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| author | Alexander Graf <agraf@suse.de> | 2018-02-08 18:38:53 +0100 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2018-02-09 15:39:41 +1100 |
| commit | d20fe50a7b3c8f936f7347e9cab2e9dd89c1199d (patch) | |
| tree | 006f51196b43e606bfa12c958bb005b2ab5a5158 /arch/powerpc | |
| parent | 790a9df5fbef982f2a6992194fe497dd2b794a3d (diff) | |
| download | linux-d20fe50a7b3c8f936f7347e9cab2e9dd89c1199d.tar.gz | |
KVM: PPC: Book3S HV: Branch inside feature section
We ended up with code that did a conditional branch inside a feature section to code outside of the feature section. Depending on how the object file gets organized, that might mean we exceed the 14bit relocation limit for conditional branches: arch/powerpc/kvm/built-in.o:arch/powerpc/kvm/book3s_hv_rmhandlers.S:416:(__ftr_alt_97+0x8): relocation truncated to fit: R_PPC64_REL14 against `.text'+1ca4 So instead of doing a conditional branch outside of the feature section, let's just jump at the end of the same, making the branch very short. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv_rmhandlers.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index a7a20b85d8eb..7d1459e77de2 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -413,10 +413,11 @@ FTR_SECTION_ELSE /* On P9 we use the split_info for coordinating LPCR changes */ lwz r4, KVM_SPLIT_DO_SET(r6) cmpwi r4, 0 - beq 63f + beq 1f mr r3, r6 bl kvmhv_p9_set_lpcr nop +1: ALT_FTR_SECTION_END_IFCLR(CPU_FTR_ARCH_300) 63: /* Order load of vcpu after load of vcore */ |