diff options
| author | Ruchika Gupta <ruchika.gupta@nxp.com> | 2017-08-16 15:58:10 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-08-26 14:56:11 -0400 |
| commit | a797f274d7ae806d84b9ececf71f043ca6c1502a (patch) | |
| tree | 56b5e159ab2ae081434ac18dabdb3e281b1094a3 /arch/arm/include/asm | |
| parent | 225bfd3906453c13a0a88b03d8e62a2f267b3689 (diff) | |
ARMv8/sec_firmware : Update chosen/kaslr-seed with random number
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>
Diffstat (limited to 'arch/arm/include/asm')
| -rw-r--r-- | arch/arm/include/asm/armv8/sec_firmware.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/include/asm/armv8/sec_firmware.h b/arch/arm/include/asm/armv8/sec_firmware.h index bc1d97d7a9..6d42a7111f 100644 --- a/arch/arm/include/asm/armv8/sec_firmware.h +++ b/arch/arm/include/asm/armv8/sec_firmware.h @@ -8,10 +8,14 @@ #define __SEC_FIRMWARE_H_ #define PSCI_INVALID_VER 0xffffffff +#define SEC_JR3_OFFSET 0x40000 int sec_firmware_init(const void *, u32 *, u32 *); int _sec_firmware_entry(const void *, u32 *, u32 *); bool sec_firmware_is_valid(const void *); +bool sec_firmware_support_hwrng(void); +int sec_firmware_get_random(uint8_t *rand, int bytes); +int fdt_fixup_kaslr(void *fdt); #ifdef CONFIG_SEC_FIRMWARE_ARMV8_PSCI unsigned int sec_firmware_support_psci_version(void); unsigned int _sec_firmware_support_psci_version(void); @@ -22,4 +26,9 @@ static inline unsigned int sec_firmware_support_psci_version(void) } #endif +static inline unsigned int sec_firmware_used_jobring_offset(void) +{ + return SEC_JR3_OFFSET; +} + #endif /* __SEC_FIRMWARE_H_ */ |