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authorPaul Mackerras <paulus@samba.org>2014-03-13 05:02:02 -0400
committerPaolo Bonzini <pbonzini@redhat.com>2014-03-13 05:46:52 -0400
commita5b0ccb0b5d080c0decb4c9208d9bb6072defa50 (patch)
tree0204d4f029fd9cc37d524957e42c8b1d9f3d129f /arch
parentb73117c49364551ff789db7c424a115ac5b77850 (diff)
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kvm/book3s_hv_rmhandlers.S67
1 files changed, 0 insertions, 67 deletions
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index e66d4ec04d95..781e6bf69afb 100644
--- 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)
15041: addi r8,r8,16 15041: addi r8,r8,16
1505 .endr 1505 .endr
1506 1506
1507 /* Save DEC */
1508 mfspr r5,SPRN_DEC
1509 mftb r6
1510 extsw r5,r5
1511 add r5,r5,r6
1512 std r5,VCPU_DEC_EXPIRES(r9)
1513
1514BEGIN_FTR_SECTION
1515 b 8f
1516END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
1517 /* Turn on TM so we can access TFHAR/TFIAR/TEXASR */
1518 mfmsr r8
1519 li r0, 1
1520 rldimi r8, r0, MSR_TM_LG, 63-MSR_TM_LG
1521 mtmsrd r8
1522
1523 /* Save POWER8-specific registers */
1524 mfspr r5, SPRN_IAMR
1525 mfspr r6, SPRN_PSPB
1526 mfspr r7, SPRN_FSCR
1527 std r5, VCPU_IAMR(r9)
1528 stw r6, VCPU_PSPB(r9)
1529 std r7, VCPU_FSCR(r9)
1530 mfspr r5, SPRN_IC
1531 mfspr r6, SPRN_VTB
1532 mfspr r7, SPRN_TAR
1533 std r5, VCPU_IC(r9)
1534 std r6, VCPU_VTB(r9)
1535 std r7, VCPU_TAR(r9)
1536#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
1537 mfspr r5, SPRN_TFHAR
1538 mfspr r6, SPRN_TFIAR
1539 mfspr r7, SPRN_TEXASR
1540 std r5, VCPU_TFHAR(r9)
1541 std r6, VCPU_TFIAR(r9)
1542 std r7, VCPU_TEXASR(r9)
1543#endif
1544 mfspr r8, SPRN_EBBHR
1545 std r8, VCPU_EBBHR(r9)
1546 mfspr r5, SPRN_EBBRR
1547 mfspr r6, SPRN_BESCR
1548 mfspr r7, SPRN_CSIGR
1549 mfspr r8, SPRN_TACR
1550 std r5, VCPU_EBBRR(r9)
1551 std r6, VCPU_BESCR(r9)
1552 std r7, VCPU_CSIGR(r9)
1553 std r8, VCPU_TACR(r9)
1554 mfspr r5, SPRN_TCSCR
1555 mfspr r6, SPRN_ACOP
1556 mfspr r7, SPRN_PID
1557 mfspr r8, SPRN_WORT
1558 std r5, VCPU_TCSCR(r9)
1559 std r6, VCPU_ACOP(r9)
1560 stw r7, VCPU_GUEST_PID(r9)
1561 std r8, VCPU_WORT(r9)
15628:
1563
1564 /* Save and reset AMR and UAMOR before turning on the MMU */
1565BEGIN_FTR_SECTION
1566 mfspr r5,SPRN_AMR
1567 mfspr r6,SPRN_UAMOR
1568 std r5,VCPU_AMR(r9)
1569 std r6,VCPU_UAMOR(r9)
1570 li r6,0
1571 mtspr SPRN_AMR,r6
1572END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
1573
1574 /* Unset guest mode */ 1507 /* Unset guest mode */
1575 li r0, KVM_GUEST_MODE_NONE 1508 li r0, KVM_GUEST_MODE_NONE
1576 stb r0, HSTATE_IN_GUEST(r13) 1509 stb r0, HSTATE_IN_GUEST(r13)