diff options
Diffstat (limited to 'src/core/buffer.c')
| -rw-r--r-- | src/core/buffer.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/core/buffer.c b/src/core/buffer.c index da75eb65b..5254c64e0 100644 --- a/src/core/buffer.c +++ b/src/core/buffer.c @@ -14,6 +14,13 @@ * which assemble a file into a single contiguous block. The whole * block is then passed to the image loader. * + * + * Note that the rather convoluted way of manipulating the buffer + * descriptors (using copy_{to,from}_phys rather than straightforward + * pointers) is needed to cope with operation as a PXE stack, when we + * may be running in real mode or 16-bit protected mode, and therefore + * cannot directly access arbitrary areas of memory. + * */ #include "stddef.h" |