[PATCH] efi: Always map EfiRuntimeServicesCode and EfiRuntimeServicesData

[Sergey Temerkhanov <s.temerkhanov@xxxxxxxxx>]

This helps overcome problems observed with some UEFI implementations
which don't set the Attributes field in memery descriptors properly

Signed-off-by: Sergey Temerkhanov <s.temerkhanov@xxxxxxxxx>
---
 xen/common/efi/boot.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/xen/common/efi/boot.c b/xen/common/efi/boot.c
index 5a520bf21d..4644ce2525 100644
--- a/xen/common/efi/boot.c
+++ b/xen/common/efi/boot.c
@@ -1521,7 +1521,9 @@ void __init efi_init_memory(void)
         }
 
         if ( !efi_enabled(EFI_RS) ||
-             (!(desc->Attribute & EFI_MEMORY_RUNTIME) &&
+             ((!(desc->Attribute & EFI_MEMORY_RUNTIME) &&
+                (desc->Type != EfiRuntimeServicesCode &&
+                 desc->Type != EfiRuntimeServicesData)) &&
               (!map_bs ||
                (desc->Type != EfiBootServicesCode &&
                 desc->Type != EfiBootServicesData))) )
-- 
2.26.2