From: Sean Christopherson <seanjc@google.com>
To: Steffen Eiden <seiden@linux.ibm.com>
Cc: Marc Zyngier <maz@kernel.org>, Oliver Upton <oupton@kernel.org>,
Tianrui Zhao <zhaotianrui@loongson.cn>,
Bibo Mao <maobibo@loongson.cn>,
Huacai Chen <chenhuacai@kernel.org>,
Madhavan Srinivasan <maddy@linux.ibm.com>,
Anup Patel <anup@brainfault.org>, Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Paolo Bonzini <pbonzini@redhat.com>,
Fuad Tabba <fuad.tabba@linux.dev>,
Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
Nicholas Piggin <npiggin@gmail.com>,
Atish Patra <atish.patra@linux.dev>,
Alexandre Ghiti <alex@ghiti.fr>,
linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
kvm@vger.kernel.org, loongarch@lists.linux.dev,
linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org,
linux-kernel@vger.kernel.org,
Stefan Teodorescu <fane@google.com>
Subject: Re: [PATCH 1/7] KVM: s390: Drop unused and unreachable kvm_arch_vcpu_should_kick()
Date: Mon, 2 Nov 2026 07:34:32 -0800 [thread overview]
Message-ID: <auitiPKnFueBJzPA@google.com> (raw)
In-Reply-To: <20261102153228.240804-H-seiden@linux.ibm.com>
On Mon, Nov 02, 2026, Steffen Eiden wrote:
> On Wed, Oct 28, 2026 at 12:02:53PM -0700, Sean Christopherson wrote:
> > Drop s390's kvm_arch_vcpu_should_kick() stub as the one and only call site
> > is wrapped with "#ifndef CONFIG_S390".
>
> In the somehow near future I'll remove those #ifdefs and use the kick
> stuff for kvm_arm64. The native s390 KVM then must at least keep an
> (unused) symbol at hand. It seems that the compiler could not optimize
> those calls away. So let's keep it there so I do not have to re-add it
> soon.
Please read the rest of the series. kvm_arch_vcpu_should_kick() goes away
entirely.
WARNING: multiple messages have this Message-ID (diff)
From: Sean Christopherson <seanjc@google.com>
To: Steffen Eiden <seiden@linux.ibm.com>
Cc: Marc Zyngier <maz@kernel.org>, Oliver Upton <oupton@kernel.org>,
Tianrui Zhao <zhaotianrui@loongson.cn>,
Bibo Mao <maobibo@loongson.cn>,
Huacai Chen <chenhuacai@kernel.org>,
Madhavan Srinivasan <maddy@linux.ibm.com>,
Anup Patel <anup@brainfault.org>, Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Paolo Bonzini <pbonzini@redhat.com>,
Fuad Tabba <fuad.tabba@linux.dev>,
Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
Nicholas Piggin <npiggin@gmail.com>,
Atish Patra <atish.patra@linux.dev>,
Alexandre Ghiti <alex@ghiti.fr>,
linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
kvm@vger.kernel.org, loongarch@lists.linux.dev,
linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org,
linux-kernel@vger.kernel.org,
Stefan Teodorescu <fane@google.com>
Subject: Re: [PATCH 1/7] KVM: s390: Drop unused and unreachable kvm_arch_vcpu_should_kick()
Date: Mon, 2 Nov 2026 07:34:32 -0800 [thread overview]
Message-ID: <auitiPKnFueBJzPA@google.com> (raw)
In-Reply-To: <20261102153228.240804-H-seiden@linux.ibm.com>
On Mon, Nov 02, 2026, Steffen Eiden wrote:
> On Wed, Oct 28, 2026 at 12:02:53PM -0700, Sean Christopherson wrote:
> > Drop s390's kvm_arch_vcpu_should_kick() stub as the one and only call site
> > is wrapped with "#ifndef CONFIG_S390".
>
> In the somehow near future I'll remove those #ifdefs and use the kick
> stuff for kvm_arm64. The native s390 KVM then must at least keep an
> (unused) symbol at hand. It seems that the compiler could not optimize
> those calls away. So let's keep it there so I do not have to re-add it
> soon.
Please read the rest of the series. kvm_arch_vcpu_should_kick() goes away
entirely.
--
kvm-riscv mailing list
kvm-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kvm-riscv
WARNING: multiple messages have this Message-ID (diff)
From: Sean Christopherson <seanjc@google.com>
To: Steffen Eiden <seiden@linux.ibm.com>
Cc: Marc Zyngier <maz@kernel.org>, Oliver Upton <oupton@kernel.org>,
Tianrui Zhao <zhaotianrui@loongson.cn>,
Bibo Mao <maobibo@loongson.cn>,
Huacai Chen <chenhuacai@kernel.org>,
Madhavan Srinivasan <maddy@linux.ibm.com>,
Anup Patel <anup@brainfault.org>, Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Paolo Bonzini <pbonzini@redhat.com>,
Fuad Tabba <fuad.tabba@linux.dev>,
Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
Nicholas Piggin <npiggin@gmail.com>,
Atish Patra <atish.patra@linux.dev>,
Alexandre Ghiti <alex@ghiti.fr>,
linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
kvm@vger.kernel.org, loongarch@lists.linux.dev,
linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org,
linux-kernel@vger.kernel.org,
Stefan Teodorescu <fane@google.com>
Subject: Re: [PATCH 1/7] KVM: s390: Drop unused and unreachable kvm_arch_vcpu_should_kick()
Date: Mon, 2 Nov 2026 07:34:32 -0800 [thread overview]
Message-ID: <auitiPKnFueBJzPA@google.com> (raw)
In-Reply-To: <20261102153228.240804-H-seiden@linux.ibm.com>
On Mon, Nov 02, 2026, Steffen Eiden wrote:
> On Wed, Oct 28, 2026 at 12:02:53PM -0700, Sean Christopherson wrote:
> > Drop s390's kvm_arch_vcpu_should_kick() stub as the one and only call site
> > is wrapped with "#ifndef CONFIG_S390".
>
> In the somehow near future I'll remove those #ifdefs and use the kick
> stuff for kvm_arm64. The native s390 KVM then must at least keep an
> (unused) symbol at hand. It seems that the compiler could not optimize
> those calls away. So let's keep it there so I do not have to re-add it
> soon.
Please read the rest of the series. kvm_arch_vcpu_should_kick() goes away
entirely.
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
next prev parent reply other threads:[~2026-11-02 15:34 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-28 19:02 [PATCH 0/7] KVM: Ensure WAIT requests actually wait Sean Christopherson
2026-10-28 19:02 ` Sean Christopherson
2026-10-28 19:02 ` Sean Christopherson
2026-10-28 19:02 ` [PATCH 1/7] KVM: s390: Drop unused and unreachable kvm_arch_vcpu_should_kick() Sean Christopherson
2026-10-28 19:02 ` Sean Christopherson
2026-10-28 19:02 ` Sean Christopherson
2026-11-02 15:32 ` Steffen Eiden
2026-11-02 15:32 ` Steffen Eiden
2026-11-02 15:32 ` Steffen Eiden
2026-11-02 15:34 ` Sean Christopherson [this message]
2026-11-02 15:34 ` Sean Christopherson
2026-11-02 15:34 ` Sean Christopherson
2026-11-03 11:45 ` Steffen Eiden
2026-11-03 11:45 ` Steffen Eiden
2026-11-03 11:45 ` Steffen Eiden
2026-10-28 19:02 ` [PATCH 2/7] KVM: Add a @force param to __kvm_vcpu_kick() for PPC backwards compatibility Sean Christopherson
2026-10-28 19:02 ` Sean Christopherson
2026-10-28 19:02 ` Sean Christopherson
2026-10-28 19:02 ` [PATCH 3/7] KVM: PPC: Explicitly force IPIs when directly kicking vCPUs Sean Christopherson
2026-10-28 19:02 ` Sean Christopherson
2026-10-28 19:02 ` Sean Christopherson
2026-10-30 14:48 ` Gautam Menghani
2026-10-30 14:48 ` Gautam Menghani
2026-10-30 14:48 ` Gautam Menghani
2026-10-30 18:57 ` Sean Christopherson
2026-10-30 18:57 ` Sean Christopherson
2026-10-30 18:57 ` Sean Christopherson
2026-11-02 14:38 ` Gautam Menghani
2026-11-02 14:38 ` Gautam Menghani
2026-11-02 14:38 ` Gautam Menghani
2026-10-28 19:02 ` [PATCH 4/7] KVM: MIPS: Rework kvm_arch_vcpu_should_kick() to use standard implementation Sean Christopherson
2026-10-28 19:02 ` Sean Christopherson
2026-10-28 19:02 ` Sean Christopherson
2026-10-28 19:02 ` [PATCH 5/7] KVM: Move kvm_arch_vcpu_should_kick() to common code as kvm_vcpu_should_kick() Sean Christopherson
2026-10-28 19:02 ` Sean Christopherson
2026-10-28 19:02 ` Sean Christopherson
2026-10-28 19:02 ` [PATCH 6/7] KVM: Plumb the full request into __kvm_vcpu_kick() Sean Christopherson
2026-10-28 19:02 ` Sean Christopherson
2026-10-28 19:02 ` Sean Christopherson
2026-10-28 19:02 ` [PATCH 7/7] KVM: Drop kvm_vcpu_should_kick() and use kvm_request_needs_ipi() Sean Christopherson
2026-10-28 19:02 ` Sean Christopherson
2026-10-28 19:02 ` Sean Christopherson
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