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xen: share start flags between PV and PVH

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Use a global variable to store the start flags for both PV and PVH.
This allows the xen_initial_domain macro to work properly on PVH.

Note that ARM is also switched to use the new variable.

Signed-off-by: Boris Ostrovsky <[email protected]>
Signed-off-by: Roger Pau Monné <[email protected]>
Reviewed-by: Juergen Gross <[email protected]>
Signed-off-by: Juergen Gross <[email protected]>
This commit is contained in:
Roger Pau Monne 2018-06-08 10:40:38 +02:00 • committed by Juergen Gross
commit 1fe83888a2
5 changed files with 18 additions and 4 deletions
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6
include/xen/xen.h
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@ -25,12 +25,16 @@ extern bool xen_pvh;
#define xen_hvm_domain() (xen_domain_type == XEN_HVM_DOMAIN)
#define xen_pvh_domain() (xen_pvh)
#include <linux/types.h>
extern uint32_t xen_start_flags;
#ifdef CONFIG_XEN_DOM0
#include <xen/interface/xen.h>
#include <asm/xen/hypervisor.h>
#define xen_initial_domain() (xen_domain() && \
xen_start_info && xen_start_info->flags & SIF_INITDOMAIN)
(xen_start_flags & SIF_INITDOMAIN))
#else /* !CONFIG_XEN_DOM0 */
#define xen_initial_domain() (0)
#endif /* CONFIG_XEN_DOM0 */