linux-kernel - [PATCH v1 06/12] xen/hvmlite: Initialize PCI

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Message-Id: <1453498558-6028-7-git-send-email-boris.ostrovsky@oracle.com>
Date:	Fri, 22 Jan 2016 16:35:52 -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 v1 06/12] xen/hvmlite: Initialize PCI

HVMlite guests need PCI frontend and always have PV devices

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>
---
 arch/x86/pci/xen.c                 |    2 +-
 arch/x86/xen/platform-pci-unplug.c |    4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index ff31ab4..d847f7d 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -405,7 +405,7 @@ static void xen_teardown_msi_irq(unsigned int irq)
 
 int __init pci_xen_init(void)
 {
-	if (!xen_pv_domain() || xen_initial_domain())
+	if ((!xen_pv_domain() && !xen_hvmlite) || xen_initial_domain())
 		return -ENODEV;
 
 	printk(KERN_INFO "PCI: setting up Xen PCI frontend stub\n");
diff --git a/arch/x86/xen/platform-pci-unplug.c b/arch/x86/xen/platform-pci-unplug.c
index 9586ff3..802ec90 100644
--- a/arch/x86/xen/platform-pci-unplug.c
+++ b/arch/x86/xen/platform-pci-unplug.c
@@ -73,8 +73,8 @@ bool xen_has_pv_devices(void)
 	if (!xen_domain())
 		return false;
 
-	/* PV domains always have them. */
-	if (xen_pv_domain())
+	/* PV and HVMlite domains always have them. */
+	if (xen_pv_domain() || xen_hvmlite)
 		return true;
 
 	/* And user has xen_platform_pci=0 set in guest config as
-- 
1.7.1