From: Gavin Shan <gshan@redhat.com>
To: kvmarm@lists.cs.columbia.edu
Cc: maz@kernel.org, linux-kernel@vger.kernel.org, eauger@redhat.com,
shan.gavin@gmail.com, Jonathan.Cameron@huawei.com,
pbonzini@redhat.com, vkuznets@redhat.com, will@kernel.org,
Oliver Upton <oupton@google.com>,
James Morse <james.morse@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Shannon Zhao <shannon.zhaosl@gmail.com>
Subject: Re: [PATCH v6 00/18] Support SDEI Virtualization
Date: Sun, 3 Apr 2022 23:47:07 +0800 [thread overview]
Message-ID: <a3bf5b44-0ab8-fd85-5557-6c496fd68bc1@redhat.com> (raw)
In-Reply-To: <20220403153911.12332-1-gshan@redhat.com>
On 4/3/22 11:38 PM, Gavin Shan wrote:
> This series intends to virtualize Software Delegated Exception Interface
> (SDEI), which is defined by DEN0054C (v1.1). It allows the hypervisor to
> deliver NMI-alike SDEI event to guest and it's needed by Async PF to
> deliver page-not-present notification from hypervisor to guest. The code
> and the required qemu changes can be found from:
>
> https://developer.arm.com/documentation/den0054/c
> https://github.com/gwshan/linux ("kvm/arm64_sdei")
> https://github.com/gwshan/qemu ("kvm/arm64_sdei")
>
> The design is quite strightforward by following the specification. The
> (SDEI) events are classified into the shared and private ones according
> to their scope. The shared event is system or VM scoped, but the private
> event is vcpu scoped. This implementation doesn't support the shared
> event because all the needed events are private. Besides, the migration
> isn't supported by implementation and it's something to be supported
> in future.
>
> There are several objects (data structures) introduced to help on the
> event registration, enablement, disablement, unregistration, reset,
> delivery and handling.
>
> * kvm_sdei_exposed_event
> The event which are defined and exposed by KVM. The event can't
> be registered until it's exposed. Besides, all the information
> in this event can't be changed after it's exposed.
>
> * kvm_sdei_event
> The events are created based on the exposed events. Their states
> are changed when hypercalls are received or they are delivered
> to guest for handling.
>
> * kvm_sdei_vcpu_context
> The vcpu context helps to handle events. The interrupted context
> is saved before the event handler is executed, and restored after
> the event handler is to finish.
>
> * kvm_sdei_vcpu
> Place holder for all objects for one particular VCPU.
>
> The patches are organized as below:
>
> PATCH[01-02] Preparatory work to extend smccc_get_argx() and refactor
> hypercall routing mechanism
> PATCH[03] Adds SDEI virtualization infrastructure
> PATCH[04-16] Supports various SDEI hypercalls and event handling
> PATCH[17] Exposes SDEI capability
> PATCH[18] Adds SDEI selftest case
>
> The previous revisions can be found:
>
> v5: https://lore.kernel.org/kvmarm/20220322080710.51727-1-gshan@redhat.com/
> v4: https://lore.kernel.org/kvmarm/20210815001352.81927-1-gshan@redhat.com/
> v3: https://lore.kernel.org/kvmarm/20210507083124.43347-1-gshan@redhat.com/
> v2: https://lore.kernel.org/kvmarm/20210209032733.99996-1-gshan@redhat.com/
> v1: https://lore.kernel.org/kvmarm/20200817100531.83045-1-gshan@redhat.com/
>
I'm explicitly copying Oliver, James, Mark and Shannon to avoid resending this series.
It seems they have been skipped even I explicitly copied them by 'git send-email --cc=<email-addr>'.
[...]
Thanks,
Gavin
next prev parent reply other threads:[~2022-04-03 15:47 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-03 15:38 [PATCH v6 00/18] Support SDEI Virtualization Gavin Shan
2022-04-03 15:38 ` [PATCH v6 01/18] KVM: arm64: Extend smccc_get_argx() Gavin Shan
2022-04-03 15:38 ` [PATCH v6 02/18] KVM: arm64: Route hypercalls based on their owner Gavin Shan
2022-04-21 8:19 ` Oliver Upton
2022-04-22 12:20 ` Gavin Shan
2022-04-22 17:59 ` Oliver Upton
2022-04-23 12:48 ` Gavin Shan
2022-04-03 15:38 ` [PATCH v6 03/18] KVM: arm64: Add SDEI virtualization infrastructure Gavin Shan
2022-04-22 21:48 ` Oliver Upton
2022-04-23 14:18 ` Gavin Shan
2022-04-23 18:43 ` Oliver Upton
2022-04-24 3:00 ` Gavin Shan
2022-04-28 20:28 ` Oliver Upton
2022-04-30 11:38 ` Gavin Shan
2022-04-30 14:16 ` Oliver Upton
2022-05-02 2:35 ` Gavin Shan
2022-05-02 3:40 ` Oliver Upton
2022-05-02 7:25 ` Gavin Shan
2022-05-02 7:57 ` Oliver Upton
2022-05-02 8:23 ` Gavin Shan
2022-04-03 15:38 ` [PATCH v6 04/18] KVM: arm64: Support SDEI_EVENT_REGISTER hypercall Gavin Shan
2022-04-30 14:54 ` Oliver Upton
2022-05-02 2:55 ` Gavin Shan
2022-05-02 3:43 ` Oliver Upton
2022-05-02 7:28 ` Gavin Shan
2022-04-03 15:38 ` [PATCH v6 05/18] KVM: arm64: Support SDEI_EVENT_{ENABLE, DISABLE} Gavin Shan
2022-04-03 15:38 ` [PATCH v6 06/18] KVM: arm64: Support SDEI_EVENT_CONTEXT hypercall Gavin Shan
2022-04-30 15:03 ` Oliver Upton
2022-05-02 2:57 ` Gavin Shan
2022-04-03 15:39 ` [PATCH v6 07/18] KVM: arm64: Support SDEI_EVENT_UNREGISTER hypercall Gavin Shan
2022-04-03 15:39 ` [PATCH v6 08/18] KVM: arm64: Support SDEI_EVENT_STATUS hypercall Gavin Shan
2022-04-03 15:39 ` [PATCH v6 09/18] KVM: arm64: Support SDEI_EVENT_GET_INFO hypercall Gavin Shan
2022-04-03 15:39 ` [PATCH v6 10/18] KVM: arm64: Support SDEI_PE_{MASK, UNMASK} hypercall Gavin Shan
2022-04-04 10:26 ` [PATCH] KVM: arm64: fix returnvar.cocci warnings kernel test robot
2022-04-04 10:54 ` Gavin Shan
2022-04-04 10:29 ` [PATCH v6 10/18] KVM: arm64: Support SDEI_PE_{MASK, UNMASK} hypercall kernel test robot
2022-04-03 15:39 ` [PATCH v6 11/18] KVM: arm64: Support SDEI_{PRIVATE, SHARED}_RESET Gavin Shan
2022-04-03 15:39 ` [PATCH v6 12/18] KVM: arm64: Support SDEI event injection, delivery Gavin Shan
2022-04-03 15:39 ` [PATCH v6 13/18] KVM: arm64: Support SDEI_EVENT_{COMPLETE,COMPLETE_AND_RESUME} hypercall Gavin Shan
2022-05-01 6:50 ` Oliver Upton
2022-05-02 6:19 ` Gavin Shan
2022-05-02 7:38 ` Oliver Upton
2022-05-02 7:51 ` Gavin Shan
2022-04-03 15:39 ` [PATCH v6 14/18] KVM: arm64: Support SDEI_EVENT_SIGNAL hypercall Gavin Shan
2022-04-30 21:32 ` Oliver Upton
2022-05-02 3:04 ` Gavin Shan
2022-04-03 15:39 ` [PATCH v6 15/18] KVM: arm64: Support SDEI_FEATURES hypercall Gavin Shan
2022-05-01 6:55 ` Oliver Upton
2022-05-02 3:05 ` Gavin Shan
2022-04-03 15:39 ` [PATCH v6 16/18] KVM: arm64: Support SDEI_VERSION hypercall Gavin Shan
2022-04-03 15:39 ` [PATCH v6 17/18] KVM: arm64: Expose SDEI capability Gavin Shan
2022-04-03 15:39 ` [PATCH v6 18/18] KVM: selftests: Add SDEI test case Gavin Shan
2022-04-03 15:47 ` Gavin Shan [this message]
2022-04-04 6:09 ` [PATCH v6 00/18] Support SDEI Virtualization Oliver Upton
2022-04-04 10:53 ` Gavin Shan
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