Re: [PATCH] powerpc/kvm: fix build with older toolchains

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On 11/08/2011 12:36 AM, Nishanth Aravamudan wrote:
Fix KVM build for older toolchains (found with .powerpc64-unknown-linux-gnu-gcc
(crosstool-NG-1.8.1) 4.3.2):

   AS      arch/powerpc/kvm/book3s_hv_rmhandlers.o
arch/powerpc/kvm/book3s_hv_rmhandlers.S: Assembler messages:
arch/powerpc/kvm/book3s_hv_rmhandlers.S:1388: Error: Unrecognized opcode: `popcntw'
make[1]: *** [arch/powerpc/kvm/book3s_hv_rmhandlers.o] Error 1
make: *** [_module_arch/powerpc/kvm] Error 2

Signed-off-by: Nishanth Aravamudan<nacc@xxxxxxxxxx>

Thanks, applied to kvm-ppc-next.


Alex

diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 0607909..a053db1 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -1385,7 +1385,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_206)
  	addi	r6,r5,VCORE_NAPPING_THREADS
  31:	lwarx	r4,0,r6
  	or	r4,r4,r0
-	popcntw	r7,r4
+	PPC_POPCNTW(r7,r4)
  	cmpw	r7,r8
  	bge	2f
  	stwcx.	r4,0,r6


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