From: Marc Zyngier <maz@kernel.org> To: Zenghui Yu <yuzenghui@huawei.com> Cc: <kvmarm@lists.cs.columbia.edu>, <linux-kernel@vger.kernel.org>, Eric Auger <eric.auger@redhat.com>, James Morse <james.morse@arm.com>, Julien Thierry <julien.thierry.kdev@gmail.com>, Suzuki K Poulose <suzuki.poulose@arm.com>, Thomas Gleixner <tglx@linutronix.de>, Jason Cooper <jason@lakedaemon.net>, Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, "Andrew Murray" <Andrew.Murray@arm.com>, Robert Richter <rrichter@marvell.com> Subject: Re: [PATCH v3 28/32] KVM: arm64: GICv4.1: Add direct injection capability to SGI registers Date: Sat, 28 Dec 2019 10:41:47 +0000 [thread overview] Message-ID: <20191228104147.0e658aa9@why> (raw) In-Reply-To: <c009fb1f-f4ec-22d5-ba7d-58426837c8af@huawei.com> On Sat, 28 Dec 2019 17:19:36 +0800 Zenghui Yu <yuzenghui@huawei.com> wrote: > Hi Marc, > > On 2019/12/24 19:10, Marc Zyngier wrote: > > Most of the GICv3 emulation code that deals with SGIs now has to be > > aware of the v4.1 capabilities in order to benefit from it. > > > > Add such support, keyed on the interrupt having the hw flag set and > > being a SGI. > > > > Signed-off-by: Marc Zyngier <maz@kernel.org> > > --- > > > diff --git a/virt/kvm/arm/vgic/vgic-mmio.c b/virt/kvm/arm/vgic/vgic-mmio.c > > index 0d090482720d..6ebf747a7806 100644 > > --- a/virt/kvm/arm/vgic/vgic-mmio.c > > +++ b/virt/kvm/arm/vgic/vgic-mmio.c > > @@ -290,6 +345,20 @@ void vgic_mmio_write_cpending(struct kvm_vcpu *vcpu, > > > raw_spin_lock_irqsave(&irq->irq_lock, flags); > > > + if (irq->hw && vgic_irq_is_sgi(irq->intid)) { > > + /* HW SGI? Ask the GIC to inject it */ > > Shouldn't this be "Ask the GIC to clear its pending state"? yeah, a silly copy-paste mistake, thanks for spotting this! > Otherwise looks good! Thanks for taking the time to review this work! M. -- Jazz is not dead. It just smells funny...
WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org> To: Zenghui Yu <yuzenghui@huawei.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, Jason Cooper <jason@lakedaemon.net>, linux-kernel@vger.kernel.org, Robert Richter <rrichter@marvell.com>, Thomas Gleixner <tglx@linutronix.de>, kvmarm@lists.cs.columbia.edu Subject: Re: [PATCH v3 28/32] KVM: arm64: GICv4.1: Add direct injection capability to SGI registers Date: Sat, 28 Dec 2019 10:41:47 +0000 [thread overview] Message-ID: <20191228104147.0e658aa9@why> (raw) In-Reply-To: <c009fb1f-f4ec-22d5-ba7d-58426837c8af@huawei.com> On Sat, 28 Dec 2019 17:19:36 +0800 Zenghui Yu <yuzenghui@huawei.com> wrote: > Hi Marc, > > On 2019/12/24 19:10, Marc Zyngier wrote: > > Most of the GICv3 emulation code that deals with SGIs now has to be > > aware of the v4.1 capabilities in order to benefit from it. > > > > Add such support, keyed on the interrupt having the hw flag set and > > being a SGI. > > > > Signed-off-by: Marc Zyngier <maz@kernel.org> > > --- > > > diff --git a/virt/kvm/arm/vgic/vgic-mmio.c b/virt/kvm/arm/vgic/vgic-mmio.c > > index 0d090482720d..6ebf747a7806 100644 > > --- a/virt/kvm/arm/vgic/vgic-mmio.c > > +++ b/virt/kvm/arm/vgic/vgic-mmio.c > > @@ -290,6 +345,20 @@ void vgic_mmio_write_cpending(struct kvm_vcpu *vcpu, > > > raw_spin_lock_irqsave(&irq->irq_lock, flags); > > > + if (irq->hw && vgic_irq_is_sgi(irq->intid)) { > > + /* HW SGI? Ask the GIC to inject it */ > > Shouldn't this be "Ask the GIC to clear its pending state"? yeah, a silly copy-paste mistake, thanks for spotting this! > Otherwise looks good! Thanks for taking the time to review this work! M. -- Jazz is not dead. It just smells funny... _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
next prev parent reply other threads:[~2019-12-28 10:41 UTC|newest] Thread overview: 119+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-12-24 11:10 [PATCH v3 00/32] irqchip/gic-v4: GICv4.1 architecture support Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 01/32] irqchip/gic-v3: Detect GICv4.1 supporting RVPEID Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2020-01-24 19:11 ` [tip: irq/core] " tip-bot2 for Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 02/32] irqchip/gic-v3: Add GICv4.1 VPEID size discovery Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2020-01-24 19:11 ` [tip: irq/core] " tip-bot2 for Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 03/32] irqchip/gic-v3: Workaround Cavium TX1 erratum when reading GICD_TYPER2 Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2020-03-09 22:11 ` Robert Richter 2020-03-09 22:11 ` Robert Richter 2020-03-10 11:41 ` Marc Zyngier 2020-03-10 11:41 ` Marc Zyngier 2020-03-10 12:34 ` Robert Richter 2020-03-10 12:34 ` Robert Richter 2020-03-11 8:45 ` Robert Richter 2020-03-11 8:45 ` Robert Richter 2020-03-11 9:03 ` Marc Zyngier 2020-03-11 9:03 ` Marc Zyngier 2020-03-11 9:18 ` Robert Richter 2020-03-11 9:18 ` Robert Richter 2019-12-24 11:10 ` [PATCH v3 04/32] irqchip/gic-v3: Use SGIs without active state if offered Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-28 8:56 ` Zenghui Yu 2019-12-28 8:56 ` Zenghui Yu 2019-12-28 10:36 ` Marc Zyngier 2019-12-28 10:36 ` Marc Zyngier 2019-12-30 3:50 ` Zenghui Yu 2019-12-30 3:50 ` Zenghui Yu 2019-12-24 11:10 ` [PATCH v3 05/32] irqchip/gic-v4.1: VPE table (aka GICR_VPROPBASER) allocation Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2020-01-20 14:03 ` Zenghui Yu 2020-01-20 14:03 ` Zenghui Yu 2020-01-20 15:11 ` Marc Zyngier 2020-01-20 15:11 ` Marc Zyngier 2020-01-22 2:59 ` Zenghui Yu 2020-01-22 2:59 ` Zenghui Yu 2020-01-24 19:11 ` [tip: irq/core] " tip-bot2 for Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 06/32] irqchip/gic-v4.1: Implement the v4.1 flavour of VMAPP Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2020-01-24 19:11 ` [tip: irq/core] " tip-bot2 for Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 07/32] irqchip/gic-v4.1: Don't use the VPE proxy if RVPEID is set Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2020-01-24 19:11 ` [tip: irq/core] " tip-bot2 for Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 08/32] irqchip/gic-v4.1: Implement the v4.1 flavour of VMOVP Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2020-01-24 19:11 ` [tip: irq/core] " tip-bot2 for Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 09/32] irqchip/gic-v4.1: Plumb skeletal VPE irqchip Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2020-01-24 19:11 ` [tip: irq/core] " tip-bot2 for Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 10/32] irqchip/gic-v4.1: Add mask/unmask doorbell callbacks Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2020-01-24 19:11 ` [tip: irq/core] " tip-bot2 for Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 11/32] irqchip/gic-v4.1: Add VPE residency callback Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2020-01-24 19:11 ` [tip: irq/core] " tip-bot2 for Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 12/32] irqchip/gic-v4.1: Add VPE eviction callback Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2020-01-24 19:11 ` [tip: irq/core] " tip-bot2 for Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 13/32] irqchip/gic-v4.1: Add VPE INVALL callback Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2020-01-24 19:11 ` [tip: irq/core] " tip-bot2 for Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 14/32] irqchip/gic-v4.1: Suppress per-VLPI doorbell Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2020-01-24 19:11 ` [tip: irq/core] " tip-bot2 for Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 15/32] irqchip/gic-v4.1: Allow direct invalidation of VLPIs Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2020-01-24 19:11 ` [tip: irq/core] " tip-bot2 for Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 16/32] irqchip/gic-v4.1: Advertise support v4.1 to KVM Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 17/32] irqchip/gic-v4.1: Map the ITS SGIR register page Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 18/32] irqchip/gic-v4.1: Plumb skeletal VSGI irqchip Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 19/32] irqchip/gic-v4.1: Add initial SGI configuration Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 20/32] irqchip/gic-v4.1: Plumb mask/unmask SGI callbacks Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 21/32] irqchip/gic-v4.1: Plumb get/set_irqchip_state " Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 22/32] irqchip/gic-v4.1: Plumb set_vcpu_affinity " Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 23/32] irqchip/gic-v4.1: Move doorbell management to the GICv4 abstraction layer Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 24/32] irqchip/gic-v4.1: Add VSGI allocation/teardown Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 25/32] irqchip/gic-v4.1: Add VSGI property setup Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 26/32] irqchip/gic-v4.1: Eagerly vmap vPEs Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 27/32] KVM: arm64: GICv4.1: Let doorbells be auto-enabled Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 28/32] KVM: arm64: GICv4.1: Add direct injection capability to SGI registers Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-28 9:19 ` Zenghui Yu 2019-12-28 9:19 ` Zenghui Yu 2019-12-28 10:41 ` Marc Zyngier [this message] 2019-12-28 10:41 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 29/32] KVM: arm64: GICv4.1: Allow SGIs to switch between HW and SW interrupts Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2020-01-15 2:49 ` Shaokun Zhang 2020-01-15 2:49 ` Shaokun Zhang 2020-01-15 3:49 ` Zenghui Yu 2020-01-15 3:49 ` Zenghui Yu 2020-01-15 13:32 ` Marc Zyngier 2020-01-15 13:32 ` Marc Zyngier 2020-01-15 13:49 ` Zenghui Yu 2020-01-15 13:49 ` Zenghui Yu 2020-01-16 6:13 ` Shaokun Zhang 2020-01-16 6:13 ` Shaokun Zhang 2020-01-15 13:17 ` Marc Zyngier 2020-01-15 13:17 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 30/32] KVM: arm64: GICv4.1: Plumb SGI implementation selection in the distributor Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 31/32] KVM: arm64: GICv4.1: Reload VLPI configuration on distributor enable/disable Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier 2019-12-24 11:10 ` [PATCH v3 32/32] KVM: arm64: GICv4.1: Expose HW-based SGIs in debugfs Marc Zyngier 2019-12-24 11:10 ` Marc Zyngier
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