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https://github.com/brain-hackers/u-boot-brain
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a797f274d7
kASLR support in kernel requires a random number to be passed via chosen/kaslr-seed propert. sec_firmware generates this random seed which can then be passed in the device tree node. sec_firmware reserves JR3 for it's own usage. Node for JR3 is removed from device-tree. Signed-off-by: Ruchika Gupta <ruchika.gupta@nxp.com>
35 lines
870 B
C
35 lines
870 B
C
/*
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* Copyright 2016 NXP Semiconductor, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __SEC_FIRMWARE_H_
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#define __SEC_FIRMWARE_H_
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#define PSCI_INVALID_VER 0xffffffff
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#define SEC_JR3_OFFSET 0x40000
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int sec_firmware_init(const void *, u32 *, u32 *);
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int _sec_firmware_entry(const void *, u32 *, u32 *);
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bool sec_firmware_is_valid(const void *);
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bool sec_firmware_support_hwrng(void);
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int sec_firmware_get_random(uint8_t *rand, int bytes);
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int fdt_fixup_kaslr(void *fdt);
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#ifdef CONFIG_SEC_FIRMWARE_ARMV8_PSCI
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unsigned int sec_firmware_support_psci_version(void);
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unsigned int _sec_firmware_support_psci_version(void);
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#else
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static inline unsigned int sec_firmware_support_psci_version(void)
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{
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return PSCI_INVALID_VER;
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}
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#endif
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static inline unsigned int sec_firmware_used_jobring_offset(void)
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{
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return SEC_JR3_OFFSET;
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}
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#endif /* __SEC_FIRMWARE_H_ */
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