KVM: PPC: Book3S HV: Remove bogus duplicate code

Commit 7b490411c37f ("KVM: PPC: Book3S HV: Add new state for
transactional memory") incorrectly added some duplicate code to the
guest exit path because I didn't manage to clean up after a rebase
correctly.  This removes the extraneous material.  The presence of
this extraneous code causes host crashes whenever a guest is run.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index e66d4ec04d953a78a314b43a3a07f47ca27f5ae7..781e6bf69afb13c8162adf39e69c7be6851c9f21 100644 (file)
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -1504,73 +1504,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
 1:     addi    r8,r8,16
        .endr
 
-       /* Save DEC */
-       mfspr   r5,SPRN_DEC
-       mftb    r6
-       extsw   r5,r5
-       add     r5,r5,r6
-       std     r5,VCPU_DEC_EXPIRES(r9)
-
-BEGIN_FTR_SECTION
-       b       8f
-END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
-       /* Turn on TM so we can access TFHAR/TFIAR/TEXASR */
-       mfmsr   r8
-       li      r0, 1
-       rldimi  r8, r0, MSR_TM_LG, 63-MSR_TM_LG
-       mtmsrd  r8
-
-       /* Save POWER8-specific registers */
-       mfspr   r5, SPRN_IAMR
-       mfspr   r6, SPRN_PSPB
-       mfspr   r7, SPRN_FSCR
-       std     r5, VCPU_IAMR(r9)
-       stw     r6, VCPU_PSPB(r9)
-       std     r7, VCPU_FSCR(r9)
-       mfspr   r5, SPRN_IC
-       mfspr   r6, SPRN_VTB
-       mfspr   r7, SPRN_TAR
-       std     r5, VCPU_IC(r9)
-       std     r6, VCPU_VTB(r9)
-       std     r7, VCPU_TAR(r9)
-#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
-       mfspr   r5, SPRN_TFHAR
-       mfspr   r6, SPRN_TFIAR
-       mfspr   r7, SPRN_TEXASR
-       std     r5, VCPU_TFHAR(r9)
-       std     r6, VCPU_TFIAR(r9)
-       std     r7, VCPU_TEXASR(r9)
-#endif
-       mfspr   r8, SPRN_EBBHR
-       std     r8, VCPU_EBBHR(r9)
-       mfspr   r5, SPRN_EBBRR
-       mfspr   r6, SPRN_BESCR
-       mfspr   r7, SPRN_CSIGR
-       mfspr   r8, SPRN_TACR
-       std     r5, VCPU_EBBRR(r9)
-       std     r6, VCPU_BESCR(r9)
-       std     r7, VCPU_CSIGR(r9)
-       std     r8, VCPU_TACR(r9)
-       mfspr   r5, SPRN_TCSCR
-       mfspr   r6, SPRN_ACOP
-       mfspr   r7, SPRN_PID
-       mfspr   r8, SPRN_WORT
-       std     r5, VCPU_TCSCR(r9)
-       std     r6, VCPU_ACOP(r9)
-       stw     r7, VCPU_GUEST_PID(r9)
-       std     r8, VCPU_WORT(r9)
-8:
-
-       /* Save and reset AMR and UAMOR before turning on the MMU */
-BEGIN_FTR_SECTION
-       mfspr   r5,SPRN_AMR
-       mfspr   r6,SPRN_UAMOR
-       std     r5,VCPU_AMR(r9)
-       std     r6,VCPU_UAMOR(r9)
-       li      r6,0
-       mtspr   SPRN_AMR,r6
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
-
        /* Unset guest mode */
        li      r0, KVM_GUEST_MODE_NONE
        stb     r0, HSTATE_IN_GUEST(r13)