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: James Hogan <james.hogan@xxxxxxxxxx>
Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Cc: Radim Krčmář <rkrcmar@xxxxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: kvm@xxxxxxxxxxxxxxx
---
arch/mips/kvm/mips.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index f00cf5f9ac52..f809ad84196d 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -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));
--
2.4.10
