diff options
Diffstat (limited to 'arch/powerpc/kvm/book3s_hv_rmhandlers.S')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv_rmhandlers.S | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index 17936f82d3c7..42639fba89e8 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -989,13 +989,14 @@ ALT_FTR_SECTION_END_IFCLR(CPU_FTR_ARCH_300) beq no_xive ld r11, VCPU_XIVE_SAVED_STATE(r4) li r9, TM_QW1_OS - stdcix r11,r9,r10 eieio + stdcix r11,r9,r10 lwz r11, VCPU_XIVE_CAM_WORD(r4) li r9, TM_QW1_OS + TM_WORD2 stwcix r11,r9,r10 li r9, 1 stw r9, VCPU_XIVE_PUSHED(r4) + eieio no_xive: #endif /* CONFIG_KVM_XICS */ @@ -1121,6 +1122,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR) BEGIN_FTR_SECTION mtspr SPRN_PPR, r0 END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR) + +/* Move canary into DSISR to check for later */ +BEGIN_FTR_SECTION + li r0, 0x7fff + mtspr SPRN_HDSISR, r0 +END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) + ld r0, VCPU_GPR(R0)(r4) ld r4, VCPU_GPR(R4)(r4) @@ -1303,6 +1311,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR) bne 3f BEGIN_FTR_SECTION PPC_MSGSYNC + lwsync END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) lbz r0, HSTATE_HOST_IPI(r13) cmpwi r0, 0 @@ -1393,8 +1402,8 @@ guest_exit_cont: /* r9 = vcpu, r12 = trap, r13 = paca */ cmpldi cr0, r10, 0 beq 1f /* First load to pull the context, we ignore the value */ - lwzx r11, r7, r10 eieio + lwzx r11, r7, r10 /* Second load to recover the context state (Words 0 and 1) */ ldx r11, r6, r10 b 3f @@ -1402,8 +1411,8 @@ guest_exit_cont: /* r9 = vcpu, r12 = trap, r13 = paca */ cmpldi cr0, r10, 0 beq 1f /* First load to pull the context, we ignore the value */ - lwzcix r11, r7, r10 eieio + lwzcix r11, r7, r10 /* Second load to recover the context state (Words 0 and 1) */ ldcix r11, r6, r10 3: std r11, VCPU_XIVE_SAVED_STATE(r9) @@ -1413,6 +1422,7 @@ guest_exit_cont: /* r9 = vcpu, r12 = trap, r13 = paca */ stw r10, VCPU_XIVE_PUSHED(r9) stb r10, (VCPU_XIVE_SAVED_STATE+3)(r9) stb r0, (VCPU_XIVE_SAVED_STATE+4)(r9) + eieio 1: #endif /* CONFIG_KVM_XICS */ /* Save more register state */ @@ -1956,9 +1966,14 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_TYPE_RADIX) kvmppc_hdsi: ld r3, VCPU_KVM(r9) lbz r0, KVM_RADIX(r3) - cmpwi r0, 0 mfspr r4, SPRN_HDAR mfspr r6, SPRN_HDSISR +BEGIN_FTR_SECTION + /* Look for DSISR canary. If we find it, retry instruction */ + cmpdi r6, 0x7fff + beq 6f +END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) + cmpwi r0, 0 bne .Lradix_hdsi /* on radix, just save DAR/DSISR/ASDR */ /* HPTE not found fault or protection fault? */ andis. r0, r6, (DSISR_NOHPTE | DSISR_PROTFAULT)@h @@ -2776,6 +2791,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S) PPC_MSGCLR(6) /* see if it's a host IPI */ li r3, 1 +BEGIN_FTR_SECTION + PPC_MSGSYNC + lwsync +END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) lbz r0, HSTATE_HOST_IPI(r13) cmpwi r0, 0 bnelr |