Re: [libvirt] [PATCH] qemu: Give hint about -noTSX CPU model

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(a)redhat.com&gt; > --- > > 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.