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authorCédric Le Goater <clg@kaod.org>2019-05-27 09:17:22 +0200
committerDavid Gibson <david@gibson.dropbear.id.au>2019-05-29 11:39:47 +1000
commitce4b1b56852ea741170ae85d3b8c0771c1ca7c9e (patch)
tree45b0052918fe9e3a000a70500054696519e2ef15 /hw
parent83b90bf026767df5faefe3daca9f1649a5591418 (diff)
downloadfocaccia-qemu-ce4b1b56852ea741170ae85d3b8c0771c1ca7c9e.tar.gz
focaccia-qemu-ce4b1b56852ea741170ae85d3b8c0771c1ca7c9e.zip
ppc/pnv: add dummy XSCOM registers for PRD initialization
PRD (Processor recovery diagnostics) is a service available on
OpenPower systems. The opal-prd daemon initializes the PowerPC
Processor through the XSCOM bus and then waits for hardware diagnostic
events.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190527071722.31424-1-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw')
-rw-r--r--hw/ppc/pnv_xscom.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/hw/ppc/pnv_xscom.c b/hw/ppc/pnv_xscom.c
index c285ef514e..f53a6d7a94 100644
--- a/hw/ppc/pnv_xscom.c
+++ b/hw/ppc/pnv_xscom.c
@@ -29,6 +29,12 @@
 
 #include <libfdt.h>
 
+/* PRD registers */
+#define PRD_P8_IPOLL_REG_MASK           0x01020013
+#define PRD_P8_IPOLL_REG_STATUS         0x01020014
+#define PRD_P9_IPOLL_REG_MASK           0x000F0033
+#define PRD_P9_IPOLL_REG_STATUS         0x000F0034
+
 static void xscom_complete(CPUState *cs, uint64_t hmer_bits)
 {
     /*
@@ -70,6 +76,12 @@ static uint64_t xscom_read_default(PnvChip *chip, uint32_t pcba)
     case 0x1010c00:     /* PIBAM FIR */
     case 0x1010c03:     /* PIBAM FIR MASK */
 
+        /* PRD registers */
+    case PRD_P8_IPOLL_REG_MASK:
+    case PRD_P8_IPOLL_REG_STATUS:
+    case PRD_P9_IPOLL_REG_MASK:
+    case PRD_P9_IPOLL_REG_STATUS:
+
         /* P9 xscom reset */
     case 0x0090018:     /* Receive status reg */
     case 0x0090012:     /* log register */
@@ -124,6 +136,12 @@ static bool xscom_write_default(PnvChip *chip, uint32_t pcba, uint64_t val)
     case 0x201302a:     /* CAPP stuff */
     case 0x2013801:     /* CAPP stuff */
     case 0x2013802:     /* CAPP stuff */
+
+        /* P8 PRD registers */
+    case PRD_P8_IPOLL_REG_MASK:
+    case PRD_P8_IPOLL_REG_STATUS:
+    case PRD_P9_IPOLL_REG_MASK:
+    case PRD_P9_IPOLL_REG_STATUS:
         return true;
     default:
         return false;