Messages in this thread | | | Date | Sat, 07 Mar 2015 14:30:27 +0100 | From | Jiri Slaby <> | Subject | Re: [PATCH stable 3.10, 3.12, 3.14] MIPS: Export FP functions used by lose_fpu(1) for KVM |
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On 03/05/2015, 05:08 PM, James Hogan wrote: > [ Upstream commit 3ce465e04bfd8de9956d515d6e9587faac3375dc ] > > Export the _save_fp 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 due to commit > f798217dfd03 ("KVM: MIPS: Don't leak FPU/DSP to guest"): > > ERROR: "_save_fp" [arch/mips/kvm/kvm.ko] undefined! > > Signed-off-by: James Hogan <james.hogan@imgtec.com> > Fixes: f798217dfd03 (KVM: MIPS: Don't leak FPU/DSP to guest) > 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> # 3.10...3.15 > Patchwork: https://patchwork.linux-mips.org/patch/9260/ > Signed-off-by: Ralf Baechle <ralf@linux-mips.org> > [james.hogan@imgtec.com: Only export when CPU_R4K_FPU=y prior to v3.16, > so as not to break the Octeon build which excludes FPU support. KVM > depends on MIPS32r2 anyway.] > Signed-off-by: James Hogan <james.hogan@imgtec.com> > --- > Appologies for the previous cavium_octeon_defconfig link breakage. > Octeon has the symbol since 3.16, but not before. This backport should > do the trick for stable 3.10, 3.12, and 3.14. Build tested with > cavium_octeon_defconfig and malta_kvm_defconfig on those stable > branches.
Applied to 3.12 now. Thanks.
-- js suse labs
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