[PATCH 1/1] spapr/rtas: Add MinMem to ibm, get-system-parameter RTAS call

[Leonardo Bras]

Add support for MinMem SPLPAR Characteristic on emulated
RTAS call ibm,get-system-parameter.

MinMem represents Minimum Memory, that is described in LOPAPR as:
The minimum amount of main store that is needed to power on the
partition. Minimum memory is expressed in MB of storage.

This  provides a way for the OS to discern hotplugged LMBs and
LMBs that have started with the VM, allowing it to better provide
a way for memory hot-removal.

Signed-off-by: Leonardo Bras <address@hidden>
---
 hw/ppc/spapr_rtas.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hw/ppc/spapr_rtas.c b/hw/ppc/spapr_rtas.c
index 9fb8c8632a..0f3fbca7af 100644
--- a/hw/ppc/spapr_rtas.c
+++ b/hw/ppc/spapr_rtas.c
@@ -276,10 +276,12 @@ static void rtas_ibm_get_system_parameter(PowerPCCPU *cpu,
 
     switch (parameter) {
     case RTAS_SYSPARM_SPLPAR_CHARACTERISTICS: {
-        char *param_val = g_strdup_printf("MaxEntCap=%d,"
+        char *param_val = g_strdup_printf("MinMem=%" PRIu64 ","
+                                          "MaxEntCap=%d,"
                                           "DesMem=%" PRIu64 ","
                                           "DesProcs=%d,"
                                           "MaxPlatProcs=%d",
+                                          ms->ram_size / MiB,
                                           ms->smp.max_cpus,
                                           ms->ram_size / MiB,
                                           ms->smp.cpus,
-- 
2.24.1