[PATCH v1 2/2] firmware: dmi_scan: Pass dmi_entry_point to kexec'ed kernel
andriy.shevchenko at linux.intel.com
Fri Dec 16 04:18:58 PST 2016
On Fri, 2016-12-16 at 10:32 +0800, Dave Young wrote:
> On 12/15/16 at 12:28pm, Jean Delvare wrote:
> > Hi Andy,
> > On Fri, 2 Dec 2016 21:54:16 +0200, Andy Shevchenko wrote:
> > > Until now kexec'ed kernel has no clue where to look for DMI entry
> > > point.
> > >
> > > Pass it via kernel command line parameter in the same way as it's
> > > done for ACPI
> > > RSDP.
> > I am no kexec expert but this confuses me. Shouldn't the second
> > kernel
> > have access to the EFI systab as the first kernel does? It includes
> > many more pointers than just ACPI and DMI tables, and it would seem
> > inconvenient to have to pass all these addresses individually
> > explicitly.
> Yes, in modern linux kernel, kexec has the support for EFI, I think it
> should work naturally at least in x86_64.
Thanks for this good news!
Unfortunately Intel Galileo is 32-bit platform.
Andy Shevchenko <andriy.shevchenko at linux.intel.com>
Intel Finland Oy
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