Messages in this thread | | | Date | Fri, 11 Dec 2015 14:20:16 -0800 | Subject | Re: [PATCHV2 3/3] x86, ras: Add mcsafe_memcpy() function to recover from machine checks | From | Dan Williams <> |
| |
On Fri, Dec 11, 2015 at 2:17 PM, Luck, Tony <tony.luck@intel.com> wrote: >> Also, would it be more straightforward if the mcexception landing pad >> looked up the va -> pa mapping by itself? Or is that somehow not >> reliable? > > If we did get all the above right, then we could have > target use virt_to_phys() to convert to physical ... > I don't see that this part would be a problem.
virt_to_phys() implies a linear address. In the case of the use in the pmem driver we'll be using an ioremap()'d address off somewherein vmalloc space.
| |