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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/include/kvm/arm_vgic.h
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@@ -1,17 +1,6 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * Copyright (C) 2015, 2016 ARM Ltd.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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  */
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 #ifndef __KVM_ARM_VGIC_H
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 #define __KVM_ARM_VGIC_H
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@@ -81,6 +70,7 @@
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 	/* Hardware has GICv4? */
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 	bool			has_gicv4;
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+	bool			has_gicv4_1;
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 	/* GIC system register CPU interface */
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 	struct static_key_false gicv3_cpuif;
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@@ -100,7 +90,7 @@
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 };
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 struct vgic_irq {
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-	spinlock_t irq_lock;		/* Protects the content of the struct */
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+	raw_spinlock_t irq_lock;	/* Protects the content of the struct */
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 	struct list_head lpi_list;	/* Used to link all LPIs together */
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 	struct list_head ap_list;
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@@ -241,6 +231,9 @@
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 	/* distributor enabled */
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 	bool			enabled;
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+	/* Wants SGIs without active state */
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+	bool			nassgireq;
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+
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 	struct vgic_irq		*spis;
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 	struct vgic_io_device	dist_iodev;
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@@ -251,7 +244,7 @@
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 	 * Contains the attributes and gpa of the LPI configuration table.
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 	 * Since we report GICR_TYPER.CommonLPIAff as 0b00, we can share
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 	 * one address across all redistributors.
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-	 * GICv3 spec: 6.1.2 "LPI Configuration tables"
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+	 * GICv3 spec: IHI 0069E 6.1.1 "LPI Configuration tables"
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 	 */
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 	u64			propbaser;
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@@ -259,6 +252,9 @@
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 	raw_spinlock_t		lpi_list_lock;
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 	struct list_head	lpi_list_head;
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 	int			lpi_list_count;
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+
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+	/* LPI translation cache */
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+	struct list_head	lpi_translation_cache;
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 	/* used by vgic-debug */
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 	struct vgic_state_iter *iter;
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@@ -278,6 +274,8 @@
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 	u32		vgic_vmcr;
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 	u32		vgic_apr;
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 	u32		vgic_lr[VGIC_V2_MAX_LRS];
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+
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+	unsigned int used_lrs;
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 };
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 struct vgic_v3_cpu_if {
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@@ -295,6 +293,8 @@
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 	 * linking the Linux IRQ subsystem and the ITS together.
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 	 */
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 	struct its_vpe	its_vpe;
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+
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+	unsigned int used_lrs;
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 };
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 struct vgic_cpu {
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@@ -304,10 +304,9 @@
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 		struct vgic_v3_cpu_if	vgic_v3;
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 	};
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-	unsigned int used_lrs;
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 	struct vgic_irq private_irqs[VGIC_NR_PRIVATE_IRQS];
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-	spinlock_t ap_list_lock;	/* Protects the ap_list */
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+	raw_spinlock_t ap_list_lock;	/* Protects the ap_list */
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 	/*
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 	 * List of IRQs that this VCPU should consider because they are either
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@@ -322,7 +321,6 @@
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 	 * parts of the redistributor.
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 	 */
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 	struct vgic_io_device	rd_iodev;
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-	struct vgic_io_device	sgi_iodev;
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 	struct vgic_redist_region *rdreg;
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 	/* Contains the attributes and gpa of the LPI pending tables. */
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@@ -387,8 +385,6 @@
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 	return kvm_vgic_global_state.max_gic_vcpus;
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 }
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-int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi);
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-
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 /**
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  * kvm_vgic_setup_default_irq_routing:
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  * Setup a default flat gsi routing table mapping all SPIs
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@@ -405,7 +401,8 @@
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 int kvm_vgic_v4_unset_forwarding(struct kvm *kvm, int irq,
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 				 struct kvm_kernel_irq_routing_entry *irq_entry);
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-void kvm_vgic_v4_enable_doorbell(struct kvm_vcpu *vcpu);
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-void kvm_vgic_v4_disable_doorbell(struct kvm_vcpu *vcpu);
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+int vgic_v4_load(struct kvm_vcpu *vcpu);
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+void vgic_v4_commit(struct kvm_vcpu *vcpu);
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+int vgic_v4_put(struct kvm_vcpu *vcpu, bool need_db);
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 #endif /* __KVM_ARM_VGIC_H */