On 02/09/20 20:32, Jim Mattson wrote:
>
> /* If not VM_EXIT_CLEAR_BNDCFGS, the L2 value propagates to L1. */
> if (vmcs12->vm_exit_controls & VM_EXIT_CLEAR_BNDCFGS)
> vmcs_write64(GUEST_BNDCFGS, 0);
>
> BTW, where does the L2 value propagate to L1 if not VM_EXIT_CLEAR_BNDCFGS?
Hmm,
On Wed, Sep 2, 2020 at 11:16 AM Sean Christopherson
wrote:
>
> On Fri, Aug 28, 2020 at 01:39:39PM -0700, Jim Mattson wrote:
> > On Fri, Aug 28, 2020 at 1:54 AM Chenyi Qiang wrote:
> > >
> > > Update the fields (i.e. VM_{ENTRY_LOAD, EXIT_CLEAR}_BNDCFGS and
> > > VM_{ENTRY,
On Fri, Aug 28, 2020 at 01:39:39PM -0700, Jim Mattson wrote:
> On Fri, Aug 28, 2020 at 1:54 AM Chenyi Qiang wrote:
> >
> > Update the fields (i.e. VM_{ENTRY_LOAD, EXIT_CLEAR}_BNDCFGS and
> > VM_{ENTRY, EXIT}_LOAD_IA32_PERF_GLOBAL_CTRL) in
> > nested MSR_IA32_VMX_TRUE_{ENTRY, EXIT}_CTLS according
On Fri, Aug 28, 2020 at 1:54 AM Chenyi Qiang wrote:
>
> Update the fields (i.e. VM_{ENTRY_LOAD, EXIT_CLEAR}_BNDCFGS and
> VM_{ENTRY, EXIT}_LOAD_IA32_PERF_GLOBAL_CTRL) in
> nested MSR_IA32_VMX_TRUE_{ENTRY, EXIT}_CTLS according to guest CPUID
> when user space initializes the features MSRs.
Update the fields (i.e. VM_{ENTRY_LOAD, EXIT_CLEAR}_BNDCFGS and
VM_{ENTRY, EXIT}_LOAD_IA32_PERF_GLOBAL_CTRL) in
nested MSR_IA32_VMX_TRUE_{ENTRY, EXIT}_CTLS according to guest CPUID
when user space initializes the features MSRs. Regardless of the order
of SET_CPUID and SET_MSRS from the user space,
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