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Re: [Qemu-devel] [PATCH v7 5/8] hw/intc/arm_gicv3_its: Implement support
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH v7 5/8] hw/intc/arm_gicv3_its: Implement support for in-kernel ITS emulation |
Date: |
Thu, 29 Sep 2016 17:38:01 -0700 |
On 23 September 2016 at 00:43, Eric Auger <address@hidden> wrote:
> From: Pavel Fedin <address@hidden>
>
> The ITS control frame is in-kernel emulated while accesses to the
> GITS_TRANSLATER are mediated through the KVM_SIGNAL_MSI ioctl (MSI
> direct MSI injection advertised by the CAP_SIGNAL_MSI capability)
>
> the kvm_gsi_direct_mapping is explicitly set to false to emphasize the
> difference with GICv2M. Direct mapping cannot work with ITS since
> the content of the MSI data is not the target interrupt ID but an
> eventd id.
>
> GSI routing is advertised (kvm_gsi_routing_allowed) as well as
> msi/irqfd signaling (kvm_msi_via_irqfd_allowed).
>
> The MSI frame (GITS_TRANSLATER) absolute GPA is computed on first
> kvm_its_send_msi() call. It is then passed through KVM_SIGNAL_MSI
> ioctl.
>
> Signed-off-by: Pavel Fedin <address@hidden>
> Signed-off-by: Eric Auger <address@hidden>
Applied to target-arm.next, thanks.
-- PMM
- [Qemu-devel] [PATCH v7 0/8] vITS support, Eric Auger, 2016/09/23
- [Qemu-devel] [PATCH v7 1/8] hw/intc/arm_gic(v3)_kvm: Initialize gsi routing, Eric Auger, 2016/09/23
- [Qemu-devel] [PATCH v7 2/8] hw/intc/arm_gicv3_its: Implement ITS base class, Eric Auger, 2016/09/23
- [Qemu-devel] [PATCH v7 3/8] target-arm: move gicv3_class_name from machine to kvm_arm.h, Eric Auger, 2016/09/23
- [Qemu-devel] [PATCH v7 4/8] kvm-all: Pass requester ID to MSI routing functions, Eric Auger, 2016/09/23
- [Qemu-devel] [PATCH v7 5/8] hw/intc/arm_gicv3_its: Implement support for in-kernel ITS emulation, Eric Auger, 2016/09/23
- Re: [Qemu-devel] [PATCH v7 5/8] hw/intc/arm_gicv3_its: Implement support for in-kernel ITS emulation,
Peter Maydell <=
- [Qemu-devel] [PATCH v7 7/8] ACPI: Add GIC Interrupt Translation Service Structure definition, Eric Auger, 2016/09/23
- [Qemu-devel] [PATCH v7 6/8] arm/virt: Add ITS to the virt board, Eric Auger, 2016/09/23
- [Qemu-devel] [PATCH v7 8/8] ARM: Virt: ACPI: Add GIC ITS description in ACPI MADT table, Eric Auger, 2016/09/23
- Re: [Qemu-devel] [PATCH v7 0/8] vITS support, Peter Maydell, 2016/09/29