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Re: [Xen-devel] [PATCH v3 09/16] efi: explicitly define efi struct in xen/arch/x86/efi/stub.c



>>> On 05.07.16 at 20:33, <daniel.kiper@xxxxxxxxxx> wrote:
> On Fri, May 27, 2016 at 02:16:09AM -0600, Jan Beulich wrote:
>> >>> On 25.05.16 at 18:45, <daniel.kiper@xxxxxxxxxx> wrote:
>> > On Wed, May 25, 2016 at 01:03:42AM -0600, Jan Beulich wrote:
>> >> >>> On 15.04.16 at 14:33, <daniel.kiper@xxxxxxxxxx> wrote:
>> >> > --- a/xen/arch/x86/efi/stub.c
>> >> > +++ b/xen/arch/x86/efi/stub.c
>> >> > @@ -8,6 +8,14 @@
>> >> >  const bool_t efi_enabled = 0;
>> >> >  #endif
>> >> >
>> >> > +struct efi __read_mostly efi = {
>> >> > +       .acpi    = EFI_INVALID_TABLE_ADDR,
>> >> > +       .acpi20  = EFI_INVALID_TABLE_ADDR,
>> >> > +       .mps     = EFI_INVALID_TABLE_ADDR,
>> >> > +       .smbios  = EFI_INVALID_TABLE_ADDR,
>> >> > +       .smbios3 = EFI_INVALID_TABLE_ADDR
>> >> > +};
>> >>
>> >> I don't view duplicating this here as a good approach - you'd better
>> >> move the existing instance elsewhere. If this was a temporary thing
>> >> (until a later patch), it might be acceptable, but since building without
>> >> EFI support will need to remain an option (for people using older tool
>> >> chains), I don't expect a later patch to remove this.
>> >
>> > Do you think about separate C file which should contain efi struct
>> > and should be included in stub.c and runtime.c? Or anything else?
>>
>> A separate file seems to be overkill. Just move it to some other
>> existing file; I'm sure some sensible place can be found.
> 
> This solution is not perfect, however, I cannot find better place for
> efi struct. If you have one then drop me a line.

common/kernel.c or common/lib.c.

Jan


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