File f7c40b5c71-qemu-tsc-tolerance-interval-closed.patch of Package libvirt.22291
commit f7c40b5c716fea5d2a4179569146307ebebc76ba
Author: Jiri Denemark <jdenemar@redhat.com>
Date: Tue Jan 5 23:53:25 2021 +0100
qemu: The TSC tolerance interval should be closed
The kernel refuses to set guest TSC frequency less than a minimum
frequency or greater than maximum frequency (both computed based on the
host TSC frequency). When writing the libvirt code with a reversed logic
(return success when the requested frequency falls within the tolerance
interval) I forgot to include the boundaries.
Fixes: d8e5b4560006590668d4669f54a46b08ec14c1a2
https://bugzilla.redhat.com/show_bug.cgi?id=1839095
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Index: libvirt-6.0.0/src/qemu/qemu_process.c
===================================================================
--- libvirt-6.0.0.orig/src/qemu/qemu_process.c
+++ libvirt-6.0.0/src/qemu/qemu_process.c
@@ -5295,7 +5295,7 @@ qemuProcessStartValidateTSC(virQEMUDrive
tsc->frequency, virTristateBoolTypeToString(tsc->scaling),
tolerance);
- if (freq > minFreq && freq < maxFreq) {
+ if (freq >= minFreq && freq <= maxFreq) {
VIR_DEBUG("Requested TSC frequency is within tolerance interval");
return 0;
}