Hello, we have noticed that at least on 3.6.8 with VMX after a VCPU has been reset via the INIT-SIPI-SIPI sequence its register state violates Intel's specification.
Specifically for our case we see at the end of vmx_vcpu_reset the following vcpu state: regs_avail=ffefffff regs_dirty=00010010 EIP=00000000 EAX=000006e8 EBX=00000001 ECX=80000001 EDX=00000600 ESI=0000d238 EDI=00000000 EBP=00000000 ESP=00000000 although EAX, EBX, ECX, ESI, EDI, EBP, ESP should _all_ be zero. See http://download.intel.com/products/processor/manual/253668.pdf section 9.1.1 (page 9-2). Shouldn't vmx_vcpu_reset actively clear those registers? And from a quick glance at the SVM code the problem might exist there, too. A workaround is to use qemu-kvm with -kvm-no-irqchip. Julian -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
