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

[Shannon Zhao <shannon.zhao@xxxxxxxxxx>]

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.
       status = SystemTable->BootServices->ExitBootServices(ImageHandle,
                                                             map_key);
        efi_bs = NULL;


--
Shannon

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