From: Vijaya Kumar K <vijaya.ku...@cavium.com> This series introduces support for GICv3 live migration with new VGIC implementation in 4.7-rc3 kernel. In this series, patch 1 of the previous implementation are ported. https://lists.nongnu.org/archive/html/qemu-devel/2015-10/msg05284.html
Patch 2, is based on below implementation. http://patchwork.ozlabs.org/patch/626746/ Latest kernel patches https://www.spinics.net/lists/arm-kernel/msg558046.html This API definition is as per version of VGICv3 specification in linux kernel Documentation/virtual/kvm/devices/arm-vgic-v3.txt Tested Live migration of Idle VM running with 4 VCPUs and 8GB RAM. v8 => v9: - Updated icc_sre_el1_reg_needed() return condition to cs->icc_sre_el1 != 0x7; - Dropped assert in arm_gicv3_icc_reset() - Added comments at required places v7 => v8: - Introduced vmstate subsection to add icc_ctrl_el1 register to VMStateDescription - Introduced new function gicv3_set_gicv3state() in arm_gicv3_cpuif.c to update gicv3state variable in CPUARMState struct. - Used arm_cp_read_zero & arm_cp_write_ignore for ARMCPRegInfo[]. v6 => v7: - Rebased on top of v2.8.0-rc4 release. - Added patch to add icc_ctrl_el1 to vmstruct before live migration patch. - Added patch to add gicv3state variable to CPUARMState struct to store GICv3CPUState pointer. - Added patch to register ARMCPRegInfo[] struct and reset on CPU reset. v5 => v6: - Added separate patch for Reseting ICC* register - Added seperate patch for save and restore of ICC_CTLR_EL1 - Dropped translate_fn mechanism and coded open functions for edge_trigger and priority save and restore. - Save and Restore APnR registers based on ICC_CTLR_EL1.PRIBITS v4 => v5: - Initialized ICC registers before reset. v3 => v4: - Reintroduced offset GICR_SGI_OFFSET - Implement save and restore of ICC_SRE_EL1 - Updated kvm.h header file in sync with KVM v4 patches v2 => v3: - Dropped offset GICR_SGI_OFFSET - Implement save/restore of irq line level using KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO - Fixed bug with save/restore of edge_trigger Vijaya Kumar K (5): kernel: Add definitions for GICv3 attributes hw/intc/arm_gicv3_kvm: Add ICC_SRE_EL1 register to vmstate hw/intc/arm_gicv3_kvm: Implement get/put functions target-arm: Add GICv3CPUState in CPUARMState struct hw/intc/arm_gicv3_kvm: Reset GICv3 cpu interface registers hw/intc/arm_gicv3_common.c | 38 +++ hw/intc/arm_gicv3_cpuif.c | 8 + hw/intc/arm_gicv3_kvm.c | 629 ++++++++++++++++++++++++++++++++++++- hw/intc/gicv3_internal.h | 3 + include/hw/intc/arm_gicv3_common.h | 1 + linux-headers/asm-arm/kvm.h | 12 + linux-headers/asm-arm64/kvm.h | 12 + target/arm/cpu.h | 2 + 8 files changed, 691 insertions(+), 14 deletions(-) -- 1.9.1
