On Wed, Nov 20, 2019 at 01:49:11PM -0300, Eduardo Habkost wrote:
> One of the mitigation methods for TAA[1] is to disable TSX
> support on the host system. Linux added a mechanism to disable
> TSX globally through the kernel command line, and many Linux
> distributions now default to tsx=off. Thi
On 20/11/19 19:42, Eduardo Habkost wrote:
> The plan is to set default_cpu_version=CPU_VERSION_LATEST on
> pc-*-5.0 (or, more likely, 5.1). But this will happen only after
> libvirt starts resolving CPU model versions. See the
> "Runnability guarantee of CPU models" section at
> qemu-deprecated.t
On Wed, Nov 20, 2019 at 06:40:06PM +0100, Paolo Bonzini wrote:
> On 20/11/19 17:49, Eduardo Habkost wrote:
> > One of the mitigation methods for TAA[1] is to disable TSX
> > support on the host system. Linux added a mechanism to disable
> > TSX globally through the kernel command line, and many Li
On 20/11/19 17:49, Eduardo Habkost wrote:
> One of the mitigation methods for TAA[1] is to disable TSX
> support on the host system. Linux added a mechanism to disable
> TSX globally through the kernel command line, and many Linux
> distributions now default to tsx=off. This makes existing CPU
>
One of the mitigation methods for TAA[1] is to disable TSX
support on the host system. Linux added a mechanism to disable
TSX globally through the kernel command line, and many Linux
distributions now default to tsx=off. This makes existing CPU
models that have HLE and RTM enabled not usable anym
