diff options
Diffstat (limited to 'drivers/xen/balloon.c')
| -rw-r--r-- | drivers/xen/balloon.c | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index db107fa50ca1..ab609255a0f3 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -41,6 +41,7 @@ #include <linux/cpu.h> #include <linux/kernel.h> #include <linux/sched.h> +#include <linux/cred.h> #include <linux/errno.h> #include <linux/mm.h> #include <linux/bootmem.h> @@ -708,6 +709,7 @@ void free_xenballooned_pages(int nr_pages, struct page **pages) } EXPORT_SYMBOL(free_xenballooned_pages); +#ifdef CONFIG_XEN_PV static void __init balloon_add_region(unsigned long start_pfn, unsigned long pages) { @@ -731,19 +733,22 @@ static void __init balloon_add_region(unsigned long start_pfn, balloon_stats.total_pages += extra_pfn_end - start_pfn; } +#endif static int __init balloon_init(void) { - int i; - if (!xen_domain()) return -ENODEV; pr_info("Initialising balloon driver\n"); +#ifdef CONFIG_XEN_PV balloon_stats.current_pages = xen_pv_domain() ? min(xen_start_info->nr_pages - xen_released_pages, max_pfn) : get_num_physpages(); +#else + balloon_stats.current_pages = get_num_physpages(); +#endif balloon_stats.target_pages = balloon_stats.current_pages; balloon_stats.balloon_low = 0; balloon_stats.balloon_high = 0; @@ -760,14 +765,23 @@ static int __init balloon_init(void) register_sysctl_table(xen_root); #endif - /* - * Initialize the balloon with pages from the extra memory - * regions (see arch/x86/xen/setup.c). - */ - for (i = 0; i < XEN_EXTRA_MEM_MAX_REGIONS; i++) - if (xen_extra_mem[i].n_pfns) - balloon_add_region(xen_extra_mem[i].start_pfn, - xen_extra_mem[i].n_pfns); +#ifdef CONFIG_XEN_PV + { + int i; + + /* + * Initialize the balloon with pages from the extra memory + * regions (see arch/x86/xen/setup.c). + */ + for (i = 0; i < XEN_EXTRA_MEM_MAX_REGIONS; i++) + if (xen_extra_mem[i].n_pfns) + balloon_add_region(xen_extra_mem[i].start_pfn, + xen_extra_mem[i].n_pfns); + } +#endif + + /* Init the xen-balloon driver. */ + xen_balloon_init(); return 0; } |