From: Eric Auger <eauger@redhat.com> To: Gavin Shan <gshan@redhat.com>, kvmarm@lists.cs.columbia.edu Cc: maz@kernel.org, linux-kernel@vger.kernel.org, Jonathan.Cameron@huawei.com, pbonzini@redhat.com, will@kernel.org Subject: Re: [PATCH v4 00/21] Support SDEI Virtualization Date: Wed, 10 Nov 2021 15:29:17 +0100 [thread overview] Message-ID: <7f5e86dd-b38d-8699-58bd-35db78ec1b7a@redhat.com> (raw) In-Reply-To: <eee7eeb2-cedf-e52f-1e5f-403d9edabd94@redhat.com> Hi Gavin, On 8/15/21 2:19 AM, Gavin Shan wrote: > On 8/15/21 10:13 AM, Gavin Shan wrote: >> This series intends to virtualize Software Delegated Exception Interface >> (SDEI), which is defined by DEN0054A. It allows the hypervisor to deliver >> NMI-alike event to guest and it's needed by asynchronous page fault 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/latest >> https://github.com/gwshan/linux ("kvm/arm64_sdei") >> https://github.com/gwshan/qemu ("kvm/arm64_sdei") >> >> The SDEI event is identified by a 32-bits number. Bits[31:24] are used >> to indicate the SDEI event properties while bits[23:0] are identifying >> the unique number. The implementation takes bits[23:22] to indicate the >> owner of the SDEI event. For example, those SDEI events owned by KVM >> should have these two bits set to 0b01. Besides, the implementation >> supports SDEI events owned by KVM only. >> >> The design is pretty straightforward and the implementation is just >> following the SDEI specification, to support the defined SMCCC intefaces, >> except the IRQ binding stuff. There are several data structures >> introduced. >> Some of the objects have to be migrated by VMM. So their definitions are >> split up for VMM to include the corresponding states for migration. >> >> struct kvm_sdei_kvm >> Associated with VM and used to track the KVM exposed SDEI events >> and those registered by guest. >> struct kvm_sdei_vcpu >> Associated with vCPU and used to track SDEI event delivery. The >> preempted context is saved prior to the delivery and restored >> after that. >> struct kvm_sdei_event >> SDEI events exposed by KVM so that guest can register and enable. >> struct kvm_sdei_kvm_event >> SDEI events that have been registered by guest. >> struct kvm_sdei_vcpu_event >> SDEI events that have been queued to specific vCPU for delivery. >> >> The series is organized as below: >> >> PATCH[01] Introduces template for smccc_get_argx() >> PATCH[02] Introduces the data structures and infrastructure >> PATCH[03-14] Supports various SDEI related hypercalls >> PATCH[15] Supports SDEI event notification >> PATCH[16-17] Introduces ioctl command for migration >> PATCH[18-19] Supports SDEI event injection and cancellation >> PATCH[20] Exports SDEI capability >> PATCH[21] Adds self-test case for SDEI virtualization >> > > [...] > > I explicitly copied James Morse and Mark Rutland when posting the series, > but something unknown went wrong. I'm including them here to avoid > reposting the whole series. I don't see James nor Mark included here either Eric > > Thanks, > Gavin > > _______________________________________________ > kvmarm mailing list > kvmarm@lists.cs.columbia.edu > https://lists.cs.columbia.edu/mailman/listinfo/kvmarm >
WARNING: multiple messages have this Message-ID (diff)
From: Eric Auger <eauger@redhat.com> To: Gavin Shan <gshan@redhat.com>, kvmarm@lists.cs.columbia.edu Cc: maz@kernel.org, pbonzini@redhat.com, will@kernel.org, linux-kernel@vger.kernel.org, Jonathan.Cameron@huawei.com Subject: Re: [PATCH v4 00/21] Support SDEI Virtualization Date: Wed, 10 Nov 2021 15:29:17 +0100 [thread overview] Message-ID: <7f5e86dd-b38d-8699-58bd-35db78ec1b7a@redhat.com> (raw) In-Reply-To: <eee7eeb2-cedf-e52f-1e5f-403d9edabd94@redhat.com> Hi Gavin, On 8/15/21 2:19 AM, Gavin Shan wrote: > On 8/15/21 10:13 AM, Gavin Shan wrote: >> This series intends to virtualize Software Delegated Exception Interface >> (SDEI), which is defined by DEN0054A. It allows the hypervisor to deliver >> NMI-alike event to guest and it's needed by asynchronous page fault 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/latest >> https://github.com/gwshan/linux ("kvm/arm64_sdei") >> https://github.com/gwshan/qemu ("kvm/arm64_sdei") >> >> The SDEI event is identified by a 32-bits number. Bits[31:24] are used >> to indicate the SDEI event properties while bits[23:0] are identifying >> the unique number. The implementation takes bits[23:22] to indicate the >> owner of the SDEI event. For example, those SDEI events owned by KVM >> should have these two bits set to 0b01. Besides, the implementation >> supports SDEI events owned by KVM only. >> >> The design is pretty straightforward and the implementation is just >> following the SDEI specification, to support the defined SMCCC intefaces, >> except the IRQ binding stuff. There are several data structures >> introduced. >> Some of the objects have to be migrated by VMM. So their definitions are >> split up for VMM to include the corresponding states for migration. >> >> struct kvm_sdei_kvm >> Associated with VM and used to track the KVM exposed SDEI events >> and those registered by guest. >> struct kvm_sdei_vcpu >> Associated with vCPU and used to track SDEI event delivery. The >> preempted context is saved prior to the delivery and restored >> after that. >> struct kvm_sdei_event >> SDEI events exposed by KVM so that guest can register and enable. >> struct kvm_sdei_kvm_event >> SDEI events that have been registered by guest. >> struct kvm_sdei_vcpu_event >> SDEI events that have been queued to specific vCPU for delivery. >> >> The series is organized as below: >> >> PATCH[01] Introduces template for smccc_get_argx() >> PATCH[02] Introduces the data structures and infrastructure >> PATCH[03-14] Supports various SDEI related hypercalls >> PATCH[15] Supports SDEI event notification >> PATCH[16-17] Introduces ioctl command for migration >> PATCH[18-19] Supports SDEI event injection and cancellation >> PATCH[20] Exports SDEI capability >> PATCH[21] Adds self-test case for SDEI virtualization >> > > [...] > > I explicitly copied James Morse and Mark Rutland when posting the series, > but something unknown went wrong. I'm including them here to avoid > reposting the whole series. I don't see James nor Mark included here either Eric > > Thanks, > Gavin > > _______________________________________________ > kvmarm mailing list > kvmarm@lists.cs.columbia.edu > https://lists.cs.columbia.edu/mailman/listinfo/kvmarm > _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
next prev parent reply other threads:[~2021-11-10 14:29 UTC|newest] Thread overview: 158+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-08-15 0:13 [PATCH v4 00/21] Support SDEI Virtualization Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-08-15 0:13 ` [PATCH v4 01/21] KVM: arm64: Introduce template for inline functions Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-09 15:26 ` Eric Auger 2021-11-09 15:26 ` Eric Auger 2022-01-11 7:52 ` Gavin Shan 2022-01-11 7:52 ` Gavin Shan 2021-08-15 0:13 ` [PATCH v4 02/21] KVM: arm64: Add SDEI virtualization infrastructure Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-09 15:45 ` Eric Auger 2021-11-09 15:45 ` Eric Auger 2022-01-11 9:20 ` Gavin Shan 2022-01-11 9:20 ` Gavin Shan 2022-01-27 13:17 ` Eric Auger 2022-01-27 13:17 ` Eric Auger 2022-01-11 9:40 ` Shannon Zhao 2022-01-11 9:40 ` Shannon Zhao 2022-01-13 7:09 ` Gavin Shan 2022-01-13 7:09 ` Gavin Shan 2021-08-15 0:13 ` [PATCH v4 03/21] KVM: arm64: Support SDEI_VERSION hypercall Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-09 15:26 ` Eric Auger 2021-11-09 15:26 ` Eric Auger 2022-01-11 9:25 ` Gavin Shan 2022-01-11 9:25 ` Gavin Shan 2021-08-15 0:13 ` [PATCH v4 04/21] KVM: arm64: Support SDEI_EVENT_REGISTER hypercall Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-09 15:50 ` Eric Auger 2021-11-09 15:50 ` Eric Auger 2022-01-12 2:19 ` Gavin Shan 2022-01-12 2:19 ` Gavin Shan 2021-08-15 0:13 ` [PATCH v4 05/21] KVM: arm64: Support SDEI_EVENT_{ENABLE, DISABLE} hypercall Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-09 16:02 ` Eric Auger 2021-11-09 16:02 ` Eric Auger 2022-01-12 2:29 ` Gavin Shan 2022-01-12 2:29 ` Gavin Shan 2022-01-25 18:23 ` Eric Auger 2022-01-25 18:23 ` Eric Auger 2021-08-15 0:13 ` [PATCH v4 06/21] KVM: arm64: Support SDEI_EVENT_CONTEXT hypercall Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-10 11:16 ` Eric Auger 2021-11-10 11:16 ` Eric Auger 2022-01-12 2:33 ` Gavin Shan 2022-01-12 2:33 ` Gavin Shan 2022-01-25 18:29 ` Eric Auger 2022-01-25 18:29 ` Eric Auger 2022-01-11 9:43 ` Shannon Zhao 2022-01-11 9:43 ` Shannon Zhao 2022-01-13 7:02 ` Gavin Shan 2022-01-13 7:02 ` Gavin Shan 2022-01-13 7:13 ` Gavin Shan 2022-01-13 7:13 ` Gavin Shan 2022-01-25 18:32 ` Eric Auger 2022-01-25 18:32 ` Eric Auger 2022-01-25 18:31 ` Eric Auger 2022-01-25 18:31 ` Eric Auger 2021-08-15 0:13 ` [PATCH v4 07/21] KVM: arm64: Support SDEI_EVENT_UNREGISTER hypercall Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-09 17:05 ` Eric Auger 2021-11-09 17:05 ` Eric Auger 2022-01-12 2:38 ` Gavin Shan 2022-01-12 2:38 ` Gavin Shan 2022-01-25 18:42 ` Eric Auger 2022-01-25 18:42 ` Eric Auger 2021-08-15 0:13 ` [PATCH v4 08/21] KVM: arm64: Support SDEI_EVENT_STATUS hypercall Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-09 17:12 ` Eric Auger 2021-11-09 17:12 ` Eric Auger 2022-01-12 2:40 ` Gavin Shan 2022-01-12 2:40 ` Gavin Shan 2021-08-15 0:13 ` [PATCH v4 09/21] KVM: arm64: Support SDEI_EVENT_GET_INFO hypercall Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-09 17:19 ` Eric Auger 2021-11-09 17:19 ` Eric Auger 2022-01-12 2:46 ` Gavin Shan 2022-01-12 2:46 ` Gavin Shan 2022-01-27 14:19 ` Eric Auger 2022-01-27 14:19 ` Eric Auger 2021-08-15 0:13 ` [PATCH v4 10/21] KVM: arm64: Support SDEI_EVENT_ROUTING_SET hypercall Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-09 18:47 ` Eric Auger 2021-11-09 18:47 ` Eric Auger 2022-01-12 2:54 ` Gavin Shan 2022-01-12 2:54 ` Gavin Shan 2022-01-27 14:13 ` Eric Auger 2022-01-27 14:13 ` Eric Auger 2021-08-15 0:13 ` [PATCH v4 11/21] KVM: arm64: Support SDEI_PE_{MASK, UNMASK} hypercall Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-09 20:31 ` Eric Auger 2021-11-09 20:31 ` Eric Auger 2022-01-12 2:58 ` Gavin Shan 2022-01-12 2:58 ` Gavin Shan 2021-08-15 0:13 ` [PATCH v4 12/21] KVM: arm64: Support SDEI_{PRIVATE, SHARED}_RESET hypercall Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-09 20:37 ` Eric Auger 2021-11-09 20:37 ` Eric Auger 2022-01-12 3:01 ` Gavin Shan 2022-01-12 3:01 ` Gavin Shan 2021-08-15 0:13 ` [PATCH v4 13/21] KVM: arm64: Impment SDEI event delivery Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-10 10:58 ` Eric Auger 2021-11-10 10:58 ` Eric Auger 2022-01-12 6:34 ` Gavin Shan 2022-01-12 6:34 ` Gavin Shan 2021-08-15 0:13 ` [PATCH v4 14/21] KVM: arm64: Support SDEI_EVENT_{COMPLETE, COMPLETE_AND_RESUME} hypercall Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-10 10:58 ` Eric Auger 2021-11-10 10:58 ` Eric Auger 2022-01-12 6:43 ` Gavin Shan 2022-01-12 6:43 ` Gavin Shan 2022-01-27 14:47 ` Eric Auger 2022-01-27 14:47 ` Eric Auger 2022-01-27 15:20 ` Eric Auger 2022-01-27 15:20 ` Eric Auger 2021-08-15 0:13 ` [PATCH v4 15/21] KVM: arm64: Support SDEI event notifier Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-10 11:35 ` Eric Auger 2021-11-10 11:35 ` Eric Auger 2022-01-12 6:48 ` Gavin Shan 2022-01-12 6:48 ` Gavin Shan 2021-08-15 0:13 ` [PATCH v4 16/21] KVM: arm64: Support SDEI ioctl commands on VM Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-10 13:48 ` Eric Auger 2021-11-10 13:48 ` Eric Auger 2022-01-12 7:03 ` Gavin Shan 2022-01-12 7:03 ` Gavin Shan 2022-01-27 13:48 ` Eric Auger 2022-01-27 13:48 ` Eric Auger 2021-08-15 0:13 ` [PATCH v4 17/21] KVM: arm64: Support SDEI ioctl commands on vCPU Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-08-15 0:13 ` [PATCH v4 18/21] KVM: arm64: Support SDEI event injection Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-10 14:05 ` Eric Auger 2021-11-10 14:05 ` Eric Auger 2022-01-12 7:12 ` Gavin Shan 2022-01-12 7:12 ` Gavin Shan 2021-08-15 0:13 ` [PATCH v4 19/21] KVM: arm64: Support SDEI event cancellation Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-10 14:09 ` Eric Auger 2021-11-10 14:09 ` Eric Auger 2022-01-12 7:19 ` Gavin Shan 2022-01-12 7:19 ` Gavin Shan 2021-08-15 0:13 ` [PATCH v4 20/21] KVM: arm64: Export SDEI capability Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-11-10 13:55 ` Eric Auger 2021-11-10 13:55 ` Eric Auger 2022-01-12 7:20 ` Gavin Shan 2022-01-12 7:20 ` Gavin Shan 2021-08-15 0:13 ` [PATCH v4 21/21] KVM: selftests: Add SDEI test case Gavin Shan 2021-08-15 0:13 ` Gavin Shan 2021-08-15 0:19 ` [PATCH v4 00/21] Support SDEI Virtualization Gavin Shan 2021-08-15 0:19 ` Gavin Shan 2021-11-10 14:29 ` Eric Auger [this message] 2021-11-10 14:29 ` Eric Auger 2022-01-12 7:24 ` Gavin Shan 2022-01-12 7:24 ` Gavin Shan
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