2 Commits

Author	SHA1	Message	Date
Christian Ehrhardt	dd17a4eba8	cpu_map: Add more -noTSX x86 CPU models ... 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 anymore. Add new versions of all CPU models that have the HLE and RTM features enabled, that can be used when TSX is disabled in the host system. On systems disabling the features without those types defined in cpu-maps users end up without modern CPU types in the list of usable CPUs to use in the likes of virsh domcapabilities or tools higher in the stack like virt-manager. This adds: -Cascadelake-Server-noTSX -Icelake-Client-noTSX -Icelake-Server-noTSX -Skylake-Server-noTSX-IBRS -Skylake-Client-noTSX-IBRS Introduced in QEMU by commit v4.2.0-rc2-3-g9ab2237f19 (function) and commit v4.2.0-rc2-4-g02fa60d101 (names) References: [1] TAA, TSX asynchronous Abort: https://software.intel.com/security-software-guidance/insights/deep-dive-intel-transactional-synchronization-extensions-intel-tsx-asynchronous-abort https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/tsx_async_abort.html Fixes: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1853200 Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com> Message-Id: <20200310104806.2723-2-christian.ehrhardt@canonical.com> Reviewed-by: Jiri Denemark <jdenemar@redhat.com>	2020-03-25 22:27:39 +01:00
Jiri Denemark	62a50628ff	cputest: Add data for Intel(R) Core(TM) i7-8550U CPU without TSX ... Signed-off-by: Jiri Denemark <jdenemar@redhat.com> Reviewed-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>	2020-03-09 16:17:34 +01:00