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Added explanatory comment.

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Michael Brown
2005-05-09 13:25:43 +00:00
parent e75b7480d0
commit b2869ed6b8
1 changed files with 7 additions and 0 deletions
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7
src/core/buffer.c
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@@ -14,6 +14,13 @@
* which assemble a file into a single contiguous block. The whole * which assemble a file into a single contiguous block. The whole
* block is then passed to the image loader. * 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" #include "stddef.h"