KVM: arm64: Move virt/kvm/arm to arch/arm64

Now that the 32bit KVM/arm host is a distant memory, let's move the
whole of the KVM/arm64 code into the arm64 tree.

As they said in the song: Welcome Home (Sanitarium).

Signed-off-by: Marc Zyngier <[email protected]>
Acked-by: Will Deacon <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: Marc Zyngier

MAINTAINERS

@@ -9295,7 +9295,6 @@ F:	arch/arm64/include/asm/kvm*
 F:	arch/arm64/include/uapi/asm/kvm*
 F:	arch/arm64/kvm/
 F:	include/kvm/arm_*
-F:	virt/kvm/arm/
 
 KERNEL VIRTUAL MACHINE FOR MIPS (KVM/mips)
 L:	[email protected]

arch/arm64/kvm/Makefile

@@ -3,37 +3,37 @@
 # Makefile for Kernel-based Virtual Machine module
 #
 
-ccflags-y += -I $(srctree)/$(src) -I $(srctree)/virt/kvm/arm/vgic
+ccflags-y += -I $(srctree)/$(src)
 
 KVM=../../../virt/kvm
 
 obj-$(CONFIG_KVM_ARM_HOST) += kvm.o
 obj-$(CONFIG_KVM_ARM_HOST) += hyp/
 
-kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/eventfd.o $(KVM)/vfio.o
-kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/arm.o $(KVM)/arm/mmu.o $(KVM)/arm/mmio.o
-kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/psci.o $(KVM)/arm/perf.o
-kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hypercalls.o
-kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/pvtime.o
+kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o
+kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/eventfd.o $(KVM)/vfio.o $(KVM)/irqchip.o
+kvm-$(CONFIG_KVM_ARM_HOST) += arm.o mmu.o mmio.o
+kvm-$(CONFIG_KVM_ARM_HOST) += psci.o perf.o
+kvm-$(CONFIG_KVM_ARM_HOST) += hypercalls.o
+kvm-$(CONFIG_KVM_ARM_HOST) += pvtime.o
 
 kvm-$(CONFIG_KVM_ARM_HOST) += inject_fault.o regmap.o va_layout.o
 kvm-$(CONFIG_KVM_ARM_HOST) += hyp.o hyp-init.o handle_exit.o
 kvm-$(CONFIG_KVM_ARM_HOST) += guest.o debug.o reset.o sys_regs.o sys_regs_generic_v8.o
 kvm-$(CONFIG_KVM_ARM_HOST) += vgic-sys-reg-v3.o fpsimd.o pmu.o
-kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/aarch32.o
+kvm-$(CONFIG_KVM_ARM_HOST) += aarch32.o
+kvm-$(CONFIG_KVM_ARM_HOST) += arch_timer.o
+kvm-$(CONFIG_KVM_ARM_PMU)  += pmu-emul.o
 
-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) += $(KVM)/arm/vgic/vgic-v4.o
-kvm-$(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) += $(KVM)/arm/vgic/vgic-kvm-device.o
-kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic/vgic-its.o
-kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic/vgic-debug.o
-kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/irqchip.o
-kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/arch_timer.o
-kvm-$(CONFIG_KVM_ARM_PMU) += $(KVM)/arm/pmu.o
+kvm-$(CONFIG_KVM_ARM_HOST) += vgic/vgic.o
+kvm-$(CONFIG_KVM_ARM_HOST) += vgic/vgic-init.o
+kvm-$(CONFIG_KVM_ARM_HOST) += vgic/vgic-irqfd.o
+kvm-$(CONFIG_KVM_ARM_HOST) += vgic/vgic-v2.o
+kvm-$(CONFIG_KVM_ARM_HOST) += vgic/vgic-v3.o
+kvm-$(CONFIG_KVM_ARM_HOST) += vgic/vgic-v4.o
+kvm-$(CONFIG_KVM_ARM_HOST) += vgic/vgic-mmio.o
+kvm-$(CONFIG_KVM_ARM_HOST) += vgic/vgic-mmio-v2.o
+kvm-$(CONFIG_KVM_ARM_HOST) += vgic/vgic-mmio-v3.o
+kvm-$(CONFIG_KVM_ARM_HOST) += vgic/vgic-kvm-device.o
+kvm-$(CONFIG_KVM_ARM_HOST) += vgic/vgic-its.o
+kvm-$(CONFIG_KVM_ARM_HOST) += vgic/vgic-debug.o

virt/kvm/arm/aarch32.c renamed to arch/arm64/kvm/aarch32.c

@@ -22,7 +22,7 @@
 #include <trace/events/kvm.h>
 
 #define CREATE_TRACE_POINTS
-#include "trace.h"
+#include "trace_arm.h"
 
 #include <linux/uaccess.h>
 #include <asm/ptrace.h>

virt/kvm/arm/arch_timer.c renamed to arch/arm64/kvm/arch_timer.c

@@ -23,7 +23,7 @@
 #include <kvm/arm_hypercalls.h>
 
 #define CREATE_TRACE_POINTS
-#include "trace.h"
+#include "trace_handle_exit.h"
 
 typedef int (*exit_handle_fn)(struct kvm_vcpu *, struct kvm_run *);
 

virt/kvm/arm/arm.c renamed to arch/arm64/kvm/arm.c

@@ -6,12 +6,9 @@
 ccflags-y += -fno-stack-protector -DDISABLE_BRANCH_PROFILING \
 		$(DISABLE_STACKLEAK_PLUGIN)
 
-KVM=../../../../virt/kvm
-
-obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v3-sr.o
-obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/timer-sr.o
-obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/aarch32.o
-
+obj-$(CONFIG_KVM_ARM_HOST) += vgic-v3-sr.o
+obj-$(CONFIG_KVM_ARM_HOST) += timer-sr.o
+obj-$(CONFIG_KVM_ARM_HOST) += aarch32.o
 obj-$(CONFIG_KVM_ARM_HOST) += vgic-v2-cpuif-proxy.o
 obj-$(CONFIG_KVM_ARM_HOST) += sysreg-sr.o
 obj-$(CONFIG_KVM_ARM_HOST) += debug-sr.o

arch/arm64/kvm/handle_exit.c

@@ -431,8 +431,6 @@ void __hyp_text __vgic_v3_write_vmcr(u32 vmcr)
 	write_gicreg(vmcr, ICH_VMCR_EL2);
 }
 
-#ifdef CONFIG_ARM64
-
 static int __hyp_text __vgic_v3_bpr_min(void)
 {
 	/* See Pseudocode for VPriorityGroup */
@@ -1126,5 +1124,3 @@ int __hyp_text __vgic_v3_perform_cpuif_access(struct kvm_vcpu *vcpu)
 
 	return 1;
 }
-
-#endif