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target/arm: Add arm_hcr_el2_nvx_eff

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Implement the pseudocode function EffectiveHCR_EL2_NVx.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20251008215613.300150-39-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2025-10-08 14:55:38 -07:00 • committed by Peter Maydell
parent f0fdbfae97
commit 9e703a01f0
2 changed files with 11 additions and 0 deletions
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1
target/arm/cpu.h
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@ -2235,6 +2235,7 @@ static inline bool arm_is_el2_enabled(CPUARMState *env)
*/
uint64_t arm_hcr_el2_eff_secstate(CPUARMState *env, ARMSecuritySpace space);
uint64_t arm_hcr_el2_eff(CPUARMState *env);
uint64_t arm_hcr_el2_nvx_eff(CPUARMState *env);
uint64_t arm_hcrx_el2_eff(CPUARMState *env);
/*

10
target/arm/helper.c
View file

@ -3904,6 +3904,16 @@ uint64_t arm_hcr_el2_eff(CPUARMState *env)
return arm_hcr_el2_eff_secstate(env, arm_security_space_below_el3(env));
}
uint64_t arm_hcr_el2_nvx_eff(CPUARMState *env)
{
uint64_t hcr = arm_hcr_el2_eff(env);
if (!(hcr & HCR_NV)) {
return 0; /* CONSTRAINED UNPREDICTABLE wrt NV1 */
}
return hcr & (HCR_NV2 | HCR_NV1 | HCR_NV);
}
/*
* Corresponds to ARM pseudocode function ELIsInHost().
*/