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From: Alexandru Elisei <alexandru.elisei@arm.com>
To: Marc Zyngier <marc.zyngier@arm.com>,
	linux-arm-kernel@lists.infradead.org,
	kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org
Cc: Andre Przywara <andre.przywara@arm.com>,
	Dave Martin <Dave.Martin@arm.com>
Subject: Re: [PATCH 39/59] KVM: arm64: nv: Move last_vcpu_ran to be per s2 mmu
Date: Fri, 5 Jul 2019 16:28:36 +0100
Message-ID: <a38cce1c-cb56-c41f-d99b-f5a2be7e058c@arm.com> (raw)
In-Reply-To: <20190621093843.220980-40-marc.zyngier@arm.com>

On 6/21/19 10:38 AM, Marc Zyngier wrote:
> last_vcpu_ran has to be per s2 mmu now that we can have multiple S2
> per VM. Let's take this opportunity to perform some cleanup.
>
> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
> ---
>  arch/arm/include/asm/kvm_host.h   |  6 +++---
>  arch/arm/include/asm/kvm_mmu.h    |  2 +-
>  arch/arm64/include/asm/kvm_host.h |  6 +++---
>  arch/arm64/include/asm/kvm_mmu.h  |  2 +-
>  arch/arm64/kvm/nested.c           | 13 ++++++-------
>  virt/kvm/arm/arm.c                | 22 ++++------------------
>  virt/kvm/arm/mmu.c                | 26 ++++++++++++++++++++------
>  7 files changed, 38 insertions(+), 39 deletions(-)
>
> diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
> index b821eb2383ad..cc761610e41e 100644
> --- a/arch/arm/include/asm/kvm_host.h
> +++ b/arch/arm/include/asm/kvm_host.h
> @@ -63,15 +63,15 @@ struct kvm_s2_mmu {
>  	pgd_t *pgd;
>  	phys_addr_t pgd_phys;
>  
> +	/* The last vcpu id that ran on each physical CPU */
> +	int __percpu *last_vcpu_ran;
> +
>  	struct kvm *kvm;
>  };
>  
>  struct kvm_arch {
>  	struct kvm_s2_mmu mmu;
>  
> -	/* The last vcpu id that ran on each physical CPU */
> -	int __percpu *last_vcpu_ran;
> -
>  	/* Stage-2 page table */
>  	pgd_t *pgd;
>  	phys_addr_t pgd_phys;
> diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h
> index afabf1fd1d17..7a6e9008ed45 100644
> --- a/arch/arm/include/asm/kvm_mmu.h
> +++ b/arch/arm/include/asm/kvm_mmu.h
> @@ -52,7 +52,7 @@ int create_hyp_exec_mappings(phys_addr_t phys_addr, size_t size,
>  void free_hyp_pgds(void);
>  
>  void stage2_unmap_vm(struct kvm *kvm);
> -int kvm_alloc_stage2_pgd(struct kvm_s2_mmu *mmu);
> +int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu);
>  void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu);
>  int kvm_phys_addr_ioremap(struct kvm *kvm, phys_addr_t guest_ipa,
>  			  phys_addr_t pa, unsigned long size, bool writable);
> diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
> index cc238de170d2..b71a7a237f95 100644
> --- a/arch/arm64/include/asm/kvm_host.h
> +++ b/arch/arm64/include/asm/kvm_host.h
> @@ -104,6 +104,9 @@ struct kvm_s2_mmu {
>  	 * >0: Somebody is actively using this.
>  	 */
>  	atomic_t refcnt;
> +
> +	/* The last vcpu id that ran on each physical CPU */
> +	int __percpu *last_vcpu_ran;
>  };
>  
>  static inline bool kvm_s2_mmu_valid(struct kvm_s2_mmu *mmu)
> @@ -124,9 +127,6 @@ struct kvm_arch {
>  	/* VTCR_EL2 value for this VM */
>  	u64    vtcr;
>  
> -	/* The last vcpu id that ran on each physical CPU */
> -	int __percpu *last_vcpu_ran;
> -
>  	/* The maximum number of vCPUs depends on the used GIC model */
>  	int max_vcpus;
>  
> diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
> index f4c5ac5eb95f..53103607065a 100644
> --- a/arch/arm64/include/asm/kvm_mmu.h
> +++ b/arch/arm64/include/asm/kvm_mmu.h
> @@ -169,7 +169,7 @@ void free_hyp_pgds(void);
>  
>  void kvm_unmap_stage2_range(struct kvm_s2_mmu *mmu, phys_addr_t start, u64 size);
>  void stage2_unmap_vm(struct kvm *kvm);
> -int kvm_alloc_stage2_pgd(struct kvm_s2_mmu *mmu);
> +int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu);
>  void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu);
>  int kvm_phys_addr_ioremap(struct kvm *kvm, phys_addr_t guest_ipa,
>  			  phys_addr_t pa, unsigned long size, bool writable);
> diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c
> index 8880033fb6e0..09afafbdc8fe 100644
> --- a/arch/arm64/kvm/nested.c
> +++ b/arch/arm64/kvm/nested.c
> @@ -52,18 +52,17 @@ int kvm_vcpu_init_nested(struct kvm_vcpu *vcpu)
>  			 GFP_KERNEL | __GFP_ZERO);
>  
>  	if (tmp) {
> -		if (tmp != kvm->arch.nested_mmus)
> +		if (tmp != kvm->arch.nested_mmus) {
>  			kfree(kvm->arch.nested_mmus);
> +			kvm->arch.nested_mmus = NULL;
> +			kvm->arch.nested_mmus_size = 0;
> +		}
>  
> -		tmp[num_mmus - 1].kvm = kvm;
> -		atomic_set(&tmp[num_mmus - 1].refcnt, 0);
> -		ret = kvm_alloc_stage2_pgd(&tmp[num_mmus - 1]);
> +		ret = kvm_init_stage2_mmu(kvm, &tmp[num_mmus - 1]);
>  		if (ret)
>  			goto out;
>  
> -		tmp[num_mmus - 2].kvm = kvm;
> -		atomic_set(&tmp[num_mmus - 2].refcnt, 0);
> -		ret = kvm_alloc_stage2_pgd(&tmp[num_mmus - 2]);
> +		ret = kvm_init_stage2_mmu(kvm, &tmp[num_mmus - 2]);
>  		if (ret) {
>  			kvm_free_stage2_pgd(&tmp[num_mmus - 1]);
>  			goto out;
> diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
> index bcca27d5c481..e8b584b79847 100644
> --- a/virt/kvm/arm/arm.c
> +++ b/virt/kvm/arm/arm.c
> @@ -99,29 +99,21 @@ void kvm_arch_check_processor_compat(void *rtn)
>  	*(int *)rtn = 0;
>  }
>  
> -
>  /**
>   * kvm_arch_init_vm - initializes a VM data structure
>   * @kvm:	pointer to the KVM struct
>   */
>  int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
>  {
> -	int ret, cpu;
> +	int ret;
>  
>  	ret = kvm_arm_setup_stage2(kvm, type);
>  	if (ret)
>  		return ret;
>  
> -	kvm->arch.last_vcpu_ran = alloc_percpu(typeof(*kvm->arch.last_vcpu_ran));
> -	if (!kvm->arch.last_vcpu_ran)
> -		return -ENOMEM;
> -
> -	for_each_possible_cpu(cpu)
> -		*per_cpu_ptr(kvm->arch.last_vcpu_ran, cpu) = -1;
> -
> -	ret = kvm_alloc_stage2_pgd(&kvm->arch.mmu);
> +	ret = kvm_init_stage2_mmu(kvm, &kvm->arch.mmu);
>  	if (ret)
> -		goto out_fail_alloc;
> +		return ret;
>  
>  	/* Mark the initial VMID generation invalid */
>  	kvm->arch.mmu.vmid.vmid_gen = 0;

More context:

 int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 {
-    int ret, cpu;
+    int ret;
 
     ret = kvm_arm_setup_stage2(kvm, type);
     if (ret)
         return ret;
 
-    kvm->arch.last_vcpu_ran = alloc_percpu(typeof(*kvm->arch.last_vcpu_ran));
-    if (!kvm->arch.last_vcpu_ran)
-        return -ENOMEM;
-
-    for_each_possible_cpu(cpu)
-        *per_cpu_ptr(kvm->arch.last_vcpu_ran, cpu) = -1;
-
-    ret = kvm_alloc_stage2_pgd(&kvm->arch.mmu);
+    ret = kvm_init_stage2_mmu(kvm, &kvm->arch.mmu);
     if (ret)
-        goto out_fail_alloc;
+        return ret;
 
     /* Mark the initial VMID generation invalid */
     kvm->arch.mmu.vmid.vmid_gen = 0;
     kvm->arch.mmu.kvm = kvm;
 

kvm_init_stage2_mmu already sets vmid_gen and kvm.

> @@ -142,9 +134,6 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
>  	return ret;
>  out_free_stage2_pgd:
>  	kvm_free_stage2_pgd(&kvm->arch.mmu);
> -out_fail_alloc:
> -	free_percpu(kvm->arch.last_vcpu_ran);
> -	kvm->arch.last_vcpu_ran = NULL;
>  	return ret;
>  }
>  
> @@ -174,9 +163,6 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
>  
>  	kvm_vgic_destroy(kvm);
>  
> -	free_percpu(kvm->arch.last_vcpu_ran);
> -	kvm->arch.last_vcpu_ran = NULL;
> -
>  	for (i = 0; i < KVM_MAX_VCPUS; ++i) {
>  		if (kvm->vcpus[i]) {
>  			kvm_arch_vcpu_free(kvm->vcpus[i]);
> @@ -359,7 +345,7 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
>  	if (nested_virt_in_use(vcpu))
>  		kvm_vcpu_load_hw_mmu(vcpu);
>  
> -	last_ran = this_cpu_ptr(vcpu->kvm->arch.last_vcpu_ran);
> +	last_ran = this_cpu_ptr(vcpu->arch.hw_mmu->last_vcpu_ran);
>  	cpu_data = this_cpu_ptr(&kvm_host_data);
>  
>  	/*
> diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
> index 94d400e7af57..6a7cba077bce 100644
> --- a/virt/kvm/arm/mmu.c
> +++ b/virt/kvm/arm/mmu.c
> @@ -903,8 +903,9 @@ int create_hyp_exec_mappings(phys_addr_t phys_addr, size_t size,
>  }
>  
>  /**
> - * kvm_alloc_stage2_pgd - allocate level-1 table for stage-2 translation.
> - * @mmu:	The stage 2 mmu struct pointer
> + * kvm_init_stage2_mmu - Initialise a S2 MMU strucrure
> + * @kvm:	The pointer to the KVM structure
> + * @mmu:	The pointer to the s2 MMU structure
>   *
>   * Allocates only the stage-2 HW PGD level table(s) of size defined by
>   * stage2_pgd_size(mmu->kvm).
> @@ -912,10 +913,11 @@ int create_hyp_exec_mappings(phys_addr_t phys_addr, size_t size,
>   * Note we don't need locking here as this is only called when the VM is
>   * created, which can only be done once.
>   */
> -int kvm_alloc_stage2_pgd(struct kvm_s2_mmu *mmu)
> +int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu)
>  {
>  	phys_addr_t pgd_phys;
>  	pgd_t *pgd;
> +	int cpu;
>  
>  	if (mmu->pgd != NULL) {
>  		kvm_err("kvm_arch already initialized?\n");
> @@ -923,18 +925,28 @@ int kvm_alloc_stage2_pgd(struct kvm_s2_mmu *mmu)
>  	}
>  
>  	/* Allocate the HW PGD, making sure that each page gets its own refcount */
> -	pgd = alloc_pages_exact(stage2_pgd_size(mmu->kvm), GFP_KERNEL | __GFP_ZERO);
> +	pgd = alloc_pages_exact(stage2_pgd_size(kvm), GFP_KERNEL | __GFP_ZERO);
>  	if (!pgd)
>  		return -ENOMEM;
>  
>  	pgd_phys = virt_to_phys(pgd);
> -	if (WARN_ON(pgd_phys & ~kvm_vttbr_baddr_mask(mmu->kvm)))
> +	if (WARN_ON(pgd_phys & ~kvm_vttbr_baddr_mask(kvm)))
>  		return -EINVAL;
>  
> +	mmu->last_vcpu_ran = alloc_percpu(typeof(*mmu->last_vcpu_ran));
> +	if (!mmu->last_vcpu_ran) {
> +		free_pages_exact(pgd, stage2_pgd_size(kvm));
> +		return -ENOMEM;
> +	}
> +
> +	mmu->kvm = kvm;
>  	mmu->pgd = pgd;
>  	mmu->pgd_phys = pgd_phys;
>  	mmu->vmid.vmid_gen = 0;
>  
> +	for_each_possible_cpu(cpu)
> +		*per_cpu_ptr(mmu->last_vcpu_ran, cpu) = -1;
> +
>  	kvm_init_s2_mmu(mmu);
>  
>  	return 0;
> @@ -1021,8 +1033,10 @@ void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu)
>  	spin_unlock(&kvm->mmu_lock);
>  
>  	/* Free the HW pgd, one page at a time */

last_vcpu_ran too.

> -	if (pgd)
> +	if (pgd) {
>  		free_pages_exact(pgd, stage2_pgd_size(kvm));
> +		free_percpu(mmu->last_vcpu_ran);
> +	}
>  }
>  
>  static pud_t *stage2_get_pud(struct kvm_s2_mmu *mmu, struct kvm_mmu_memory_cache *cache,

  parent reply index

Thread overview: 174+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-21  9:37 [PATCH 00/59] KVM: arm64: ARMv8.3 Nested Virtualization support Marc Zyngier
2019-06-21  9:37 ` [PATCH 01/59] KVM: arm64: Migrate _elx sysreg accessors to msr_s/mrs_s Marc Zyngier
2019-06-24 11:16   ` Dave Martin
2019-06-24 12:59   ` Alexandru Elisei
2019-07-03 12:32     ` Marc Zyngier
2019-06-21  9:37 ` [PATCH 02/59] KVM: arm64: Move __load_guest_stage2 to kvm_mmu.h Marc Zyngier
2019-06-24 11:19   ` Dave Martin
2019-07-03  9:30     ` Marc Zyngier
2019-07-03 16:13       ` Dave Martin
2019-06-21  9:37 ` [PATCH 03/59] arm64: Add ARM64_HAS_NESTED_VIRT cpufeature Marc Zyngier
2019-06-21 13:08   ` Julien Thierry
2019-06-21 13:22     ` Marc Zyngier
2019-06-21 13:44   ` Suzuki K Poulose
2019-06-24 11:24   ` Dave Martin
2019-06-21  9:37 ` [PATCH 04/59] KVM: arm64: nv: Introduce nested virtualization VCPU feature Marc Zyngier
2019-06-21 13:08   ` Julien Thierry
2019-06-24 11:28   ` Dave Martin
2019-07-03 11:53     ` Marc Zyngier
2019-07-03 16:27       ` Dave Martin
2019-06-24 11:43   ` Dave Martin
2019-07-03 11:56     ` Marc Zyngier
2019-07-03 16:24       ` Dave Martin
2019-06-21  9:37 ` [PATCH 05/59] KVM: arm64: nv: Reset VCPU to EL2 registers if VCPU nested virt is set Marc Zyngier
2019-06-24 10:19   ` Suzuki K Poulose
2019-06-24 11:38   ` Dave Martin
2019-06-21  9:37 ` [PATCH 06/59] KVM: arm64: nv: Allow userspace to set PSR_MODE_EL2x Marc Zyngier
2019-06-21 13:24   ` Julien Thierry
2019-06-21 13:50     ` Marc Zyngier
2019-06-24 12:48       ` Dave Martin
2019-07-03  9:21         ` Marc Zyngier
2019-07-04 10:00           ` Dave Martin
2019-06-21  9:37 ` [PATCH 07/59] KVM: arm64: nv: Add EL2 system registers to vcpu context Marc Zyngier
2019-06-24 12:54   ` Dave Martin
2019-07-03 12:20     ` Marc Zyngier
2019-07-03 16:31       ` Dave Martin
2019-06-24 15:47   ` Alexandru Elisei
2019-07-03 13:20     ` Marc Zyngier
2019-07-03 16:01       ` Marc Zyngier
2019-07-01 16:36   ` Suzuki K Poulose
2019-06-21  9:37 ` [PATCH 08/59] KVM: arm64: nv: Reset VMPIDR_EL2 and VPIDR_EL2 to sane values Marc Zyngier
2019-06-24 12:59   ` Dave Martin
2019-06-21  9:37 ` [PATCH 09/59] KVM: arm64: nv: Add nested virt VCPU primitives for vEL2 VCPU state Marc Zyngier
2019-06-24 13:08   ` Dave Martin
2019-06-21  9:37 ` [PATCH 10/59] KVM: arm64: nv: Support virtual EL2 exceptions Marc Zyngier
2019-07-08 13:56   ` Steven Price
2019-06-21  9:37 ` [PATCH 11/59] KVM: arm64: nv: Inject HVC exceptions to the virtual EL2 Marc Zyngier
2019-06-25 13:13   ` Alexandru Elisei
2019-07-03 14:16     ` Marc Zyngier
2019-07-30 14:08     ` Alexandru Elisei
2019-06-21  9:37 ` [PATCH 12/59] KVM: arm64: nv: Handle trapped ERET from " Marc Zyngier
2019-07-02 12:00   ` Alexandru Elisei
2019-06-21  9:37 ` [PATCH 13/59] KVM: arm64: nv: Handle virtual EL2 registers in vcpu_read/write_sys_reg() Marc Zyngier
2019-06-24 12:42   ` Julien Thierry
2019-06-25 14:02     ` Alexandru Elisei
2019-07-03 12:15     ` Marc Zyngier
2019-07-03 15:21       ` Julien Thierry
2019-06-25 15:18   ` Alexandru Elisei
2019-07-01  9:58     ` Alexandru Elisei
2019-07-03 15:59     ` Marc Zyngier
2019-07-03 16:32       ` Alexandru Elisei
2019-07-04 14:39         ` Marc Zyngier
2019-06-26 15:04   ` Alexandru Elisei
2019-07-04 15:05     ` Marc Zyngier
2019-07-01 12:10   ` Alexandru Elisei
2019-06-21  9:37 ` [PATCH 14/59] KVM: arm64: nv: Handle SPSR_EL2 specially Marc Zyngier
2019-06-21  9:37 ` [PATCH 15/59] KVM: arm64: nv: Refactor vcpu_{read,write}_sys_reg Marc Zyngier
2019-06-24 15:07   ` Julien Thierry
2019-07-03 13:09     ` Marc Zyngier
2019-06-27  9:21   ` Alexandru Elisei
2019-07-04 15:15     ` Marc Zyngier
2019-06-21  9:38 ` [PATCH 16/59] KVM: arm64: nv: Save/Restore vEL2 sysregs Marc Zyngier
2019-06-25  8:48   ` Julien Thierry
2019-07-03 13:42     ` Marc Zyngier
2019-07-01 12:09   ` Alexandru Elisei
2019-08-21 11:57   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 17/59] KVM: arm64: nv: Emulate PSTATE.M for a guest hypervisor Marc Zyngier
2019-06-21  9:38 ` [PATCH 18/59] KVM: arm64: nv: Trap EL1 VM register accesses in virtual EL2 Marc Zyngier
2019-07-01 16:12   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 19/59] KVM: arm64: nv: Trap SPSR_EL1, ELR_EL1 and VBAR_EL1 from " Marc Zyngier
2019-06-21  9:38 ` [PATCH 20/59] KVM: arm64: nv: Trap CPACR_EL1 access in " Marc Zyngier
2019-07-01 16:40   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 21/59] KVM: arm64: nv: Set a handler for the system instruction traps Marc Zyngier
2019-06-25 12:55   ` Julien Thierry
2019-07-03 14:15     ` Marc Zyngier
2019-06-21  9:38 ` [PATCH 22/59] KVM: arm64: nv: Handle PSCI call via smc from the guest Marc Zyngier
2019-06-21  9:38 ` [PATCH 23/59] KVM: arm64: nv: Respect virtual HCR_EL2.TWX setting Marc Zyngier
2019-06-25 14:19   ` Julien Thierry
2019-07-02 12:54     ` Alexandru Elisei
2019-07-03 14:18     ` Marc Zyngier
2019-06-21  9:38 ` [PATCH 24/59] KVM: arm64: nv: Respect virtual CPTR_EL2.TFP setting Marc Zyngier
2019-06-21  9:38 ` [PATCH 25/59] KVM: arm64: nv: Don't expose SVE to nested guests Marc Zyngier
2019-06-21  9:38 ` [PATCH 26/59] KVM: arm64: nv: Respect the virtual HCR_EL2.NV bit setting Marc Zyngier
2019-06-26  5:31   ` Julien Thierry
2019-07-03 16:31     ` Marc Zyngier
2019-06-21  9:38 ` [PATCH 27/59] KVM: arm64: nv: Respect virtual HCR_EL2.TVM and TRVM settings Marc Zyngier
2019-06-26  6:55   ` Julien Thierry
2019-07-04 14:57     ` Marc Zyngier
2019-06-21  9:38 ` [PATCH 28/59] KVM: arm64: nv: Respect the virtual HCR_EL2.NV1 bit setting Marc Zyngier
2019-06-26  7:23   ` Julien Thierry
2019-07-02 16:32   ` Alexandru Elisei
2019-07-03  9:10     ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 29/59] KVM: arm64: nv: Emulate EL12 register accesses from the virtual EL2 Marc Zyngier
2019-07-03  9:16   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 30/59] KVM: arm64: nv: Configure HCR_EL2 for nested virtualization Marc Zyngier
2019-06-21  9:38 ` [PATCH 31/59] KVM: arm64: nv: Only toggle cache for virtual EL2 when SCTLR_EL2 changes Marc Zyngier
2019-06-21  9:38 ` [PATCH 32/59] KVM: arm64: nv: Hide RAS from nested guests Marc Zyngier
2019-07-03 13:59   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 33/59] KVM: arm64: nv: Pretend we only support larger-than-host page sizes Marc Zyngier
2019-07-03 14:13   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 34/59] KVM: arm/arm64: nv: Factor out stage 2 page table data from struct kvm Marc Zyngier
2019-07-03 15:52   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 35/59] KVM: arm/arm64: nv: Support multiple nested stage 2 mmu structures Marc Zyngier
2019-06-25 12:19   ` Alexandru Elisei
2019-07-03 13:47     ` Marc Zyngier
2019-06-27 13:15   ` Julien Thierry
2019-07-04 15:51   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 36/59] KVM: arm64: nv: Implement nested Stage-2 page table walk logic Marc Zyngier
2019-06-21  9:38 ` [PATCH 37/59] KVM: arm64: nv: Handle shadow stage 2 page faults Marc Zyngier
2019-07-05 14:28   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 38/59] KVM: arm64: nv: Unmap/flush shadow stage 2 page tables Marc Zyngier
2019-07-01  8:03   ` Julien Thierry
2019-06-21  9:38 ` [PATCH 39/59] KVM: arm64: nv: Move last_vcpu_ran to be per s2 mmu Marc Zyngier
2019-07-01  9:10   ` Julien Thierry
2019-07-05 15:28   ` Alexandru Elisei [this message]
2019-06-21  9:38 ` [PATCH 40/59] KVM: arm64: nv: Don't always start an S2 MMU search from the beginning Marc Zyngier
2019-07-09  9:59   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 41/59] KVM: arm64: nv: Introduce sys_reg_desc.forward_trap Marc Zyngier
2019-06-21  9:38 ` [PATCH 42/59] KVM: arm64: nv: Rework the system instruction emulation framework Marc Zyngier
2019-06-21  9:38 ` [PATCH 43/59] KVM: arm64: nv: Trap and emulate AT instructions from virtual EL2 Marc Zyngier
2019-07-01 15:45   ` Julien Thierry
2019-07-09 13:20   ` Alexandru Elisei
2019-07-18 12:13     ` Tomasz Nowicki
     [not found]       ` <6537c8d2-3bda-788e-8861-b70971a625cb@arm.com>
2019-07-18 12:59         ` Tomasz Nowicki
2019-07-24 10:25   ` Tomasz Nowicki
2019-07-24 12:39     ` Marc Zyngier
2019-07-24 13:56       ` Tomasz Nowicki
2019-06-21  9:38 ` [PATCH 44/59] KVM: arm64: nv: Trap and emulate TLBI " Marc Zyngier
2019-07-02 12:37   ` Julien Thierry
2019-07-10 10:15   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 45/59] KVM: arm64: nv: Handle traps for timer _EL02 and _EL2 sysregs accessors Marc Zyngier
2019-06-21  9:38 ` [PATCH 46/59] KVM: arm64: nv: arch_timer: Support hyp timer emulation Marc Zyngier
2019-07-10 16:23   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 47/59] KVM: arm64: nv: Propagate CNTVOFF_EL2 to the virtual EL1 timer Marc Zyngier
2019-08-08  9:34   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 48/59] KVM: arm64: nv: Load timer before the GIC Marc Zyngier
2019-07-11 13:17   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 49/59] KVM: arm64: nv: vgic-v3: Take cpu_if pointer directly instead of vcpu Marc Zyngier
2019-06-21  9:38 ` [PATCH 50/59] KVM: arm64: nv: Nested GICv3 Support Marc Zyngier
2019-07-16 11:41   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 51/59] KVM: arm64: nv: vgic: Emulate the HW bit in software Marc Zyngier
2019-06-21  9:38 ` [PATCH 52/59] KVM: arm64: nv: vgic: Allow userland to set VGIC maintenance IRQ Marc Zyngier
2019-07-04  7:38   ` Julien Thierry
2019-07-04  9:01     ` Andre Przywara
2019-07-04  9:04       ` Julien Thierry
2019-06-21  9:38 ` [PATCH 53/59] KVM: arm64: nv: Implement maintenance interrupt forwarding Marc Zyngier
2019-07-04  8:06   ` Julien Thierry
2019-07-16 16:35   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 54/59] KVM: arm64: nv: Add nested GICv3 tracepoints Marc Zyngier
2019-06-21  9:38 ` [PATCH 55/59] arm64: KVM: nv: Add handling of EL2-specific timer registers Marc Zyngier
2019-07-11 12:35   ` Alexandru Elisei
2019-07-17 10:19   ` Alexandru Elisei
2019-06-21  9:38 ` [PATCH 56/59] arm64: KVM: nv: Honor SCTLR_EL2.SPAN on entering vEL2 Marc Zyngier
2019-06-21  9:38 ` [PATCH 57/59] arm64: KVM: nv: Handle SCTLR_EL2 RES0/RES1 bits Marc Zyngier
2019-06-21  9:38 ` [PATCH 58/59] arm64: KVM: nv: Restrict S2 RD/WR permissions to match the guest's Marc Zyngier
2019-06-21  9:38 ` [PATCH 59/59] arm64: KVM: nv: Allow userspace to request KVM_ARM_VCPU_NESTED_VIRT Marc Zyngier
     [not found] ` <CANW9uyssDm_0ysC_pnvhHRrnsmFZik+3_ENmFz7L2GCmtH09fw@mail.gmail.com>
2019-06-21 11:21   ` [PATCH 00/59] KVM: arm64: ARMv8.3 Nested Virtualization support Marc Zyngier
2019-08-02 10:11 ` Alexandru Elisei
2019-08-02 10:30   ` Andrew Jones
2019-08-09 10:01   ` Alexandru Elisei
2019-08-09 11:44     ` Andrew Jones
2019-08-09 12:00       ` Alexandru Elisei
2019-08-09 13:00         ` Andrew Jones
2019-08-22 11:57     ` Alexandru Elisei
2019-08-22 15:32       ` Alexandru Elisei

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