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542385ee AC |
1 | # |
2 | # RAR device configuration | |
3 | # | |
4 | ||
5 | menu "RAR Register Driver" | |
6 | # | |
7 | # Restricted Access Register Manager | |
8 | # | |
9 | config RAR_REGISTER | |
10 | tristate "Restricted Access Region Register Driver" | |
04314268 | 11 | depends on PCI |
542385ee AC |
12 | default n |
13 | ---help--- | |
04314268 RD |
14 | This driver allows other kernel drivers access to the |
15 | contents of the restricted access region control registers. | |
542385ee | 16 | |
04314268 RD |
17 | The restricted access region control registers |
18 | (rar_registers) are used to pass address and | |
19 | locking information on restricted access regions | |
20 | to other drivers that use restricted access regions. | |
bafb6f63 | 21 | |
04314268 RD |
22 | The restricted access regions are regions of memory |
23 | on the Intel MID Platform that are not accessible to | |
24 | the x86 processor, but are accessible to dedicated | |
25 | processors on board peripheral devices. | |
bafb6f63 | 26 | |
04314268 RD |
27 | The purpose of the restricted access regions is to |
28 | protect sensitive data from compromise by unauthorized | |
29 | programs running on the x86 processor. | |
542385ee | 30 | endmenu |