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| author | H. Peter Anvin <hpa@linux.intel.com> | 2009-04-14 12:37:42 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2009-04-14 12:37:42 -0700 |
| commit | 77db7ac9110b5e14ea55497f7e47c1dd37600b2f (patch) | |
| tree | 6d834b0be8307ee4fda9df8fc943a8a729898459 /doc | |
| parent | eb22c1f10a7f1946b9301cebf3b0c2c3bd2b11bb (diff) | |
| download | syslinux-77db7ac9110b5e14ea55497f7e47c1dd37600b2f.tar.gz | |
doc: clarify CS.base restriction for KVM
Clarify that the CS.base restriction is a prescription of
compatibility, and not something that the ABI handles transparently.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/comboot.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/doc/comboot.txt b/doc/comboot.txt index 68f1e7e7..cf18b2b6 100644 --- a/doc/comboot.txt +++ b/doc/comboot.txt @@ -948,8 +948,8 @@ AX=0024h [3.80] Cleanup, shuffle and boot, raw version For mode 0 (16-bit real mode), EAX will contain CR0 with bit 0 masked out, suitable for loading into CR0 to immediately enter real mode. Note: if real-mode entry is planned, - (CS.base & 0xfff0000f) == 0 for compatibility with KVM, and - possibly other virtualization solutions. + (CS.base & 0xfff0000f) should == 0 for compatibility with KVM, + and possibly other virtualization solutions. In both mode 0 and mode 1, the data segments will be loaded with base-zero read/write segments. For mode 0, B=0 and the |