Re: [Xen-devel] Runtime services support for Xen on ARM

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 12.11.15 at 13:52, <shannon.zhao@xxxxxxxxxx> wrote:
> On 2015/11/12 19:04, Jan Beulich wrote:
>>>>> On 12.11.15 at 10:06, <zhaoshenglong@xxxxxxxxxx> wrote:
>>> Today I try the way you suggested. Set USE_SET_VIRTUAL_ADDRESS_MAP on
>>> ARM and make a fake efi_rs_enter() and efi_rs_leave(). But when calling
>>> efi_init_memory, it fails with below log:
>>
>> You can't just #define that constant and assume things will work: This
>> code is there so far only for documentation purposes. You need to go
>> look what parts of it may have bitrotted.
>>
>>> It fails at below line:
>>>
>>>      efi_rs->SetVirtualAddressMap(efi_memmap_size, efi_mdesc_size,
>>>                                   mdesc_ver, efi_memmap);
>>
>> Quite obviously because efi_exit_boot() now sets efi_bs to NULL.
>>
> I see in efi_start() there is below code setting efi_bs to NULL. But 
> here it calls efi_rs not efi_bs. I don't understand the relation of them.

Oh, sorry, my mistake. I guess I'd better not comment on ARM
crashes...

Jan


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