2017-06-22 23:27 GMT+08:00 Radim Krčmář <rkrcmar@xxxxxxxxxx>: > Patch 1 creates a new testcase executable, and patch 2 tests the bug. > > Paolo Bonzini (2): > x86: move syscall MSR testcase to separate test > x86: add testcase for syscall/sysret TF handling ./x86-run x86/syscall.flat qemu-system-i386 -nodefaults -device pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4 --enable-kvm -vnc none -serial stdio -device pci-testdev -machine accel=kvm -kernel x86/syscall.flat enabling apic PASS: MSR_*STAR eager loading Unhandled exception 6 #UD at ip 000000000040036e error_code=0000 rflags=00010046 cs=0000003b rax=0000000000000146 rcx=0000000000400365 rdx=0000000000000001 rbx=00000000c0000080 rbp=000000000044df80 rsi=0000000000400372 rdi=0000000000000001 r8=000000000040c70c r9=00000000000003f8 r10=0000000000000002 r11=0000000000000046 r12=00000000c0000081 r13=00000097cfdff1ab r14=00000097d130aad0 r15=0000000000000002 cr0=0000000080000011 cr2=0000000000000000 cr3=0000000000409000 cr4=0000000000000020 cr8=0000000000000000 STACK: @40036e 4002a2 I can encounter this w/ -cpu host or w/o -cpu host for both qemu-system-i386 and qemu-system-x86_64. Regards, Wanpeng Li > > lib/x86/processor.h | 4 ++ > x86/Makefile.x86_64 | 1 + > x86/msr.c | 19 --------- > x86/syscall.c | 108 ++++++++++++++++++++++++++++++++++++++++++++++++++++ > x86/unittests.cfg | 4 ++ > 5 files changed, 117 insertions(+), 19 deletions(-) > create mode 100644 x86/syscall.c > > -- > 2.13.1 >
