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?
