spapr: Remove obsolete ram_limit field from sPAPRMachineState

The ram_limit field was imported from sPAPREnvironment where it predates
the machine's ram size being available generically from machine->ram_size.

Worse, the existing code was inconsistent about where it got the ram size
from.  Sometimes it used spapr->ram_limit, sometimes the global 'ram_size'
and sometimes a local 'ram_size' masking the global.

This cleans up the code to consistently use machine->ram_size, eliminating
spapr->ram_limit in the process.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c
index 1a20884706..652ddf6e37 100644
--- a/hw/ppc/spapr_hcall.c
+++ b/hw/ppc/spapr_hcall.c
@@ -87,6 +87,7 @@ static inline bool valid_pte_index(CPUPPCState *env, target_ulong pte_index)
 static target_ulong h_enter(PowerPCCPU *cpu, sPAPRMachineState *spapr,
                             target_ulong opcode, target_ulong *args)
 {
+    MachineState *machine = MACHINE(spapr);
     CPUPPCState *env = &cpu->env;
     target_ulong flags = args[0];
     target_ulong pte_index = args[1];
@@ -118,7 +119,7 @@ static target_ulong h_enter(PowerPCCPU *cpu, sPAPRMachineState *spapr,
 
     raddr = (ptel & HPTE64_R_RPN) & ~((1ULL << page_shift) - 1);
 
-    if (raddr < spapr->ram_limit) {
+    if (raddr < machine->ram_size) {
         /* Regular RAM - should have WIMG=0010 */
         if ((ptel & HPTE64_R_WIMG) != HPTE64_R_M) {
             return H_PARAMETER;