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xen: pvhvm: allow user to request no emulated device unplug

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this allows the user to disable pvhvm and revert to emulated devices
in case of a system misconfiguration (e.g. initramfs with only
emulated drivers in it).

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>
This commit is contained in:
Ian Campbell
2010-08-23 11:59:28 +01:00
parent da5cabf80e
commit c93a4dfb31
3 changed files with 7 additions and 0 deletions
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1
include/xen/platform_pci.h
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@ -21,6 +21,7 @@
#define XEN_UNPLUG_AUX_IDE_DISKS 4
#define XEN_UNPLUG_ALL 7
#define XEN_UNPLUG_IGNORE 8
#define XEN_UNPLUG_NEVER 16
static inline int xen_must_unplug_nics(void) {
#if (defined(CONFIG_XEN_NETDEV_FRONTEND) || \