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MIPS: Export MSA functions used by lose_fpu(1) for KVM
Export the _save_msa asm function used by the lose_fpu(1) macro to GPL modules so that KVM can make use of it when it is built as a module. This fixes the following build error when CONFIG_KVM=m and CONFIG_CPU_HAS_MSA=y due to commitf798217dfd
("KVM: MIPS: Don't leak FPU/DSP to guest"): ERROR: "_save_msa" [arch/mips/kvm/kvm.ko] undefined! Fixes:f798217dfd
(KVM: MIPS: Don't leak FPU/DSP to guest) Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: kvm@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 3.15+ Patchwork: https://patchwork.linux-mips.org/patch/9261/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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@ -15,6 +15,7 @@
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#include <asm/uaccess.h>
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#include <asm/ftrace.h>
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#include <asm/fpu.h>
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#include <asm/msa.h>
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extern void *__bzero(void *__s, size_t __count);
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extern long __strncpy_from_kernel_nocheck_asm(char *__to,
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@ -36,6 +37,9 @@ extern long __strnlen_user_asm(const char *s);
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* Core architecture code
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*/
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EXPORT_SYMBOL_GPL(_save_fp);
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#ifdef CONFIG_CPU_HAS_MSA
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EXPORT_SYMBOL_GPL(_save_msa);
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#endif
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/*
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* String functions
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