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irqchip/gic-v5: Drop has_gcie_v3_compat from gic_kvm_info

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The presence of FEAT_GCIE_LEGACY is now handled as a CPU
feature. Therefore, drop the check and flag from the GIC driver and
gic_kvm_info as it is no longer required or used by KVM.

Signed-off-by: Sascha Bischoff <sascha.bischoff@arm.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Sascha Bischoff
2025-08-28 10:59:43 +00:00
committed by Marc Zyngier
parent 754e43b095
commit 5c5db9efe3
2 changed files with 0 additions and 9 deletions
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7
drivers/irqchip/irq-gic-v5.c
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@@ -1062,16 +1062,9 @@ static void gicv5_set_cpuif_idbits(void)
#ifdef CONFIG_KVM
static struct gic_kvm_info gic_v5_kvm_info __initdata;
static bool __init gicv5_cpuif_has_gcie_legacy(void)
{
u64 idr0 = read_sysreg_s(SYS_ICC_IDR0_EL1);
return !!FIELD_GET(ICC_IDR0_EL1_GCIE_LEGACY, idr0);
}
static void __init gic_of_setup_kvm_info(struct device_node *node)
{
gic_v5_kvm_info.type = GIC_V5;
gic_v5_kvm_info.has_gcie_v3_compat = gicv5_cpuif_has_gcie_legacy();
/* GIC Virtual CPU interface maintenance interrupt */
gic_v5_kvm_info.no_maint_irq_mask = false;

2
include/linux/irqchip/arm-vgic-info.h
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@@ -36,8 +36,6 @@ struct gic_kvm_info {
bool has_v4_1;
/* Deactivation impared, subpar stuff */
bool no_hw_deactivation;
/* v3 compat support (GICv5 hosts, only) */
bool has_gcie_v3_compat;
};
#ifdef CONFIG_KVM