On 2013-06-05 11:06, Kashyap Chamarthy wrote: > Adding Jan, Jun, to see if they have any inputs here. Thanks for the note, it's very helpful! This test actually fails on older CPUs as well, and I can finally reproduce the issue that Jay also reported. I'm not able to "cure" it by going back to 3b656cf764^, just alter the error report. Anyway, a start. Now I just need time to debug it... Jan > > /kashyap > > On Tue, Jun 4, 2013 at 6:14 PM, Kashyap Chamarthy <kashyap.cv@xxxxxxxxx> wrote: >> Heya, >> >> So, I invoked this in L1 with: >> ======================= >> [test@foo kvm-unit-tests]$ time qemu-system-x86_64 -enable-kvm -device >> pc-testdev -serial stdio -nographic -no-user-config -nodefaults >> -device >> isa-debug-exit,iobase=0xf4,iosize=0x4 -kernel ./x86/eventinj.flat | >> tee /var/tmp/eventinj-test.txt >> enabling apic >> paging enabled >> cr0 = 80010011 >> cr3 = 7fff000 >> cr4 = 20 >> Try to divide by 0 >> DE isr running divider is 0 >> Result is 150 >> DE exception: PASS >> Try int 3 >> BP isr running >> After int 3 >> BP exception: PASS >> Try send vec 33 to itself >> irq1 running >> After vec 33 to itself >> vec 33: PASS >> Try int $33 >> irq1 running >> After int $33 >> int $33: PASS >> Try send vec 32 and 33 to itself >> irq1 running >> irq0 running >> After vec 32 and 33 to itself >> vec 32/33: PASS >> Try send vec 32 and int $33 >> irq1 running >> irq0 running >> After vec 32 and int $33 >> vec 32/int $33: PASS >> Try send vec 33 and 62 and mask one with TPR >> irq1 running >> After 33/62 TPR test >> TPR: PASS >> irq0 running >> Try send NMI to itself >> After NMI to itself >> NMI: FAIL >> Try int 33 with shadowed stack >> irq1 running >> After int 33 with shadowed stack >> int 33 with shadowed stack: PASS >> >> summary: 9 tests, 1 failures >> >> real 0m0.647s >> user 0m0.164s >> sys 0m0.146s >> [test@foo kvm-unit-tests]$ >> ======================= >> >> Any hints on further debugging this ? >> >> >> Other info: >> -------------- >> >> - L1's qemu-kvm CLI >> ======================= >> # ps -ef | grep -i qemu >> qemu 5455 1 94 Jun02 ? 1-07:14:29 >> /usr/bin/qemu-system-x86_64 -machine accel=kvm -name regular-guest -S >> -machine pc-i440fx-1.4,accel=kvm,usb=off -cpu Haswell,+vmx -m 10240 >> -smp 4,sockets=4,cores=1,threads=1 -uuid >> 4ed9ac0b-7f72-dfcf-68b3-e6fe2ac588b2 -nographic -no-user-config >> -nodefaults -chardev >> socket,id=charmonitor,path=/var/lib/libvirt/qemu/regular-guest.monitor,server,nowait >> -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc >> -no-shutdown -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 >> -drive file=/home/test/vmimages/regular-guest.qcow2,if=none,id=drive-virtio-disk0,format=qcow2,cache=none >> -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 >> -netdev tap,fd=23,id=hostnet0,vhost=on,vhostfd=24 -device >> virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:80:c1:34,bus=pci.0,addr=0x3 >> -chardev pty,id=charserial0 -device >> isa-serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0 >> -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 >> root 12255 5419 0 08:41 pts/2 00:00:00 grep --color=auto -i qemu >> ======================= >> >> - Setup details -- >> https://github.com/kashyapc/nvmx-haswell/blob/master/SETUP-nVMX.rst >> >> /kashyap
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