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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: Andre Przywara <andre.przywara@arm.com>,
	Christoffer Dall <christoffer.dall@arm.com>,
	Jintack Lim <jintack@cs.columbia.edu>,
	Haibo Xu <haibo.xu@linaro.org>, James Morse <james.morse@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	kernel-team@android.com
Subject: [PATCH v4 59/66] KVM: arm64: nv: Move nested vgic state into the sysreg file
Date: Mon, 10 May 2021 17:59:13 +0100	[thread overview]
Message-ID: <20210510165920.1913477-60-maz@kernel.org> (raw)
In-Reply-To: <20210510165920.1913477-1-maz@kernel.org>

The vgic nested state needs to be accessible from the VNCR page, and
thus needs to be part of the normal sysreg file. Let's move it there.

Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 arch/arm64/include/asm/kvm_host.h    |  9 +++
 arch/arm64/kvm/sys_regs.c            | 53 +++++++++++------
 arch/arm64/kvm/vgic/vgic-v3-nested.c | 88 ++++++++++++++--------------
 arch/arm64/kvm/vgic/vgic-v3.c        | 17 ++++--
 arch/arm64/kvm/vgic/vgic.h           | 10 ++++
 include/kvm/arm_vgic.h               |  7 ---
 6 files changed, 110 insertions(+), 74 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 815ae39f7857..3d4543b0c116 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -297,6 +297,15 @@ enum vcpu_sysreg {
 	VNCR(CNTP_CVAL_EL0),
 	VNCR(CNTP_CTL_EL0),
 
+	VNCR(ICH_LR0_EL2),
+	ICH_LR15_EL2 = ICH_LR0_EL2 + 15,
+	VNCR(ICH_AP0R0_EL2),
+	ICH_AP0R3_EL2 = ICH_AP0R0_EL2 + 3,
+	VNCR(ICH_AP1R0_EL2),
+	ICH_AP1R3_EL2 = ICH_AP1R0_EL2 + 3,
+	VNCR(ICH_HCR_EL2),
+	VNCR(ICH_VMCR_EL2),
+
 	NR_SYS_REGS	/* Nothing after this line! */
 };
 
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 4db1a9333afa..084230f6b993 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1796,17 +1796,17 @@ static bool access_gic_apr(struct kvm_vcpu *vcpu,
 			   struct sys_reg_params *p,
 			   const struct sys_reg_desc *r)
 {
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.nested_vgic_v3;
-	u32 index, *base;
+	u64 *base;
+	u8 index;
 
 	index = r->Op2;
 	if (r->CRm == 8)
-		base = cpu_if->vgic_ap0r;
+		base = __ctxt_sys_reg(&vcpu->arch.ctxt, ICH_AP0R0_EL2);
 	else
-		base = cpu_if->vgic_ap1r;
+		base = __ctxt_sys_reg(&vcpu->arch.ctxt, ICH_AP1R0_EL2);
 
 	if (p->is_write)
-		base[index] = p->regval;
+		base[index] = lower_32_bits(p->regval);
 	else
 		p->regval = base[index];
 
@@ -1817,12 +1817,10 @@ static bool access_gic_hcr(struct kvm_vcpu *vcpu,
 			   struct sys_reg_params *p,
 			   const struct sys_reg_desc *r)
 {
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.nested_vgic_v3;
-
 	if (p->is_write)
-		cpu_if->vgic_hcr = p->regval;
+		__vcpu_sys_reg(vcpu, ICH_HCR_EL2) = lower_32_bits(p->regval);
 	else
-		p->regval = cpu_if->vgic_hcr;
+		p->regval = __vcpu_sys_reg(vcpu, ICH_HCR_EL2);
 
 	return true;
 }
@@ -1879,12 +1877,19 @@ static bool access_gic_vmcr(struct kvm_vcpu *vcpu,
 			    struct sys_reg_params *p,
 			    const struct sys_reg_desc *r)
 {
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.nested_vgic_v3;
-
 	if (p->is_write)
-		cpu_if->vgic_vmcr = p->regval;
+		__vcpu_sys_reg(vcpu, ICH_VMCR_EL2) = (p->regval	&
+						      (ICH_VMCR_ENG0_MASK	|
+						       ICH_VMCR_ENG1_MASK	|
+						       ICH_VMCR_PMR_MASK	|
+						       ICH_VMCR_BPR0_MASK	|
+						       ICH_VMCR_BPR1_MASK	|
+						       ICH_VMCR_EOIM_MASK	|
+						       ICH_VMCR_CBPR_MASK	|
+						       ICH_VMCR_FIQ_EN_MASK	|
+						       ICH_VMCR_ACK_CTL_MASK));
 	else
-		p->regval = cpu_if->vgic_vmcr;
+		p->regval = __vcpu_sys_reg(vcpu, ICH_VMCR_EL2);
 
 	return true;
 }
@@ -1893,17 +1898,29 @@ static bool access_gic_lr(struct kvm_vcpu *vcpu,
 			  struct sys_reg_params *p,
 			  const struct sys_reg_desc *r)
 {
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.nested_vgic_v3;
 	u32 index;
+	u64 *base;
 
+	base = __ctxt_sys_reg(&vcpu->arch.ctxt, ICH_LR0_EL2);
 	index = p->Op2;
 	if (p->CRm == 13)
 		index += 8;
 
-	if (p->is_write)
-		cpu_if->vgic_lr[index] = p->regval;
-	else
-		p->regval = cpu_if->vgic_lr[index];
+	if (p->is_write) {
+		u64 mask = (ICH_LR_VIRTUAL_ID_MASK	|
+			    ICH_LR_GROUP		|
+			    ICH_LR_HW			|
+			    ICH_LR_STATE);
+
+		if (p->regval & ICH_LR_HW)
+			mask |= ICH_LR_PHYS_ID_MASK;
+		else
+			mask |= ICH_LR_EOI;
+
+		base[index] = p->regval & mask;
+	} else {
+		p->regval = base[index];
+	}
 
 	return true;
 }
diff --git a/arch/arm64/kvm/vgic/vgic-v3-nested.c b/arch/arm64/kvm/vgic/vgic-v3-nested.c
index 94b1edb67011..51f7a521e829 100644
--- a/arch/arm64/kvm/vgic/vgic-v3-nested.c
+++ b/arch/arm64/kvm/vgic/vgic-v3-nested.c
@@ -16,11 +16,6 @@
 #define CREATE_TRACE_POINTS
 #include "vgic-nested-trace.h"
 
-static inline struct vgic_v3_cpu_if *vcpu_nested_if(struct kvm_vcpu *vcpu)
-{
-	return &vcpu->arch.vgic_cpu.nested_vgic_v3;
-}
-
 static inline struct vgic_v3_cpu_if *vcpu_shadow_if(struct kvm_vcpu *vcpu)
 {
 	return &vcpu->arch.vgic_cpu.shadow_vgic_v3;
@@ -33,12 +28,11 @@ static inline bool lr_triggers_eoi(u64 lr)
 
 u16 vgic_v3_get_eisr(struct kvm_vcpu *vcpu)
 {
-	struct vgic_v3_cpu_if *cpu_if = vcpu_nested_if(vcpu);
 	u16 reg = 0;
 	int i;
 
 	for (i = 0; i < kvm_vgic_global_state.nr_lr; i++) {
-		if (lr_triggers_eoi(cpu_if->vgic_lr[i]))
+		if (lr_triggers_eoi(__vcpu_sys_reg(vcpu, ICH_LRN(i))))
 			reg |= BIT(i);
 	}
 
@@ -47,12 +41,11 @@ u16 vgic_v3_get_eisr(struct kvm_vcpu *vcpu)
 
 u16 vgic_v3_get_elrsr(struct kvm_vcpu *vcpu)
 {
-	struct vgic_v3_cpu_if *cpu_if = vcpu_nested_if(vcpu);
 	u16 reg = 0;
 	int i;
 
 	for (i = 0; i < kvm_vgic_global_state.nr_lr; i++) {
-		if (!(cpu_if->vgic_lr[i] & ICH_LR_STATE))
+		if (!(__vcpu_sys_reg(vcpu, ICH_LRN(i)) & ICH_LR_STATE))
 			reg |= BIT(i);
 	}
 
@@ -61,14 +54,13 @@ u16 vgic_v3_get_elrsr(struct kvm_vcpu *vcpu)
 
 u64 vgic_v3_get_misr(struct kvm_vcpu *vcpu)
 {
-	struct vgic_v3_cpu_if *cpu_if = vcpu_nested_if(vcpu);
 	int nr_lr = kvm_vgic_global_state.nr_lr;
 	u64 reg = 0;
 
 	if (vgic_v3_get_eisr(vcpu))
 		reg |= ICH_MISR_EOI;
 
-	if (cpu_if->vgic_hcr & ICH_HCR_UIE) {
+	if (__vcpu_sys_reg(vcpu, ICH_HCR_EL2) & ICH_HCR_UIE) {
 		int used_lrs;
 
 		used_lrs = nr_lr - hweight16(vgic_v3_get_elrsr(vcpu));
@@ -87,13 +79,12 @@ u64 vgic_v3_get_misr(struct kvm_vcpu *vcpu)
  */
 static void vgic_v3_create_shadow_lr(struct kvm_vcpu *vcpu)
 {
-	struct vgic_v3_cpu_if *cpu_if = vcpu_nested_if(vcpu);
 	struct vgic_v3_cpu_if *s_cpu_if = vcpu_shadow_if(vcpu);
 	struct vgic_irq *irq;
 	int i, used_lrs = 0;
 
 	for (i = 0; i < kvm_vgic_global_state.nr_lr; i++) {
-		u64 lr = cpu_if->vgic_lr[i];
+		u64 lr = __vcpu_sys_reg(vcpu, ICH_LRN(i));
 		int l1_irq;
 
 		if (!(lr & ICH_LR_HW))
@@ -123,36 +114,20 @@ static void vgic_v3_create_shadow_lr(struct kvm_vcpu *vcpu)
 	}
 
 	trace_vgic_create_shadow_lrs(vcpu, kvm_vgic_global_state.nr_lr,
-				     s_cpu_if->vgic_lr, cpu_if->vgic_lr);
+				     s_cpu_if->vgic_lr,
+				     __ctxt_sys_reg(&vcpu->arch.ctxt, ICH_LR0_EL2));
 
 	s_cpu_if->used_lrs = used_lrs;
 }
 
-/*
- * Change the shadow HWIRQ field back to the virtual value before copying over
- * the entire shadow struct to the nested state.
- */
-static void vgic_v3_fixup_shadow_lr_state(struct kvm_vcpu *vcpu)
-{
-	struct vgic_v3_cpu_if *cpu_if = vcpu_nested_if(vcpu);
-	struct vgic_v3_cpu_if *s_cpu_if = vcpu_shadow_if(vcpu);
-	int lr;
-
-	for (lr = 0; lr < kvm_vgic_global_state.nr_lr; lr++) {
-		s_cpu_if->vgic_lr[lr] &= ~ICH_LR_PHYS_ID_MASK;
-		s_cpu_if->vgic_lr[lr] |= cpu_if->vgic_lr[lr] & ICH_LR_PHYS_ID_MASK;
-	}
-}
-
 void vgic_v3_sync_nested(struct kvm_vcpu *vcpu)
 {
-	struct vgic_v3_cpu_if *cpu_if = vcpu_nested_if(vcpu);
 	struct vgic_v3_cpu_if *s_cpu_if = vcpu_shadow_if(vcpu);
 	struct vgic_irq *irq;
 	int i;
 
 	for (i = 0; i < s_cpu_if->used_lrs; i++) {
-		u64 lr = cpu_if->vgic_lr[i];
+		u64 lr = __vcpu_sys_reg(vcpu, ICH_LRN(i));
 		int l1_irq;
 
 		if (!(lr & ICH_LR_HW) || !(lr & ICH_LR_STATE))
@@ -178,14 +153,27 @@ void vgic_v3_sync_nested(struct kvm_vcpu *vcpu)
 	}
 }
 
+void vgic_v3_create_shadow_state(struct kvm_vcpu *vcpu)
+{
+	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.shadow_vgic_v3;
+	int i;
+
+	cpu_if->vgic_hcr = __vcpu_sys_reg(vcpu, ICH_HCR_EL2);
+	cpu_if->vgic_vmcr = __vcpu_sys_reg(vcpu, ICH_VMCR_EL2);
+
+	for (i = 0; i < 4; i++) {
+		cpu_if->vgic_ap0r[i] = __vcpu_sys_reg(vcpu, ICH_AP0RN(i));
+		cpu_if->vgic_ap1r[i] = __vcpu_sys_reg(vcpu, ICH_AP1RN(i));
+	}
+
+	vgic_v3_create_shadow_lr(vcpu);
+}
+
 void vgic_v3_load_nested(struct kvm_vcpu *vcpu)
 {
-	struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
 	struct vgic_irq *irq;
 	unsigned long flags;
 
-	vgic_cpu->shadow_vgic_v3 = vgic_cpu->nested_vgic_v3;
-	vgic_v3_create_shadow_lr(vcpu);
 	__vgic_v3_restore_state(vcpu_shadow_if(vcpu));
 
 	irq = vgic_get_irq(vcpu->kvm, vcpu, vcpu->kvm->arch.vgic.maint_irq);
@@ -199,26 +187,40 @@ void vgic_v3_load_nested(struct kvm_vcpu *vcpu)
 
 void vgic_v3_put_nested(struct kvm_vcpu *vcpu)
 {
-	struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
+	struct vgic_v3_cpu_if *s_cpu_if = vcpu_shadow_if(vcpu);
+	int i;
 
-	__vgic_v3_save_state(vcpu_shadow_if(vcpu));
+	__vgic_v3_save_state(s_cpu_if);
 
-	trace_vgic_put_nested(vcpu, kvm_vgic_global_state.nr_lr,
-			      vcpu_shadow_if(vcpu)->vgic_lr);
+	trace_vgic_put_nested(vcpu, kvm_vgic_global_state.nr_lr, s_cpu_if->vgic_lr);
 
 	/*
 	 * Translate the shadow state HW fields back to the virtual ones
 	 * before copying the shadow struct back to the nested one.
 	 */
-	vgic_v3_fixup_shadow_lr_state(vcpu);
-	vgic_cpu->nested_vgic_v3 = vgic_cpu->shadow_vgic_v3;
+	__vcpu_sys_reg(vcpu, ICH_HCR_EL2) = s_cpu_if->vgic_hcr;
+	__vcpu_sys_reg(vcpu, ICH_VMCR_EL2) = s_cpu_if->vgic_vmcr;
+
+	for (i = 0; i < 4; i++) {
+		__vcpu_sys_reg(vcpu, ICH_AP0RN(i)) = s_cpu_if->vgic_ap0r[i];
+		__vcpu_sys_reg(vcpu, ICH_AP1RN(i)) = s_cpu_if->vgic_ap1r[i];
+	}
+
+	for (i = 0; i < kvm_vgic_global_state.nr_lr; i++) {
+		u64 val = __vcpu_sys_reg(vcpu, ICH_LRN(i));
+
+		val &= ~ICH_LR_STATE;
+		val |= s_cpu_if->vgic_lr[i] & ICH_LR_STATE;
+
+		__vcpu_sys_reg(vcpu, ICH_LRN(i)) = val;
+	}
+
 	irq_set_irqchip_state(kvm_vgic_global_state.maint_irq,
 			      IRQCHIP_STATE_ACTIVE, false);
 }
 
 void vgic_v3_handle_nested_maint_irq(struct kvm_vcpu *vcpu)
 {
-	struct vgic_v3_cpu_if *cpu_if = vcpu_nested_if(vcpu);
 	bool state;
 
 	/*
@@ -230,7 +232,7 @@ void vgic_v3_handle_nested_maint_irq(struct kvm_vcpu *vcpu)
 	if (!vgic_state_is_nested(vcpu))
 		return;
 
-	state  = cpu_if->vgic_hcr & ICH_HCR_EN;
+	state  = __vcpu_sys_reg(vcpu, ICH_HCR_EL2) & ICH_HCR_EN;
 	state &= vgic_v3_get_misr(vcpu);
 
 	kvm_vgic_inject_irq(vcpu->kvm, vcpu->vcpu_id,
diff --git a/arch/arm64/kvm/vgic/vgic-v3.c b/arch/arm64/kvm/vgic/vgic-v3.c
index 1c8601bb810a..12c5c6ac92e2 100644
--- a/arch/arm64/kvm/vgic/vgic-v3.c
+++ b/arch/arm64/kvm/vgic/vgic-v3.c
@@ -294,10 +294,11 @@ void vgic_v3_enable(struct kvm_vcpu *vcpu)
 				     ICC_SRE_EL1_SRE);
 		/*
 		 * If nesting is allowed, force GICv3 onto the nested
-		 * guests as well.
+		 * guests as well by setting the shadow state to the
+		 * same value.
 		 */
 		if (nested_virt_in_use(vcpu))
-			vcpu->arch.vgic_cpu.nested_vgic_v3.vgic_sre = vgic_v3->vgic_sre;
+			vcpu->arch.vgic_cpu.shadow_vgic_v3.vgic_sre = vgic_v3->vgic_sre;
 		vcpu->arch.vgic_cpu.pendbaser = INITIAL_PENDBASER_VALUE;
 	} else {
 		vgic_v3->vgic_sre = 0;
@@ -713,11 +714,15 @@ void vgic_v3_load(struct kvm_vcpu *vcpu)
 	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
 
 	/*
-	 * vgic_v3_load_nested only affects the LRs in the shadow
-	 * state, so it is fine to pass the nested state around.
+	 * If the vgic is in nested state, populate the shadow state
+	 * from the guest's nested state. As vgic_v3_load_nested()
+	 * will only load LRs, let's deal with the rest of the state
+	 * here as if it was a non-nested state. Cunning.
 	 */
-	if (vgic_state_is_nested(vcpu))
-		cpu_if = &vcpu->arch.vgic_cpu.nested_vgic_v3;
+	if (vgic_state_is_nested(vcpu)) {
+		vgic_v3_create_shadow_state(vcpu);
+		cpu_if = &vcpu->arch.vgic_cpu.shadow_vgic_v3;
+	}
 
 	/*
 	 * If dealing with a GICv2 emulation on GICv3, VMCR_EL2.VFIQen
diff --git a/arch/arm64/kvm/vgic/vgic.h b/arch/arm64/kvm/vgic/vgic.h
index dc1f3d1657ee..a1de98efe67f 100644
--- a/arch/arm64/kvm/vgic/vgic.h
+++ b/arch/arm64/kvm/vgic/vgic.h
@@ -320,4 +320,14 @@ void vgic_v4_teardown(struct kvm *kvm);
 void vgic_v4_configure_vsgis(struct kvm *kvm);
 void vgic_v4_get_vlpi_state(struct vgic_irq *irq, bool *val);
 
+void vgic_v3_sync_nested(struct kvm_vcpu *vcpu);
+void vgic_v3_create_shadow_state(struct kvm_vcpu *vcpu);
+void vgic_v3_load_nested(struct kvm_vcpu *vcpu);
+void vgic_v3_put_nested(struct kvm_vcpu *vcpu);
+void vgic_v3_handle_nested_maint_irq(struct kvm_vcpu *vcpu);
+
+#define ICH_LRN(n)	(ICH_LR0_EL2 + (n))
+#define ICH_AP0RN(n)	(ICH_AP0R0_EL2 + (n))
+#define ICH_AP1RN(n)	(ICH_AP1R0_EL2 + (n))
+
 #endif
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 5ef477cc6862..1a9f61ed4c22 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -309,9 +309,6 @@ struct vgic_cpu {
 
 	struct vgic_irq private_irqs[VGIC_NR_PRIVATE_IRQS];
 
-	/* CPU vif control registers for the virtual GICH interface */
-	struct vgic_v3_cpu_if	nested_vgic_v3;
-
 	/*
 	 * The shadow vif control register loaded to the hardware when
 	 * running a nested L2 guest with the virtual IMO/FMO bit set.
@@ -375,10 +372,6 @@ void kvm_vgic_load(struct kvm_vcpu *vcpu);
 void kvm_vgic_put(struct kvm_vcpu *vcpu);
 void kvm_vgic_vmcr_sync(struct kvm_vcpu *vcpu);
 
-void vgic_v3_sync_nested(struct kvm_vcpu *vcpu);
-void vgic_v3_load_nested(struct kvm_vcpu *vcpu);
-void vgic_v3_put_nested(struct kvm_vcpu *vcpu);
-void vgic_v3_handle_nested_maint_irq(struct kvm_vcpu *vcpu);
 u16 vgic_v3_get_eisr(struct kvm_vcpu *vcpu);
 u16 vgic_v3_get_elrsr(struct kvm_vcpu *vcpu);
 u64 vgic_v3_get_misr(struct kvm_vcpu *vcpu);
-- 
2.29.2


  parent reply	other threads:[~2021-05-10 17:28 UTC|newest]

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-10 16:58 [PATCH v4 00/66] KVM: arm64: ARMv8.3/8.4 Nested Virtualization support Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 01/66] arm64: Add ARM64_HAS_NESTED_VIRT cpufeature Marc Zyngier
2021-05-20 13:32   ` Zenghui Yu
2021-05-10 16:58 ` [PATCH v4 02/66] KVM: arm64: nv: Introduce nested virtualization VCPU feature Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 03/66] KVM: arm64: nv: Reset VCPU to EL2 registers if VCPU nested virt is set Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 04/66] KVM: arm64: nv: Allow userspace to set PSR_MODE_EL2x Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 05/66] KVM: arm64: nv: Add EL2 system registers to vcpu context Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 06/66] KVM: arm64: nv: Add nested virt VCPU primitives for vEL2 VCPU state Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 07/66] KVM: arm64: nv: Handle HCR_EL2.NV system register traps Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 08/66] KVM: arm64: nv: Reset VMPIDR_EL2 and VPIDR_EL2 to sane values Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 09/66] KVM: arm64: nv: Support virtual EL2 exceptions Marc Zyngier
2021-05-20 12:55   ` Zenghui Yu
2021-05-10 16:58 ` [PATCH v4 10/66] KVM: arm64: nv: Inject HVC exceptions to the virtual EL2 Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 11/66] KVM: arm64: nv: Handle trapped ERET from " Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 12/66] KVM: arm64: nv: Add non-VHE-EL2->EL1 translation helpers Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 13/66] KVM: arm64: nv: Handle virtual EL2 registers in vcpu_read/write_sys_reg() Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 14/66] KVM: arm64: nv: Handle SPSR_EL2 specially Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 15/66] KVM: arm64: nv: Handle HCR_EL2.E2H specially Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 16/66] KVM: arm64: nv: Save/Restore vEL2 sysregs Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 17/66] KVM: arm64: nv: Emulate PSTATE.M for a guest hypervisor Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 18/66] KVM: arm64: nv: Trap EL1 VM register accesses in virtual EL2 Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 19/66] KVM: arm64: nv: Trap SPSR_EL1, ELR_EL1 and VBAR_EL1 from " Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 20/66] KVM: arm64: nv: Trap CPACR_EL1 access in " Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 21/66] KVM: arm64: nv: Handle PSCI call via smc from the guest Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 22/66] KVM: arm64: nv: Respect virtual HCR_EL2.TWX setting Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 23/66] KVM: arm64: nv: Respect virtual CPTR_EL2.{TFP,FPEN} settings Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 24/66] KVM: arm64: nv: Respect the virtual HCR_EL2.NV bit setting Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 25/66] KVM: arm64: nv: Respect virtual HCR_EL2.TVM and TRVM settings Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 26/66] KVM: arm64: nv: Respect the virtual HCR_EL2.NV1 bit setting Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 27/66] KVM: arm64: nv: Emulate EL12 register accesses from the virtual EL2 Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 28/66] KVM: arm64: nv: Forward debug traps to the nested guest Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 29/66] KVM: arm64: nv: Configure HCR_EL2 for nested virtualization Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 30/66] KVM: arm64: nv: Only toggle cache for virtual EL2 when SCTLR_EL2 changes Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 31/66] KVM: arm64: nv: Filter out unsupported features from ID regs Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 32/66] KVM: arm64: nv: Hide RAS from nested guests Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 33/66] KVM: arm64: nv: Support multiple nested Stage-2 mmu structures Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 34/66] KVM: arm64: nv: Implement nested Stage-2 page table walk logic Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 35/66] KVM: arm64: nv: Handle shadow stage 2 page faults Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 36/66] KVM: arm64: nv: Restrict S2 RD/WR permissions to match the guest's Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 37/66] KVM: arm64: nv: Unmap/flush shadow stage 2 page tables Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 38/66] KVM: arm64: nv: Introduce sys_reg_desc.forward_trap Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 39/66] KVM: arm64: nv: Set a handler for the system instruction traps Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 40/66] KVM: arm64: nv: Trap and emulate AT instructions from virtual EL2 Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 41/66] KVM: arm64: nv: Trap and emulate TLBI " Marc Zyngier
2021-07-14 16:40   ` Chase Conklin
2021-11-29 18:12     ` Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 42/66] KVM: arm64: nv: Fold guest's HCR_EL2 configuration into the host's Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 43/66] KVM: arm64: nv: arch_timer: Support hyp timer emulation Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 44/66] KVM: arm64: nv: Add handling of EL2-specific timer registers Marc Zyngier
2021-05-10 16:58 ` [PATCH v4 45/66] KVM: arm64: nv: Load timer before the GIC Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 46/66] KVM: arm64: nv: Nested GICv3 Support Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 47/66] KVM: arm64: nv: Don't load the GICv4 context on entering a nested guest Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 48/66] KVM: arm64: nv: vgic: Emulate the HW bit in software Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 49/66] KVM: arm64: nv: vgic: Allow userland to set VGIC maintenance IRQ Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 50/66] KVM: arm64: nv: Implement maintenance interrupt forwarding Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 51/66] KVM: arm64: nv: Add nested GICv3 tracepoints Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 52/66] KVM: arm64: nv: Allow userspace to request KVM_ARM_VCPU_NESTED_VIRT Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 53/66] KVM: arm64: nv: Add handling of ARMv8.4-TTL TLB invalidation Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 54/66] KVM: arm64: nv: Invalidate TLBs based on shadow S2 TTL-like information Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 55/66] KVM: arm64: Allow populating S2 SW bits Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 56/66] KVM: arm64: nv: Tag shadow S2 entries with nested level Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 57/66] KVM: arm64: nv: Add include containing the VNCR_EL2 offsets Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 58/66] KVM: arm64: Map VNCR-capable registers to a separate page Marc Zyngier
2021-05-10 16:59 ` Marc Zyngier [this message]
2021-05-10 16:59 ` [PATCH v4 60/66] KVM: arm64: Add ARMv8.4 Enhanced Nested Virt cpufeature Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 61/66] KVM: arm64: nv: Synchronize PSTATE early on exit Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 62/66] KVM: arm64: nv: Sync nested timer state with ARMv8.4 Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 63/66] KVM: arm64: nv: Allocate VNCR page when required Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 64/66] KVM: arm64: nv: Enable ARMv8.4-NV support Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 65/66] KVM: arm64: nv: Fast-track 'InHost' exception returns Marc Zyngier
2021-05-10 16:59 ` [PATCH v4 66/66] KVM: arm64: nv: Fast-track EL1 TLBIs for VHE guests Marc Zyngier
2021-06-03  7:07 ` [PATCH v4 00/66] KVM: arm64: ARMv8.3/8.4 Nested Virtualization support Jamie Iles
2021-06-03  8:39   ` Marc Zyngier
2021-06-03 11:08     ` Marc Zyngier
2021-06-07  9:59     ` Jamie Iles

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