KVM: PPC: Book3S HV: Synthesize segment fault if SLB lookup fails

[cascardo/linux.git] / arch / powerpc / kvm / book3s_hv_rmhandlers.S

diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index b1dab8d..3c6badc 100644 (file)
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -1749,7 +1749,8 @@ kvmppc_hdsi:
        beq     3f
        clrrdi  r0, r4, 28
        PPC_SLBFEE_DOT(R5, R0)          /* if so, look up SLB */
-       bne     1f                      /* if no SLB entry found */
+       li      r0, BOOK3S_INTERRUPT_DATA_SEGMENT
+       bne     7f                      /* if no SLB entry found */
 4:     std     r4, VCPU_FAULT_DAR(r9)
        stw     r6, VCPU_FAULT_DSISR(r9)
 
@@ -1768,14 +1769,15 @@ kvmppc_hdsi:
        cmpdi   r3, -2                  /* MMIO emulation; need instr word */
        beq     2f
 
-       /* Synthesize a DSI for the guest */
+       /* Synthesize a DSI (or DSegI) for the guest */
        ld      r4, VCPU_FAULT_DAR(r9)
        mr      r6, r3
-1:     mtspr   SPRN_DAR, r4
+1:     li      r0, BOOK3S_INTERRUPT_DATA_STORAGE
        mtspr   SPRN_DSISR, r6
+7:     mtspr   SPRN_DAR, r4
        mtspr   SPRN_SRR0, r10
        mtspr   SPRN_SRR1, r11
-       li      r10, BOOK3S_INTERRUPT_DATA_STORAGE
+       mr      r10, r0
        bl      kvmppc_msr_interrupt
 fast_interrupt_c_return:
 6:     ld      r7, VCPU_CTR(r9)
@@ -1823,7 +1825,8 @@ kvmppc_hisi:
        beq     3f
        clrrdi  r0, r10, 28
        PPC_SLBFEE_DOT(R5, R0)          /* if so, look up SLB */
-       bne     1f                      /* if no SLB entry found */
+       li      r0, BOOK3S_INTERRUPT_INST_SEGMENT
+       bne     7f                      /* if no SLB entry found */
 4:
        /* Search the hash table. */
        mr      r3, r9                  /* vcpu pointer */
@@ -1840,11 +1843,12 @@ kvmppc_hisi:
        cmpdi   r3, -1                  /* handle in kernel mode */
        beq     guest_exit_cont
 
-       /* Synthesize an ISI for the guest */
+       /* Synthesize an ISI (or ISegI) for the guest */
        mr      r11, r3
-1:     mtspr   SPRN_SRR0, r10
+1:     li      r0, BOOK3S_INTERRUPT_INST_STORAGE
+7:     mtspr   SPRN_SRR0, r10
        mtspr   SPRN_SRR1, r11
-       li      r10, BOOK3S_INTERRUPT_INST_STORAGE
+       mr      r10, r0
        bl      kvmppc_msr_interrupt
        b       fast_interrupt_c_return