[PULL 10/35] ppc/pnv: Add support for HRMOR on Radix host

[David Gibson <david@gibson.dropbear.id.au>]

From: Cédric Le Goater <clg@kaod.org>

When in HV mode, if EA[0] is 0, the Hypervisor Offset Real Mode
Register controls the access.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20200127144154.10170-2-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 target/ppc/mmu-radix64.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/target/ppc/mmu-radix64.c b/target/ppc/mmu-radix64.c
index 066e324464..224e646c50 100644
--- a/target/ppc/mmu-radix64.c
+++ b/target/ppc/mmu-radix64.c
@@ -235,6 +235,12 @@ int ppc_radix64_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr, int rwx,
         /* In real mode top 4 effective addr bits (mostly) ignored */
         raddr = eaddr & 0x0FFFFFFFFFFFFFFFULL;
 
+        /* In HV mode, add HRMOR if top EA bit is clear */
+        if (msr_hv || !env->has_hv_mode) {
+            if (!(eaddr >> 63)) {
+                raddr |= env->spr[SPR_HRMOR];
+           }
+        }
         tlb_set_page(cs, eaddr & TARGET_PAGE_MASK, raddr & TARGET_PAGE_MASK,
                      PAGE_READ | PAGE_WRITE | PAGE_EXEC, mmu_idx,
                      TARGET_PAGE_SIZE);
-- 
2.24.1