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[Qemu-ppc] [PULL 17/32] spapr-rtas: add ibm, (get|set)-system-parameter
From: |
Alexander Graf |
Subject: |
[Qemu-ppc] [PULL 17/32] spapr-rtas: add ibm, (get|set)-system-parameter |
Date: |
Fri, 20 Dec 2013 02:00:39 +0100 |
From: Alexey Kardashevskiy <address@hidden>
This adds very basic handlers for ibm,get-system-parameter and
ibm,set-system-parameter RTAS calls.
The only parameter handled at the moment is
"platform-processor-diagnostics-run-mode" which is always disabled and
does not support changing. This is expected to make
"ppc64_cpu --run-mode=1" happy.
Signed-off-by: Alexey Kardashevskiy <address@hidden>
[agraf: s/papameter/parameter/g]
Signed-off-by: Alexander Graf <address@hidden>
---
hw/ppc/spapr_rtas.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
include/hw/ppc/spapr.h | 2 ++
2 files changed, 49 insertions(+)
diff --git a/hw/ppc/spapr_rtas.c b/hw/ppc/spapr_rtas.c
index f9897a5..6149907 100644
--- a/hw/ppc/spapr_rtas.c
+++ b/hw/ppc/spapr_rtas.c
@@ -224,6 +224,49 @@ static void rtas_stop_self(PowerPCCPU *cpu,
sPAPREnvironment *spapr,
env->msr = 0;
}
+#define DIAGNOSTICS_RUN_MODE 42
+
+static void rtas_ibm_get_system_parameter(PowerPCCPU *cpu,
+ sPAPREnvironment *spapr,
+ uint32_t token, uint32_t nargs,
+ target_ulong args,
+ uint32_t nret, target_ulong rets)
+{
+ target_ulong parameter = rtas_ld(args, 0);
+ target_ulong buffer = rtas_ld(args, 1);
+ target_ulong length = rtas_ld(args, 2);
+ target_ulong ret = RTAS_OUT_NOT_SUPPORTED;
+
+ switch (parameter) {
+ case DIAGNOSTICS_RUN_MODE:
+ if (length == 1) {
+ rtas_st(buffer, 0, 0);
+ ret = RTAS_OUT_SUCCESS;
+ }
+ break;
+ }
+
+ rtas_st(rets, 0, ret);
+}
+
+static void rtas_ibm_set_system_parameter(PowerPCCPU *cpu,
+ sPAPREnvironment *spapr,
+ uint32_t token, uint32_t nargs,
+ target_ulong args,
+ uint32_t nret, target_ulong rets)
+{
+ target_ulong parameter = rtas_ld(args, 0);
+ target_ulong ret = RTAS_OUT_NOT_SUPPORTED;
+
+ switch (parameter) {
+ case DIAGNOSTICS_RUN_MODE:
+ ret = RTAS_OUT_NOT_AUTHORIZED;
+ break;
+ }
+
+ rtas_st(rets, 0, ret);
+}
+
static struct rtas_call {
const char *name;
spapr_rtas_fn fn;
@@ -345,6 +388,10 @@ static void core_rtas_register_types(void)
rtas_query_cpu_stopped_state);
spapr_rtas_register("start-cpu", rtas_start_cpu);
spapr_rtas_register("stop-self", rtas_stop_self);
+ spapr_rtas_register("ibm,get-system-parameter",
+ rtas_ibm_get_system_parameter);
+ spapr_rtas_register("ibm,set-system-parameter",
+ rtas_ibm_set_system_parameter);
}
type_init(core_rtas_register_types)
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index 085cfa7..b2f11e9 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -338,6 +338,8 @@ static inline int spapr_allocate_lsi(int hint)
#define RTAS_OUT_HW_ERROR -1
#define RTAS_OUT_BUSY -2
#define RTAS_OUT_PARAM_ERROR -3
+#define RTAS_OUT_NOT_SUPPORTED -3
+#define RTAS_OUT_NOT_AUTHORIZED -9002
static inline uint64_t ppc64_phys_to_real(uint64_t addr)
{
--
1.8.1.4
- [Qemu-ppc] [PULL 01/32] target-ppc: add stubs for KVM breakpoints, (continued)
- [Qemu-ppc] [PULL 01/32] target-ppc: add stubs for KVM breakpoints, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 14/32] Add stxvw4x, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 24/32] Add xxmrgh/xxmrgl, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 10/32] Add lxsdx, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 09/32] Add xxpermdi, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 13/32] Add stxsdx, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 12/32] Add lxvw4x, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 15/32] target-ppc: move POWER7+ to a separate family, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 23/32] Add Power7 VSX Logical Instructions, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 31/32] spapr: make sure RMA is in first mode of first memory node, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 17/32] spapr-rtas: add ibm, (get|set)-system-parameter,
Alexander Graf <=
- [Qemu-ppc] [PULL 19/32] spapr: tie spapr-nvram to -pflash, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 18/32] PPC: Use default pci bus name for grackle and heathrow, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 26/32] Add xxspltw, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 28/32] PPC: Add VSX to hflags, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 16/32] spapr-rtas: replace return code constants with macros, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 32/32] spapr: limit numa memory regions by ram size, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 29/32] device_tree: s/qemu_devtree/qemu_fdt globally, Alexander Graf, 2013/12/19
- [Qemu-ppc] [PULL 25/32] Add xxsel, Alexander Graf, 2013/12/19