linux-kernel - Re: [GIT PULL] LoongArch KVM changes for v6.9

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Message-ID: <208e03b7-374b-4062-bed2-dda595fcad77@redhat.com>
Date: Mon, 11 Mar 2024 15:02:03 +0100
From: Paolo Bonzini <pbonzini@...hat.com>
To: Huacai Chen <chenhuacai@...ngson.cn>, Huacai Chen
 <chenhuacai@...nel.org>, Tianrui Zhao <zhaotianrui@...ngson.cn>,
 Bibo Mao <maobibo@...ngson.cn>
Cc: kvm@...r.kernel.org, loongarch@...ts.linux.dev,
 linux-kernel@...r.kernel.org, Xuerui Wang <kernel@...0n.name>,
 Jiaxun Yang <jiaxun.yang@...goat.com>
Subject: Re: [GIT PULL] LoongArch KVM changes for v6.9

On 3/7/24 15:49, Huacai Chen wrote:
> The following changes since commit 90d35da658da8cff0d4ecbb5113f5fac9d00eb72:
> 
>    Linux 6.8-rc7 (2024-03-03 13:02:52 -0800)
> 
> are available in the Git repository at:
> 
>    git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson.git tags/loongarch-kvm-6.9
> 
> for you to fetch changes up to b99f783106ea5b2f8c9d74f4d3b1e2f77af9ec6e:
> 
>    LoongArch: KVM: Remove unnecessary CSR register saving during enter guest (2024-03-06 09:12:13 +0800)

Pulled, thanks.

Paolo

> ----------------------------------------------------------------
> LoongArch KVM changes for v6.9
> 
> 1. Set reserved bits as zero in CPUCFG.
> 2. Start SW timer only when vcpu is blocking.
> 3. Do not restart SW timer when it is expired.
> 4. Remove unnecessary CSR register saving during enter guest.
> 
> KVM PV features are unfortunately missing in v6.9 for some
> implementation controversies, sigh.
> ----------------------------------------------------------------
> Bibo Mao (4):
>        LoongArch: KVM: Set reserved bits as zero in CPUCFG
>        LoongArch: KVM: Start SW timer only when vcpu is blocking
>        LoongArch: KVM: Do not restart SW timer when it is expired
>        LoongArch: KVM: Remove unnecessary CSR register saving during enter guest
> 
>   arch/loongarch/kvm/switch.S |  6 ------
>   arch/loongarch/kvm/timer.c  | 43 ++++++++++---------------------------------
>   arch/loongarch/kvm/vcpu.c   | 33 ++++++++++++++++++++++++++-------
>   3 files changed, 36 insertions(+), 46 deletions(-)
>