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| author | James Hogan <james.hogan@imgtec.com> | 2015-02-10 10:03:00 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2015-02-19 15:59:44 +0100 |
| commit | ca5d25642e212f73492d332d95dc90ef46a0e8dc (patch) | |
| tree | d38526e0a248ecc14c16596c380b48b53de8613e /arch | |
| parent | 3ce465e04bfd8de9956d515d6e9587faac3375dc (diff) | |
| download | linux-ca5d25642e212f73492d332d95dc90ef46a0e8dc.tar.bz2 | |
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 commit f798217dfd03 ("KVM: MIPS: Don't leak
FPU/DSP to guest"):
ERROR: "_save_msa" [arch/mips/kvm/kvm.ko] undefined!
Fixes: f798217dfd03 (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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/kernel/mips_ksyms.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/mips/kernel/mips_ksyms.c b/arch/mips/kernel/mips_ksyms.c index 167ce3fae398..1a73c6c9e4b7 100644 --- a/arch/mips/kernel/mips_ksyms.c +++ b/arch/mips/kernel/mips_ksyms.c @@ -15,6 +15,7 @@ #include <asm/uaccess.h> #include <asm/ftrace.h> #include <asm/fpu.h> +#include <asm/msa.h> extern void *__bzero(void *__s, size_t __count); extern long __strncpy_from_kernel_nocheck_asm(char *__to, @@ -36,6 +37,9 @@ extern long __strnlen_user_asm(const char *s); * Core architecture code */ EXPORT_SYMBOL_GPL(_save_fp); +#ifdef CONFIG_CPU_HAS_MSA +EXPORT_SYMBOL_GPL(_save_msa); +#endif /* * String functions |