linux-kernel - linux-next: manual merge of the kvm-ppc tree with the powerpc tree

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Date:	Thu, 12 Jul 2012 13:57:35 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Alexander Graf <agraf@...e.de>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Bharat Bhushan <r65777@...escale.com>,
	Michael Neuling <mikey@...ling.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	<linuxppc-dev@...ts.ozlabs.org>
Subject: linux-next: manual merge of the kvm-ppc tree with the powerpc tree

Hi Alexander,

Today's linux-next merge of the kvm-ppc tree got a conflict in
arch/powerpc/kvm/booke_interrupts.S between commit c75df6f96c59
("powerpc: Fix usage of register macros getting ready for %r0 change")
from the powerpc tree and commit fc372c0843b8 ("booke: Added crit/mc
exception handler for e500v2") from the kvm-ppc tree.

I fixed it up (see below - could do with checking) and can carry the fix
as necessary.
-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

diff --cc arch/powerpc/kvm/booke_interrupts.S
index 8fd4b2a,09456c4..0000000
--- a/arch/powerpc/kvm/booke_interrupts.S
+++ b/arch/powerpc/kvm/booke_interrupts.S
@@@ -52,16 -53,21 +52,21 @@@
                         (1<<BOOKE_INTERRUPT_PROGRAM) | \
                         (1<<BOOKE_INTERRUPT_DTLB_MISS))
  
- .macro KVM_HANDLER ivor_nr
+ .macro KVM_HANDLER ivor_nr scratch srr0
  _GLOBAL(kvmppc_handler_\ivor_nr)
  	/* Get pointer to vcpu and record exit number. */
- 	mtspr	SPRN_SPRG_WSCRATCH0, r4
+ 	mtspr	\scratch , r4
  	mfspr	r4, SPRN_SPRG_RVCPU
 -	stw	r3, VCPU_GPR(r3)(r4)
 -	stw	r5, VCPU_GPR(r5)(r4)
 -	stw	r6, VCPU_GPR(r6)(r4)
++	stw	r3, VCPU_GPR(R3)(r4)
 +	stw	r5, VCPU_GPR(R5)(r4)
 +	stw	r6, VCPU_GPR(R6)(r4)
+ 	mfspr	r3, \scratch
  	mfctr	r5
- 	lis	r6, kvmppc_resume_host@h
 -	stw	r3, VCPU_GPR(r4)(r4)
++	stw	r3, VCPU_GPR(R4)(r4)
  	stw	r5, VCPU_CTR(r4)
+ 	mfspr	r3, \srr0
+ 	lis	r6, kvmppc_resume_host@h
+ 	stw	r3, VCPU_PC(r4)
  	li	r5, \ivor_nr
  	ori	r6, r6, kvmppc_resume_host@l
  	mtctr	r6
@@@ -99,12 -104,11 +103,11 @@@ _GLOBAL(kvmppc_handler_len
   *  r5: KVM exit number
   */
  _GLOBAL(kvmppc_resume_host)
- 	stw	r3, VCPU_GPR(R3)(r4)
  	mfcr	r3
  	stw	r3, VCPU_CR(r4)
 -	stw	r7, VCPU_GPR(r7)(r4)
 -	stw	r8, VCPU_GPR(r8)(r4)
 -	stw	r9, VCPU_GPR(r9)(r4)
 +	stw	r7, VCPU_GPR(R7)(r4)
 +	stw	r8, VCPU_GPR(R8)(r4)
 +	stw	r9, VCPU_GPR(R9)(r4)
  
  	li	r6, 1
  	slw	r6, r6, r5

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