H_SET_MODE is used for controlling various partition settings. One
of these settings is the endianness a guest takes its exceptions in.
Signed-off-by: Anton Blanchard <an...@samba.org>
---
hw/ppc/spapr.c | 2 +-
hw/ppc/spapr_hcall.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
include/hw/ppc/spapr.h | 12 +++++++++++-
3 files changed, 56 insertions(+), 2 deletions(-)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 16bfab9..de639f6 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -262,7 +262,7 @@ static void *spapr_create_fdt_skel(const char *cpu_model,
uint32_t start_prop = cpu_to_be32(initrd_base);
uint32_t end_prop = cpu_to_be32(initrd_base + initrd_size);
char hypertas_prop[] = "hcall-pft\0hcall-term\0hcall-dabr\0hcall-interrupt"
- "\0hcall-tce\0hcall-vio\0hcall-splpar\0hcall-bulk";
+ "\0hcall-tce\0hcall-vio\0hcall-splpar\0hcall-bulk\0hcall-set-mode";
char qemu_hypertas_prop[] = "hcall-memop1";
uint32_t refpoints[] = {cpu_to_be32(0x4), cpu_to_be32(0x4)};
uint32_t interrupt_server_ranges_prop[] = {0, cpu_to_be32(smp_cpus)};
diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c
index 67d6cd9..79e1b61 100644
--- a/hw/ppc/spapr_hcall.c
+++ b/hw/ppc/spapr_hcall.c
@@ -657,6 +657,48 @@ static target_ulong h_logical_dcbf(PowerPCCPU *cpu,
sPAPREnvironment *spapr,
return H_SUCCESS;
}
+static target_ulong h_set_mode(PowerPCCPU *cpu, sPAPREnvironment *spapr,
+ target_ulong opcode, target_ulong *args)
+{
+ CPUState *cs;
+ target_ulong mflags = args[0];
+ target_ulong resource = args[1];
+ target_ulong value1 = args[2];
+ target_ulong value2 = args[3];
+
+ if (resource == 4) {
+ if (value1) {
+ return H_P3;
+ }
+ if (value2) {
+ return H_P4;
+ }
+
+ switch (mflags) {
+ case 0:
+ for (cs = first_cpu; cs != NULL; cs = cs->next_cpu) {
+ PowerPCCPU *cp = POWERPC_CPU(cs);
+ CPUPPCState *env = &cp->env;
+ env->spr[SPR_LPCR] &= ~LPCR_ILE;
+ }
+ return H_SUCCESS;
+
+ case 1:
+ for (cs = first_cpu; cs != NULL; cs = cs->next_cpu) {
+ PowerPCCPU *cp = POWERPC_CPU(cs);
+ CPUPPCState *env = &cp->env;
+ env->spr[SPR_LPCR] |= LPCR_ILE;
+ }
+ return H_SUCCESS;
+
+ default:
+ return H_UNSUPPORTED_FLAG;
+ }
+ }
+
+ return H_P2;
+}
+
static spapr_hcall_fn papr_hypercall_table[(MAX_HCALL_OPCODE / 4) + 1];
static spapr_hcall_fn kvmppc_hypercall_table[KVMPPC_HCALL_MAX -
KVMPPC_HCALL_BASE + 1];
@@ -734,6 +776,8 @@ static void hypercall_register_types(void)
/* qemu/KVM-PPC specific hcalls */
spapr_register_hypercall(KVMPPC_H_RTAS, h_rtas);
+
+ spapr_register_hypercall(H_SET_MODE, h_set_mode);
}
type_init(hypercall_register_types)
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index 9fc1972..3ceec7a 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -109,7 +109,16 @@ typedef struct sPAPREnvironment {
#define H_NOT_ENOUGH_RESOURCES -44
#define H_R_STATE -45
#define H_RESCINDEND -46
+#define H_P2 -55
+#define H_P3 -56
+#define H_P4 -57
+#define H_P5 -58
+#define H_P6 -59
+#define H_P7 -60
+#define H_P8 -61
+#define H_P9 -62
#define H_MULTI_THREADS_ACTIVE -9005
+#define H_UNSUPPORTED_FLAG -256
/* Long Busy is a condition that can be returned by the firmware
@@ -267,7 +276,8 @@ typedef struct sPAPREnvironment {
#define H_GET_EM_PARMS 0x2B8
#define H_SET_MPP 0x2D0
#define H_GET_MPP 0x2D4
-#define MAX_HCALL_OPCODE H_GET_MPP
+#define H_SET_MODE 0x31C
+#define MAX_HCALL_OPCODE H_SET_MODE
/* The hcalls above are standardized in PAPR and implemented by pHyp
* as well.
--
1.8.1.2
