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KVM: PPC: HV: Remove generic instruction emulation

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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>
This commit is contained in:
Alexander Graf 2014-07-30 15:25:48 +02:00
commit 29577fc00b
2 changed files with 21 additions and 1 deletions
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2
arch/powerpc/kvm/Makefile
View file

@ -48,6 +48,7 @@ kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HANDLER) := \
kvm-pr-y := \ kvm-pr-y := \
fpu.o \ fpu.o \
emulate.o \
book3s_paired_singles.o \ book3s_paired_singles.o \
book3s_pr.o \ book3s_pr.o \
book3s_pr_papr.o \ book3s_pr_papr.o \
@ -91,7 +92,6 @@ kvm-book3s_64-module-objs += \
$(KVM)/kvm_main.o \ $(KVM)/kvm_main.o \
$(KVM)/eventfd.o \ $(KVM)/eventfd.o \
powerpc.o \ powerpc.o \
emulate.o \
emulate_loadstore.o \ emulate_loadstore.o \
book3s.o \ book3s.o \
book3s_64_vio.o \ book3s_64_vio.o \

20
arch/powerpc/kvm/trace_pr.h
View file

@ -291,6 +291,26 @@ TRACE_EVENT(kvm_unmap_hva,
TP_printk("unmap hva 0x%lx\n", __entry->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 */ #endif /* _TRACE_KVM_H */
/* This part must be outside protection */ /* This part must be outside protection */