mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-25 02:09:42 +00:00
![Linus Torvalds](/assets/img/avatar_default.png)
-----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAABAgAGBQJaPKq7AAoJELDendYovxMvQOEH/2iuLSDI7b5vjPuBCvFjituP floACKQl3Zp1Xk//DQLwTis02/9cIAOUGM11PmrkEq1lehpXPxIPzyfpx3wbEezd A9hP71AMojdOIUCxucAGg94kxryv9OgXT6/qggzLlpmEpo7x12dVSPV+LxfcbkqL zeTi1WEzz9jacfFI5CRvJx68tacIxvxCdKfauq2Yz2AB3BKd2xtMR7j77lycAeSw KTFaIikKnZ3Aonn/yRUhD89oOp/Kt7XJib3glsAAKgA1GMuqmJsk1yB4Wm3qkpGD bFSzf51HLl2PRyV5PxlJOfHtyTUKRj1Jf80YQgI2x9jR2LT3pBSI+NZt7Paw4Wc= =QB74 -----END PGP SIGNATURE----- Merge tag 'for-linus-4.15-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: "This contains two fixes for running under Xen: - a fix avoiding resource conflicts between adding mmio areas and memory hotplug - a fix setting NX bits in page table entries copied from Xen when running a PV guest" * tag 'for-linus-4.15-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/balloon: Mark unallocated host memory as UNUSABLE x86-64/Xen: eliminate W+X mappings
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/******************************************************************************
|
|
* Xen balloon functionality
|
|
*/
|
|
|
|
#define RETRY_UNLIMITED 0
|
|
|
|
struct balloon_stats {
|
|
/* We aim for 'current allocation' == 'target allocation'. */
|
|
unsigned long current_pages;
|
|
unsigned long target_pages;
|
|
unsigned long target_unpopulated;
|
|
/* Number of pages in high- and low-memory balloons. */
|
|
unsigned long balloon_low;
|
|
unsigned long balloon_high;
|
|
unsigned long total_pages;
|
|
unsigned long schedule_delay;
|
|
unsigned long max_schedule_delay;
|
|
unsigned long retry_count;
|
|
unsigned long max_retry_count;
|
|
};
|
|
|
|
extern struct balloon_stats balloon_stats;
|
|
|
|
void balloon_set_new_target(unsigned long target);
|
|
|
|
int alloc_xenballooned_pages(int nr_pages, struct page **pages);
|
|
void free_xenballooned_pages(int nr_pages, struct page **pages);
|
|
|
|
struct device;
|
|
#ifdef CONFIG_XEN_SELFBALLOONING
|
|
extern int register_xen_selfballooning(struct device *dev);
|
|
#else
|
|
static inline int register_xen_selfballooning(struct device *dev)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_XEN_BALLOON
|
|
void xen_balloon_init(void);
|
|
#else
|
|
static inline void xen_balloon_init(void)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG
|
|
struct resource;
|
|
void arch_xen_balloon_init(struct resource *hostmem_resource);
|
|
#endif
|