linux-kernel - Re: [PATCH v3 0/4] LoongArch: KVM: Small enhancements about IPI and LBT

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Message-ID: <CAAhV-H4Sem=X7KUiO2vQgT_5KX-v4Xv3yB+UUrWHL4tmRnJkGQ@mail.gmail.com>
Date: Sun, 17 Aug 2025 11:45:14 +0800
From: Huacai Chen <chenhuacai@...nel.org>
To: Bibo Mao <maobibo@...ngson.cn>
Cc: Tianrui Zhao <zhaotianrui@...ngson.cn>, Xianglai Li <lixianglai@...ngson.cn>, kvm@...r.kernel.org, 
	loongarch@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/4] LoongArch: KVM: Small enhancements about IPI and LBT

Patch-1 and Patch-4 are applied for loongarch-fixes.

Huacai

On Fri, Aug 15, 2025 at 10:26 AM Bibo Mao <maobibo@...ngson.cn> wrote:
>
> Thre are some small enhancement about IPI emulation and LBT enabling in
> LoongArch KVM. With IPI, it supports sending command to vCPU itself. And
> with LBT it adds flag checking int function kvm_own_lbt() and make it
> robust.
>
> ---
> v2 ... v3:
>   1. Fix stack protector issue in send_ipi_data()
>
> v1 ... v2:
>   1. Add sending IPI command to vCPU itself
>   2. Avoid duplicated LBT enabling in kvm_own_lbt()
> ---
> Bibo Mao (4):
>   LoongArch: KVM: Fix stack protector issue in send_ipi_data()
>   LoongArch: KVM: Access mailbox directly in mail_send()
>   LoongArch: KVM: Add implementation with IOCSR_IPI_SET
>   LoongArch: KVM: Make function kvm_own_lbt() robust
>
>  arch/loongarch/kvm/intc/ipi.c | 57 ++++++++++++++++++++++-------------
>  arch/loongarch/kvm/vcpu.c     |  8 +++--
>  2 files changed, 41 insertions(+), 24 deletions(-)
>
>
> base-commit: dfc0f6373094dd88e1eaf76c44f2ff01b65db851
> --
> 2.39.3
>