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| author | Keir Fraser <keir.fraser@citrix.com> | 2009-03-31 11:21:14 +0100 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2009-03-31 11:21:14 +0100 |
| commit | da2c44502457ff12405934742363102bbc281602 (patch) | |
| tree | ebbd7e0adb64b475a6f203a766362fa2977c22b2 /xen/include/asm-x86/x86_64 | |
| parent | c8432f0b5929a6d77cc17cfbc754035c3d86ea1a (diff) | |
| download | xen-da2c44502457ff12405934742363102bbc281602.tar.gz xen-da2c44502457ff12405934742363102bbc281602.tar.bz2 xen-da2c44502457ff12405934742363102bbc281602.zip | |
x86: virt_to_mfn() fixes.
Signed-off-by: Xiaowei Yang <xiaowei.yang@intel.com>
Diffstat (limited to 'xen/include/asm-x86/x86_64')
| -rw-r--r-- | xen/include/asm-x86/x86_64/page.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/xen/include/asm-x86/x86_64/page.h b/xen/include/asm-x86/x86_64/page.h index 8899fe777c..fcfb8eef57 100644 --- a/xen/include/asm-x86/x86_64/page.h +++ b/xen/include/asm-x86/x86_64/page.h @@ -46,8 +46,14 @@ static inline unsigned long __virt_to_maddr(unsigned long va) } #define virt_to_maddr(va) \ (__virt_to_maddr((unsigned long)(va))) + +static inline void *__maddr_to_virt(unsigned long ma) +{ + ASSERT(ma < DIRECTMAP_VIRT_END - DIRECTMAP_VIRT_START); + return (void *)(ma + DIRECTMAP_VIRT_START); +} #define maddr_to_virt(ma) \ - ((void *)((unsigned long)(ma)+DIRECTMAP_VIRT_START)) + (__maddr_to_virt((unsigned long)(ma))) /* read access (should only be used for debug printk's) */ typedef u64 intpte_t; |