Yaya48
cf256aa081
Upstream: https://gitlab.com/qemu-project/qemu.git Upstream-Commit: d2e570cc0f97b936902a5b1b86b73c0f5998b475
38 lines
961 B
C
38 lines
961 B
C
/*
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* ARM security space helpers
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*
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* Provide ARMSecuritySpace and helpers for code that is not tied to CPU.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef HW_ARM_ARM_SECURITY_H
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#define HW_ARM_ARM_SECURITY_H
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/*
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* ARM v9 security states.
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* The ordering of the enumeration corresponds to the low 2 bits
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* of the GPI value, and (except for Root) the concat of NSE:NS.
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*/
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typedef enum ARMSecuritySpace {
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ARMSS_Secure = 0,
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ARMSS_NonSecure = 1,
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ARMSS_Root = 2,
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ARMSS_Realm = 3,
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} ARMSecuritySpace;
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/* Return true if @space is secure, in the pre-v9 sense. */
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static inline bool arm_space_is_secure(ARMSecuritySpace space)
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{
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return space == ARMSS_Secure || space == ARMSS_Root;
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}
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/* Return the ARMSecuritySpace for @secure, assuming !RME or EL[0-2]. */
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static inline ARMSecuritySpace arm_secure_to_space(bool secure)
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{
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return secure ? ARMSS_Secure : ARMSS_NonSecure;
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}
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#endif /* HW_ARM_ARM_SECURITY_H */
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