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From: Eric Auger <eric.auger@redhat.com>
To: eric.auger.pro@gmail.com, eric.auger@redhat.com,
	linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
	kvmarm@lists.cs.columbia.edu, maz@kernel.org, drjones@redhat.com,
	alexandru.elisei@arm.com
Cc: shuah@kernel.org, pbonzini@redhat.com
Subject: [PATCH v5 4/8] docs: kvm: devices/arm-vgic-v3: enhance KVM_DEV_ARM_VGIC_CTRL_INIT doc
Date: Sun,  4 Apr 2021 19:22:39 +0200	[thread overview]
Message-ID: <20210404172243.504309-5-eric.auger@redhat.com> (raw)
In-Reply-To: <20210404172243.504309-1-eric.auger@redhat.com>

kvm_arch_vcpu_precreate() returns -EBUSY if the vgic is
already initialized. So let's document that KVM_DEV_ARM_VGIC_CTRL_INIT
must be called after all vcpu creations.

Signed-off-by: Eric Auger <eric.auger@redhat.com>

---

v1 -> v2:
- Must be called after all vcpu creations ->
  Must be called after all VCPUs have been created as per
  Alexandru's suggestion
---
 Documentation/virt/kvm/devices/arm-vgic-v3.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/virt/kvm/devices/arm-vgic-v3.rst b/Documentation/virt/kvm/devices/arm-vgic-v3.rst
index 5dd3bff51978..51e5e5762571 100644
--- a/Documentation/virt/kvm/devices/arm-vgic-v3.rst
+++ b/Documentation/virt/kvm/devices/arm-vgic-v3.rst
@@ -228,7 +228,7 @@ Groups:
 
     KVM_DEV_ARM_VGIC_CTRL_INIT
       request the initialization of the VGIC, no additional parameter in
-      kvm_device_attr.addr.
+      kvm_device_attr.addr. Must be called after all VCPUs have been created.
     KVM_DEV_ARM_VGIC_SAVE_PENDING_TABLES
       save all LPI pending bits into guest RAM pending tables.
 
-- 
2.26.3

_______________________________________________
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kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm

WARNING: multiple messages have this Message-ID (diff)
From: Eric Auger <eric.auger@redhat.com>
To: eric.auger.pro@gmail.com, eric.auger@redhat.com,
	linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
	kvmarm@lists.cs.columbia.edu, maz@kernel.org, drjones@redhat.com,
	alexandru.elisei@arm.com
Cc: james.morse@arm.com, suzuki.poulose@arm.com, shuah@kernel.org,
	pbonzini@redhat.com
Subject: [PATCH v5 4/8] docs: kvm: devices/arm-vgic-v3: enhance KVM_DEV_ARM_VGIC_CTRL_INIT doc
Date: Sun,  4 Apr 2021 19:22:39 +0200	[thread overview]
Message-ID: <20210404172243.504309-5-eric.auger@redhat.com> (raw)
In-Reply-To: <20210404172243.504309-1-eric.auger@redhat.com>

kvm_arch_vcpu_precreate() returns -EBUSY if the vgic is
already initialized. So let's document that KVM_DEV_ARM_VGIC_CTRL_INIT
must be called after all vcpu creations.

Signed-off-by: Eric Auger <eric.auger@redhat.com>

---

v1 -> v2:
- Must be called after all vcpu creations ->
  Must be called after all VCPUs have been created as per
  Alexandru's suggestion
---
 Documentation/virt/kvm/devices/arm-vgic-v3.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/virt/kvm/devices/arm-vgic-v3.rst b/Documentation/virt/kvm/devices/arm-vgic-v3.rst
index 5dd3bff51978..51e5e5762571 100644
--- a/Documentation/virt/kvm/devices/arm-vgic-v3.rst
+++ b/Documentation/virt/kvm/devices/arm-vgic-v3.rst
@@ -228,7 +228,7 @@ Groups:
 
     KVM_DEV_ARM_VGIC_CTRL_INIT
       request the initialization of the VGIC, no additional parameter in
-      kvm_device_attr.addr.
+      kvm_device_attr.addr. Must be called after all VCPUs have been created.
     KVM_DEV_ARM_VGIC_SAVE_PENDING_TABLES
       save all LPI pending bits into guest RAM pending tables.
 
-- 
2.26.3


  parent reply	other threads:[~2021-04-04 17:23 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-04 17:22 [PATCH v5 0/8] KVM/ARM: Some vgic fixes and init sequence KVM selftests Eric Auger
2021-04-04 17:22 ` Eric Auger
2021-04-04 17:22 ` [PATCH v5 1/8] KVM: arm64: Fix KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION read Eric Auger
2021-04-04 17:22   ` Eric Auger
2021-04-04 17:22 ` [PATCH v5 2/8] KVM: arm64: vgic-v3: Fix error handling in vgic_v3_set_redist_base() Eric Auger
2021-04-04 17:22   ` Eric Auger
2021-04-04 17:22 ` [PATCH v5 3/8] KVM: arm/arm64: vgic: Reset base address on kvm_vgic_dist_destroy() Eric Auger
2021-04-04 17:22   ` Eric Auger
2021-04-04 17:22 ` Eric Auger [this message]
2021-04-04 17:22   ` [PATCH v5 4/8] docs: kvm: devices/arm-vgic-v3: enhance KVM_DEV_ARM_VGIC_CTRL_INIT doc Eric Auger
2021-04-04 17:22 ` [PATCH v5 5/8] KVM: arm64: Simplify argument passing to vgic_uaccess_[read|write] Eric Auger
2021-04-04 17:22   ` Eric Auger
2021-04-04 17:22 ` [PATCH v5 6/8] kvm: arm64: vgic-v3: Introduce vgic_v3_free_redist_region() Eric Auger
2021-04-04 17:22   ` Eric Auger
2021-04-04 17:22 ` [PATCH v5 7/8] KVM: arm64: vgic-v3: Expose GICR_TYPER.Last for userspace Eric Auger
2021-04-04 17:22   ` Eric Auger
2021-04-05 10:10   ` Marc Zyngier
2021-04-05 10:10     ` Marc Zyngier
2021-04-05 16:27     ` Auger Eric
2021-04-05 16:27       ` Auger Eric
2021-04-04 17:22 ` [PATCH v5 8/8] KVM: selftests: aarch64/vgic-v3 init sequence tests Eric Auger
2021-04-04 17:22   ` Eric Auger
2021-04-05 10:12 ` [PATCH v5 0/8] KVM/ARM: Some vgic fixes and init sequence KVM selftests Marc Zyngier
2021-04-05 10:12   ` Marc Zyngier
2021-04-05 16:30   ` Auger Eric
2021-04-05 16:30     ` Auger Eric

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