
24 Jan
2014
24 Jan
'14
1:52 a.m.
-----Original Messages----- From: TigerLiu@viatech.com.cn Sent Time: 2014-01-23 14:44:36 (Thursday) To: u-boot@lists.denx.de Cc: Subject: [U-Boot] U-boot for 64bit ARMv8
Hi, experts: I found ARMv8/Exceptions.S only created a 8 items vector table.
But based on ARMv8 Arch Ref Manual, it should create 16 items in a vector table: Current Exception level with SP_EL0 : 4 items Current Exception level with SP_Elx : 4 items EL immediately lower than target_EL is using AARCH64 : 4 items EL immediately lower than target_EL is using AARCH32 : 4 items
Are current 8 items enough? Or will patch it in the future?
Currently, u-boot for aarch64 does not provide any run time service. So, the low level exception entries are not implemented.
Best wishes,