RE: [PATCH v2 8/8] irqbypass: Require producers to pass in Linux IRQ number... | netdev

[PATCH v2 0/8] irqbypass: Cleanups and a perf improvement · Sean Christopherson <seanjc@google.com> · 2025-05-16
[PATCH v2 1/8] irqbypass: Drop pointless and misleading THIS_MODULE get/put · Sean Christopherson <seanjc@google.com> · 2025-05-16
[PATCH v2 2/8] irqbypass: Drop superfluous might_sleep() annotations · Sean Christopherson <seanjc@google.com> · 2025-05-16
[PATCH v2 3/8] irqbypass: Take ownership of producer/consumer token tracking · Sean Christopherson <seanjc@google.com> · 2025-05-16
[PATCH v2 4/8] irqbypass: Explicitly track producer and consumer bindings · Sean Christopherson <seanjc@google.com> · 2025-05-16
[PATCH v2 5/8] irqbypass: Use paired consumer/producer to disconnect during unregister · Sean Christopherson <seanjc@google.com> · 2025-05-16
[PATCH v2 6/8] irqbypass: Use guard(mutex) in lieu of manual lock+unlock · Sean Christopherson <seanjc@google.com> · 2025-05-16
[PATCH v2 7/8] irqbypass: Use xarray to track producers and consumers · Sean Christopherson <seanjc@google.com> · 2025-05-16
[PATCH v2 8/8] irqbypass: Require producers to pass in Linux IRQ number during registration · Sean Christopherson <seanjc@google.com> · 2025-05-16
RE: [PATCH v2 8/8] irqbypass: Require producers to pass in Linux IRQ number during registration · "Tian, Kevin" <kevin.tian@intel.com> · 2025-05-23
Re: [PATCH v2 0/8] irqbypass: Cleanups and a perf improvement · "Michael S. Tsirkin" <mst@redhat.com> · 2025-05-18
Re: [PATCH v2 0/8] irqbypass: Cleanups and a perf improvement · Alex Williamson <hidden> · 2025-06-02
Re: [PATCH v2 0/8] irqbypass: Cleanups and a perf improvement · Sean Christopherson <seanjc@google.com> · 2025-06-02
Re: [PATCH v2 0/8] irqbypass: Cleanups and a perf improvement · Sean Christopherson <seanjc@google.com> · 2025-06-24

RE: [PATCH v2 8/8] irqbypass: Require producers to pass in Linux IRQ number during registration

From: "Tian, Kevin" <kevin.tian@intel.com>
Date: 2025-05-23 01:54:35
Also in: kvm, lkml, virtualization

From: Sean Christopherson <seanjc@google.com>
Sent: Saturday, May 17, 2025 7:08 AM

Pass in the Linux IRQ associated with an IRQ bypass producer instead of
relying on the caller to set the field prior to registration, as there's
no benefit to relying on callers to do the right thing.

Take care to set producer->irq before __connect(), as KVM expects the IRQ
to be valid as soon as a connection is possible.

Signed-off-by: Sean Christopherson <seanjc@google.com>

Reviewed-by: Kevin Tian <kevin.tian@intel.com>

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