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PDP11: Properly range check DMA access to the I/O page

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Make sure that DMA access to the I/O page can only see addresses on the
Qbus/Unibus and not internal CPU registers
This commit is contained in:
Mark Pizzolato
2018-09-06 11:03:45 -07:00
parent 5f0370749e
commit 7677dad67d
16 changed files with 56 additions and 22 deletions
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2
VAX/vaxmod_defs.h
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@@ -308,6 +308,8 @@ typedef struct {
/* simulated through a single */
/* DEVICE structure (e.g., DZ, VH, DL, DC). */
/* Populated by auto-configure */
DEVICE *dptr; /* back pointer to related device */
/* Populated by auto-configure */
} DIB;
/* Qbus I/O page layout - see pdp11_io_lib.c for address layout details */