James Harper
2011-Jan-22 05:28 UTC
[Xen-devel] expects freq 1800MHz but host''s freq is 1800MHz: trap and emulate rdtsc
When I restore a DomU I get: (XEN) save.c:72:d0 Domain 510 expects freq 1800MHz but host''s freq is 1800MHz: trap and emulate rdtsc I''m using an earlier 4.0.2 rc but I can''t see any changes to save.c since then. Is this a problem? Thanks James _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Tim Deegan
2011-Jan-24 10:30 UTC
[PATCH] Re: [Xen-devel] expects freq 1800MHz but host''s freq is 1800MHz: trap and emulate rdtsc
x86/tsc: remove misleading printk on HVM restore path.
This warning no longer corresponds to what the code actually does.
Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
diff -r b02dd0b47140 xen/arch/x86/hvm/save.c
--- a/xen/arch/x86/hvm/save.c Thu Jan 20 11:13:07 2011 +0000
+++ b/xen/arch/x86/hvm/save.c Mon Jan 24 10:25:32 2011 +0000
@@ -65,12 +65,7 @@ int arch_hvm_load(struct domain *d, stru
if ( hdr->gtsc_khz )
d->arch.tsc_khz = hdr->gtsc_khz;
if ( d->arch.vtsc )
- {
hvm_set_rdtsc_exiting(d, 1);
- gdprintk(XENLOG_WARNING, "Domain %d expects freq %uMHz "
- "but host''s freq is %luMHz: trap and emulate
rdtsc\n",
- d->domain_id, hdr->gtsc_khz / 1000, cpu_khz / 1000);
- }
/* VGA state is not saved/restored, so we nobble the cache. */
d->arch.hvm_domain.stdvga.cache = 0;
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