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

[Roy Franz <roy.franz@xxxxxxxxxx>]

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?

>
> Jan
>

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