From: Peter Xu <peterx@redhat.com>
To: qemu-devel@nongnu.org
Cc: imammedo@redhat.com, rth@twiddle.net, ehabkost@redhat.com,
jasowang@redhat.com, marcel@redhat.com, mst@redhat.com,
pbonzini@redhat.com, jan.kiszka@web.de, rkrcmar@redhat.com,
alex.williamson@redhat.com, wexu@redhat.com,
davidkiarie4@gmail.com
Subject: Re: [Qemu-devel] [PATCH v6 24/26] kvm-irqchip: i386: add hook for add/remove virq
Date: Mon, 9 May 2016 16:02:03 +0800 [thread overview]
Message-ID: <20160509080203.GC3250@pxdev.xzpeter.org> (raw)
In-Reply-To: <1462418761-12714-25-git-send-email-peterx@redhat.com>
On Thu, May 05, 2016 at 11:25:59AM +0800, Peter Xu wrote:
> Adding two hooks to be notified when adding/removing msi routes. On x86
> platform, one list is maintained for all existing msi routes.
Here the commit message is not accurate. Not all existing MSI routes
are maintained. Only irqfd ones.
There are two kinds of MSI routes:
- in kvm_irqchip_add_irq_route(): before assigning IRQFD. Used by
vhost, vfio, etc.
- in kvm_irqchip_send_msi(): when sending direct MSI message, if
direct MSI not allowed, we will first create one MSI route entry
in the kernel, then trigger it.
This patch only hooks the first one (irqfd case). We do not need to
take care for the 2nd one, since it's only used by QEMU userspace
(kvm-apic) and the messages will always do in-time translation when
triggered.
-- peterx
next prev parent reply other threads:[~2016-05-09 8:02 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-05 3:25 [Qemu-devel] [PATCH v6 00/26] IOMMU: Enable interrupt remapping for Intel IOMMU Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 01/26] acpi: enable INTR for DMAR report structure Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 02/26] intel_iommu: allow queued invalidation for IR Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 03/26] intel_iommu: set IR bit for ECAP register Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 04/26] acpi: add DMAR scope definition for root IOAPIC Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 05/26] intel_iommu: define interrupt remap table addr register Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 06/26] intel_iommu: handle interrupt remap enable Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 07/26] intel_iommu: define several structs for IOMMU IR Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 08/26] intel_iommu: provide helper function vtd_get_iommu Peter Xu
2016-05-05 9:29 ` David Kiarie
2016-05-09 6:15 ` Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 09/26] intel_iommu: add IR translation faults defines Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 10/26] intel_iommu: Add support for PCI MSI remap Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 11/26] q35: ioapic: add support for emulated IOAPIC IR Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 12/26] ioapic: introduce ioapic_entry_parse() helper Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 13/26] intel_iommu: add support for split irqchip Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 14/26] q35: add "intremap" parameter to enable IR Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 15/26] intel_iommu: introduce IEC notifiers Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 16/26] ioapic: register VT-d IEC invalidate notifier Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 17/26] ioapic: keep RO bits for IOAPIC entry Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 18/26] ioapic: clear remote irr bit for edge-triggered interrupts Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 19/26] intel_iommu: Add support for Extended Interrupt Mode Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 20/26] intel_iommu: add SID validation for IR Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 21/26] x86-iommu: introduce parent class Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 22/26] x86-iommu: replace existing VT-d hooks into X86 ones Peter Xu
2016-05-05 9:35 ` Jan Kiszka
2016-05-09 5:23 ` Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 23/26] kvm-irqchip: simplify kvm_irqchip_add_msi_route Peter Xu
2016-05-05 3:25 ` [Qemu-devel] [PATCH v6 24/26] kvm-irqchip: i386: add hook for add/remove virq Peter Xu
2016-05-09 8:02 ` Peter Xu [this message]
2016-05-10 8:11 ` Peter Xu
2016-05-05 3:26 ` [Qemu-devel] [PATCH v6 25/26] kvm-irqchip: x86: add msi route notify fn Peter Xu
2016-05-05 3:26 ` [Qemu-devel] [PATCH v6 26/26] kvm-irqchip: do explicit commit when update irq Peter Xu
2016-05-05 4:36 ` [Qemu-devel] [PATCH v6 00/26] IOMMU: Enable interrupt remapping for Intel IOMMU Peter Xu
2016-05-09 17:15 ` Radim Krčmář
2016-05-09 20:37 ` Radim Krčmář
2016-05-10 6:16 ` Peter Xu
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