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target/arm/helper: Implement CNTHCTL_EL2.CNT[VP]MASK

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When FEAT_RME is implemented, these bits override the value of
CNT[VP]_CTL_EL0.IMASK in Realm and Root state. Move the IRQ state update
into a new gt_update_irq() function and test those bits every time we
recompute the IRQ state.

Since we're removing the IRQ state from some trace events, add a new
trace event for gt_update_irq().

Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Message-id: 20230809123706.1842548-7-jean-philippe@linaro.org
[PMM: only register change hook if not USER_ONLY and if TCG]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Jean-Philippe Brucker 2023-08-22 17:31:13 +01:00 • committed by Peter Maydell
parent 1acd00ef14
commit f6fc36deef
4 changed files with 68 additions and 14 deletions
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6
target/arm/cpu.c
View file

@ -2169,6 +2169,12 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
set_feature(env, ARM_FEATURE_VBAR);
}
#ifndef CONFIG_USER_ONLY
if (tcg_enabled() && cpu_isar_feature(aa64_rme, cpu)) {
arm_register_el_change_hook(cpu, &gt_rme_post_el_change, 0);
}
#endif
register_cp_regs_for_features(cpu);
arm_cpu_register_gdb_regs_for_features(cpu);