| Message ID | 20250225172930.1850838-1-maz@kernel.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | KVM: arm64: Add NV GICv3 support | expand |
On Tue, 25 Feb 2025 17:29:14 +0000, Marc Zyngier wrote: > Here's a respin of the NV support for GICv3. The integration branch > containing this (and the rest of the NV stack) is still at [4]. > > At this stage, I think this is good to go. > > * From v3 [3]: > > [...] Fixed up a few typos here but overall this is in great shape, thank you. Applied to next, thanks! [01/16] arm64: sysreg: Add layout for ICH_HCR_EL2 https://git.kernel.org/kvmarm/kvmarm/c/22513c0d2ad8 [02/16] arm64: sysreg: Add layout for ICH_VTR_EL2 https://git.kernel.org/kvmarm/kvmarm/c/5815fb82dc67 [03/16] arm64: sysreg: Add layout for ICH_MISR_EL2 https://git.kernel.org/kvmarm/kvmarm/c/b7a252e881f3 [04/16] KVM: arm64: nv: Load timer before the GIC https://git.kernel.org/kvmarm/kvmarm/c/16abeb60be62 [05/16] KVM: arm64: nv: Add ICH_*_EL2 registers to vpcu_sysreg https://git.kernel.org/kvmarm/kvmarm/c/182f1596941e [06/16] KVM: arm64: nv: Plumb handling of GICv3 EL2 accesses https://git.kernel.org/kvmarm/kvmarm/c/96c2f03311de [07/16] KVM: arm64: nv: Sanitise ICH_HCR_EL2 accesses https://git.kernel.org/kvmarm/kvmarm/c/21d29cd814d7 [08/16] KVM: arm64: nv: Nested GICv3 emulation https://git.kernel.org/kvmarm/kvmarm/c/146a050f2d8c [09/16] KVM: arm64: nv: Handle L2->L1 transition on interrupt injection https://git.kernel.org/kvmarm/kvmarm/c/4b1b97f0d7cf [10/16] KVM: arm64: nv: Add Maintenance Interrupt emulation https://git.kernel.org/kvmarm/kvmarm/c/201c8d40dde9 [11/16] KVM: arm64: nv: Respect virtual HCR_EL2.TWx setting https://git.kernel.org/kvmarm/kvmarm/c/69c9176c3862 [12/16] KVM: arm64: nv: Request vPE doorbell upon nested ERET to L2 https://git.kernel.org/kvmarm/kvmarm/c/93078ae63f20 [13/16] KVM: arm64: nv: Propagate used_lrs between L1 and L0 contexts https://git.kernel.org/kvmarm/kvmarm/c/7682c023212e [14/16] KVM: arm64: nv: Fold GICv3 host trapping requirements into guest setup https://git.kernel.org/kvmarm/kvmarm/c/89896cc15911 [15/16] KVM: arm64: nv: Allow userland to set VGIC maintenance IRQ https://git.kernel.org/kvmarm/kvmarm/c/faf7714a47a2 [16/16] KVM: arm64: nv: Fail KVM init if asking for NV without GICv3 https://git.kernel.org/kvmarm/kvmarm/c/83c6cb20147b -- Best, Oliver
Here's a respin of the NV support for GICv3. The integration branch containing this (and the rest of the NV stack) is still at [4]. At this stage, I think this is good to go. * From v3 [3]: - Added a comment indicating the relative priority of L2->L1 IRQ handling as a request - Rebased on 6.14-rc3 * From v2 [2]: - Picked RBs from Andre, with thanks - Rebased on 6.14-rc1 * From v1 [1]: - Fix the default value for the MI INTID to PPI9, instead of something fairly random... - Fail KVM initialisation if asking for NV on HW without a virtual GICv3. [1] https://lore.kernel.org/r/20241217151331.934077-1-maz@kernel.org [2] https://lore.kernel.org/r/20250112170845.1181891-1-maz@kernel.org [3] https://lore.kernel.org/r/20250206154925.1109065-14-maz@kernel.org [4] https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/log/?h=kvm-arm64/nv-next Andre Przywara (1): KVM: arm64: nv: Allow userland to set VGIC maintenance IRQ Jintack Lim (1): KVM: arm64: nv: Respect virtual HCR_EL2.TWx setting Marc Zyngier (13): arm64: sysreg: Add layout for ICH_HCR_EL2 arm64: sysreg: Add layout for ICH_VTR_EL2 arm64: sysreg: Add layout for ICH_MISR_EL2 KVM: arm64: nv: Load timer before the GIC KVM: arm64: nv: Add ICH_*_EL2 registers to vpcu_sysreg KVM: arm64: nv: Plumb handling of GICv3 EL2 accesses KVM: arm64: nv: Sanitise ICH_HCR_EL2 accesses KVM: arm64: nv: Nested GICv3 emulation KVM: arm64: nv: Handle L2->L1 transition on interrupt injection KVM: arm64: nv: Add Maintenance Interrupt emulation KVM: arm64: nv: Propagate used_lrs between L1 and L0 contexts KVM: arm64: nv: Fold GICv3 host trapping requirements into guest setup KVM: arm64: nv: Fail KVM init if asking for NV without GICv3 Oliver Upton (1): KVM: arm64: nv: Request vPE doorbell upon nested ERET to L2 .../virt/kvm/devices/arm-vgic-v3.rst | 12 +- arch/arm64/include/asm/kvm_emulate.h | 13 + arch/arm64/include/asm/kvm_host.h | 45 +- arch/arm64/include/asm/kvm_hyp.h | 2 + arch/arm64/include/asm/sysreg.h | 30 -- arch/arm64/include/uapi/asm/kvm.h | 1 + arch/arm64/kvm/Makefile | 2 +- arch/arm64/kvm/arm.c | 20 +- arch/arm64/kvm/emulate-nested.c | 18 +- arch/arm64/kvm/handle_exit.c | 6 +- arch/arm64/kvm/hyp/vgic-v3-sr.c | 16 +- arch/arm64/kvm/nested.c | 13 + arch/arm64/kvm/sys_regs.c | 95 +++- arch/arm64/kvm/vgic-sys-reg-v3.c | 8 +- arch/arm64/kvm/vgic/vgic-init.c | 29 ++ arch/arm64/kvm/vgic/vgic-kvm-device.c | 29 +- arch/arm64/kvm/vgic/vgic-v3-nested.c | 409 ++++++++++++++++++ arch/arm64/kvm/vgic/vgic-v3.c | 44 +- arch/arm64/kvm/vgic/vgic-v4.c | 18 +- arch/arm64/kvm/vgic/vgic.c | 38 ++ arch/arm64/kvm/vgic/vgic.h | 6 + arch/arm64/tools/sysreg | 48 ++ drivers/irqchip/irq-apple-aic.c | 8 +- include/kvm/arm_vgic.h | 10 + tools/arch/arm/include/uapi/asm/kvm.h | 1 + tools/arch/arm64/include/asm/sysreg.h | 30 -- 26 files changed, 834 insertions(+), 117 deletions(-) create mode 100644 arch/arm64/kvm/vgic/vgic-v3-nested.c