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Commit d7b8f890 authored by James Hogan's avatar James Hogan Committed by Paolo Bonzini
Browse files

MIPS: KVM: Add dumping of generated entry code 



Dump the generated entry code with pr_debug(), similar to how it is done
in tlbex.c, so it can be more easily debugged.

Signed-off-by: default avatarJames Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim KrÄmář <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 90e9311a

arch/mips/kvm/mips.c

+25 −0
Original line number Diff line number Diff line
@@ -245,6 +245,23 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, 
	}

}



static inline void dump_handler(const char *symbol, void *start, void *end)

{

	u32 *p;



	pr_debug("LEAF(%s)\n", symbol);



	pr_debug("\t.set push\n");

	pr_debug("\t.set noreorder\n");



	for (p = start; p < (u32 *)end; ++p)

		pr_debug("\t.word\t0x%08x\t\t# %p\n", *p, p);



	pr_debug("\t.set\tpop\n");



	pr_debug("\tEND(%s)\n", symbol);

}



struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)

{

	int err, size;
@@ -309,6 +326,14 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id) 
	vcpu->arch.vcpu_run = p;

	p = kvm_mips_build_vcpu_run(p);



	/* Dump the generated code */

	pr_debug("#include <asm/asm.h>\n");

	pr_debug("#include <asm/regdef.h>\n");

	pr_debug("\n");

	dump_handler("kvm_vcpu_run", vcpu->arch.vcpu_run, p);

	dump_handler("kvm_gen_exc", gebase + 0x180, gebase + 0x200);

	dump_handler("kvm_exit", gebase + 0x2000, vcpu->arch.vcpu_run);



	/* Invalidate the icache for these ranges */

	local_flush_icache_range((unsigned long)gebase,

				(unsigned long)gebase + ALIGN(size, PAGE_SIZE));