diff options
| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-07-15 13:42:34 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-18 13:50:42 +0200 |
| commit | 95c7c23b06bc92f1772b9c9460845f179ba8c39e (patch) | |
| tree | 4c1f7b8a07926880746e56202274fae7ed909341 /arch | |
| parent | 5b664cb235e97afbf34db9c4d77f08ebd725335e (diff) | |
xen: report hypervisor version
Various versions of the hypervisor have differences in what ABIs and
features they support. Print some details into the boot log to help
with remote debugging.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/xen/enlighten.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index bb508456ef5..5328e46d9cf 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -167,10 +167,14 @@ void xen_vcpu_restore(void) static void __init xen_banner(void) { + unsigned version = HYPERVISOR_xen_version(XENVER_version, NULL); + struct xen_extraversion extra; + HYPERVISOR_xen_version(XENVER_extraversion, &extra); + printk(KERN_INFO "Booting paravirtualized kernel on %s\n", pv_info.name); - printk(KERN_INFO "Hypervisor signature: %s%s\n", - xen_start_info->magic, + printk(KERN_INFO "Xen version: %d.%d%s%s\n", + version >> 16, version & 0xffff, extra.extraversion, xen_feature(XENFEAT_mmu_pt_update_preserve_ad) ? " (preserve-AD)" : ""); } |