Re: [Xen-devel] [PATCH V4 04/15] Add architecture functions for pre/post ExitBootServices

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 11.09.14 at 19:44, <roy.franz@xxxxxxxxxx> wrote:
> On Thu, Sep 11, 2014 at 7:13 AM, Jan Beulich <JBeulich@xxxxxxxx> wrote:
>>>>> On 10.09.14 at 02:51, <roy.franz@xxxxxxxxxx> wrote:
>>>      status = efi_bs->ExitBootServices(ImageHandle, mmap_key);
>>>      if ( EFI_ERROR(status) )
>>>          PrintErrMesg(L"Cannot exit boot services", status);
>>>
>>> -    /* Adjust pointers into EFI. */
>>> -    efi_ct = (void *)efi_ct + DIRECTMAP_VIRT_START;
>>> -#ifdef USE_SET_VIRTUAL_ADDRESS_MAP
>>> -    efi_rs = (void *)efi_rs + DIRECTMAP_VIRT_START;
>>> -#endif
>>> -    efi_memmap = (void *)efi_memmap + DIRECTMAP_VIRT_START;
>>> -    efi_fw_vendor = (void *)efi_fw_vendor + DIRECTMAP_VIRT_START;
>>> -
>>> -    efi_arch_relocate_image(__XEN_VIRT_START - xen_phys_start);
>>
>> Up to here I don't see anything arch-specific again.
> This is due to runtime services not being implemented.  The "efi_rs"
> variable is defined in the runtime services
> file runtime.c, which is not yet ported to ARM.
> 
> Short of including ARM runtime service support in the patchset, how
> would you like this handled?

As said before, everything that's generic but not used/usable on
ARM right now should stay here, but get made conditional in one
or another way.

Jan


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