forked from mirrors/linux
0383ad4374
xen_biovec_phys_mergeable() only needs .bv_page of the 2nd bio bvec for checking if the two bvecs can be merged, so pass page to xen_biovec_phys_mergeable() directly. No function change. Cc: ris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Juergen Gross <jgross@suse.com> Cc: xen-devel@lists.xenproject.org Cc: Omar Sandoval <osandov@fb.com> Cc: Christoph Hellwig <hch@lst.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _XEN_XEN_H
|
|
#define _XEN_XEN_H
|
|
|
|
enum xen_domain_type {
|
|
XEN_NATIVE, /* running on bare hardware */
|
|
XEN_PV_DOMAIN, /* running in a PV domain */
|
|
XEN_HVM_DOMAIN, /* running in a Xen hvm domain */
|
|
};
|
|
|
|
#ifdef CONFIG_XEN
|
|
extern enum xen_domain_type xen_domain_type;
|
|
#else
|
|
#define xen_domain_type XEN_NATIVE
|
|
#endif
|
|
|
|
#ifdef CONFIG_XEN_PVH
|
|
extern bool xen_pvh;
|
|
#else
|
|
#define xen_pvh 0
|
|
#endif
|
|
|
|
#define xen_domain() (xen_domain_type != XEN_NATIVE)
|
|
#define xen_pv_domain() (xen_domain_type == XEN_PV_DOMAIN)
|
|
#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;
|
|
|
|
#include <xen/interface/hvm/start_info.h>
|
|
extern struct hvm_start_info pvh_start_info;
|
|
|
|
#ifdef CONFIG_XEN_DOM0
|
|
#include <xen/interface/xen.h>
|
|
#include <asm/xen/hypervisor.h>
|
|
|
|
#define xen_initial_domain() (xen_domain() && \
|
|
(xen_start_flags & SIF_INITDOMAIN))
|
|
#else /* !CONFIG_XEN_DOM0 */
|
|
#define xen_initial_domain() (0)
|
|
#endif /* CONFIG_XEN_DOM0 */
|
|
|
|
struct bio_vec;
|
|
struct page;
|
|
|
|
bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
|
|
const struct page *page);
|
|
|
|
#if defined(CONFIG_MEMORY_HOTPLUG) && defined(CONFIG_XEN_BALLOON)
|
|
extern u64 xen_saved_max_mem_size;
|
|
#endif
|
|
|
|
#endif /* _XEN_XEN_H */
|