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[v3,06/10] ppc: Initialize AMOR in PAPR mode

Message ID 1458564760-31993-7-git-send-email-clg@fr.ibm.com
State New
Headers show

Commit Message

Cédric Le Goater March 21, 2016, 12:52 p.m. UTC 
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>

Make sure we give the guest full authorization

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
---
 target-ppc/translate_init.c |    4 ++++
 1 file changed, 4 insertions(+)
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Patch

Index: qemu-dgibson-for-2.6.git/target-ppc/translate_init.c
===================================================================
--- qemu-dgibson-for-2.6.git.orig/target-ppc/translate_init.c
+++ qemu-dgibson-for-2.6.git/target-ppc/translate_init.c
@@ -8398,6 +8398,7 @@  POWERPC_FAMILY(POWER8)(ObjectClass *oc,
 void cpu_ppc_set_papr(PowerPCCPU *cpu)
 {
     CPUPPCState *env = &cpu->env;
+    ppc_spr_t *amor = &env->spr_cb[SPR_AMOR];
 
     /* PAPR always has exception vectors in RAM not ROM. To ensure this,
      * MSR[IP] should never be set.
@@ -8406,6 +8407,9 @@  void cpu_ppc_set_papr(PowerPCCPU *cpu)
      */
     env->msr_mask &= ~((1ull << MSR_EP) | MSR_HVB);
 
+    /* Set a full AMOR so guest can use the AMR as it sees fit */
+    env->spr[SPR_AMOR] = amor->default_value = 0xffffffffffffffffull;
+
     /* Tell KVM that we're in PAPR mode */
     if (kvm_enabled()) {
         kvmppc_set_papr(cpu);