From: Marc Zyngier <marc.zyngier@arm.com> To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Cc: Christoffer Dall <christoffer.dall@linaro.org>, Eric Auger <eric.auger@redhat.com>, Shanker Donthineni <shankerd@codeaurora.org>, Mark Rutland <mark.rutland@arm.com>, Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>, Andre Przywara <Andre.Przywara@arm.com> Subject: [PATCH v4 00/26] KVM/ARM: Add support for GICv4 Date: Fri, 6 Oct 2017 16:33:35 +0100 [thread overview] Message-ID: <20171006153401.5481-1-marc.zyngier@arm.com> (raw) This series implements full support for GICv4 in KVM, bringing direct injection of MSIs to arm and arm64, assuming you have the right hardware (which is quite unlikely). To get an idea of the design, I'd recommend you start with commit 7954907bedaf as well as patch #26, which try to shed some light on the approach that I've taken. And before that, please digest some of the GICv3/GICv4 architecture documentation[1] (less than 800 pages!). Once you feel reasonably insane, you'll be in the right mood to read the code (no, I didn't bother changing the above, I already hit LWN/QotW once). Now that the low-level irqchip code has been merged, what we have here is only the KVM-specific part. I've lifted two of Eric's patches (having slightly changed one of them) as they form the base of this series. The stack has been *very lightly* tested on an arm64 model, with a PCI virtio block device passed from the host to a guest (using kvmtool and Jean-Philippe Brucker's excellent VFIO support patches[3]), as well as on a Huawei D05 box using an Intel I350 Ethernet card and passing a VF into the guest. So far, things are solid enough (although some HW need workarounds that I'll address separately). I've pushed out a branch based on 4.14-rc3 containing the dependencies: git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git kvm-arm64/gicv4-kvm * From v3: - Lots of cleanups following Christoffer's review - Got rid of all of the irqchip code (well, merged it) - Picked the minimal set of patches from Eric to get this working - Prevent VM save if using GICv4 - Rebased on top of 4.14-rc3 * From v2: - Lots of fixes all over the map (the doorbell code was amazingly wrong, both at the GICv4 level and in KVM) - KVM GICv4 enablement is now gated by a command-line option and defaults to off - Now properly deals with ordering of vITS creation - Some debugging features - More documentation so that I can forget what this is all about - Huawei D05 quirks * From v1: - The bulk of the 30-something initial patches have seen countless bugs being fixed, and some key data structures have been subtly tweaked (or killed altogether). They are still quite similar to what I had in v1 though. - The whole KVM code is brand new and as I said above, only lightly tested. - Collected a bunch a R-bs from Thomas and Eric (many thanks, guys). [1] https://static.docs.arm.com/ihi0069/c/IHI0069C_gic_architecture_specification.pfd [2] http://www.spinics.net/lists/kvm/msg151463.html [3] http://www.spinics.net/lists/kvm/msg151823.html Eric Auger (2): KVM: arm/arm64: register irq bypass consumer on ARM/ARM64 KVM: arm/arm64: vgic: restructure kvm_vgic_(un)map_phys_irq Marc Zyngier (24): KVM: arm: Select ARM_GIC_V3 and ARM_GIC_V3_ITS KVM: arm/arm64: vgic: Move kvm_vgic_destroy call around KVM: arm/arm64: vITS: Add MSI translation helpers KVM: arm/arm64: vITS: Add a helper to update the affinity of an LPI KVM: arm/arm64: GICv4: Add property field and per-VM predicate KVM: arm/arm64: GICv4: Add init/teardown of the per-VM vPE irq domain KVM: arm/arm64: GICv4: Wire mapping/unmapping of VLPIs in VFIO irq bypass KVM: arm/arm64: GICv4: Handle INT command applied to a VLPI KVM: arm/arm64: GICv4: Unmap VLPI when freeing an LPI KVM: arm/arm64: GICv4: Propagate affinity changes to the physical ITS KVM: arm/arm64: GICv4: Handle CLEAR applied to a VLPI KVM: arm/arm64: GICv4: Handle MOVALL applied to a vPE KVM: arm/arm64: GICv4: Propagate property updates to VLPIs KVM: arm/arm64: GICv4: Handle INVALL applied to a vPE KVM: arm/arm64: GICv4: Propagate VLPI properties at map time KVM: arm/arm64: GICv4: Use pending_last as a scheduling hint KVM: arm/arm64: GICv4: Add doorbell interrupt handling KVM: arm/arm64: GICv4: Use the doorbell interrupt as an unblocking source KVM: arm/arm64: GICv4: Hook vPE scheduling into vgic flush/sync KVM: arm/arm64: GICv4: Enable virtual cpuif if VLPIs can be delivered KVM: arm/arm64: GICv4: Prevent a VM using GICv4 from being saved KVM: arm/arm64: GICv4: Enable VLPI support KVM: arm/arm64: GICv4: Prevent heterogenous systems from using GICv4 KVM: arm/arm64: GICv4: Theory of operations Documentation/admin-guide/kernel-parameters.txt | 4 + arch/arm/kvm/Kconfig | 5 + arch/arm/kvm/Makefile | 1 + arch/arm64/kvm/Kconfig | 3 + arch/arm64/kvm/Makefile | 1 + include/kvm/arm_vgic.h | 41 ++- include/linux/irqchip/arm-gic-v3.h | 2 + virt/kvm/arm/arch_timer.c | 24 +- virt/kvm/arm/arm.c | 48 +++- virt/kvm/arm/hyp/vgic-v3-sr.c | 9 +- virt/kvm/arm/vgic/vgic-init.c | 9 + virt/kvm/arm/vgic/vgic-its.c | 195 ++++++++----- virt/kvm/arm/vgic/vgic-mmio-v3.c | 5 + virt/kvm/arm/vgic/vgic-v3.c | 39 ++- virt/kvm/arm/vgic/vgic-v4.c | 361 ++++++++++++++++++++++++ virt/kvm/arm/vgic/vgic.c | 67 ++++- virt/kvm/arm/vgic/vgic.h | 12 + 17 files changed, 713 insertions(+), 113 deletions(-) create mode 100644 virt/kvm/arm/vgic/vgic-v4.c -- 2.14.1
WARNING: multiple messages have this Message-ID (diff)
From: marc.zyngier@arm.com (Marc Zyngier) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 00/26] KVM/ARM: Add support for GICv4 Date: Fri, 6 Oct 2017 16:33:35 +0100 [thread overview] Message-ID: <20171006153401.5481-1-marc.zyngier@arm.com> (raw) This series implements full support for GICv4 in KVM, bringing direct injection of MSIs to arm and arm64, assuming you have the right hardware (which is quite unlikely). To get an idea of the design, I'd recommend you start with commit 7954907bedaf as well as patch #26, which try to shed some light on the approach that I've taken. And before that, please digest some of the GICv3/GICv4 architecture documentation[1] (less than 800 pages!). Once you feel reasonably insane, you'll be in the right mood to read the code (no, I didn't bother changing the above, I already hit LWN/QotW once). Now that the low-level irqchip code has been merged, what we have here is only the KVM-specific part. I've lifted two of Eric's patches (having slightly changed one of them) as they form the base of this series. The stack has been *very lightly* tested on an arm64 model, with a PCI virtio block device passed from the host to a guest (using kvmtool and Jean-Philippe Brucker's excellent VFIO support patches[3]), as well as on a Huawei D05 box using an Intel I350 Ethernet card and passing a VF into the guest. So far, things are solid enough (although some HW need workarounds that I'll address separately). I've pushed out a branch based on 4.14-rc3 containing the dependencies: git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git kvm-arm64/gicv4-kvm * From v3: - Lots of cleanups following Christoffer's review - Got rid of all of the irqchip code (well, merged it) - Picked the minimal set of patches from Eric to get this working - Prevent VM save if using GICv4 - Rebased on top of 4.14-rc3 * From v2: - Lots of fixes all over the map (the doorbell code was amazingly wrong, both at the GICv4 level and in KVM) - KVM GICv4 enablement is now gated by a command-line option and defaults to off - Now properly deals with ordering of vITS creation - Some debugging features - More documentation so that I can forget what this is all about - Huawei D05 quirks * From v1: - The bulk of the 30-something initial patches have seen countless bugs being fixed, and some key data structures have been subtly tweaked (or killed altogether). They are still quite similar to what I had in v1 though. - The whole KVM code is brand new and as I said above, only lightly tested. - Collected a bunch a R-bs from Thomas and Eric (many thanks, guys). [1] https://static.docs.arm.com/ihi0069/c/IHI0069C_gic_architecture_specification.pfd [2] http://www.spinics.net/lists/kvm/msg151463.html [3] http://www.spinics.net/lists/kvm/msg151823.html Eric Auger (2): KVM: arm/arm64: register irq bypass consumer on ARM/ARM64 KVM: arm/arm64: vgic: restructure kvm_vgic_(un)map_phys_irq Marc Zyngier (24): KVM: arm: Select ARM_GIC_V3 and ARM_GIC_V3_ITS KVM: arm/arm64: vgic: Move kvm_vgic_destroy call around KVM: arm/arm64: vITS: Add MSI translation helpers KVM: arm/arm64: vITS: Add a helper to update the affinity of an LPI KVM: arm/arm64: GICv4: Add property field and per-VM predicate KVM: arm/arm64: GICv4: Add init/teardown of the per-VM vPE irq domain KVM: arm/arm64: GICv4: Wire mapping/unmapping of VLPIs in VFIO irq bypass KVM: arm/arm64: GICv4: Handle INT command applied to a VLPI KVM: arm/arm64: GICv4: Unmap VLPI when freeing an LPI KVM: arm/arm64: GICv4: Propagate affinity changes to the physical ITS KVM: arm/arm64: GICv4: Handle CLEAR applied to a VLPI KVM: arm/arm64: GICv4: Handle MOVALL applied to a vPE KVM: arm/arm64: GICv4: Propagate property updates to VLPIs KVM: arm/arm64: GICv4: Handle INVALL applied to a vPE KVM: arm/arm64: GICv4: Propagate VLPI properties at map time KVM: arm/arm64: GICv4: Use pending_last as a scheduling hint KVM: arm/arm64: GICv4: Add doorbell interrupt handling KVM: arm/arm64: GICv4: Use the doorbell interrupt as an unblocking source KVM: arm/arm64: GICv4: Hook vPE scheduling into vgic flush/sync KVM: arm/arm64: GICv4: Enable virtual cpuif if VLPIs can be delivered KVM: arm/arm64: GICv4: Prevent a VM using GICv4 from being saved KVM: arm/arm64: GICv4: Enable VLPI support KVM: arm/arm64: GICv4: Prevent heterogenous systems from using GICv4 KVM: arm/arm64: GICv4: Theory of operations Documentation/admin-guide/kernel-parameters.txt | 4 + arch/arm/kvm/Kconfig | 5 + arch/arm/kvm/Makefile | 1 + arch/arm64/kvm/Kconfig | 3 + arch/arm64/kvm/Makefile | 1 + include/kvm/arm_vgic.h | 41 ++- include/linux/irqchip/arm-gic-v3.h | 2 + virt/kvm/arm/arch_timer.c | 24 +- virt/kvm/arm/arm.c | 48 +++- virt/kvm/arm/hyp/vgic-v3-sr.c | 9 +- virt/kvm/arm/vgic/vgic-init.c | 9 + virt/kvm/arm/vgic/vgic-its.c | 195 ++++++++----- virt/kvm/arm/vgic/vgic-mmio-v3.c | 5 + virt/kvm/arm/vgic/vgic-v3.c | 39 ++- virt/kvm/arm/vgic/vgic-v4.c | 361 ++++++++++++++++++++++++ virt/kvm/arm/vgic/vgic.c | 67 ++++- virt/kvm/arm/vgic/vgic.h | 12 + 17 files changed, 713 insertions(+), 113 deletions(-) create mode 100644 virt/kvm/arm/vgic/vgic-v4.c -- 2.14.1
next reply other threads:[~2017-10-06 15:34 UTC|newest] Thread overview: 117+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-10-06 15:33 Marc Zyngier [this message] 2017-10-06 15:33 ` [PATCH v4 00/26] KVM/ARM: Add support for GICv4 Marc Zyngier 2017-10-06 15:33 ` [PATCH v4 01/26] KVM: arm/arm64: register irq bypass consumer on ARM/ARM64 Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-06 15:33 ` [PATCH v4 02/26] KVM: arm/arm64: vgic: restructure kvm_vgic_(un)map_phys_irq Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-25 14:44 ` Christoffer Dall 2017-10-25 14:44 ` Christoffer Dall 2017-10-26 13:05 ` Marc Zyngier 2017-10-26 13:05 ` Marc Zyngier 2017-10-06 15:33 ` [PATCH v4 03/26] KVM: arm: Select ARM_GIC_V3 and ARM_GIC_V3_ITS Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-06 15:33 ` [PATCH v4 04/26] KVM: arm/arm64: vgic: Move kvm_vgic_destroy call around Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-06 15:33 ` [PATCH v4 05/26] KVM: arm/arm64: vITS: Add MSI translation helpers Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-06 15:33 ` [PATCH v4 06/26] KVM: arm/arm64: vITS: Add a helper to update the affinity of an LPI Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-25 14:50 ` Christoffer Dall 2017-10-25 14:50 ` Christoffer Dall 2017-10-06 15:33 ` [PATCH v4 07/26] KVM: arm/arm64: GICv4: Add property field and per-VM predicate Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-25 14:54 ` Christoffer Dall 2017-10-25 14:54 ` Christoffer Dall 2017-10-06 15:33 ` [PATCH v4 08/26] KVM: arm/arm64: GICv4: Add init/teardown of the per-VM vPE irq domain Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-25 15:46 ` Christoffer Dall 2017-10-25 15:46 ` Christoffer Dall 2017-10-06 15:33 ` [PATCH v4 09/26] KVM: arm/arm64: GICv4: Wire mapping/unmapping of VLPIs in VFIO irq bypass Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-25 15:58 ` Christoffer Dall 2017-10-25 15:58 ` Christoffer Dall 2017-10-06 15:33 ` [PATCH v4 10/26] KVM: arm/arm64: GICv4: Handle INT command applied to a VLPI Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-06 15:33 ` [PATCH v4 11/26] KVM: arm/arm64: GICv4: Unmap VLPI when freeing an LPI Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-06 15:33 ` [PATCH v4 12/26] KVM: arm/arm64: GICv4: Propagate affinity changes to the physical ITS Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-25 16:22 ` Christoffer Dall 2017-10-25 16:22 ` Christoffer Dall 2017-10-06 15:33 ` [PATCH v4 13/26] KVM: arm/arm64: GICv4: Handle CLEAR applied to a VLPI Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-06 15:33 ` [PATCH v4 14/26] KVM: arm/arm64: GICv4: Handle MOVALL applied to a vPE Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-25 16:27 ` Christoffer Dall 2017-10-25 16:27 ` Christoffer Dall 2017-10-06 15:33 ` [PATCH v4 15/26] KVM: arm/arm64: GICv4: Propagate property updates to VLPIs Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-06 15:33 ` [PATCH v4 16/26] KVM: arm/arm64: GICv4: Handle INVALL applied to a vPE Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-06 15:33 ` [PATCH v4 17/26] KVM: arm/arm64: GICv4: Propagate VLPI properties at map time Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-25 16:48 ` Christoffer Dall 2017-10-25 16:48 ` Christoffer Dall 2017-10-25 17:01 ` Marc Zyngier 2017-10-25 17:01 ` Marc Zyngier 2017-10-26 8:21 ` Marc Zyngier 2017-10-26 8:21 ` Marc Zyngier 2017-10-06 15:33 ` [PATCH v4 18/26] KVM: arm/arm64: GICv4: Use pending_last as a scheduling hint Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-06 15:33 ` [PATCH v4 19/26] KVM: arm/arm64: GICv4: Add doorbell interrupt handling Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-26 14:28 ` Christoffer Dall 2017-10-26 14:28 ` Christoffer Dall 2017-10-26 15:25 ` Christoffer Dall 2017-10-26 15:25 ` Christoffer Dall 2017-10-06 15:33 ` [PATCH v4 20/26] KVM: arm/arm64: GICv4: Use the doorbell interrupt as an unblocking source Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-06 15:33 ` [PATCH v4 21/26] KVM: arm/arm64: GICv4: Hook vPE scheduling into vgic flush/sync Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-26 15:24 ` Christoffer Dall 2017-10-26 15:24 ` Christoffer Dall 2017-10-06 15:33 ` [PATCH v4 22/26] KVM: arm/arm64: GICv4: Enable virtual cpuif if VLPIs can be delivered Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-06 15:33 ` [PATCH v4 23/26] KVM: arm/arm64: GICv4: Prevent a VM using GICv4 from being saved Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-26 15:28 ` Christoffer Dall 2017-10-26 15:28 ` Christoffer Dall 2017-10-27 13:56 ` Marc Zyngier 2017-10-27 13:56 ` Marc Zyngier 2017-10-30 6:48 ` Christoffer Dall 2017-10-30 6:48 ` Christoffer Dall 2017-10-06 15:33 ` [PATCH v4 24/26] KVM: arm/arm64: GICv4: Enable VLPI support Marc Zyngier 2017-10-06 15:33 ` Marc Zyngier 2017-10-06 15:34 ` [PATCH v4 25/26] KVM: arm/arm64: GICv4: Prevent heterogenous systems from using GICv4 Marc Zyngier 2017-10-06 15:34 ` Marc Zyngier 2017-10-26 15:31 ` Christoffer Dall 2017-10-26 15:31 ` Christoffer Dall 2017-10-26 15:48 ` Mark Rutland 2017-10-26 15:48 ` Mark Rutland 2017-10-27 6:57 ` Marc Zyngier 2017-10-27 6:57 ` Marc Zyngier 2017-10-27 6:57 ` Marc Zyngier 2017-10-27 7:37 ` Mark Rutland 2017-10-27 7:37 ` Mark Rutland 2017-10-27 7:59 ` Marc Zyngier 2017-10-27 7:59 ` Marc Zyngier 2017-10-27 7:59 ` Marc Zyngier 2017-10-27 8:04 ` Mark Rutland 2017-10-27 8:04 ` Mark Rutland 2017-10-27 8:31 ` Marc Zyngier 2017-10-27 8:31 ` Marc Zyngier 2017-10-27 8:31 ` Marc Zyngier 2017-10-29 2:16 ` Christoffer Dall 2017-10-29 2:16 ` Christoffer Dall 2017-10-06 15:34 ` [PATCH v4 26/26] KVM: arm/arm64: GICv4: Theory of operations Marc Zyngier 2017-10-06 15:34 ` Marc Zyngier 2017-10-26 15:32 ` Christoffer Dall 2017-10-26 15:32 ` Christoffer Dall 2017-10-08 16:45 ` [PATCH v4 00/26] KVM/ARM: Add support for GICv4 Shanker Donthineni 2017-10-08 16:45 ` Shanker Donthineni 2017-10-09 17:52 ` Konrad Rzeszutek Wilk 2017-10-09 17:52 ` Konrad Rzeszutek Wilk 2017-10-09 18:02 ` Marc Zyngier 2017-10-09 18:02 ` Marc Zyngier 2017-10-19 15:48 ` [PATCH v4 27/26] KVM: arm/arm64: GICv4: Prevent userspace from changing doorbell affinity Marc Zyngier 2017-10-19 15:48 ` 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=20171006153401.5481-1-marc.zyngier@arm.com \ --to=marc.zyngier@arm.com \ --cc=Andre.Przywara@arm.com \ --cc=christoffer.dall@linaro.org \ --cc=eric.auger@redhat.com \ --cc=kvm@vger.kernel.org \ --cc=kvmarm@lists.cs.columbia.edu \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=mark.rutland@arm.com \ --cc=shameerali.kolothum.thodi@huawei.com \ --cc=shankerd@codeaurora.org \ /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: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.