>>> On 26.08.16 at 10:09, <jbeul...@suse.com> wrote: >>>> On 25.08.16 at 18:53, <dmitry.rocko...@intel.com> wrote: >> We are working on enabling XEN with WindRiver Simics, which is Intel >> reference functional simulator for servers. >> >> We found the issue in XEN with MPX using. >> If MPX is supported by CPUID, but MPX is not supported by VMX, XEN is >> failing on store CPU MSR GUEST_BNDCFGS (file >> xen-4.7.0/xen/arch/x86/hvm/vmx/vmx.c:798). >> >> SDM says in 24.4.1 Guest Register State: >> IA32_BNDCFGS (64 bits). This field is supported only on processors that >> support either the 1-setting of the >> "load IA32_BNDCFGS" VM-entry control or that of the "clear IA32_BNDCFGS" >> VM-exit control. >> >> Looks like XEN doesn't consult VM-entry control or VM-exit control listed in >> SDM. > > Could you give the attached patch a try? It's against -unstable and > will require trivial adjustment to two of the vmx.c hunks in order to > apply to 4.7.
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