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authorEduardo Habkost <ehabkost@redhat.com>2015-09-28 17:01:24 -0300
committerStefano Stabellini <stefano.stabellini@eu.citrix.com>2015-10-19 10:16:01 +0000
commitdbb7405d8caad0814ceddd568cb49f163a847561 (patch)
tree0cb55ea7a876fe6b19c8253af30a9d34d350a626
parenta88ae0d44b6b5830b752641b2198735272f13eaf (diff)
xen-platform: Ensure xen is enabled when initializing
The xen-platform code crashes on reset if the xen backend is not initialized, because it calls xc_hvm_set_mem_type(). Ensure xen-platform won't be created without initializing the xen backend. The assert can't be triggered by the user because the device is not hotpluggable, and the only code creating it (at pc_xen_hvm_init()) already checks xen_enabled(). Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
-rw-r--r--hw/i386/xen/xen_platform.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/hw/i386/xen/xen_platform.c b/hw/i386/xen/xen_platform.c
index ee45f038b8..8682c42e46 100644
--- a/hw/i386/xen/xen_platform.c
+++ b/hw/i386/xen/xen_platform.c
@@ -387,6 +387,9 @@ static int xen_platform_initfn(PCIDevice *dev)
PCIXenPlatformState *d = XEN_PLATFORM(dev);
uint8_t *pci_conf;
+ /* Device will crash on reset if xen is not initialized */
+ assert(xen_enabled());
+
pci_conf = dev->config;
pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_IO | PCI_COMMAND_MEMORY);