From: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Date: Fri, 10 Feb 2017 05:25:54 +0000 (+1100)
Subject: target/ppc/POWER9: Direct all instr and data storage interrupts to the hypv
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=506590836144af7d0de3fc4c691bb5ed49d41645;p=qemu.git

target/ppc/POWER9: Direct all instr and data storage interrupts to the hypv

The vpm0 bit was removed from the LPCR in POWER9, this bit controlled
whether ISI and DSI interrupts were directed to the hypervisor or the
partition. These interrupts now go to the hypervisor irrespective, thus
it is no longer necessary to check the vmp0 bit in the LPCR.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---

diff --git a/target/ppc/mmu-hash64.c b/target/ppc/mmu-hash64.c
index c09255d38a..76669ed82c 100644
--- a/target/ppc/mmu-hash64.c
+++ b/target/ppc/mmu-hash64.c
@@ -652,7 +652,15 @@ static void ppc_hash64_set_isi(CPUState *cs, CPUPPCState *env,
     if (msr_ir) {
         vpm = !!(env->spr[SPR_LPCR] & LPCR_VPM1);
     } else {
-        vpm = !!(env->spr[SPR_LPCR] & LPCR_VPM0);
+        switch (env->mmu_model) {
+        case POWERPC_MMU_3_00:
+            /* Field deprecated in ISAv3.00 - interrupts always go to hyperv */
+            vpm = true;
+            break;
+        default:
+            vpm = !!(env->spr[SPR_LPCR] & LPCR_VPM0);
+            break;
+        }
     }
     if (vpm && !msr_hv) {
         cs->exception_index = POWERPC_EXCP_HISI;
@@ -670,7 +678,15 @@ static void ppc_hash64_set_dsi(CPUState *cs, CPUPPCState *env, uint64_t dar,
     if (msr_dr) {
         vpm = !!(env->spr[SPR_LPCR] & LPCR_VPM1);
     } else {
-        vpm = !!(env->spr[SPR_LPCR] & LPCR_VPM0);
+        switch (env->mmu_model) {
+        case POWERPC_MMU_3_00:
+            /* Field deprecated in ISAv3.00 - interrupts always go to hyperv */
+            vpm = true;
+            break;
+        default:
+            vpm = !!(env->spr[SPR_LPCR] & LPCR_VPM0);
+            break;
+        }
     }
     if (vpm && !msr_hv) {
         cs->exception_index = POWERPC_EXCP_HDSI;