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@redhat.com> ---
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