On 03.04.2024 18:41, Marek Marczykowski-Górecki wrote: > On Wed, Apr 03, 2024 at 05:04:20PM +0200, Jan Beulich wrote: >> On 03.04.2024 16:50, Marek Marczykowski-Górecki wrote: >>> Hi, >>> >>> I've noticed that tools/tests/tsx/test-tsx fails on a system with Intel >>> Core i7-8750H. Specific error I get: >>> >>> [user@dom0 tsx]$ ./test-tsx >>> TSX tests >>> Got 16 CPUs >>> Testing MSR_TSX_FORCE_ABORT consistency >>> CPU0 val 0 >>> Testing MSR_TSX_CTRL consistency >>> Testing MSR_MCU_OPT_CTRL consistency >>> CPU0 val 0 >>> Testing RTM behaviour >>> Got #UD >>> Host reports RTM, but appears unavailable >> >> Isn't this ... >> >>> Testing PV default/max policies >>> Max: RTM 1, HLE 1, TSX_FORCE_ABORT 0, RTM_ALWAYS_ABORT 0, TSX_CTRL 0 >>> Def: RTM 0, HLE 0, TSX_FORCE_ABORT 0, RTM_ALWAYS_ABORT 0, TSX_CTRL 0 >>> HLE/RTM offered to guests despite not being available >>> Testing HVM default/max policies >>> Max: RTM 1, HLE 1, TSX_FORCE_ABORT 0, RTM_ALWAYS_ABORT 0, TSX_CTRL 0 >>> Def: RTM 0, HLE 0, TSX_FORCE_ABORT 0, RTM_ALWAYS_ABORT 0, TSX_CTRL 0 >>> HLE/RTM offered to guests despite not being available >>> Testing PV guest >>> Created d8 >>> Cur: RTM 0, HLE 0, TSX_FORCE_ABORT 0, RTM_ALWAYS_ABORT 0, TSX_CTRL 0 >>> Cur: RTM 1, HLE 1, TSX_FORCE_ABORT 0, RTM_ALWAYS_ABORT 0, TSX_CTRL 0 >>> Testing HVM guest >>> Created d9 >>> Cur: RTM 0, HLE 0, TSX_FORCE_ABORT 0, RTM_ALWAYS_ABORT 0, TSX_CTRL 0 >>> Cur: RTM 1, HLE 1, TSX_FORCE_ABORT 0, RTM_ALWAYS_ABORT 0, TSX_CTRL 0 >>> [user@dom0 tsx]$ echo $? >>> 1 >> >> ... the reason for this? > > I think so, but the question is why it behaves this way. Could be an > issue with MSR/CPUID values presented by Xen, or values Xen gets from > the CPU.
Can't test_rtm_behaviour() be run even without Xen underneath? Maybe this could be run irrespective of xc_interface_open() failing? Jan
