[Qemu-devel] [PATCH 2/4] spapr: Add RTAS sysparm UUID

[Sam Bobroff <sam.bobroff@au1.ibm.com>]

Add support for the UUID parameter to the emulated RTAS call
ibm,get-system-parameter.

Return the guest's UUID as the value for the RTAS UUID system
parameter, or null (a zero length result) if it is not set.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
---
 hw/ppc/spapr_rtas.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/hw/ppc/spapr_rtas.c b/hw/ppc/spapr_rtas.c
index ea4a2b2..4f87673 100644
--- a/hw/ppc/spapr_rtas.c
+++ b/hw/ppc/spapr_rtas.c
@@ -225,6 +225,7 @@ static void rtas_stop_self(PowerPCCPU *cpu, sPAPREnvironment *spapr,
 }
 
 #define DIAGNOSTICS_RUN_MODE        42
+#define UUID                        48
 
 static void rtas_ibm_get_system_parameter(PowerPCCPU *cpu,
                                           sPAPREnvironment *spapr,
@@ -244,6 +245,10 @@ static void rtas_ibm_get_system_parameter(PowerPCCPU *cpu,
             ret = RTAS_OUT_SUCCESS;
         }
         break;
+    case UUID:
+        rtas_st_buffer(buffer, length, qemu_uuid, (qemu_uuid_set ? 16 : 0));
+        ret = RTAS_OUT_SUCCESS;
+        break;
     }
 
     rtas_st(rets, 0, ret);
@@ -260,6 +265,7 @@ static void rtas_ibm_set_system_parameter(PowerPCCPU *cpu,
 
     switch (parameter) {
     case DIAGNOSTICS_RUN_MODE:
+    case UUID:
         ret = RTAS_OUT_NOT_AUTHORIZED;
         break;
     }
-- 
1.9.0