| US 7,613,872 B2 | ||
| Providing core root of trust measurement (CRTM) for systems using a backup copy of basic input/output system (BIOS) | ||
| Richard A. Dayan, Wake Forest, N.C. (US); and Scott N. Dunham, Raleigh, N.C. (US) | ||
| Assigned to International Business Machines Corporation, Armonk, N.Y. (US) | ||
| Filed on Nov. 28, 2006, as Appl. No. 11/564,096. | ||
| Prior Publication US 2008/0126782 A1, May 29, 2008 | ||
| Int. Cl. G06F 12/00 (2006.01) | ||
| U.S. Cl. 711—103 | 20 Claims |
| 1. A computer system, comprising:
a flash memory including a primary flash bank and a secondary flash bank, wherein the primary flash bank comprises Core Root
of Trust Measurement (CRTM) logic and Basic Input/Output System (BIOS) logic and the secondary flash bank comprises a backup
copy of the CRTM logic and the BIOS logic; and
a switching mechanism configured to selectively activate the primary flash bank or the secondary flash bank.
|