From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Fedin Subject: [PATCH v4 0/7] KVM: arm64: Implement API for vGICv3 live migration Date: Mon, 28 Sep 2015 18:27:27 +0300 Message-ID: Cc: Peter Maydell , Marc Zyngier , Andre Przywara To: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Return-path: Received: from mailout4.w1.samsung.com ([210.118.77.14]:62385 "EHLO mailout4.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933556AbbI1P1l (ORCPT ); Mon, 28 Sep 2015 11:27:41 -0400 Received: from eucpsbgm2.samsung.com (unknown [203.254.199.245]) by mailout4.w1.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTP id <0NVE000GQ8A34O30@mailout4.w1.samsung.com> for kvm@vger.kernel.org; Mon, 28 Sep 2015 16:27:39 +0100 (BST) Sender: kvm-owner@vger.kernel.org List-ID: This patchset adds necessary userspace API in order to support vGICv3 live migration. GICv3 registers are accessed using device attribute ioctls, similar to GICv2. v3 => v4: - Split pure refactoring from anything else - Documentation brought up to date - Cleaned up 'mmio' structure usage in vgic_attr_regs_access(), use call_range_handler() for 64-bit access handling - Rebased on new linux-next v2 => v3: - KVM_DEV_ARM_VGIC_CPUID_MASK enlarged to 20 bits, allowing more than 256 CPUs. - Bug fix: Correctly set mmio->private, necessary for redistributor access. - Added accessors for ICC_AP0R and ICC_AP1R registers - Rebased on new linux-next v1 => v2: - Do not use generic register get/set API for CPU interface, use only device attributes. - Introduce size specifier for distributor and redistributor register accesses, do not assume size any more. - Lots of refactor and reusable code extraction. - Added forgotten documentation Pavel Fedin (7): KVM: arm/arm64: Move endianness conversion out of vgic_attr_regs_access() KVM: arm/arm64: Refactor vGIC attributes handling code KVM: arm/arm64: Fix the documentation KVM: arm64: Implement vGICv3 distributor and redistributor access from userspace KVM: arm64: Refactor system register handlers KVM: arm64: Introduce find_reg_by_id() Implement vGICv3 CPU interface access Documentation/virtual/kvm/devices/arm-vgic.txt | 90 ++++++- arch/arm64/include/uapi/asm/kvm.h | 11 +- arch/arm64/kvm/sys_regs.c | 83 +++--- arch/arm64/kvm/sys_regs.h | 8 +- arch/arm64/kvm/sys_regs_generic_v8.c | 2 +- include/linux/irqchip/arm-gic-v3.h | 18 +- virt/kvm/arm/vgic-v2-emul.c | 122 ++------- virt/kvm/arm/vgic-v3-emul.c | 338 ++++++++++++++++++++++++- virt/kvm/arm/vgic.c | 65 +++++ virt/kvm/arm/vgic.h | 4 + 10 files changed, 571 insertions(+), 170 deletions(-) -- 2.4.4