diff options
| -rw-r--r-- | arch/x86/xen/setup.c | 7 | ||||
| -rw-r--r-- | drivers/xen/balloon.c | 4 | ||||
| -rw-r--r-- | include/xen/page.h | 2 |
3 files changed, 11 insertions, 2 deletions
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 46d6d21dbdb..c983717c018 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -39,6 +39,9 @@ extern void xen_syscall32_target(void); /* Amount of extra memory space we add to the e820 ranges */ phys_addr_t xen_extra_mem_start, xen_extra_mem_size; +/* Number of pages released from the initial allocation. */ +unsigned long xen_released_pages; + /* * The maximum amount of extra memory compared to the base size. The * main scaling factor is the size of struct page. At extreme ratios @@ -313,7 +316,9 @@ char * __init xen_memory_setup(void) extra_pages = 0; } - extra_pages += xen_return_unused_memory(xen_start_info->nr_pages, &e820); + xen_released_pages = xen_return_unused_memory(xen_start_info->nr_pages, + &e820); + extra_pages += xen_released_pages; /* * Clamp the amount of extra memory to a EXTRA_MEM_RATIO diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 5dfd8f8ff07..4f59fb37338 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -565,7 +565,9 @@ static int __init balloon_init(void) pr_info("xen/balloon: Initialising balloon driver.\n"); - balloon_stats.current_pages = xen_pv_domain() ? min(xen_start_info->nr_pages, max_pfn) : max_pfn; + balloon_stats.current_pages = xen_pv_domain() + ? min(xen_start_info->nr_pages - xen_released_pages, max_pfn) + : max_pfn; balloon_stats.target_pages = balloon_stats.current_pages; balloon_stats.balloon_low = 0; balloon_stats.balloon_high = 0; diff --git a/include/xen/page.h b/include/xen/page.h index 0be36b976f4..92b61f8c772 100644 --- a/include/xen/page.h +++ b/include/xen/page.h @@ -5,4 +5,6 @@ extern phys_addr_t xen_extra_mem_start, xen_extra_mem_size; +extern unsigned long xen_released_pages; + #endif /* _XEN_PAGE_H */ |