diff options
Diffstat (limited to 'xen-2.4.16/include/xeno/config.h')
| -rw-r--r-- | xen-2.4.16/include/xeno/config.h | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/xen-2.4.16/include/xeno/config.h b/xen-2.4.16/include/xeno/config.h index d48fadbe42..ccbbd1d325 100644 --- a/xen-2.4.16/include/xeno/config.h +++ b/xen-2.4.16/include/xeno/config.h @@ -41,12 +41,16 @@ #define __cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES))) #define ____cacheline_aligned __cacheline_aligned -/* 0-8MB is fixed monitor space for now. */ -#define MAX_MONITOR_ADDRESS ( 16*1024*1024) -#define MAX_DMA_ADDRESS ( 16*1024*1024) -#define MAX_USABLE_ADDRESS ((0xfc000000-__PAGE_OFFSET) & ~((1<<22)-1)) - /*^^^^^^^^^*/ - /*arbitrary*/ +/* 0-16MB is fixed monitor space. 0-56MB is direct-mapped at top of memory.*/ +#define MAX_MONITOR_ADDRESS (16*1024*1024) +#define MAX_DMA_ADDRESS (16*1024*1024) +#define MAX_DIRECTMAP_ADDRESS (56*1024*1024) +/* Penultimate 4MB of virtual address space used for domain page mappings. */ +#define MAPCACHE_VIRT_START (PAGE_OFFSET + MAX_DIRECTMAP_ADDRESS) +#define MAPCACHE_VIRT_END (MAPCACHE_VIRT_START + (4*1024*1024)) +/* Final 4MB of virtual address space used for ioremap(). */ +#define IOREMAP_VIRT_START (MAPCACHE_VIRT_END) +#define IOREMAP_VIRT_END (IOREMAP_VIRT_START + (4*1024*1024)) /* Linkage for x86 */ #define FASTCALL(x) x __attribute__((regparm(3))) |