On Wed, Mar 25, 2015 at 10:37:46 -0600, Eric Blake wrote: > On 03/24/2015 07:20 AM, Jiri Denemark wrote: > > Because of the microcode update to Haswell/Broadwell CPUs, existing > > domains using these CPUs may fail to start even though they used to run > > just fine. To help users solve this issue we try to suggest switching to > > -noTSX variant of the CPU model: > > > > virsh # start cd > > error: Failed to start domain cd > > error: unsupported configuration: guest and host CPU are not > > compatible: Host CPU does not provide required features: rtm, hle; > > try using 'Haswell-noTSX' CPU model > > Definitely worth this hint, as a lot of people are being bitten by it > according to bugzilla traffic. > > > > > Signed-off-by: Jiri Denemark <jdenemar@xxxxxxxxxx> > > --- > > > > This patch depends on the previous patch which introduces the new > > *-noTSX models. > > > > src/qemu/qemu_command.c | 38 +++++++++++++++++++++++++++++++++----- > > 1 file changed, 33 insertions(+), 5 deletions(-) > > ACK. Thanks, I pushed this and the previous patch. Jirka -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list