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    SubjectRe: [PATCH v12 10/13] arch/x86: enable task isolation functionality
    On Tue, Apr 05, 2016 at 01:38:39PM -0400, Chris Metcalf wrote:
    > diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
    > index 06cbe25861f1..b02205085571 100644
    > --- a/arch/x86/kernel/traps.c
    > +++ b/arch/x86/kernel/traps.c
    > @@ -36,6 +36,7 @@
    > #include <linux/mm.h>
    > #include <linux/smp.h>
    > #include <linux/io.h>
    > +#include <linux/isolation.h>
    >
    > #ifdef CONFIG_EISA
    > #include <linux/ioport.h>
    > @@ -382,6 +383,7 @@ dotraplinkage void do_bounds(struct pt_regs *regs, long error_code)
    > case 2: /* Bound directory has invalid entry. */
    > if (mpx_handle_bd_fault())
    > goto exit_trap;
    > + task_isolation_exception("bounds check");
    > break; /* Success, it was handled */
    > case 1: /* Bound violation. */
    > info = mpx_generate_siginfo(regs);
    > diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
    > index 5ce1ed02f7e8..025e9d2850c1 100644
    > --- a/arch/x86/mm/fault.c
    > +++ b/arch/x86/mm/fault.c
    > @@ -14,6 +14,7 @@
    > #include <linux/prefetch.h> /* prefetchw */
    > #include <linux/context_tracking.h> /* exception_enter(), ... */
    > #include <linux/uaccess.h> /* faulthandler_disabled() */
    > +#include <linux/isolation.h> /* task_isolation_exception */
    >
    > #include <asm/cpufeature.h> /* boot_cpu_has, ... */
    > #include <asm/traps.h> /* dotraplinkage, ... */
    > @@ -1259,6 +1260,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
    > local_irq_enable();
    > error_code |= PF_USER;
    > flags |= FAULT_FLAG_USER;
    > + task_isolation_exception("page fault at %#lx", address);
    > } else {
    > if (regs->flags & X86_EFLAGS_IF)
    > local_irq_enable();


    That seems to miss a whole bunch of exceptions... what up?

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