linux-kernel - [PATCH 0/4] LoongArch: KVM: Code cleanup about feature detect

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Message-Id: <20260128030326.3377462-1-maobibo@loongson.cn>
Date: Wed, 28 Jan 2026 11:03:22 +0800
From: Bibo Mao <maobibo@...ngson.cn>
To: Huacai Chen <chenhuacai@...nel.org>,
	WANG Xuerui <kernel@...0n.name>,
	Tianrui Zhao <zhaotianrui@...ngson.cn>
Cc: loongarch@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	kvm@...r.kernel.org
Subject: [PATCH 0/4] LoongArch: KVM: Code cleanup about feature detect

Here is code cleanup about feature detection, there is feature
initialization about host machine, feature checking about VM and host.

Also add register LOONGARCH_CSR_IPR during vCPU context switch, though
it is not used by msgint driver now, it is defined by HW and may be used
in future.

Bibo Mao (4):
  LoongArch: KVM: Move feature detection in function
    kvm_vm_init_features
  LoongArch: KVM: Add msgint registers in function kvm_init_gcsr_flag
  LoongArch: KVM: Check VM msgint feature during interrupt handling
  LoongArch: KVM: Add register LOONGARCH_CSR_IPR during vCPU context
    switch

 arch/loongarch/include/asm/kvm_host.h  |  5 ++++
 arch/loongarch/include/asm/loongarch.h |  2 +-
 arch/loongarch/kvm/interrupt.c         |  4 +--
 arch/loongarch/kvm/main.c              |  8 ++++++
 arch/loongarch/kvm/vcpu.c              |  6 +++--
 arch/loongarch/kvm/vm.c                | 36 +++++++++++---------------
 6 files changed, 35 insertions(+), 26 deletions(-)


base-commit: 1f97d9dcf53649c41c33227b345a36902cbb08ad
-- 
2.39.3