> > On my bare-metal machine, I get a #GP on the WRMSR that writes the EOI inside > ipi() : > > Test suite: vmx_sipi_signal_test > Unhandled exception 13 #GP at ip 0000000000417eba > error_code=0000 rflags=00010002 cs=00000008 > rax=0000000000000000 rcx=000000000000080b rdx=0000000000000000 > rbx=0000000000000000 > rbp=000000000053a238 rsi=0000000000000000 rdi=000000000000000b > r8=000000000000000a r9=00000000000003f8 r10=000000000000000d > r11=0000000000000000 > r12=000000000040c7a5 r13=0000000000000000 r14=0000000000000000 > r15=0000000000000000 > cr0=0000000080000011 cr2=0000000000000000 cr3=000000000041f000 > cr4=0000000000000020 > cr8=0000000000000000 > STACK: @417eba 417f36 417481 417383 > > I did not dig much deeper. Could it be that there is some confusion between > xapic/x2apic ? Thanks, Nadav. I cannot reproduce the #GP issue on my bare metal machine. And I am a little bit confused, there is no EOI MSR write in this test suite, how the #GP comes out... Could you provide more info for me to reproduce the issue? Best Regard Yadong