On Wed, Nov 20, 2019 at 10:43 AM Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: > > On 20/11/19 19:13, Jim Mattson wrote: > > On Mon, Nov 18, 2019 at 9:29 AM Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: > >> > >> Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx> > > > > I had to add tsx-ctrl to x86/unittests.cfg: > > > > +[tsx-ctrl] > > +file = tsx-ctrl.flat > > +extra_params = -cpu host > > +groups = tsx-ctrl > > + > > > > With qemu 4.1, I get: > > > > timeout -k 1s --foreground 90s /root/kvm-unit-tests/deps/qemu.sh > > -nodefaults -device pc-testdev -device > > isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none -serial stdio -device > > pci-testdev -machine accel=kvm -kernel x86/tsx-ctrl.flat -smp 1 -cpu > > host # -initrd /tmp/tmp.7wOLppNO4W > > enabling apic > > SKIP: TSX_CTRL not available > > > > Maybe qemu is masking off ARCH_CAP_TSX_CTRL_MSR? I haven't investigated. > > Yes, you need "-cpu host,migratable=off" if you don't have the > corresponding QEMU patches (which I've only sent today, but just > allowing unmigratable features in extra_params will be okay for you to > test). Okay, that works! enabling apic PASS: TSX_CTRL should be 0 PASS: Transactions do not abort PASS: TSX_CTRL hides RTM PASS: TSX_CTRL hides HLE PASS: TSX_CTRL=0 unhides RTM PASS: TSX_CTRL causes transactions to abort PASS: TSX_CTRL=0 causes transactions to succeed SUMMARY: 7 tests ...and, for the vmexit test... enabling apic paging enabled cr0 = 80010011 cr3 = 61e000 cr4 = 20 pci-testdev at 0x10 membar febff000 iobar c000 wr_tsx_ctrl_msr 2058
