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authorAlexander Graf <agraf@suse.de>2014-07-30 15:25:48 +0200
committerAlexander Graf <agraf@suse.de>2014-07-30 15:25:49 +0200
commit29577fc00ba40a89fc824f030bcc80c583259346 (patch)
tree04a4dc718f000e3b06388344250554110350bd3c /arch/powerpc/kvm
parent5a484c7c1efd2c45f8cc726e4d21283a5324e361 (diff)
downloadlinux-29577fc00ba40a89fc824f030bcc80c583259346.tar.bz2
KVM: PPC: HV: Remove generic instruction emulation
Now that we have properly split load/store instruction emulation and generic instruction emulation, we can move the generic one from kvm.ko to kvm-pr.ko on book3s_64. This reduces the attack surface and amount of code loaded on HV KVM kernels. Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm')
-rw-r--r--arch/powerpc/kvm/Makefile2
-rw-r--r--arch/powerpc/kvm/trace_pr.h20
2 files changed, 21 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/Makefile b/arch/powerpc/kvm/Makefile
index 1ccd7a1a441c..2d590dea5482 100644
--- a/arch/powerpc/kvm/Makefile
+++ b/arch/powerpc/kvm/Makefile
@@ -48,6 +48,7 @@ kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HANDLER) := \
kvm-pr-y := \
fpu.o \
+ emulate.o \
book3s_paired_singles.o \
book3s_pr.o \
book3s_pr_papr.o \
@@ -91,7 +92,6 @@ kvm-book3s_64-module-objs += \
$(KVM)/kvm_main.o \
$(KVM)/eventfd.o \
powerpc.o \
- emulate.o \
emulate_loadstore.o \
book3s.o \
book3s_64_vio.o \
diff --git a/arch/powerpc/kvm/trace_pr.h b/arch/powerpc/kvm/trace_pr.h
index e1357cd8dc1f..a674f090dfb8 100644
--- a/arch/powerpc/kvm/trace_pr.h
+++ b/arch/powerpc/kvm/trace_pr.h
@@ -291,6 +291,26 @@ TRACE_EVENT(kvm_unmap_hva,
TP_printk("unmap hva 0x%lx\n", __entry->hva)
);
+TRACE_EVENT(kvm_ppc_instr,
+ TP_PROTO(unsigned int inst, unsigned long _pc, unsigned int emulate),
+ TP_ARGS(inst, _pc, emulate),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, inst )
+ __field( unsigned long, pc )
+ __field( unsigned int, emulate )
+ ),
+
+ TP_fast_assign(
+ __entry->inst = inst;
+ __entry->pc = _pc;
+ __entry->emulate = emulate;
+ ),
+
+ TP_printk("inst %u pc 0x%lx emulate %u\n",
+ __entry->inst, __entry->pc, __entry->emulate)
+);
+
#endif /* _TRACE_KVM_H */
/* This part must be outside protection */