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| author | Nicholas Piggin | 2017-04-19 15:05:43 +0200 |
|---|---|---|
| committer | Michael Ellerman | 2017-04-23 09:26:35 +0200 |
| commit | 2563a70c3b2acc4f60083e2aaf1102f8dba73649 (patch) | |
| tree | fc1a2e8778d9b96504ae454fa80a4bec2df090b0 | |
| parent | powerpc/mm: Add support for runtime configuration of ASLR limits (diff) | |
| download | kernel-qcow2-linux-2563a70c3b2acc4f60083e2aaf1102f8dba73649.tar.gz kernel-qcow2-linux-2563a70c3b2acc4f60083e2aaf1102f8dba73649.tar.xz kernel-qcow2-linux-2563a70c3b2acc4f60083e2aaf1102f8dba73649.zip | |
powerpc/64s: Remove unnecessary relocation branch from idle handler
The system reset idle handler system_reset_idle_common is relocated, so
relocation is not required to branch to kvm_start_guest. The superfluous
relocation does not result in incorrect code, but it does not compile
outside of exception-64s.S (with fixed section definitions).
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| -rw-r--r-- | arch/powerpc/include/asm/exception-64s.h | 8 | ||||
| -rw-r--r-- | arch/powerpc/kernel/exceptions-64s.S | 2 |
2 files changed, 1 insertions, 9 deletions
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h index b89c91e27dd0..437550175b4d 100644 --- a/arch/powerpc/include/asm/exception-64s.h +++ b/arch/powerpc/include/asm/exception-64s.h @@ -256,11 +256,6 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) ld r9,area+EX_R9(r13); \ bctr -#define BRANCH_TO_KVM(reg, label) \ - __LOAD_FAR_HANDLER(reg, label); \ - mtctr reg; \ - bctr - #else #define BRANCH_TO_COMMON(reg, label) \ b label @@ -268,9 +263,6 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) #define BRANCH_LINK_TO_FAR(reg, label) \ bl label -#define BRANCH_TO_KVM(reg, label) \ - b label - #define __BRANCH_TO_KVM_EXIT(area, label) \ ld r9,area+EX_R9(r13); \ b label diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 857bf7c5b946..7d496ee984fe 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -142,7 +142,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_300) lbz r0,HSTATE_HWTHREAD_REQ(r13) cmpwi r0,0 beq 1f - BRANCH_TO_KVM(r10, kvm_start_guest) + b kvm_start_guest 1: #endif |