diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2015-05-20 16:03:33 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-05-21 11:44:57 +0200 |
| commit | edba90fb16ec7224da591ab8f83efe3673853a3f (patch) | |
| tree | 61b37be2e6e96a2163878e2df98e1f638ce5590e /include/segment.h | |
| parent | d092feedb023a3d631a1cd549dd1d5c18d852ac7 (diff) | |
| download | qboot-edba90fb16ec7224da591ab8f83efe3673853a3f.zip qboot-edba90fb16ec7224da591ab8f83efe3673853a3f.tar.gz qboot-edba90fb16ec7224da591ab8f83efe3673853a3f.tar.bz2 | |
first commit
Based on x86/bios from lkvm
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/segment.h')
| -rw-r--r-- | include/segment.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/segment.h b/include/segment.h new file mode 100644 index 0000000..694eb4b --- /dev/null +++ b/include/segment.h @@ -0,0 +1,19 @@ +#ifndef KVM_SEGMENT_H +#define KVM_SEGMENT_H + +static inline uint32_t segment_to_flat(uint16_t selector, uint16_t offset) +{ + return ((uint32_t)selector << 4) + (uint32_t) offset; +} + +static inline uint16_t flat_to_seg16(uint32_t address) +{ + return address >> 4; +} + +static inline uint16_t flat_to_off16(uint32_t address, uint32_t segment) +{ + return address - (segment << 4); +} + +#endif /* KVM_SEGMENT_H */ |