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From: Marc Zyngier <maz@kernel.org>
To: linux-arm-kernel@lists.infradead.org,
	kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org
Cc: Will Deacon <will@kernel.org>,
	Andre Przywara <andre.przywara@arm.com>,
	Dave Martin <Dave.Martin@arm.com>,
	George Cherian <gcherian@marvell.com>,
	"Zengtao \(B\)" <prime.zeng@hisilicon.com>,
	Catalin Marinas <catalin.marinas@arm.com>
Subject: [PATCH 09/26] KVM: arm64: vgic-v3: Take cpu_if pointer directly instead of vcpu
Date: Wed, 22 Apr 2020 13:00:33 +0100	[thread overview]
Message-ID: <20200422120050.3693593-10-maz@kernel.org> (raw)
In-Reply-To: <20200422120050.3693593-1-maz@kernel.org>

From: Christoffer Dall <christoffer.dall@arm.com>

If we move the used_lrs field to the version-specific cpu interface
structure, the following functions only operate on the struct
vgic_v3_cpu_if and not the full vcpu:

  __vgic_v3_save_state
  __vgic_v3_restore_state
  __vgic_v3_activate_traps
  __vgic_v3_deactivate_traps
  __vgic_v3_save_aprs
  __vgic_v3_restore_aprs

This is going to be very useful for nested virt, so move the used_lrs
field and change the prototypes and implementations of these functions to
take the cpu_if parameter directly.

No functional change.

Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 arch/arm64/include/asm/kvm_hyp.h | 12 ++++++------
 arch/arm64/kvm/hyp/switch.c      |  8 ++++----
 include/kvm/arm_vgic.h           |  5 ++++-
 virt/kvm/arm/hyp/vgic-v3-sr.c    | 33 ++++++++++----------------------
 virt/kvm/arm/vgic/vgic-v2.c      | 10 +++++-----
 virt/kvm/arm/vgic/vgic-v3.c      | 14 ++++++++------
 virt/kvm/arm/vgic/vgic.c         | 25 ++++++++++++++++--------
 7 files changed, 54 insertions(+), 53 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index dcb63bf941057..f3c3d7645000f 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -55,12 +55,12 @@
 
 int __vgic_v2_perform_cpuif_access(struct kvm_vcpu *vcpu);
 
-void __vgic_v3_save_state(struct kvm_vcpu *vcpu);
-void __vgic_v3_restore_state(struct kvm_vcpu *vcpu);
-void __vgic_v3_activate_traps(struct kvm_vcpu *vcpu);
-void __vgic_v3_deactivate_traps(struct kvm_vcpu *vcpu);
-void __vgic_v3_save_aprs(struct kvm_vcpu *vcpu);
-void __vgic_v3_restore_aprs(struct kvm_vcpu *vcpu);
+void __vgic_v3_save_state(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_restore_state(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_activate_traps(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_deactivate_traps(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_save_aprs(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_restore_aprs(struct vgic_v3_cpu_if *cpu_if);
 int __vgic_v3_perform_cpuif_access(struct kvm_vcpu *vcpu);
 
 void __timer_enable_traps(struct kvm_vcpu *vcpu);
diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c
index d79319038b119..c48c96565f1a7 100644
--- a/arch/arm64/kvm/hyp/switch.c
+++ b/arch/arm64/kvm/hyp/switch.c
@@ -270,8 +270,8 @@ static void __hyp_text __deactivate_vm(struct kvm_vcpu *vcpu)
 static void __hyp_text __hyp_vgic_save_state(struct kvm_vcpu *vcpu)
 {
 	if (static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif)) {
-		__vgic_v3_save_state(vcpu);
-		__vgic_v3_deactivate_traps(vcpu);
+		__vgic_v3_save_state(&vcpu->arch.vgic_cpu.vgic_v3);
+		__vgic_v3_deactivate_traps(&vcpu->arch.vgic_cpu.vgic_v3);
 	}
 }
 
@@ -279,8 +279,8 @@ static void __hyp_text __hyp_vgic_save_state(struct kvm_vcpu *vcpu)
 static void __hyp_text __hyp_vgic_restore_state(struct kvm_vcpu *vcpu)
 {
 	if (static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif)) {
-		__vgic_v3_activate_traps(vcpu);
-		__vgic_v3_restore_state(vcpu);
+		__vgic_v3_activate_traps(&vcpu->arch.vgic_cpu.vgic_v3);
+		__vgic_v3_restore_state(&vcpu->arch.vgic_cpu.vgic_v3);
 	}
 }
 
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 69f4164d64776..a8d8fdcd37230 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -274,6 +274,8 @@ struct vgic_v2_cpu_if {
 	u32		vgic_vmcr;
 	u32		vgic_apr;
 	u32		vgic_lr[VGIC_V2_MAX_LRS];
+
+	unsigned int used_lrs;
 };
 
 struct vgic_v3_cpu_if {
@@ -291,6 +293,8 @@ struct vgic_v3_cpu_if {
 	 * linking the Linux IRQ subsystem and the ITS together.
 	 */
 	struct its_vpe	its_vpe;
+
+	unsigned int used_lrs;
 };
 
 struct vgic_cpu {
@@ -300,7 +304,6 @@ struct vgic_cpu {
 		struct vgic_v3_cpu_if	vgic_v3;
 	};
 
-	unsigned int used_lrs;
 	struct vgic_irq private_irqs[VGIC_NR_PRIVATE_IRQS];
 
 	raw_spinlock_t ap_list_lock;	/* Protects the ap_list */
diff --git a/virt/kvm/arm/hyp/vgic-v3-sr.c b/virt/kvm/arm/hyp/vgic-v3-sr.c
index ccf1fde9836c1..2ea9a0b73fc44 100644
--- a/virt/kvm/arm/hyp/vgic-v3-sr.c
+++ b/virt/kvm/arm/hyp/vgic-v3-sr.c
@@ -194,10 +194,9 @@ static u32 __hyp_text __vgic_v3_read_ap1rn(int n)
 	return val;
 }
 
-void __hyp_text __vgic_v3_save_state(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_save_state(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
-	u64 used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	u64 used_lrs = cpu_if->used_lrs;
 
 	/*
 	 * Make sure stores to the GIC via the memory mapped interface
@@ -230,10 +229,9 @@ void __hyp_text __vgic_v3_save_state(struct kvm_vcpu *vcpu)
 	}
 }
 
-void __hyp_text __vgic_v3_restore_state(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_restore_state(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
-	u64 used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	u64 used_lrs = cpu_if->used_lrs;
 	int i;
 
 	if (used_lrs || cpu_if->its_vpe.its_vm) {
@@ -257,10 +255,8 @@ void __hyp_text __vgic_v3_restore_state(struct kvm_vcpu *vcpu)
 	}
 }
 
-void __hyp_text __vgic_v3_activate_traps(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_activate_traps(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
-
 	/*
 	 * VFIQEn is RES1 if ICC_SRE_EL1.SRE is 1. This causes a
 	 * Group0 interrupt (as generated in GICv2 mode) to be
@@ -306,9 +302,8 @@ void __hyp_text __vgic_v3_activate_traps(struct kvm_vcpu *vcpu)
 		write_gicreg(cpu_if->vgic_hcr, ICH_HCR_EL2);
 }
 
-void __hyp_text __vgic_v3_deactivate_traps(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_deactivate_traps(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
 	u64 val;
 
 	if (!cpu_if->vgic_sre) {
@@ -333,15 +328,11 @@ void __hyp_text __vgic_v3_deactivate_traps(struct kvm_vcpu *vcpu)
 		write_gicreg(0, ICH_HCR_EL2);
 }
 
-void __hyp_text __vgic_v3_save_aprs(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_save_aprs(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if;
 	u64 val;
 	u32 nr_pre_bits;
 
-	vcpu = kern_hyp_va(vcpu);
-	cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
-
 	val = read_gicreg(ICH_VTR_EL2);
 	nr_pre_bits = vtr_to_nr_pre_bits(val);
 
@@ -370,15 +361,11 @@ void __hyp_text __vgic_v3_save_aprs(struct kvm_vcpu *vcpu)
 	}
 }
 
-void __hyp_text __vgic_v3_restore_aprs(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_restore_aprs(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if;
 	u64 val;
 	u32 nr_pre_bits;
 
-	vcpu = kern_hyp_va(vcpu);
-	cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
-
 	val = read_gicreg(ICH_VTR_EL2);
 	nr_pre_bits = vtr_to_nr_pre_bits(val);
 
@@ -453,7 +440,7 @@ static int __hyp_text __vgic_v3_highest_priority_lr(struct kvm_vcpu *vcpu,
 						    u32 vmcr,
 						    u64 *lr_val)
 {
-	unsigned int used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	unsigned int used_lrs = vcpu->arch.vgic_cpu.vgic_v3.used_lrs;
 	u8 priority = GICv3_IDLE_PRIORITY;
 	int i, lr = -1;
 
@@ -492,7 +479,7 @@ static int __hyp_text __vgic_v3_highest_priority_lr(struct kvm_vcpu *vcpu,
 static int __hyp_text __vgic_v3_find_active_lr(struct kvm_vcpu *vcpu,
 					       int intid, u64 *lr_val)
 {
-	unsigned int used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	unsigned int used_lrs = vcpu->arch.vgic_cpu.vgic_v3.used_lrs;
 	int i;
 
 	for (i = 0; i < used_lrs; i++) {
diff --git a/virt/kvm/arm/vgic/vgic-v2.c b/virt/kvm/arm/vgic/vgic-v2.c
index 621cc168fe3f7..ebf53a4e12963 100644
--- a/virt/kvm/arm/vgic/vgic-v2.c
+++ b/virt/kvm/arm/vgic/vgic-v2.c
@@ -56,7 +56,7 @@ void vgic_v2_fold_lr_state(struct kvm_vcpu *vcpu)
 
 	cpuif->vgic_hcr &= ~GICH_HCR_UIE;
 
-	for (lr = 0; lr < vgic_cpu->used_lrs; lr++) {
+	for (lr = 0; lr < vgic_cpu->vgic_v2.used_lrs; lr++) {
 		u32 val = cpuif->vgic_lr[lr];
 		u32 cpuid, intid = val & GICH_LR_VIRTUALID;
 		struct vgic_irq *irq;
@@ -120,7 +120,7 @@ void vgic_v2_fold_lr_state(struct kvm_vcpu *vcpu)
 		vgic_put_irq(vcpu->kvm, irq);
 	}
 
-	vgic_cpu->used_lrs = 0;
+	cpuif->used_lrs = 0;
 }
 
 /*
@@ -427,7 +427,7 @@ int vgic_v2_probe(const struct gic_kvm_info *info)
 static void save_lrs(struct kvm_vcpu *vcpu, void __iomem *base)
 {
 	struct vgic_v2_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v2;
-	u64 used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	u64 used_lrs = cpu_if->used_lrs;
 	u64 elrsr;
 	int i;
 
@@ -448,7 +448,7 @@ static void save_lrs(struct kvm_vcpu *vcpu, void __iomem *base)
 void vgic_v2_save_state(struct kvm_vcpu *vcpu)
 {
 	void __iomem *base = kvm_vgic_global_state.vctrl_base;
-	u64 used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	u64 used_lrs = vcpu->arch.vgic_cpu.vgic_v2.used_lrs;
 
 	if (!base)
 		return;
@@ -463,7 +463,7 @@ void vgic_v2_restore_state(struct kvm_vcpu *vcpu)
 {
 	struct vgic_v2_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v2;
 	void __iomem *base = kvm_vgic_global_state.vctrl_base;
-	u64 used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	u64 used_lrs = cpu_if->used_lrs;
 	int i;
 
 	if (!base)
diff --git a/virt/kvm/arm/vgic/vgic-v3.c b/virt/kvm/arm/vgic/vgic-v3.c
index 2c9fc13e2c590..118d044f48ddf 100644
--- a/virt/kvm/arm/vgic/vgic-v3.c
+++ b/virt/kvm/arm/vgic/vgic-v3.c
@@ -39,7 +39,7 @@ void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu)
 
 	cpuif->vgic_hcr &= ~ICH_HCR_UIE;
 
-	for (lr = 0; lr < vgic_cpu->used_lrs; lr++) {
+	for (lr = 0; lr < cpuif->used_lrs; lr++) {
 		u64 val = cpuif->vgic_lr[lr];
 		u32 intid, cpuid;
 		struct vgic_irq *irq;
@@ -111,7 +111,7 @@ void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu)
 		vgic_put_irq(vcpu->kvm, irq);
 	}
 
-	vgic_cpu->used_lrs = 0;
+	cpuif->used_lrs = 0;
 }
 
 /* Requires the irq to be locked already */
@@ -664,10 +664,10 @@ void vgic_v3_load(struct kvm_vcpu *vcpu)
 	if (likely(cpu_if->vgic_sre))
 		kvm_call_hyp(__vgic_v3_write_vmcr, cpu_if->vgic_vmcr);
 
-	kvm_call_hyp(__vgic_v3_restore_aprs, vcpu);
+	kvm_call_hyp(__vgic_v3_restore_aprs, kern_hyp_va(cpu_if));
 
 	if (has_vhe())
-		__vgic_v3_activate_traps(vcpu);
+		__vgic_v3_activate_traps(cpu_if);
 
 	WARN_ON(vgic_v4_load(vcpu));
 }
@@ -682,12 +682,14 @@ void vgic_v3_vmcr_sync(struct kvm_vcpu *vcpu)
 
 void vgic_v3_put(struct kvm_vcpu *vcpu)
 {
+	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
+
 	WARN_ON(vgic_v4_put(vcpu, false));
 
 	vgic_v3_vmcr_sync(vcpu);
 
-	kvm_call_hyp(__vgic_v3_save_aprs, vcpu);
+	kvm_call_hyp(__vgic_v3_save_aprs, kern_hyp_va(cpu_if));
 
 	if (has_vhe())
-		__vgic_v3_deactivate_traps(vcpu);
+		__vgic_v3_deactivate_traps(cpu_if);
 }
diff --git a/virt/kvm/arm/vgic/vgic.c b/virt/kvm/arm/vgic/vgic.c
index 99b02ca730a87..c3643b7f101b7 100644
--- a/virt/kvm/arm/vgic/vgic.c
+++ b/virt/kvm/arm/vgic/vgic.c
@@ -786,6 +786,7 @@ static void vgic_flush_lr_state(struct kvm_vcpu *vcpu)
 	int count;
 	bool multi_sgi;
 	u8 prio = 0xff;
+	int i = 0;
 
 	lockdep_assert_held(&vgic_cpu->ap_list_lock);
 
@@ -827,11 +828,14 @@ static void vgic_flush_lr_state(struct kvm_vcpu *vcpu)
 		}
 	}
 
-	vcpu->arch.vgic_cpu.used_lrs = count;
-
 	/* Nuke remaining LRs */
-	for ( ; count < kvm_vgic_global_state.nr_lr; count++)
-		vgic_clear_lr(vcpu, count);
+	for (i = count ; i < kvm_vgic_global_state.nr_lr; i++)
+		vgic_clear_lr(vcpu, i);
+
+	if (!static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif))
+		vcpu->arch.vgic_cpu.vgic_v2.used_lrs = count;
+	else
+		vcpu->arch.vgic_cpu.vgic_v3.used_lrs = count;
 }
 
 static inline bool can_access_vgic_from_kernel(void)
@@ -849,13 +853,13 @@ static inline void vgic_save_state(struct kvm_vcpu *vcpu)
 	if (!static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif))
 		vgic_v2_save_state(vcpu);
 	else
-		__vgic_v3_save_state(vcpu);
+		__vgic_v3_save_state(&vcpu->arch.vgic_cpu.vgic_v3);
 }
 
 /* Sync back the hardware VGIC state into our emulation after a guest's run. */
 void kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu)
 {
-	struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
+	int used_lrs;
 
 	/* An empty ap_list_head implies used_lrs == 0 */
 	if (list_empty(&vcpu->arch.vgic_cpu.ap_list_head))
@@ -864,7 +868,12 @@ void kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu)
 	if (can_access_vgic_from_kernel())
 		vgic_save_state(vcpu);
 
-	if (vgic_cpu->used_lrs)
+	if (!static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif))
+		used_lrs = vcpu->arch.vgic_cpu.vgic_v2.used_lrs;
+	else
+		used_lrs = vcpu->arch.vgic_cpu.vgic_v3.used_lrs;
+
+	if (used_lrs)
 		vgic_fold_lr_state(vcpu);
 	vgic_prune_ap_list(vcpu);
 }
@@ -874,7 +883,7 @@ static inline void vgic_restore_state(struct kvm_vcpu *vcpu)
 	if (!static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif))
 		vgic_v2_restore_state(vcpu);
 	else
-		__vgic_v3_restore_state(vcpu);
+		__vgic_v3_restore_state(&vcpu->arch.vgic_cpu.vgic_v3);
 }
 
 /* Flush our emulation state into the GIC hardware before entering the guest. */
-- 
2.26.1

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WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: linux-arm-kernel@lists.infradead.org,
	kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org
Cc: Mark Rutland <mark.rutland@arm.com>,
	Will Deacon <will@kernel.org>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Andre Przywara <andre.przywara@arm.com>,
	Christoffer Dall <christoffer.dall@arm.com>,
	Dave Martin <Dave.Martin@arm.com>,
	George Cherian <gcherian@marvell.com>,
	James Morse <james.morse@arm.com>,
	"Zengtao \(B\)" <prime.zeng@hisilicon.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	Jintack Lim <jintack@cs.columbia.edu>,
	Julien Thierry <julien.thierry.kdev@gmail.com>
Subject: [PATCH 09/26] KVM: arm64: vgic-v3: Take cpu_if pointer directly instead of vcpu
Date: Wed, 22 Apr 2020 13:00:33 +0100	[thread overview]
Message-ID: <20200422120050.3693593-10-maz@kernel.org> (raw)
In-Reply-To: <20200422120050.3693593-1-maz@kernel.org>

From: Christoffer Dall <christoffer.dall@arm.com>

If we move the used_lrs field to the version-specific cpu interface
structure, the following functions only operate on the struct
vgic_v3_cpu_if and not the full vcpu:

  __vgic_v3_save_state
  __vgic_v3_restore_state
  __vgic_v3_activate_traps
  __vgic_v3_deactivate_traps
  __vgic_v3_save_aprs
  __vgic_v3_restore_aprs

This is going to be very useful for nested virt, so move the used_lrs
field and change the prototypes and implementations of these functions to
take the cpu_if parameter directly.

No functional change.

Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 arch/arm64/include/asm/kvm_hyp.h | 12 ++++++------
 arch/arm64/kvm/hyp/switch.c      |  8 ++++----
 include/kvm/arm_vgic.h           |  5 ++++-
 virt/kvm/arm/hyp/vgic-v3-sr.c    | 33 ++++++++++----------------------
 virt/kvm/arm/vgic/vgic-v2.c      | 10 +++++-----
 virt/kvm/arm/vgic/vgic-v3.c      | 14 ++++++++------
 virt/kvm/arm/vgic/vgic.c         | 25 ++++++++++++++++--------
 7 files changed, 54 insertions(+), 53 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index dcb63bf941057..f3c3d7645000f 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -55,12 +55,12 @@
 
 int __vgic_v2_perform_cpuif_access(struct kvm_vcpu *vcpu);
 
-void __vgic_v3_save_state(struct kvm_vcpu *vcpu);
-void __vgic_v3_restore_state(struct kvm_vcpu *vcpu);
-void __vgic_v3_activate_traps(struct kvm_vcpu *vcpu);
-void __vgic_v3_deactivate_traps(struct kvm_vcpu *vcpu);
-void __vgic_v3_save_aprs(struct kvm_vcpu *vcpu);
-void __vgic_v3_restore_aprs(struct kvm_vcpu *vcpu);
+void __vgic_v3_save_state(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_restore_state(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_activate_traps(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_deactivate_traps(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_save_aprs(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_restore_aprs(struct vgic_v3_cpu_if *cpu_if);
 int __vgic_v3_perform_cpuif_access(struct kvm_vcpu *vcpu);
 
 void __timer_enable_traps(struct kvm_vcpu *vcpu);
diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c
index d79319038b119..c48c96565f1a7 100644
--- a/arch/arm64/kvm/hyp/switch.c
+++ b/arch/arm64/kvm/hyp/switch.c
@@ -270,8 +270,8 @@ static void __hyp_text __deactivate_vm(struct kvm_vcpu *vcpu)
 static void __hyp_text __hyp_vgic_save_state(struct kvm_vcpu *vcpu)
 {
 	if (static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif)) {
-		__vgic_v3_save_state(vcpu);
-		__vgic_v3_deactivate_traps(vcpu);
+		__vgic_v3_save_state(&vcpu->arch.vgic_cpu.vgic_v3);
+		__vgic_v3_deactivate_traps(&vcpu->arch.vgic_cpu.vgic_v3);
 	}
 }
 
@@ -279,8 +279,8 @@ static void __hyp_text __hyp_vgic_save_state(struct kvm_vcpu *vcpu)
 static void __hyp_text __hyp_vgic_restore_state(struct kvm_vcpu *vcpu)
 {
 	if (static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif)) {
-		__vgic_v3_activate_traps(vcpu);
-		__vgic_v3_restore_state(vcpu);
+		__vgic_v3_activate_traps(&vcpu->arch.vgic_cpu.vgic_v3);
+		__vgic_v3_restore_state(&vcpu->arch.vgic_cpu.vgic_v3);
 	}
 }
 
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 69f4164d64776..a8d8fdcd37230 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -274,6 +274,8 @@ struct vgic_v2_cpu_if {
 	u32		vgic_vmcr;
 	u32		vgic_apr;
 	u32		vgic_lr[VGIC_V2_MAX_LRS];
+
+	unsigned int used_lrs;
 };
 
 struct vgic_v3_cpu_if {
@@ -291,6 +293,8 @@ struct vgic_v3_cpu_if {
 	 * linking the Linux IRQ subsystem and the ITS together.
 	 */
 	struct its_vpe	its_vpe;
+
+	unsigned int used_lrs;
 };
 
 struct vgic_cpu {
@@ -300,7 +304,6 @@ struct vgic_cpu {
 		struct vgic_v3_cpu_if	vgic_v3;
 	};
 
-	unsigned int used_lrs;
 	struct vgic_irq private_irqs[VGIC_NR_PRIVATE_IRQS];
 
 	raw_spinlock_t ap_list_lock;	/* Protects the ap_list */
diff --git a/virt/kvm/arm/hyp/vgic-v3-sr.c b/virt/kvm/arm/hyp/vgic-v3-sr.c
index ccf1fde9836c1..2ea9a0b73fc44 100644
--- a/virt/kvm/arm/hyp/vgic-v3-sr.c
+++ b/virt/kvm/arm/hyp/vgic-v3-sr.c
@@ -194,10 +194,9 @@ static u32 __hyp_text __vgic_v3_read_ap1rn(int n)
 	return val;
 }
 
-void __hyp_text __vgic_v3_save_state(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_save_state(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
-	u64 used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	u64 used_lrs = cpu_if->used_lrs;
 
 	/*
 	 * Make sure stores to the GIC via the memory mapped interface
@@ -230,10 +229,9 @@ void __hyp_text __vgic_v3_save_state(struct kvm_vcpu *vcpu)
 	}
 }
 
-void __hyp_text __vgic_v3_restore_state(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_restore_state(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
-	u64 used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	u64 used_lrs = cpu_if->used_lrs;
 	int i;
 
 	if (used_lrs || cpu_if->its_vpe.its_vm) {
@@ -257,10 +255,8 @@ void __hyp_text __vgic_v3_restore_state(struct kvm_vcpu *vcpu)
 	}
 }
 
-void __hyp_text __vgic_v3_activate_traps(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_activate_traps(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
-
 	/*
 	 * VFIQEn is RES1 if ICC_SRE_EL1.SRE is 1. This causes a
 	 * Group0 interrupt (as generated in GICv2 mode) to be
@@ -306,9 +302,8 @@ void __hyp_text __vgic_v3_activate_traps(struct kvm_vcpu *vcpu)
 		write_gicreg(cpu_if->vgic_hcr, ICH_HCR_EL2);
 }
 
-void __hyp_text __vgic_v3_deactivate_traps(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_deactivate_traps(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
 	u64 val;
 
 	if (!cpu_if->vgic_sre) {
@@ -333,15 +328,11 @@ void __hyp_text __vgic_v3_deactivate_traps(struct kvm_vcpu *vcpu)
 		write_gicreg(0, ICH_HCR_EL2);
 }
 
-void __hyp_text __vgic_v3_save_aprs(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_save_aprs(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if;
 	u64 val;
 	u32 nr_pre_bits;
 
-	vcpu = kern_hyp_va(vcpu);
-	cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
-
 	val = read_gicreg(ICH_VTR_EL2);
 	nr_pre_bits = vtr_to_nr_pre_bits(val);
 
@@ -370,15 +361,11 @@ void __hyp_text __vgic_v3_save_aprs(struct kvm_vcpu *vcpu)
 	}
 }
 
-void __hyp_text __vgic_v3_restore_aprs(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_restore_aprs(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if;
 	u64 val;
 	u32 nr_pre_bits;
 
-	vcpu = kern_hyp_va(vcpu);
-	cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
-
 	val = read_gicreg(ICH_VTR_EL2);
 	nr_pre_bits = vtr_to_nr_pre_bits(val);
 
@@ -453,7 +440,7 @@ static int __hyp_text __vgic_v3_highest_priority_lr(struct kvm_vcpu *vcpu,
 						    u32 vmcr,
 						    u64 *lr_val)
 {
-	unsigned int used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	unsigned int used_lrs = vcpu->arch.vgic_cpu.vgic_v3.used_lrs;
 	u8 priority = GICv3_IDLE_PRIORITY;
 	int i, lr = -1;
 
@@ -492,7 +479,7 @@ static int __hyp_text __vgic_v3_highest_priority_lr(struct kvm_vcpu *vcpu,
 static int __hyp_text __vgic_v3_find_active_lr(struct kvm_vcpu *vcpu,
 					       int intid, u64 *lr_val)
 {
-	unsigned int used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	unsigned int used_lrs = vcpu->arch.vgic_cpu.vgic_v3.used_lrs;
 	int i;
 
 	for (i = 0; i < used_lrs; i++) {
diff --git a/virt/kvm/arm/vgic/vgic-v2.c b/virt/kvm/arm/vgic/vgic-v2.c
index 621cc168fe3f7..ebf53a4e12963 100644
--- a/virt/kvm/arm/vgic/vgic-v2.c
+++ b/virt/kvm/arm/vgic/vgic-v2.c
@@ -56,7 +56,7 @@ void vgic_v2_fold_lr_state(struct kvm_vcpu *vcpu)
 
 	cpuif->vgic_hcr &= ~GICH_HCR_UIE;
 
-	for (lr = 0; lr < vgic_cpu->used_lrs; lr++) {
+	for (lr = 0; lr < vgic_cpu->vgic_v2.used_lrs; lr++) {
 		u32 val = cpuif->vgic_lr[lr];
 		u32 cpuid, intid = val & GICH_LR_VIRTUALID;
 		struct vgic_irq *irq;
@@ -120,7 +120,7 @@ void vgic_v2_fold_lr_state(struct kvm_vcpu *vcpu)
 		vgic_put_irq(vcpu->kvm, irq);
 	}
 
-	vgic_cpu->used_lrs = 0;
+	cpuif->used_lrs = 0;
 }
 
 /*
@@ -427,7 +427,7 @@ int vgic_v2_probe(const struct gic_kvm_info *info)
 static void save_lrs(struct kvm_vcpu *vcpu, void __iomem *base)
 {
 	struct vgic_v2_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v2;
-	u64 used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	u64 used_lrs = cpu_if->used_lrs;
 	u64 elrsr;
 	int i;
 
@@ -448,7 +448,7 @@ static void save_lrs(struct kvm_vcpu *vcpu, void __iomem *base)
 void vgic_v2_save_state(struct kvm_vcpu *vcpu)
 {
 	void __iomem *base = kvm_vgic_global_state.vctrl_base;
-	u64 used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	u64 used_lrs = vcpu->arch.vgic_cpu.vgic_v2.used_lrs;
 
 	if (!base)
 		return;
@@ -463,7 +463,7 @@ void vgic_v2_restore_state(struct kvm_vcpu *vcpu)
 {
 	struct vgic_v2_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v2;
 	void __iomem *base = kvm_vgic_global_state.vctrl_base;
-	u64 used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	u64 used_lrs = cpu_if->used_lrs;
 	int i;
 
 	if (!base)
diff --git a/virt/kvm/arm/vgic/vgic-v3.c b/virt/kvm/arm/vgic/vgic-v3.c
index 2c9fc13e2c590..118d044f48ddf 100644
--- a/virt/kvm/arm/vgic/vgic-v3.c
+++ b/virt/kvm/arm/vgic/vgic-v3.c
@@ -39,7 +39,7 @@ void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu)
 
 	cpuif->vgic_hcr &= ~ICH_HCR_UIE;
 
-	for (lr = 0; lr < vgic_cpu->used_lrs; lr++) {
+	for (lr = 0; lr < cpuif->used_lrs; lr++) {
 		u64 val = cpuif->vgic_lr[lr];
 		u32 intid, cpuid;
 		struct vgic_irq *irq;
@@ -111,7 +111,7 @@ void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu)
 		vgic_put_irq(vcpu->kvm, irq);
 	}
 
-	vgic_cpu->used_lrs = 0;
+	cpuif->used_lrs = 0;
 }
 
 /* Requires the irq to be locked already */
@@ -664,10 +664,10 @@ void vgic_v3_load(struct kvm_vcpu *vcpu)
 	if (likely(cpu_if->vgic_sre))
 		kvm_call_hyp(__vgic_v3_write_vmcr, cpu_if->vgic_vmcr);
 
-	kvm_call_hyp(__vgic_v3_restore_aprs, vcpu);
+	kvm_call_hyp(__vgic_v3_restore_aprs, kern_hyp_va(cpu_if));
 
 	if (has_vhe())
-		__vgic_v3_activate_traps(vcpu);
+		__vgic_v3_activate_traps(cpu_if);
 
 	WARN_ON(vgic_v4_load(vcpu));
 }
@@ -682,12 +682,14 @@ void vgic_v3_vmcr_sync(struct kvm_vcpu *vcpu)
 
 void vgic_v3_put(struct kvm_vcpu *vcpu)
 {
+	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
+
 	WARN_ON(vgic_v4_put(vcpu, false));
 
 	vgic_v3_vmcr_sync(vcpu);
 
-	kvm_call_hyp(__vgic_v3_save_aprs, vcpu);
+	kvm_call_hyp(__vgic_v3_save_aprs, kern_hyp_va(cpu_if));
 
 	if (has_vhe())
-		__vgic_v3_deactivate_traps(vcpu);
+		__vgic_v3_deactivate_traps(cpu_if);
 }
diff --git a/virt/kvm/arm/vgic/vgic.c b/virt/kvm/arm/vgic/vgic.c
index 99b02ca730a87..c3643b7f101b7 100644
--- a/virt/kvm/arm/vgic/vgic.c
+++ b/virt/kvm/arm/vgic/vgic.c
@@ -786,6 +786,7 @@ static void vgic_flush_lr_state(struct kvm_vcpu *vcpu)
 	int count;
 	bool multi_sgi;
 	u8 prio = 0xff;
+	int i = 0;
 
 	lockdep_assert_held(&vgic_cpu->ap_list_lock);
 
@@ -827,11 +828,14 @@ static void vgic_flush_lr_state(struct kvm_vcpu *vcpu)
 		}
 	}
 
-	vcpu->arch.vgic_cpu.used_lrs = count;
-
 	/* Nuke remaining LRs */
-	for ( ; count < kvm_vgic_global_state.nr_lr; count++)
-		vgic_clear_lr(vcpu, count);
+	for (i = count ; i < kvm_vgic_global_state.nr_lr; i++)
+		vgic_clear_lr(vcpu, i);
+
+	if (!static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif))
+		vcpu->arch.vgic_cpu.vgic_v2.used_lrs = count;
+	else
+		vcpu->arch.vgic_cpu.vgic_v3.used_lrs = count;
 }
 
 static inline bool can_access_vgic_from_kernel(void)
@@ -849,13 +853,13 @@ static inline void vgic_save_state(struct kvm_vcpu *vcpu)
 	if (!static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif))
 		vgic_v2_save_state(vcpu);
 	else
-		__vgic_v3_save_state(vcpu);
+		__vgic_v3_save_state(&vcpu->arch.vgic_cpu.vgic_v3);
 }
 
 /* Sync back the hardware VGIC state into our emulation after a guest's run. */
 void kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu)
 {
-	struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
+	int used_lrs;
 
 	/* An empty ap_list_head implies used_lrs == 0 */
 	if (list_empty(&vcpu->arch.vgic_cpu.ap_list_head))
@@ -864,7 +868,12 @@ void kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu)
 	if (can_access_vgic_from_kernel())
 		vgic_save_state(vcpu);
 
-	if (vgic_cpu->used_lrs)
+	if (!static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif))
+		used_lrs = vcpu->arch.vgic_cpu.vgic_v2.used_lrs;
+	else
+		used_lrs = vcpu->arch.vgic_cpu.vgic_v3.used_lrs;
+
+	if (used_lrs)
 		vgic_fold_lr_state(vcpu);
 	vgic_prune_ap_list(vcpu);
 }
@@ -874,7 +883,7 @@ static inline void vgic_restore_state(struct kvm_vcpu *vcpu)
 	if (!static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif))
 		vgic_v2_restore_state(vcpu);
 	else
-		__vgic_v3_restore_state(vcpu);
+		__vgic_v3_restore_state(&vcpu->arch.vgic_cpu.vgic_v3);
 }
 
 /* Flush our emulation state into the GIC hardware before entering the guest. */
-- 
2.26.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: linux-arm-kernel@lists.infradead.org,
	kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org
Cc: Andre Przywara <andre.przywara@arm.com>,
	Christoffer Dall <christoffer.dall@arm.com>,
	Dave Martin <Dave.Martin@arm.com>,
	Jintack Lim <jintack@cs.columbia.edu>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	George Cherian <gcherian@marvell.com>,
	"Zengtao (B)" <prime.zeng@hisilicon.com>,
	Will Deacon <will@kernel.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	James Morse <james.morse@arm.com>,
	Julien Thierry <julien.thierry.kdev@gmail.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>
Subject: [PATCH 09/26] KVM: arm64: vgic-v3: Take cpu_if pointer directly instead of vcpu
Date: Wed, 22 Apr 2020 13:00:33 +0100	[thread overview]
Message-ID: <20200422120050.3693593-10-maz@kernel.org> (raw)
In-Reply-To: <20200422120050.3693593-1-maz@kernel.org>

From: Christoffer Dall <christoffer.dall@arm.com>

If we move the used_lrs field to the version-specific cpu interface
structure, the following functions only operate on the struct
vgic_v3_cpu_if and not the full vcpu:

  __vgic_v3_save_state
  __vgic_v3_restore_state
  __vgic_v3_activate_traps
  __vgic_v3_deactivate_traps
  __vgic_v3_save_aprs
  __vgic_v3_restore_aprs

This is going to be very useful for nested virt, so move the used_lrs
field and change the prototypes and implementations of these functions to
take the cpu_if parameter directly.

No functional change.

Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 arch/arm64/include/asm/kvm_hyp.h | 12 ++++++------
 arch/arm64/kvm/hyp/switch.c      |  8 ++++----
 include/kvm/arm_vgic.h           |  5 ++++-
 virt/kvm/arm/hyp/vgic-v3-sr.c    | 33 ++++++++++----------------------
 virt/kvm/arm/vgic/vgic-v2.c      | 10 +++++-----
 virt/kvm/arm/vgic/vgic-v3.c      | 14 ++++++++------
 virt/kvm/arm/vgic/vgic.c         | 25 ++++++++++++++++--------
 7 files changed, 54 insertions(+), 53 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index dcb63bf941057..f3c3d7645000f 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -55,12 +55,12 @@
 
 int __vgic_v2_perform_cpuif_access(struct kvm_vcpu *vcpu);
 
-void __vgic_v3_save_state(struct kvm_vcpu *vcpu);
-void __vgic_v3_restore_state(struct kvm_vcpu *vcpu);
-void __vgic_v3_activate_traps(struct kvm_vcpu *vcpu);
-void __vgic_v3_deactivate_traps(struct kvm_vcpu *vcpu);
-void __vgic_v3_save_aprs(struct kvm_vcpu *vcpu);
-void __vgic_v3_restore_aprs(struct kvm_vcpu *vcpu);
+void __vgic_v3_save_state(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_restore_state(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_activate_traps(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_deactivate_traps(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_save_aprs(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_restore_aprs(struct vgic_v3_cpu_if *cpu_if);
 int __vgic_v3_perform_cpuif_access(struct kvm_vcpu *vcpu);
 
 void __timer_enable_traps(struct kvm_vcpu *vcpu);
diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c
index d79319038b119..c48c96565f1a7 100644
--- a/arch/arm64/kvm/hyp/switch.c
+++ b/arch/arm64/kvm/hyp/switch.c
@@ -270,8 +270,8 @@ static void __hyp_text __deactivate_vm(struct kvm_vcpu *vcpu)
 static void __hyp_text __hyp_vgic_save_state(struct kvm_vcpu *vcpu)
 {
 	if (static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif)) {
-		__vgic_v3_save_state(vcpu);
-		__vgic_v3_deactivate_traps(vcpu);
+		__vgic_v3_save_state(&vcpu->arch.vgic_cpu.vgic_v3);
+		__vgic_v3_deactivate_traps(&vcpu->arch.vgic_cpu.vgic_v3);
 	}
 }
 
@@ -279,8 +279,8 @@ static void __hyp_text __hyp_vgic_save_state(struct kvm_vcpu *vcpu)
 static void __hyp_text __hyp_vgic_restore_state(struct kvm_vcpu *vcpu)
 {
 	if (static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif)) {
-		__vgic_v3_activate_traps(vcpu);
-		__vgic_v3_restore_state(vcpu);
+		__vgic_v3_activate_traps(&vcpu->arch.vgic_cpu.vgic_v3);
+		__vgic_v3_restore_state(&vcpu->arch.vgic_cpu.vgic_v3);
 	}
 }
 
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 69f4164d64776..a8d8fdcd37230 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -274,6 +274,8 @@ struct vgic_v2_cpu_if {
 	u32		vgic_vmcr;
 	u32		vgic_apr;
 	u32		vgic_lr[VGIC_V2_MAX_LRS];
+
+	unsigned int used_lrs;
 };
 
 struct vgic_v3_cpu_if {
@@ -291,6 +293,8 @@ struct vgic_v3_cpu_if {
 	 * linking the Linux IRQ subsystem and the ITS together.
 	 */
 	struct its_vpe	its_vpe;
+
+	unsigned int used_lrs;
 };
 
 struct vgic_cpu {
@@ -300,7 +304,6 @@ struct vgic_cpu {
 		struct vgic_v3_cpu_if	vgic_v3;
 	};
 
-	unsigned int used_lrs;
 	struct vgic_irq private_irqs[VGIC_NR_PRIVATE_IRQS];
 
 	raw_spinlock_t ap_list_lock;	/* Protects the ap_list */
diff --git a/virt/kvm/arm/hyp/vgic-v3-sr.c b/virt/kvm/arm/hyp/vgic-v3-sr.c
index ccf1fde9836c1..2ea9a0b73fc44 100644
--- a/virt/kvm/arm/hyp/vgic-v3-sr.c
+++ b/virt/kvm/arm/hyp/vgic-v3-sr.c
@@ -194,10 +194,9 @@ static u32 __hyp_text __vgic_v3_read_ap1rn(int n)
 	return val;
 }
 
-void __hyp_text __vgic_v3_save_state(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_save_state(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
-	u64 used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	u64 used_lrs = cpu_if->used_lrs;
 
 	/*
 	 * Make sure stores to the GIC via the memory mapped interface
@@ -230,10 +229,9 @@ void __hyp_text __vgic_v3_save_state(struct kvm_vcpu *vcpu)
 	}
 }
 
-void __hyp_text __vgic_v3_restore_state(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_restore_state(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
-	u64 used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	u64 used_lrs = cpu_if->used_lrs;
 	int i;
 
 	if (used_lrs || cpu_if->its_vpe.its_vm) {
@@ -257,10 +255,8 @@ void __hyp_text __vgic_v3_restore_state(struct kvm_vcpu *vcpu)
 	}
 }
 
-void __hyp_text __vgic_v3_activate_traps(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_activate_traps(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
-
 	/*
 	 * VFIQEn is RES1 if ICC_SRE_EL1.SRE is 1. This causes a
 	 * Group0 interrupt (as generated in GICv2 mode) to be
@@ -306,9 +302,8 @@ void __hyp_text __vgic_v3_activate_traps(struct kvm_vcpu *vcpu)
 		write_gicreg(cpu_if->vgic_hcr, ICH_HCR_EL2);
 }
 
-void __hyp_text __vgic_v3_deactivate_traps(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_deactivate_traps(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
 	u64 val;
 
 	if (!cpu_if->vgic_sre) {
@@ -333,15 +328,11 @@ void __hyp_text __vgic_v3_deactivate_traps(struct kvm_vcpu *vcpu)
 		write_gicreg(0, ICH_HCR_EL2);
 }
 
-void __hyp_text __vgic_v3_save_aprs(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_save_aprs(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if;
 	u64 val;
 	u32 nr_pre_bits;
 
-	vcpu = kern_hyp_va(vcpu);
-	cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
-
 	val = read_gicreg(ICH_VTR_EL2);
 	nr_pre_bits = vtr_to_nr_pre_bits(val);
 
@@ -370,15 +361,11 @@ void __hyp_text __vgic_v3_save_aprs(struct kvm_vcpu *vcpu)
 	}
 }
 
-void __hyp_text __vgic_v3_restore_aprs(struct kvm_vcpu *vcpu)
+void __hyp_text __vgic_v3_restore_aprs(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct vgic_v3_cpu_if *cpu_if;
 	u64 val;
 	u32 nr_pre_bits;
 
-	vcpu = kern_hyp_va(vcpu);
-	cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
-
 	val = read_gicreg(ICH_VTR_EL2);
 	nr_pre_bits = vtr_to_nr_pre_bits(val);
 
@@ -453,7 +440,7 @@ static int __hyp_text __vgic_v3_highest_priority_lr(struct kvm_vcpu *vcpu,
 						    u32 vmcr,
 						    u64 *lr_val)
 {
-	unsigned int used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	unsigned int used_lrs = vcpu->arch.vgic_cpu.vgic_v3.used_lrs;
 	u8 priority = GICv3_IDLE_PRIORITY;
 	int i, lr = -1;
 
@@ -492,7 +479,7 @@ static int __hyp_text __vgic_v3_highest_priority_lr(struct kvm_vcpu *vcpu,
 static int __hyp_text __vgic_v3_find_active_lr(struct kvm_vcpu *vcpu,
 					       int intid, u64 *lr_val)
 {
-	unsigned int used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	unsigned int used_lrs = vcpu->arch.vgic_cpu.vgic_v3.used_lrs;
 	int i;
 
 	for (i = 0; i < used_lrs; i++) {
diff --git a/virt/kvm/arm/vgic/vgic-v2.c b/virt/kvm/arm/vgic/vgic-v2.c
index 621cc168fe3f7..ebf53a4e12963 100644
--- a/virt/kvm/arm/vgic/vgic-v2.c
+++ b/virt/kvm/arm/vgic/vgic-v2.c
@@ -56,7 +56,7 @@ void vgic_v2_fold_lr_state(struct kvm_vcpu *vcpu)
 
 	cpuif->vgic_hcr &= ~GICH_HCR_UIE;
 
-	for (lr = 0; lr < vgic_cpu->used_lrs; lr++) {
+	for (lr = 0; lr < vgic_cpu->vgic_v2.used_lrs; lr++) {
 		u32 val = cpuif->vgic_lr[lr];
 		u32 cpuid, intid = val & GICH_LR_VIRTUALID;
 		struct vgic_irq *irq;
@@ -120,7 +120,7 @@ void vgic_v2_fold_lr_state(struct kvm_vcpu *vcpu)
 		vgic_put_irq(vcpu->kvm, irq);
 	}
 
-	vgic_cpu->used_lrs = 0;
+	cpuif->used_lrs = 0;
 }
 
 /*
@@ -427,7 +427,7 @@ int vgic_v2_probe(const struct gic_kvm_info *info)
 static void save_lrs(struct kvm_vcpu *vcpu, void __iomem *base)
 {
 	struct vgic_v2_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v2;
-	u64 used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	u64 used_lrs = cpu_if->used_lrs;
 	u64 elrsr;
 	int i;
 
@@ -448,7 +448,7 @@ static void save_lrs(struct kvm_vcpu *vcpu, void __iomem *base)
 void vgic_v2_save_state(struct kvm_vcpu *vcpu)
 {
 	void __iomem *base = kvm_vgic_global_state.vctrl_base;
-	u64 used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	u64 used_lrs = vcpu->arch.vgic_cpu.vgic_v2.used_lrs;
 
 	if (!base)
 		return;
@@ -463,7 +463,7 @@ void vgic_v2_restore_state(struct kvm_vcpu *vcpu)
 {
 	struct vgic_v2_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v2;
 	void __iomem *base = kvm_vgic_global_state.vctrl_base;
-	u64 used_lrs = vcpu->arch.vgic_cpu.used_lrs;
+	u64 used_lrs = cpu_if->used_lrs;
 	int i;
 
 	if (!base)
diff --git a/virt/kvm/arm/vgic/vgic-v3.c b/virt/kvm/arm/vgic/vgic-v3.c
index 2c9fc13e2c590..118d044f48ddf 100644
--- a/virt/kvm/arm/vgic/vgic-v3.c
+++ b/virt/kvm/arm/vgic/vgic-v3.c
@@ -39,7 +39,7 @@ void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu)
 
 	cpuif->vgic_hcr &= ~ICH_HCR_UIE;
 
-	for (lr = 0; lr < vgic_cpu->used_lrs; lr++) {
+	for (lr = 0; lr < cpuif->used_lrs; lr++) {
 		u64 val = cpuif->vgic_lr[lr];
 		u32 intid, cpuid;
 		struct vgic_irq *irq;
@@ -111,7 +111,7 @@ void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu)
 		vgic_put_irq(vcpu->kvm, irq);
 	}
 
-	vgic_cpu->used_lrs = 0;
+	cpuif->used_lrs = 0;
 }
 
 /* Requires the irq to be locked already */
@@ -664,10 +664,10 @@ void vgic_v3_load(struct kvm_vcpu *vcpu)
 	if (likely(cpu_if->vgic_sre))
 		kvm_call_hyp(__vgic_v3_write_vmcr, cpu_if->vgic_vmcr);
 
-	kvm_call_hyp(__vgic_v3_restore_aprs, vcpu);
+	kvm_call_hyp(__vgic_v3_restore_aprs, kern_hyp_va(cpu_if));
 
 	if (has_vhe())
-		__vgic_v3_activate_traps(vcpu);
+		__vgic_v3_activate_traps(cpu_if);
 
 	WARN_ON(vgic_v4_load(vcpu));
 }
@@ -682,12 +682,14 @@ void vgic_v3_vmcr_sync(struct kvm_vcpu *vcpu)
 
 void vgic_v3_put(struct kvm_vcpu *vcpu)
 {
+	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
+
 	WARN_ON(vgic_v4_put(vcpu, false));
 
 	vgic_v3_vmcr_sync(vcpu);
 
-	kvm_call_hyp(__vgic_v3_save_aprs, vcpu);
+	kvm_call_hyp(__vgic_v3_save_aprs, kern_hyp_va(cpu_if));
 
 	if (has_vhe())
-		__vgic_v3_deactivate_traps(vcpu);
+		__vgic_v3_deactivate_traps(cpu_if);
 }
diff --git a/virt/kvm/arm/vgic/vgic.c b/virt/kvm/arm/vgic/vgic.c
index 99b02ca730a87..c3643b7f101b7 100644
--- a/virt/kvm/arm/vgic/vgic.c
+++ b/virt/kvm/arm/vgic/vgic.c
@@ -786,6 +786,7 @@ static void vgic_flush_lr_state(struct kvm_vcpu *vcpu)
 	int count;
 	bool multi_sgi;
 	u8 prio = 0xff;
+	int i = 0;
 
 	lockdep_assert_held(&vgic_cpu->ap_list_lock);
 
@@ -827,11 +828,14 @@ static void vgic_flush_lr_state(struct kvm_vcpu *vcpu)
 		}
 	}
 
-	vcpu->arch.vgic_cpu.used_lrs = count;
-
 	/* Nuke remaining LRs */
-	for ( ; count < kvm_vgic_global_state.nr_lr; count++)
-		vgic_clear_lr(vcpu, count);
+	for (i = count ; i < kvm_vgic_global_state.nr_lr; i++)
+		vgic_clear_lr(vcpu, i);
+
+	if (!static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif))
+		vcpu->arch.vgic_cpu.vgic_v2.used_lrs = count;
+	else
+		vcpu->arch.vgic_cpu.vgic_v3.used_lrs = count;
 }
 
 static inline bool can_access_vgic_from_kernel(void)
@@ -849,13 +853,13 @@ static inline void vgic_save_state(struct kvm_vcpu *vcpu)
 	if (!static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif))
 		vgic_v2_save_state(vcpu);
 	else
-		__vgic_v3_save_state(vcpu);
+		__vgic_v3_save_state(&vcpu->arch.vgic_cpu.vgic_v3);
 }
 
 /* Sync back the hardware VGIC state into our emulation after a guest's run. */
 void kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu)
 {
-	struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
+	int used_lrs;
 
 	/* An empty ap_list_head implies used_lrs == 0 */
 	if (list_empty(&vcpu->arch.vgic_cpu.ap_list_head))
@@ -864,7 +868,12 @@ void kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu)
 	if (can_access_vgic_from_kernel())
 		vgic_save_state(vcpu);
 
-	if (vgic_cpu->used_lrs)
+	if (!static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif))
+		used_lrs = vcpu->arch.vgic_cpu.vgic_v2.used_lrs;
+	else
+		used_lrs = vcpu->arch.vgic_cpu.vgic_v3.used_lrs;
+
+	if (used_lrs)
 		vgic_fold_lr_state(vcpu);
 	vgic_prune_ap_list(vcpu);
 }
@@ -874,7 +883,7 @@ static inline void vgic_restore_state(struct kvm_vcpu *vcpu)
 	if (!static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif))
 		vgic_v2_restore_state(vcpu);
 	else
-		__vgic_v3_restore_state(vcpu);
+		__vgic_v3_restore_state(&vcpu->arch.vgic_cpu.vgic_v3);
 }
 
 /* Flush our emulation state into the GIC hardware before entering the guest. */
-- 
2.26.1


  parent reply	other threads:[~2020-04-22 12:01 UTC|newest]

Thread overview: 234+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-22 12:00 [PATCH 00/26] KVM: arm64: Preliminary NV patches Marc Zyngier
2020-04-22 12:00 ` Marc Zyngier
2020-04-22 12:00 ` Marc Zyngier
2020-04-22 12:00 ` [PATCH 01/26] KVM: arm64: Check advertised Stage-2 page size capability Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 13:40   ` Suzuki K Poulose
2020-04-22 13:40     ` Suzuki K Poulose
2020-04-22 13:40     ` Suzuki K Poulose
2020-04-22 14:07     ` Marc Zyngier
2020-04-22 14:07       ` Marc Zyngier
2020-04-22 14:07       ` Marc Zyngier
2020-04-22 14:14       ` Suzuki K Poulose
2020-04-22 14:14         ` Suzuki K Poulose
2020-04-22 14:14         ` Suzuki K Poulose
2020-05-07 11:42   ` Alexandru Elisei
2020-05-07 11:42     ` Alexandru Elisei
2020-05-07 11:42     ` Alexandru Elisei
2020-04-22 12:00 ` [PATCH 02/26] KVM: arm64: Move __load_guest_stage2 to kvm_mmu.h Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 13:51   ` Suzuki K Poulose
2020-04-22 13:51     ` Suzuki K Poulose
2020-04-22 13:51     ` Suzuki K Poulose
2020-04-22 13:59     ` Marc Zyngier
2020-04-22 13:59       ` Marc Zyngier
2020-04-22 13:59       ` Marc Zyngier
2020-04-22 12:00 ` [PATCH 03/26] KVM: arm64: Factor out stage 2 page table data from struct kvm Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-05-05 15:26   ` Andrew Scull
2020-05-05 15:26     ` Andrew Scull
2020-05-05 15:26     ` Andrew Scull
2020-05-05 16:32     ` Marc Zyngier
2020-05-05 16:32       ` Marc Zyngier
2020-05-05 16:32       ` Marc Zyngier
2020-05-05 17:23       ` Andrew Scull
2020-05-05 17:23         ` Andrew Scull
2020-05-05 17:23         ` Andrew Scull
2020-05-05 18:10         ` Marc Zyngier
2020-05-05 18:10           ` Marc Zyngier
2020-05-05 18:10           ` Marc Zyngier
2020-05-05 16:03   ` James Morse
2020-05-05 16:03     ` James Morse
2020-05-05 16:03     ` James Morse
2020-05-05 17:59     ` Marc Zyngier
2020-05-05 17:59       ` Marc Zyngier
2020-05-05 17:59       ` Marc Zyngier
2020-05-06  9:30       ` Marc Zyngier
2020-05-06  9:30         ` Marc Zyngier
2020-05-06  9:30         ` Marc Zyngier
2020-05-11 16:38   ` Alexandru Elisei
2020-05-11 16:38     ` Alexandru Elisei
2020-05-11 16:38     ` Alexandru Elisei
2020-05-12 11:17     ` James Morse
2020-05-12 11:17       ` James Morse
2020-05-12 11:17       ` James Morse
2020-05-12 15:47       ` Alexandru Elisei
2020-05-12 15:47         ` Alexandru Elisei
2020-05-12 15:47         ` Alexandru Elisei
2020-05-12 16:13         ` James Morse
2020-05-12 16:13           ` James Morse
2020-05-12 16:13           ` James Morse
2020-05-12 16:53       ` Alexandru Elisei
2020-05-12 16:53         ` Alexandru Elisei
2020-05-12 16:53         ` Alexandru Elisei
2020-05-27  8:41         ` Marc Zyngier
2020-05-27  8:41           ` Marc Zyngier
2020-05-27  8:41           ` Marc Zyngier
2020-05-27  8:45           ` Alexandru Elisei
2020-05-27  8:45             ` Alexandru Elisei
2020-05-27  8:45             ` Alexandru Elisei
2020-04-22 12:00 ` [PATCH 04/26] arm64: Detect the ARMv8.4 TTL feature Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-27 15:55   ` Suzuki K Poulose
2020-04-27 15:55     ` Suzuki K Poulose
2020-04-27 15:55     ` Suzuki K Poulose
2020-04-22 12:00 ` [PATCH 05/26] arm64: Document SW reserved PTE/PMD bits in Stage-2 descriptors Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-05-05 15:59   ` Andrew Scull
2020-05-05 15:59     ` Andrew Scull
2020-05-05 15:59     ` Andrew Scull
2020-05-06  9:39     ` Marc Zyngier
2020-05-06  9:39       ` Marc Zyngier
2020-05-06  9:39       ` Marc Zyngier
2020-05-06 10:11       ` Andrew Scull
2020-05-06 10:11         ` Andrew Scull
2020-05-06 10:11         ` Andrew Scull
2020-04-22 12:00 ` [PATCH 06/26] arm64: Add level-hinted TLB invalidation helper Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-05-05 17:16   ` Andrew Scull
2020-05-05 17:16     ` Andrew Scull
2020-05-05 17:16     ` Andrew Scull
2020-05-06  8:05     ` Marc Zyngier
2020-05-06  8:05       ` Marc Zyngier
2020-05-06  8:05       ` Marc Zyngier
2020-04-22 12:00 ` [PATCH 07/26] KVM: arm64: Add a level hint to __kvm_tlb_flush_vmid_ipa Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-05-07 15:08   ` Andrew Scull
2020-05-07 15:08     ` Andrew Scull
2020-05-07 15:08     ` Andrew Scull
2020-05-07 15:13     ` Marc Zyngier
2020-05-07 15:13       ` Marc Zyngier
2020-05-07 15:13       ` Marc Zyngier
2020-04-22 12:00 ` [PATCH 08/26] KVM: arm64: Use TTL hint in when invalidating stage-2 translations Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-05-07 15:13   ` Andrew Scull
2020-05-07 15:13     ` Andrew Scull
2020-05-07 15:13     ` Andrew Scull
2020-05-12 12:04     ` James Morse
2020-05-12 12:04       ` James Morse
2020-05-12 12:04       ` James Morse
2020-05-13  9:06       ` Andrew Scull
2020-05-13  9:06         ` Andrew Scull
2020-05-13  9:06         ` Andrew Scull
2020-05-27  8:59         ` Marc Zyngier
2020-05-27  8:59           ` Marc Zyngier
2020-05-27  8:59           ` Marc Zyngier
2020-05-12 17:26   ` James Morse
2020-05-12 17:26     ` James Morse
2020-05-12 17:26     ` James Morse
2020-04-22 12:00 ` Marc Zyngier [this message]
2020-04-22 12:00   ` [PATCH 09/26] KVM: arm64: vgic-v3: Take cpu_if pointer directly instead of vcpu Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-05-07 16:26   ` James Morse
2020-05-07 16:26     ` James Morse
2020-05-07 16:26     ` James Morse
2020-05-08 12:20     ` Marc Zyngier
2020-05-08 12:20       ` Marc Zyngier
2020-05-08 12:20       ` Marc Zyngier
2020-04-22 12:00 ` [PATCH 10/26] KVM: arm64: Refactor vcpu_{read,write}_sys_reg Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-05-26 16:28   ` James Morse
2020-05-26 16:28     ` James Morse
2020-05-26 16:28     ` James Morse
2020-05-27 10:04     ` Marc Zyngier
2020-05-27 10:04       ` Marc Zyngier
2020-05-27 10:04       ` Marc Zyngier
2020-04-22 12:00 ` [PATCH 11/26] KVM: arm64: Add missing reset handlers for PMU emulation Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-05-26 16:29   ` James Morse
2020-05-26 16:29     ` James Morse
2020-05-26 16:29     ` James Morse
2020-04-22 12:00 ` [PATCH 12/26] KVM: arm64: Move sysreg reset check to boot time Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00 ` [PATCH 13/26] KVM: arm64: Introduce accessor for ctxt->sys_reg Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00 ` [PATCH 14/26] KVM: arm64: hyp: Use ctxt_sys_reg/__vcpu_sys_reg instead of raw sys_regs access Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00 ` [PATCH 15/26] KVM: arm64: sve: Use __vcpu_sys_reg() " Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00 ` [PATCH 16/26] KVM: arm64: pauth: Use ctxt_sys_reg() " Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00 ` [PATCH 17/26] KVM: arm64: debug: " Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00 ` [PATCH 18/26] KVM: arm64: Don't use empty structures as CPU reset state Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-24  4:07   ` Zenghui Yu
2020-04-24  4:07     ` Zenghui Yu
2020-04-24  4:07     ` Zenghui Yu
2020-04-24  7:45     ` Marc Zyngier
2020-04-24  7:45       ` Marc Zyngier
2020-04-24  7:45       ` Marc Zyngier
2020-04-28  1:34       ` Zengtao (B)
2020-04-28  1:34         ` Zengtao (B)
2020-04-28  1:34         ` Zengtao (B)
2020-04-22 12:00 ` [PATCH 19/26] KVM: arm64: Make struct kvm_regs userspace-only Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-05-26 16:29   ` James Morse
2020-05-26 16:29     ` James Morse
2020-05-26 16:29     ` James Morse
2020-05-27 10:22     ` Marc Zyngier
2020-05-27 10:22       ` Marc Zyngier
2020-05-27 10:22       ` Marc Zyngier
2020-04-22 12:00 ` [PATCH 20/26] KVM: arm64: Move ELR_EL1 to the system register array Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-05-26 16:29   ` James Morse
2020-05-26 16:29     ` James Morse
2020-05-26 16:29     ` James Morse
2020-05-27 10:36     ` Marc Zyngier
2020-05-27 10:36       ` Marc Zyngier
2020-05-27 10:36       ` Marc Zyngier
2020-04-22 12:00 ` [PATCH 21/26] KVM: arm64: Move SP_EL1 " Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-05-26 16:29   ` James Morse
2020-05-26 16:29     ` James Morse
2020-05-26 16:29     ` James Morse
2020-04-22 12:00 ` [PATCH 22/26] KVM: arm64: Disintegrate SPSR array Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-05-26 16:30   ` James Morse
2020-05-26 16:30     ` James Morse
2020-05-26 16:30     ` James Morse
2020-04-22 12:00 ` [PATCH 23/26] KVM: arm64: Move SPSR_EL1 to the system register array Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-05-26 16:30   ` James Morse
2020-05-26 16:30     ` James Morse
2020-05-26 16:30     ` James Morse
2020-04-22 12:00 ` [PATCH 24/26] KVM: arm64: timers: Rename kvm_timer_sync_hwstate to kvm_timer_sync_user Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00 ` [PATCH 25/26] KVM: arm64: timers: Move timer registers to the sys_regs file Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00 ` [PATCH 26/26] KVM: arm64: Parametrize exception entry with a target EL Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-04-22 12:00   ` Marc Zyngier
2020-05-19 10:44   ` Mark Rutland
2020-05-19 10:44     ` Mark Rutland
2020-05-19 10:44     ` Mark Rutland
2020-05-27  9:34     ` Marc Zyngier
2020-05-27  9:34       ` Marc Zyngier
2020-05-27  9:34       ` Marc Zyngier
2020-05-27 14:41       ` Mark Rutland
2020-05-27 14:41         ` Mark Rutland
2020-05-27 14:41         ` Mark Rutland

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