[PATCH v4 56/56] KVM: arm/arm64: vgic-new: enable build
From: andre.przywara@arm.com (Andre Przywara)
Date: 2016-05-16 09:54:41
Also in:
kvm, kvmarm
Subsystem:
arm port, arm64 port (aarch64 architecture), kernel virtual machine (kvm), kernel virtual machine for arm64 (kvm/arm64), the rest · Maintainers:
Russell King, Catalin Marinas, Will Deacon, Paolo Bonzini, Marc Zyngier, Oliver Upton, Linus Torvalds
Now that the new VGIC implementation has reached feature parity with the old one, add the new files to the build system and add a Kconfig option to switch between the two versions. We set the default to the new version to get maximum test coverage, in case people experience problems they can switch back to the old behaviour if needed. Signed-off-by: Andre Przywara <andre.przywara@arm.com> --- Changelog v1 .. v2: - adjust the changed filenames in the Makefiles - add vgic-mmio-v2.c and vgic-mmio-v3.c to the Makefiles arch/arm/kvm/Kconfig | 7 +++++++ arch/arm/kvm/Makefile | 11 +++++++++++ arch/arm64/kvm/Kconfig | 7 +++++++ arch/arm64/kvm/Makefile | 12 ++++++++++++ virt/kvm/arm/hyp/vgic-v2-sr.c | 5 +++++ 5 files changed, 42 insertions(+)
diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig
index 95a0005..02abfff 100644
--- a/arch/arm/kvm/Kconfig
+++ b/arch/arm/kvm/Kconfig@@ -46,6 +46,13 @@ config KVM_ARM_HOST ---help--- Provides host support for ARM processors. +config KVM_NEW_VGIC + bool "New VGIC implementation" + depends on KVM + default y + ---help--- + uses the new VGIC implementation + source drivers/vhost/Kconfig endif # VIRTUALIZATION
diff --git a/arch/arm/kvm/Makefile b/arch/arm/kvm/Makefile
index eb1bf43..a596b58 100644
--- a/arch/arm/kvm/Makefile
+++ b/arch/arm/kvm/Makefile@@ -21,7 +21,18 @@ obj-$(CONFIG_KVM_ARM_HOST) += hyp/ obj-y += kvm-arm.o init.o interrupts.o obj-y += arm.o handle_exit.o guest.o mmu.o emulate.o reset.o obj-y += coproc.o coproc_a15.o coproc_a7.o mmio.o psci.o perf.o + +ifeq ($(CONFIG_KVM_NEW_VGIC),y) +obj-y += $(KVM)/arm/vgic/vgic.o +obj-y += $(KVM)/arm/vgic/vgic-init.o +obj-y += $(KVM)/arm/vgic/vgic-irqfd.o +obj-y += $(KVM)/arm/vgic/vgic-v2.o +obj-y += $(KVM)/arm/vgic/vgic-mmio.o +obj-y += $(KVM)/arm/vgic/vgic-mmio-v2.o +obj-y += $(KVM)/arm/vgic/vgic-kvm-device.o +else obj-y += $(KVM)/arm/vgic.o obj-y += $(KVM)/arm/vgic-v2.o obj-y += $(KVM)/arm/vgic-v2-emul.o +endif obj-y += $(KVM)/arm/arch_timer.o
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index aa2e34e..c4f26ef 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig@@ -54,6 +54,13 @@ config KVM_ARM_PMU Adds support for a virtual Performance Monitoring Unit (PMU) in virtual machines. +config KVM_NEW_VGIC + bool "New VGIC implementation" + depends on KVM + default y + ---help--- + uses the new VGIC implementation + source drivers/vhost/Kconfig endif # VIRTUALIZATION
diff --git a/arch/arm64/kvm/Makefile b/arch/arm64/kvm/Makefile
index 122cff4..a7a958c 100644
--- a/arch/arm64/kvm/Makefile
+++ b/arch/arm64/kvm/Makefile@@ -20,10 +20,22 @@ kvm-$(CONFIG_KVM_ARM_HOST) += emulate.o inject_fault.o regmap.o kvm-$(CONFIG_KVM_ARM_HOST) += hyp.o hyp-init.o handle_exit.o kvm-$(CONFIG_KVM_ARM_HOST) += guest.o debug.o reset.o sys_regs.o sys_regs_generic_v8.o +ifeq ($(CONFIG_KVM_NEW_VGIC),y) +kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic/vgic.o +kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic/vgic-init.o +kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic/vgic-irqfd.o +kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic/vgic-v2.o +kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic/vgic-v3.o +kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic/vgic-mmio.o +kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic/vgic-mmio-v2.o +kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic/vgic-mmio-v3.o +kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic/vgic-kvm-device.o +else kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic.o kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic-v2.o kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic-v2-emul.o kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic-v3.o kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic-v3-emul.o +endif kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/arch_timer.o kvm-$(CONFIG_KVM_ARM_PMU) += $(KVM)/arm/pmu.o
diff --git a/virt/kvm/arm/hyp/vgic-v2-sr.c b/virt/kvm/arm/hyp/vgic-v2-sr.c
index caac41f..a3f12b3 100644
--- a/virt/kvm/arm/hyp/vgic-v2-sr.c
+++ b/virt/kvm/arm/hyp/vgic-v2-sr.c@@ -21,7 +21,12 @@ #include <asm/kvm_hyp.h> +#ifdef CONFIG_KVM_NEW_VGIC +extern struct vgic_global kvm_vgic_global_state; +#define vgic_v2_params kvm_vgic_global_state +#else extern struct vgic_params vgic_v2_params; +#endif static void __hyp_text save_maint_int_state(struct kvm_vcpu *vcpu, void __iomem *base)
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2.8.2