linux-kernel - linux-next: manual merge of the kvm-arm tree with the arm64 tree

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Date:	Mon, 22 Feb 2016 13:33:22 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Christoffer Dall <cdall@...columbia.edu>,
	Marc Zyngier <marc.zyngier@....com>,
	Catalin Marinas <catalin.marinas@....com>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Ard Biesheuvel <ard.biesheuvel@...aro.org>
Subject: linux-next: manual merge of the kvm-arm tree with the arm64 tree

Hi all,

Today's linux-next merge of the kvm-arm tree got a conflict in:

  arch/arm64/kvm/hyp.S

between commit:

  a0bf9776cd0b ("arm64: kvm: deal with kernel symbols outside of linear mapping")

from the arm64 tree and commit:

  253dcab4c363 ("arm64: KVM: VHE: Patch out use of HVC")

from the kvm-arm tree.

I fixed it up (see below) and can carry the fix as necessary (no action
is required).

-- 
Cheers,
Stephen Rothwell

diff --cc arch/arm64/kvm/hyp.S
index 870578f84b1c,0689a74e6ba0..000000000000
--- a/arch/arm64/kvm/hyp.S
+++ b/arch/arm64/kvm/hyp.S
@@@ -17,10 -17,12 +17,12 @@@
  
  #include <linux/linkage.h>
  
+ #include <asm/alternative.h>
  #include <asm/assembler.h>
+ #include <asm/cpufeature.h>
  
  /*
 - * u64 kvm_call_hyp(void *hypfn, ...);
 + * u64 __kvm_call_hyp(void *hypfn, ...);
   *
   * This is not really a variadic function in the classic C-way and care must
   * be taken when calling this to ensure parameters are passed in registers
@@@ -37,7 -39,12 +39,12 @@@
   * used to implement __hyp_get_vectors in the same way as in
   * arch/arm64/kernel/hyp_stub.S.
   */
 -ENTRY(kvm_call_hyp)
 +ENTRY(__kvm_call_hyp)
+ alternative_if_not ARM64_HAS_VIRT_HOST_EXTN	
  	hvc	#0
  	ret
+ alternative_else
+ 	b	__vhe_hyp_call
+ 	nop
+ alternative_endif
 -ENDPROC(kvm_call_hyp)
 +ENDPROC(__kvm_call_hyp)