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| author | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2010-12-02 20:55:05 +0300 |
|---|---|---|
| committer | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2011-02-25 19:43:05 +0300 |
| commit | 53d5522cad291a0e93a385e0594b6aea6b54a071 (patch) | |
| tree | 33e4a7fd5404bbaf40b5249bd88cb882eb2e3f16 /drivers/xen/balloon.c | |
| parent | c80a420995e721099906607b07c09a24543b31d9 (diff) | |
| download | linux-53d5522cad291a0e93a385e0594b6aea6b54a071.tar.xz | |
xen: make the ballon driver work for hvm domains
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Diffstat (limited to 'drivers/xen/balloon.c')
| -rw-r--r-- | drivers/xen/balloon.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 43f9f02c7db0..9294f25dcb2c 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -232,7 +232,7 @@ static int increase_reservation(unsigned long nr_pages) set_phys_to_machine(pfn, frame_list[i]); /* Link back into the page tables if not highmem. */ - if (pfn < max_low_pfn) { + if (!xen_hvm_domain() && pfn < max_low_pfn) { int ret; ret = HYPERVISOR_update_va_mapping( (unsigned long)__va(pfn << PAGE_SHIFT), @@ -280,7 +280,7 @@ static int decrease_reservation(unsigned long nr_pages) scrub_page(page); - if (!PageHighMem(page)) { + if (!xen_hvm_domain() && !PageHighMem(page)) { ret = HYPERVISOR_update_va_mapping( (unsigned long)__va(pfn << PAGE_SHIFT), __pte_ma(0), 0); @@ -392,15 +392,19 @@ static struct notifier_block xenstore_notifier; static int __init balloon_init(void) { - unsigned long pfn, extra_pfn_end; + unsigned long pfn, nr_pages, extra_pfn_end; struct page *page; - if (!xen_pv_domain()) + if (!xen_domain()) return -ENODEV; pr_info("xen_balloon: Initialising balloon driver.\n"); - balloon_stats.current_pages = min(xen_start_info->nr_pages, max_pfn); + if (xen_pv_domain()) + nr_pages = xen_start_info->nr_pages; + else + nr_pages = max_pfn; + balloon_stats.current_pages = min(nr_pages, max_pfn); balloon_stats.target_pages = balloon_stats.current_pages; balloon_stats.balloon_low = 0; balloon_stats.balloon_high = 0; |