linux-kernel - [PATCH v3 0/4] LongArch: KVM: Add AVEC support irqchip in kernel

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Message-Id: <20251206064658.714100-1-gaosong@loongson.cn>
Date: Sat,  6 Dec 2025 14:46:54 +0800
From: Song Gao <gaosong@...ngson.cn>
To: maobibo@...ngson.cn,
	chenhuacai@...nel.org
Cc: kvm@...r.kernel.org,
	loongarch@...ts.linux.dev,
	kernel@...0n.name,
	linux-kernel@...r.kernel.org,
	lixianglai@...ngson.cn
Subject: [PATCH v3 0/4] LongArch: KVM: Add AVEC support irqchip in kernel 

Hi,

This series adds AVEC-related macros, implements the DINTC in-kernel irqchip device,
enables irqfd to deliver MSI to DINTC, and supports injecting MSI interrupts
to the target vCPU.


V3: Fix kvm_arch_set_irq_inatomic() missing dintc set msi.(patch3)

V2:
https://patchew.org/linux/20251128091125.2720148-1-gaosong@loongson.cn/

Thanks.
Song Gao

Song Gao (4):
  LongArch: KVM: Add some maccros for AVEC
  LongArch: KVM: Add DINTC device support
  LongArch: KVM: Add irqfd set dintc msi
  LongArch: KVM: Add dintc inject msi to the dest vcpu

 arch/loongarch/include/asm/irq.h       |   8 ++
 arch/loongarch/include/asm/kvm_dintc.h |  22 +++++
 arch/loongarch/include/asm/kvm_host.h  |   8 ++
 arch/loongarch/include/uapi/asm/kvm.h  |   4 +
 arch/loongarch/kvm/Makefile            |   1 +
 arch/loongarch/kvm/intc/dintc.c        | 116 +++++++++++++++++++++++++
 arch/loongarch/kvm/interrupt.c         |   1 +
 arch/loongarch/kvm/irqfd.c             |  45 ++++++++--
 arch/loongarch/kvm/main.c              |   5 ++
 arch/loongarch/kvm/vcpu.c              |  55 ++++++++++++
 drivers/irqchip/irq-loongarch-avec.c   |   5 +-
 include/uapi/linux/kvm.h               |   2 +
 12 files changed, 263 insertions(+), 9 deletions(-)
 create mode 100644 arch/loongarch/include/asm/kvm_dintc.h
 create mode 100644 arch/loongarch/kvm/intc/dintc.c

-- 
2.39.3