f8fc109960
repo: https://github.com/u-boot/u-boot commit: d80bb749fab53da72c4a0e09b8c2d2aaa3103c91 Change-Id: Ie6434426e1ec15bc08bb1832798e371f3fd5fb29
34 lines
815 B
C
34 lines
815 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Simple API for configuring TrustZone memory regions
|
|
*
|
|
* The premise is that the desired TZC layout is known beforehand, and it can
|
|
* be configured in one step. tzc_configure() provides this functionality.
|
|
*/
|
|
#ifndef MACH_TZC_H
|
|
#define MACH_TZC_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
enum tzc_sec_mode {
|
|
TZC_ATTR_SEC_NONE = 0,
|
|
TZC_ATTR_SEC_R = 1,
|
|
TZC_ATTR_SEC_W = 2,
|
|
TZC_ATTR_SEC_RW = 3
|
|
};
|
|
|
|
struct tzc_region {
|
|
uintptr_t base;
|
|
uintptr_t top;
|
|
enum tzc_sec_mode sec_mode;
|
|
uint16_t nsec_id;
|
|
uint16_t filters_mask;
|
|
};
|
|
|
|
int tzc_configure(uintptr_t tzc, const struct tzc_region *cfg);
|
|
int tzc_disable_filters(uintptr_t tzc, uint16_t filters_mask);
|
|
int tzc_enable_filters(uintptr_t tzc, uint16_t filters_mask);
|
|
void tzc_dump_config(uintptr_t tzc);
|
|
|
|
#endif /* MACH_TZC_H */
|