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| author | kaf24@scramble.cl.cam.ac.uk <kaf24@scramble.cl.cam.ac.uk> | 2004-12-30 11:46:55 +0000 |
|---|---|---|
| committer | kaf24@scramble.cl.cam.ac.uk <kaf24@scramble.cl.cam.ac.uk> | 2004-12-30 11:46:55 +0000 |
| commit | 5b1748e026bd4eb012d12c72dec5202daebda85c (patch) | |
| tree | 4167daf9bda1649848ac8e2fd9b14aed6de8f1c8 /xen/include/asm-x86/e820.h | |
| parent | 43ac1bd5c3c751223062e91e852c7607c9920fc2 (diff) | |
| download | xen-5b1748e026bd4eb012d12c72dec5202daebda85c.tar.gz xen-5b1748e026bd4eb012d12c72dec5202daebda85c.tar.bz2 xen-5b1748e026bd4eb012d12c72dec5202daebda85c.zip | |
bitkeeper revision 1.1159.170.72 (41d3eaaftC1Zqz_rl9bIUUcTSZFIjg)
Add e820 parsing to Xen. Currently not hooked into heap initialisation:
this is the next step.
Diffstat (limited to 'xen/include/asm-x86/e820.h')
| -rw-r--r-- | xen/include/asm-x86/e820.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/xen/include/asm-x86/e820.h b/xen/include/asm-x86/e820.h new file mode 100644 index 0000000000..0767642570 --- /dev/null +++ b/xen/include/asm-x86/e820.h @@ -0,0 +1,33 @@ +#ifndef __E820_HEADER +#define __E820_HEADER + +#include <asm/page.h> + +#define E820MAX 32 + +#define E820_RAM 1 +#define E820_RESERVED 2 +#define E820_ACPI 3 +#define E820_NVS 4 + +#ifndef __ASSEMBLY__ +struct e820entry { + u64 addr; + u64 size; + u32 type; +} __attribute__((packed)); + +struct e820map { + int nr_map; + struct e820entry map[E820MAX]; +}; + +extern unsigned long init_e820(struct e820entry *, int); +extern struct e820map e820; + +#endif /*!__ASSEMBLY__*/ + +#define PFN_DOWN(_p) ((_p)&PAGE_MASK) +#define PFN_UP(_p) (((_p)+(PAGE_SIZE-1))&PAGE_MASK) + +#endif /*__E820_HEADER*/ |