From 3d0a63cd7e991b764829b7dfdd9aef88785f29cf Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Tue, 22 Jul 2008 12:15:02 +0900 Subject: [PATCH] [IA64] kexec: define EFI offsets for identity mapping This is used by paches that move the EFI runtime regions into what is normally guest space. A description of why this mapping is made is included in the patch that makes the mapping. Cc: Tristan Gingold Cc: Isaku Yamahata Cc: Alex Williamson Cc: Aron Griffis Signed-off-by: Simon Horman --- xen/include/asm-ia64/xensystem.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/xen/include/asm-ia64/xensystem.h b/xen/include/asm-ia64/xensystem.h index b40635b409..3e49f8ae63 100644 --- a/xen/include/asm-ia64/xensystem.h +++ b/xen/include/asm-ia64/xensystem.h @@ -33,6 +33,12 @@ #define KERNEL_START 0xf400000004000000 #define GATE_ADDR KERNEL_START +/* In order for Kexec between Xen and Linux to work EFI needs + * to be mapped into the same place by both. It seems most convenient + * to make Xen do the dirty work here */ +#define __IA64_EFI_UNCACHED_OFFSET 0xc000000000000000UL +#define __IA64_EFI_CACHED_OFFSET 0xe000000000000000UL + #define IS_VMM_ADDRESS(addr) ((((addr) >> 60) ^ ((addr) >> 59)) & 1) #endif // _ASM_IA64_XENSYSTEM_H -- 2.30.2