From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org
Cc: 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>,
Zenghui Yu <yuzenghui@huawei.com>,
Jayachandran C <jnair@marvell.com>,
Robert Richter <rrichter@marvell.com>
Subject: [PATCH v2 00/36] irqchip/gic-v4: GICv4.1 architecture support
Date: Sun, 27 Oct 2019 14:41:58 +0000 [thread overview]
Message-ID: <20191027144234.8395-1-maz@kernel.org> (raw)
This rather long series expands the existing GICv4 support to deal with the
new GICv4.1 architecture, which comes with a set of major improvements
compared to v4.0:
- One architectural doorbell per vcpu, instead of one doorbell per VLPI
- Doorbell entirely managed by the HW, with an "at most once" delivery
guarantee per non-residency phase and only when requested by the
hypervisor
- A shared memory scheme between ITSs and redistributors, allowing for an
optimised residency sequence (the use of VMOVP becomes less frequent)
- Support for direct virtual SGI delivery (the injection path still involves
the hypervisor), at the cost of losing the active state on SGIs. It
shouldn't be a big deal, but some guest operating systems might notice
(Linux definitely won't care)
On the other hand, public documentation is not available yet, so that's a
bit annoying...
The series is roughly organised in 5 parts:
(1) A bunch of reworks to make the checking of some features more
straightforward,
(2) VPE table allocation, new flavours of VMAPP/VMOVP commands
(3) v4.1 doorbell management
(4) Virtual SGI support
(5) Plumbing of virtual SGIs in KVM
Notes:
- This series has uncovered a behaviour that looks like a HW bug on
the Cavium ThunderX (aka TX1) platform (see patch #10). I'd very
much welcome some clarification from the Marvell/Cavium folks on
Cc, as well as an official erratum number if this happens to be an
actual bug
- I plan to take the first seven patches into 5.5 in order to reduce
the size of the backlog:
* patch #1 and #3 are good performance optimisations
* patches #4 through to #7 are nice cleanups
Do shout if you see any issue with this.
* From v1:
- A bunch of minor reworks after Zenghui Yu's review
- A workaround for what looks like a new and unexpected TX1 bug
- A subtle reorder of the series so that some patches can go in early
Marc Zyngier (36):
KVM: arm64: vgic-v4: Move the GICv4 residency flow to be driven by
vcpu_load/put
irqchip/gic-v3-its: Factor out wait_for_syncr primitive
irqchip/gic-v3-its: Allow LPI invalidation via the DirectLPI interface
irqchip/gic-v3-its: Make is_v4 use a TYPER copy
irqchip/gic-v3-its: Kill its->ite_size and use TYPER copy instead
irqchip/gic-v3-its: Kill its->device_ids and use TYPER copy instead
irqchip/gic-v3-its: Add get_vlpi_map() helper
irqchip/gic-v3: Detect GICv4.1 supporting RVPEID
irqchip/gic-v3: Add GICv4.1 VPEID size discovery
irqchip/gic-v3: Workaround Cavium TX1 erratum when reading GICD_TYPER2
irqchip/gic-v4.1: VPE table (aka GICR_VPROPBASER) allocation
irqchip/gic-v4.1: Implement the v4.1 flavour of VMAPP
irqchip/gic-v4.1: Don't use the VPE proxy if RVPEID is set
irqchip/gic-v4.1: Implement the v4.1 flavour of VMOVP
irqchip/gic-v4.1: Plumb skeletal VPE irqchip
irqchip/gic-v4.1: Add mask/unmask doorbell callbacks
irqchip/gic-v4.1: Add VPE residency callback
irqchip/gic-v4.1: Add VPE eviction callback
irqchip/gic-v4.1: Add VPE INVALL callback
irqchip/gic-v4.1: Suppress per-VLPI doorbell
irqchip/gic-v4.1: Allow direct invalidation of VLPIs
irqchip/gic-v4.1: Advertise support v4.1 to KVM
irqchip/gic-v4.1: Map the ITS SGIR register page
irqchip/gic-v4.1: Plumb skeletal VSGI irqchip
irqchip/gic-v4.1: Add initial SGI configuration
irqchip/gic-v4.1: Plumb mask/unmask SGI callbacks
irqchip/gic-v4.1: Plumb get/set_irqchip_state SGI callbacks
irqchip/gic-v4.1: Plumb set_vcpu_affinity SGI callbacks
irqchip/gic-v4.1: Move doorbell management to the GICv4 abstraction
layer
irqchip/gic-v4.1: Add VSGI allocation/teardown
irqchip/gic-v4.1: Add VSGI property setup
irqchip/gic-v4.1: Eagerly vmap vPEs
KVM: arm64: GICv4.1: Let doorbells be auto-enabled
KVM: arm64: GICv4.1: Add direct injection capability to SGI registers
KVM: arm64: GICv4.1: Configure SGIs as HW interrupts
KVM: arm64: GICv4.1: Expose HW-based SGIs in debugfs
arch/arm/include/asm/arch_gicv3.h | 2 +
arch/arm64/include/asm/arch_gicv3.h | 1 +
drivers/irqchip/irq-gic-v3-its.c | 1102 +++++++++++++++++++++---
drivers/irqchip/irq-gic-v3.c | 46 +-
drivers/irqchip/irq-gic-v4.c | 143 ++-
include/kvm/arm_vgic.h | 5 +-
include/linux/irqchip/arm-gic-common.h | 2 +
include/linux/irqchip/arm-gic-v3.h | 75 +-
include/linux/irqchip/arm-gic-v4.h | 45 +-
virt/kvm/arm/arm.c | 12 +-
virt/kvm/arm/vgic/vgic-debug.c | 14 +-
virt/kvm/arm/vgic/vgic-mmio-v3.c | 15 +-
virt/kvm/arm/vgic/vgic-mmio.c | 88 +-
virt/kvm/arm/vgic/vgic-v3.c | 5 +
virt/kvm/arm/vgic/vgic-v4.c | 106 ++-
virt/kvm/arm/vgic/vgic.c | 4 -
virt/kvm/arm/vgic/vgic.h | 2 -
17 files changed, 1492 insertions(+), 175 deletions(-)
--
2.20.1
next reply other threads:[~2019-10-27 14:43 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-27 14:41 Marc Zyngier [this message]
2019-10-27 14:41 ` [PATCH v2 01/36] KVM: arm64: vgic-v4: Move the GICv4 residency flow to be driven by vcpu_load/put Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 02/36] irqchip/gic-v3-its: Factor out wait_for_syncr primitive Marc Zyngier
2019-10-28 9:20 ` Zenghui Yu
2019-11-20 13:21 ` [tip: irq/core] " tip-bot2 for Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 03/36] irqchip/gic-v3-its: Allow LPI invalidation via the DirectLPI interface Marc Zyngier
2019-10-31 8:49 ` Zenghui Yu
2019-11-01 13:26 ` Marc Zyngier
2019-11-05 10:30 ` Zenghui Yu
2019-11-05 12:12 ` Marc Zyngier
2019-11-20 13:21 ` [tip: irq/core] " tip-bot2 for Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 04/36] irqchip/gic-v3-its: Make is_v4 use a TYPER copy Marc Zyngier
2019-10-28 9:34 ` Zenghui Yu
2019-10-28 10:52 ` Marc Zyngier
2019-11-20 13:21 ` [tip: irq/core] " tip-bot2 for Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 05/36] irqchip/gic-v3-its: Kill its->ite_size and use TYPER copy instead Marc Zyngier
2019-10-28 9:40 ` Zenghui Yu
2019-11-20 13:21 ` [tip: irq/core] " tip-bot2 for Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 06/36] irqchip/gic-v3-its: Kill its->device_ids " Marc Zyngier
2019-10-31 6:33 ` Zenghui Yu
2019-10-31 8:30 ` Marc Zyngier
2019-10-31 9:08 ` Zenghui Yu
2019-11-20 13:21 ` [tip: irq/core] " tip-bot2 for Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 07/36] irqchip/gic-v3-its: Add get_vlpi_map() helper Marc Zyngier
2019-10-31 3:54 ` Zenghui Yu
2019-11-20 13:21 ` [tip: irq/core] irqchip/gic-v3-its: Add its_vlpi_map helpers tip-bot2 for Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 08/36] irqchip/gic-v3: Detect GICv4.1 supporting RVPEID Marc Zyngier
2019-10-31 11:34 ` Zenghui Yu
2019-10-27 14:42 ` [PATCH v2 09/36] irqchip/gic-v3: Add GICv4.1 VPEID size discovery Marc Zyngier
2019-10-31 12:02 ` Zenghui Yu
2019-11-01 15:13 ` Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 10/36] irqchip/gic-v3: Workaround Cavium TX1 erratum when reading GICD_TYPER2 Marc Zyngier
2020-03-15 9:55 ` [tip: irq/urgent] irqchip/gic-v3: Workaround Cavium erratum 38539 " tip-bot2 for Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 11/36] irqchip/gic-v4.1: VPE table (aka GICR_VPROPBASER) allocation Marc Zyngier
2019-12-24 7:10 ` Zenghui Yu
2019-12-24 9:19 ` Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 12/36] irqchip/gic-v4.1: Implement the v4.1 flavour of VMAPP Marc Zyngier
2019-11-01 10:58 ` Zenghui Yu
2019-11-13 8:02 ` Zenghui Yu
2019-11-13 9:47 ` Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 13/36] irqchip/gic-v4.1: Don't use the VPE proxy if RVPEID is set Marc Zyngier
2019-11-01 11:05 ` Zenghui Yu
2019-12-18 14:39 ` Marc Zyngier
2019-12-19 3:05 ` Zenghui Yu
2019-10-27 14:42 ` [PATCH v2 14/36] irqchip/gic-v4.1: Implement the v4.1 flavour of VMOVP Marc Zyngier
2019-11-01 11:10 ` Zenghui Yu
2019-10-27 14:42 ` [PATCH v2 15/36] irqchip/gic-v4.1: Plumb skeletal VPE irqchip Marc Zyngier
2019-11-01 11:13 ` Zenghui Yu
2019-10-27 14:42 ` [PATCH v2 16/36] irqchip/gic-v4.1: Add mask/unmask doorbell callbacks Marc Zyngier
2019-11-01 11:23 ` Zenghui Yu
2019-12-18 15:06 ` Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 17/36] irqchip/gic-v4.1: Add VPE residency callback Marc Zyngier
2019-11-01 11:34 ` Zenghui Yu
2019-10-27 14:42 ` [PATCH v2 18/36] irqchip/gic-v4.1: Add VPE eviction callback Marc Zyngier
2019-11-01 11:39 ` Zenghui Yu
2019-10-27 14:42 ` [PATCH v2 19/36] irqchip/gic-v4.1: Add VPE INVALL callback Marc Zyngier
2019-11-01 11:51 ` Zenghui Yu
2019-12-18 14:18 ` Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 20/36] irqchip/gic-v4.1: Suppress per-VLPI doorbell Marc Zyngier
2019-11-01 12:17 ` Zenghui Yu
2019-10-27 14:42 ` [PATCH v2 21/36] irqchip/gic-v4.1: Allow direct invalidation of VLPIs Marc Zyngier
2019-11-01 12:30 ` Zenghui Yu
2019-10-27 14:42 ` [PATCH v2 22/36] irqchip/gic-v4.1: Advertise support v4.1 to KVM Marc Zyngier
2019-11-01 12:55 ` Zenghui Yu
2019-12-18 14:48 ` Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 23/36] irqchip/gic-v4.1: Map the ITS SGIR register page Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 24/36] irqchip/gic-v4.1: Plumb skeletal VSGI irqchip Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 25/36] irqchip/gic-v4.1: Add initial SGI configuration Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 26/36] irqchip/gic-v4.1: Plumb mask/unmask SGI callbacks Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 27/36] irqchip/gic-v4.1: Plumb get/set_irqchip_state " Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 28/36] irqchip/gic-v4.1: Plumb set_vcpu_affinity " Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 29/36] irqchip/gic-v4.1: Move doorbell management to the GICv4 abstraction layer Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 30/36] irqchip/gic-v4.1: Add VSGI allocation/teardown Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 31/36] irqchip/gic-v4.1: Add VSGI property setup Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 32/36] irqchip/gic-v4.1: Eagerly vmap vPEs Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 33/36] KVM: arm64: GICv4.1: Let doorbells be auto-enabled Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 34/36] KVM: arm64: GICv4.1: Add direct injection capability to SGI registers Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 35/36] KVM: arm64: GICv4.1: Configure SGIs as HW interrupts Marc Zyngier
2019-10-27 14:42 ` [PATCH v2 36/36] KVM: arm64: GICv4.1: Expose HW-based SGIs in debugfs Marc Zyngier
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20191027144234.8395-1-maz@kernel.org \
--to=maz@kernel.org \
--cc=Andrew.Murray@arm.com \
--cc=eric.auger@redhat.com \
--cc=james.morse@arm.com \
--cc=jason@lakedaemon.net \
--cc=jnair@marvell.com \
--cc=julien.thierry.kdev@gmail.com \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=linux-kernel@vger.kernel.org \
--cc=lorenzo.pieralisi@arm.com \
--cc=rrichter@marvell.com \
--cc=suzuki.poulose@arm.com \
--cc=tglx@linutronix.de \
--cc=yuzenghui@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).