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Re: [Xen-devel] [PATCH v5 08/13] x86/traps: factor out pv_trap_init



On Wed, Jun 28, 2017 at 11:06:58AM +0100, Wei Liu wrote:
> On Tue, Jun 27, 2017 at 12:26:52PM -0600, Jan Beulich wrote:
> > >>> Wei Liu <wei.liu2@xxxxxxxxxx> 06/26/17 6:29 PM >>>
> > >--- a/xen/arch/x86/traps.c
> > >+++ b/xen/arch/x86/traps.c
> > >@@ -1934,21 +1934,29 @@ void __init init_idt_traps(void)
> >      >this_cpu(compat_gdt_table) = boot_cpu_compat_gdt_table;
> >  >}
> >  >
> > >+void __init pv_trap_init(void)
> > >+{
> > >+    /* The 32-on-64 hypercall vector is only accessible from ring 1. */
> > >+    _set_gate(idt_table + HYPERCALL_VECTOR,
> > >+              SYS_DESC_trap_gate, 1, entry_int82);
> > >+
> > >+    /* Fast trap for int80 (faster than taking the #GP-fixup path). */
> > >+    _set_gate(idt_table + LEGACY_SYSCALL_VECTOR, SYS_DESC_trap_gate, 3,
> > >+              &int80_direct_trap);
> > >+
> > >+    open_softirq(NMI_MCE_SOFTIRQ, nmi_mce_softirq);
> > >+}
> > 
> > Any reason you don't move this into pv/traps.c right away?
> 
> Because nmi_mce_softirq needs to be moved at the same time. That can't
> be undone until I refactor the code further in later patch(es).

undone -> done

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