180ae7b118
This patch adds compilation and link against irqchip. Main motivation behind using irqchip code is to enable MSI routing code. In the future irqchip routing may also be useful when targeting multiple irqchips. Routing standard callbacks now are implemented in vgic-irqfd: - kvm_set_routing_entry - kvm_set_irq - kvm_set_msi They only are supported with new_vgic code. Both HAVE_KVM_IRQCHIP and HAVE_KVM_IRQ_ROUTING are defined. KVM_CAP_IRQ_ROUTING is advertised and KVM_SET_GSI_ROUTING is allowed. So from now on IRQCHIP routing is enabled and a routing table entry must exist for irqfd injection to succeed for a given SPI. This patch builds a default flat irqchip routing table (gsi=irqchip.pin) covering all the VGIC SPI indexes. This routing table is overwritten by the first first user-space call to KVM_SET_GSI_ROUTING ioctl. MSI routing setup is not yet allowed. Signed-off-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
54 lines
1.2 KiB
Plaintext
54 lines
1.2 KiB
Plaintext
#
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# KVM configuration
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#
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source "virt/kvm/Kconfig"
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menuconfig VIRTUALIZATION
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bool "Virtualization"
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---help---
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Say Y here to get to see options for using your Linux host to run
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other operating systems inside virtual machines (guests).
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This option alone does not add any kernel code.
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If you say N, all options in this submenu will be skipped and
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disabled.
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if VIRTUALIZATION
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config KVM
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bool "Kernel-based Virtual Machine (KVM) support"
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depends on MMU && OF
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select PREEMPT_NOTIFIERS
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select ANON_INODES
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select ARM_GIC
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select HAVE_KVM_CPU_RELAX_INTERCEPT
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select HAVE_KVM_ARCH_TLB_FLUSH_ALL
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select KVM_MMIO
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select KVM_ARM_HOST
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select KVM_GENERIC_DIRTYLOG_READ_PROTECT
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select SRCU
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select MMU_NOTIFIER
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select KVM_VFIO
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select HAVE_KVM_EVENTFD
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select HAVE_KVM_IRQFD
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select HAVE_KVM_IRQCHIP
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select HAVE_KVM_IRQ_ROUTING
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depends on ARM_VIRT_EXT && ARM_LPAE && ARM_ARCH_TIMER
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---help---
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Support hosting virtualized guest machines.
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This module provides access to the hardware capabilities through
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a character device node named /dev/kvm.
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If unsure, say N.
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config KVM_ARM_HOST
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bool
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---help---
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Provides host support for ARM processors.
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source drivers/vhost/Kconfig
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endif # VIRTUALIZATION
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