* [PATCH] xen: report hypervisor version
@ 2008-07-15 20:42 Jeremy Fitzhardinge
2008-07-18 11:50 ` Ingo Molnar
0 siblings, 1 reply; 2+ messages in thread
From: Jeremy Fitzhardinge @ 2008-07-15 20:42 UTC (permalink / raw)
To: Ingo Molnar; +Cc: Linux Kernel Mailing List, the arch/x86 maintainers
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>
---
arch/x86/xen/enlighten.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
===================================================================
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -168,10 +168,14 @@ 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)" : "");
}
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] xen: report hypervisor version
2008-07-15 20:42 [PATCH] xen: report hypervisor version Jeremy Fitzhardinge
@ 2008-07-18 11:50 ` Ingo Molnar
0 siblings, 0 replies; 2+ messages in thread
From: Ingo Molnar @ 2008-07-18 11:50 UTC (permalink / raw)
To: Jeremy Fitzhardinge; +Cc: Linux Kernel Mailing List, the arch/x86 maintainers
* Jeremy Fitzhardinge <jeremy@goop.org> wrote:
> 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.
applied to tip/x86/xen, thanks Jeremy.
Ingo
^ permalink raw reply [flat|nested] 2+ messages in thread
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