Commit 35d2d5d4 authored by Christoffer Dall's avatar Christoffer Dall
Browse files

KVM: arm/arm64: Move shared files to virt/kvm/arm 



For some time now we have been having a lot of shared functionality
between the arm and arm64 KVM support in arch/arm, which not only
required a horrible inter-arch reference from the Makefile in
arch/arm64/kvm, but also created confusion for newcomers to the code
base, as was recently seen on the mailing list.

Further, it causes confusion for things like cscope, which needs special
attention to index specific shared files for arm64 from the arm tree.

Move the shared files into virt/kvm/arm and move the trace points along
with it.  When moving the tracepoints we have to modify the way the vgic
creates definitions of the trace points, so we take the chance to
include the VGIC tracepoints in its very own special vgic trace.h file.

Signed-off-by: default avatarChristoffer Dall <cdall@linaro.org>
parent c667186f

arch/arm/kvm/Makefile

+5 −2
Original line number Diff line number Diff line
@@ -18,9 +18,12 @@ KVM := ../../../virt/kvm 
kvm-arm-y = $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/eventfd.o $(KVM)/vfio.o



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 vgic-v3-coproc.o

obj-y += handle_exit.o guest.o emulate.o reset.o

obj-y += coproc.o coproc_a15.o coproc_a7.o   vgic-v3-coproc.o

obj-y += $(KVM)/arm/arm.o $(KVM)/arm/mmu.o $(KVM)/arm/mmio.o

obj-y += $(KVM)/arm/psci.o $(KVM)/arm/perf.o

obj-y += $(KVM)/arm/aarch32.o



obj-y += $(KVM)/arm/vgic/vgic.o

arch/arm/kvm/trace.h

+0 −247
Original line number Diff line number Diff line
@@ -6,133 +6,6 @@ 
#undef TRACE_SYSTEM

#define TRACE_SYSTEM kvm



/*

 * Tracepoints for entry/exit to guest

 */

TRACE_EVENT(kvm_entry,

	TP_PROTO(unsigned long vcpu_pc),

	TP_ARGS(vcpu_pc),



	TP_STRUCT__entry(

		__field(	unsigned long,	vcpu_pc		)

	),



	TP_fast_assign(

		__entry->vcpu_pc		= vcpu_pc;

	),



	TP_printk("PC: 0x%08lx", __entry->vcpu_pc)

);



TRACE_EVENT(kvm_exit,

	TP_PROTO(int idx, unsigned int exit_reason, unsigned long vcpu_pc),

	TP_ARGS(idx, exit_reason, vcpu_pc),



	TP_STRUCT__entry(

		__field(	int,		idx		)

		__field(	unsigned int,	exit_reason	)

		__field(	unsigned long,	vcpu_pc		)

	),



	TP_fast_assign(

		__entry->idx			= idx;

		__entry->exit_reason		= exit_reason;

		__entry->vcpu_pc		= vcpu_pc;

	),



	TP_printk("%s: HSR_EC: 0x%04x (%s), PC: 0x%08lx",

		  __print_symbolic(__entry->idx, kvm_arm_exception_type),

		  __entry->exit_reason,

		  __print_symbolic(__entry->exit_reason, kvm_arm_exception_class),

		  __entry->vcpu_pc)

);



TRACE_EVENT(kvm_guest_fault,

	TP_PROTO(unsigned long vcpu_pc, unsigned long hsr,

		 unsigned long hxfar,

		 unsigned long long ipa),

	TP_ARGS(vcpu_pc, hsr, hxfar, ipa),



	TP_STRUCT__entry(

		__field(	unsigned long,	vcpu_pc		)

		__field(	unsigned long,	hsr		)

		__field(	unsigned long,	hxfar		)

		__field(   unsigned long long,	ipa		)

	),



	TP_fast_assign(

		__entry->vcpu_pc		= vcpu_pc;

		__entry->hsr			= hsr;

		__entry->hxfar			= hxfar;

		__entry->ipa			= ipa;

	),



	TP_printk("ipa %#llx, hsr %#08lx, hxfar %#08lx, pc %#08lx",

		  __entry->ipa, __entry->hsr,

		  __entry->hxfar, __entry->vcpu_pc)

);



TRACE_EVENT(kvm_access_fault,

	TP_PROTO(unsigned long ipa),

	TP_ARGS(ipa),



	TP_STRUCT__entry(

		__field(	unsigned long,	ipa		)

	),



	TP_fast_assign(

		__entry->ipa		= ipa;

	),



	TP_printk("IPA: %lx", __entry->ipa)

);



TRACE_EVENT(kvm_irq_line,

	TP_PROTO(unsigned int type, int vcpu_idx, int irq_num, int level),

	TP_ARGS(type, vcpu_idx, irq_num, level),



	TP_STRUCT__entry(

		__field(	unsigned int,	type		)

		__field(	int,		vcpu_idx	)

		__field(	int,		irq_num		)

		__field(	int,		level		)

	),



	TP_fast_assign(

		__entry->type		= type;

		__entry->vcpu_idx	= vcpu_idx;

		__entry->irq_num	= irq_num;

		__entry->level		= level;

	),



	TP_printk("Inject %s interrupt (%d), vcpu->idx: %d, num: %d, level: %d",

		  (__entry->type == KVM_ARM_IRQ_TYPE_CPU) ? "CPU" :

		  (__entry->type == KVM_ARM_IRQ_TYPE_PPI) ? "VGIC PPI" :

		  (__entry->type == KVM_ARM_IRQ_TYPE_SPI) ? "VGIC SPI" : "UNKNOWN",

		  __entry->type, __entry->vcpu_idx, __entry->irq_num, __entry->level)

);



TRACE_EVENT(kvm_mmio_emulate,

	TP_PROTO(unsigned long vcpu_pc, unsigned long instr,

		 unsigned long cpsr),

	TP_ARGS(vcpu_pc, instr, cpsr),



	TP_STRUCT__entry(

		__field(	unsigned long,	vcpu_pc		)

		__field(	unsigned long,	instr		)

		__field(	unsigned long,	cpsr		)

	),



	TP_fast_assign(

		__entry->vcpu_pc		= vcpu_pc;

		__entry->instr			= instr;

		__entry->cpsr			= cpsr;

	),



	TP_printk("Emulate MMIO at: 0x%08lx (instr: %08lx, cpsr: %08lx)",

		  __entry->vcpu_pc, __entry->instr, __entry->cpsr)

);



/* Architecturally implementation defined CP15 register access */

TRACE_EVENT(kvm_emulate_cp15_imp,

	TP_PROTO(unsigned long Op1, unsigned long Rt1, unsigned long CRn,
@@ -181,87 +54,6 @@ TRACE_EVENT(kvm_wfx, 
		__entry->is_wfe ? 'e' : 'i', __entry->vcpu_pc)

);



TRACE_EVENT(kvm_unmap_hva,

	TP_PROTO(unsigned long hva),

	TP_ARGS(hva),



	TP_STRUCT__entry(

		__field(	unsigned long,	hva		)

	),



	TP_fast_assign(

		__entry->hva		= hva;

	),



	TP_printk("mmu notifier unmap hva: %#08lx", __entry->hva)

);



TRACE_EVENT(kvm_unmap_hva_range,

	TP_PROTO(unsigned long start, unsigned long end),

	TP_ARGS(start, end),



	TP_STRUCT__entry(

		__field(	unsigned long,	start		)

		__field(	unsigned long,	end		)

	),



	TP_fast_assign(

		__entry->start		= start;

		__entry->end		= end;

	),



	TP_printk("mmu notifier unmap range: %#08lx -- %#08lx",

		  __entry->start, __entry->end)

);



TRACE_EVENT(kvm_set_spte_hva,

	TP_PROTO(unsigned long hva),

	TP_ARGS(hva),



	TP_STRUCT__entry(

		__field(	unsigned long,	hva		)

	),



	TP_fast_assign(

		__entry->hva		= hva;

	),



	TP_printk("mmu notifier set pte hva: %#08lx", __entry->hva)

);



TRACE_EVENT(kvm_age_hva,

	TP_PROTO(unsigned long start, unsigned long end),

	TP_ARGS(start, end),



	TP_STRUCT__entry(

		__field(	unsigned long,	start		)

		__field(	unsigned long,	end		)

	),



	TP_fast_assign(

		__entry->start		= start;

		__entry->end		= end;

	),



	TP_printk("mmu notifier age hva: %#08lx -- %#08lx",

		  __entry->start, __entry->end)

);



TRACE_EVENT(kvm_test_age_hva,

	TP_PROTO(unsigned long hva),

	TP_ARGS(hva),



	TP_STRUCT__entry(

		__field(	unsigned long,	hva		)

	),



	TP_fast_assign(

		__entry->hva		= hva;

	),



	TP_printk("mmu notifier test age hva: %#08lx", __entry->hva)

);



TRACE_EVENT(kvm_hvc,

	TP_PROTO(unsigned long vcpu_pc, unsigned long r0, unsigned long imm),

	TP_ARGS(vcpu_pc, r0, imm),
@@ -282,45 +74,6 @@ TRACE_EVENT(kvm_hvc, 
		  __entry->vcpu_pc, __entry->r0, __entry->imm)

);



TRACE_EVENT(kvm_set_way_flush,

	    TP_PROTO(unsigned long vcpu_pc, bool cache),

	    TP_ARGS(vcpu_pc, cache),



	    TP_STRUCT__entry(

		    __field(	unsigned long,	vcpu_pc		)

		    __field(	bool,		cache		)

	    ),



	    TP_fast_assign(

		    __entry->vcpu_pc		= vcpu_pc;

		    __entry->cache		= cache;

	    ),



	    TP_printk("S/W flush at 0x%016lx (cache %s)",

		      __entry->vcpu_pc, __entry->cache ? "on" : "off")

);



TRACE_EVENT(kvm_toggle_cache,

	    TP_PROTO(unsigned long vcpu_pc, bool was, bool now),

	    TP_ARGS(vcpu_pc, was, now),



	    TP_STRUCT__entry(

		    __field(	unsigned long,	vcpu_pc		)

		    __field(	bool,		was		)

		    __field(	bool,		now		)

	    ),



	    TP_fast_assign(

		    __entry->vcpu_pc		= vcpu_pc;

		    __entry->was		= was;

		    __entry->now		= now;

	    ),



	    TP_printk("VM op at 0x%016lx (cache was %s, now %s)",

		      __entry->vcpu_pc, __entry->was ? "on" : "off",

		      __entry->now ? "on" : "off")

);



#endif /* _TRACE_KVM_H */



#undef TRACE_INCLUDE_PATH

arch/arm64/kvm/Makefile

+2 −3
Original line number Diff line number Diff line
@@ -7,14 +7,13 @@ CFLAGS_arm.o := -I. 
CFLAGS_mmu.o := -I.



KVM=../../../virt/kvm

ARM=../../../arch/arm/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) += $(ARM)/arm.o $(ARM)/mmu.o $(ARM)/mmio.o

kvm-$(CONFIG_KVM_ARM_HOST) += $(ARM)/psci.o $(ARM)/perf.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) += inject_fault.o regmap.o

kvm-$(CONFIG_KVM_ARM_HOST) += hyp.o hyp-init.o handle_exit.o

arch/arm/kvm/arm.c→virt/kvm/arm/arm.c

+0 −0

File moved.

View file

arch/arm/kvm/mmio.c→virt/kvm/arm/mmio.c

+0 −0

File moved.

View file

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