/hvmlite: Allow HVMlite guests delay initializing grant table

.. just like we currently do for PVH guests

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>
---
 arch/x86/xen/grant-table.c |    4 ++--
 drivers/xen/grant-table.c  |    8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/x86/xen/grant-table.c b/arch/x86/xen/grant-table.c
index e079500..40ad9c2 100644
--- a/arch/x86/xen/grant-table.c
+++ b/arch/x86/xen/grant-table.c
@@ -110,7 +110,7 @@ int arch_gnttab_init(unsigned long nr_shared)
 	return arch_gnttab_valloc(&gnttab_shared_vm_area, nr_shared);
 }
 
-#ifdef CONFIG_XEN_PVH
+#ifdef CONFIG_XEN_PVHVM
 #include <xen/balloon.h>
 #include <xen/events.h>
 #include <linux/slab.h>
@@ -164,7 +164,7 @@ static int __init xlated_setup_gnttab_pages(void)
 
 static int __init xen_pvh_gnttab_setup(void)
 {
-	if (!xen_pvh_domain())
+	if (!xen_pvh_domain() && !xen_hvmlite)
 		return -ENODEV;
 
 	return xlated_setup_gnttab_pages();
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index c49f79e..9a239d5 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -1147,13 +1147,13 @@ EXPORT_SYMBOL_GPL(gnttab_init);
 
 static int __gnttab_init(void)
 {
+	if (!xen_domain())
+		return -ENODEV;
+
 	/* Delay grant-table initialization in the PV on HVM case */
-	if (xen_hvm_domain())
+	if (xen_hvm_domain() && !xen_hvmlite)
 		return 0;
 
-	if (!xen_pv_domain())
-		return -ENODEV;
-
 	return gnttab_init();
 }
 /* Starts after core_initcall so that xen_pvh_gnttab_setup can be called
-- 
1.7.1