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[Qemu-ppc] [PATCH v3 08/12] target/ppc: Add new H-CALL shells for in mem


From: Sam Bobroff
Subject: [Qemu-ppc] [PATCH v3 08/12] target/ppc: Add new H-CALL shells for in memory table translation
Date: Thu, 2 Mar 2017 16:39:03 +1100

From: Suraj Jitindar Singh <address@hidden>

The use of the new in memory tables introduced in ISAv3.00 for translation,
also referred to as process tables, requires the introduction of 3 new
H-CALLs; H_REGISTER_PROCESS_TABLE, H_CLEAN_SLB, and H_INVALIDATE_PID.

Add shells for each of these and register them as the hypercall handlers.
Currently they all log an unimplemented hypercall and return H_FUNCTION.

Signed-off-by: Suraj Jitindar Singh <address@hidden>
---
Changes in v3:
* Brought in from Suraj's work.

 hw/ppc/spapr_hcall.c   | 31 +++++++++++++++++++++++++++++++
 include/hw/ppc/spapr.h |  3 +++
 2 files changed, 34 insertions(+)

diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c
index 0c1b0326ad..cd0d8b068c 100644
--- a/hw/ppc/spapr_hcall.c
+++ b/hw/ppc/spapr_hcall.c
@@ -878,6 +878,32 @@ static target_ulong h_set_mode(PowerPCCPU *cpu, 
sPAPRMachineState *spapr,
     return ret;
 }
 
+static target_ulong h_clean_slb(PowerPCCPU *cpu, sPAPRMachineState *spapr,
+                                target_ulong opcode, target_ulong *args)
+{
+    qemu_log_mask(LOG_UNIMP, "Unimplemented SPAPR hcall 0x" TARGET_FMT_lx 
"%s\n",
+                  opcode, " (H_CLEAN_SLB)");
+    return H_FUNCTION;
+}
+
+static target_ulong h_invalidate_pid(PowerPCCPU *cpu, sPAPRMachineState *spapr,
+                                     target_ulong opcode, target_ulong *args)
+{
+    qemu_log_mask(LOG_UNIMP, "Unimplemented SPAPR hcall 0x" TARGET_FMT_lx 
"%s\n",
+                  opcode, " (H_INVALIDATE_PID)");
+    return H_FUNCTION;
+}
+
+static target_ulong h_register_process_table(PowerPCCPU *cpu,
+                                             sPAPRMachineState *spapr,
+                                             target_ulong opcode,
+                                             target_ulong *args)
+{
+    qemu_log_mask(LOG_UNIMP, "Unimplemented SPAPR hcall 0x" TARGET_FMT_lx 
"%s\n",
+                  opcode, " (H_REGISTER_PROC_TBL)");
+    return H_FUNCTION;
+}
+
 #define H_SIGNAL_SYS_RESET_ALL         -1
 #define H_SIGNAL_SYS_RESET_ALLBUTSELF  -2
 
@@ -1094,6 +1120,11 @@ static void hypercall_register_types(void)
     spapr_register_hypercall(H_PAGE_INIT, h_page_init);
     spapr_register_hypercall(H_SET_MODE, h_set_mode);
 
+    /* In Memory Table MMU h-calls */
+    spapr_register_hypercall(H_CLEAN_SLB, h_clean_slb);
+    spapr_register_hypercall(H_INVALIDATE_PID, h_invalidate_pid);
+    spapr_register_hypercall(H_REGISTER_PROC_TBL, h_register_process_table);
+
     /* "debugger" hcalls (also used by SLOF). Note: We do -not- differenciate
      * here between the "CI" and the "CACHE" variants, they will use whatever
      * mapping attributes qemu is using. When using KVM, the kernel will
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index 24da5dc27e..08cdb83953 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -347,6 +347,9 @@ struct sPAPRMachineState {
 #define H_XIRR_X                0x2FC
 #define H_RANDOM                0x300
 #define H_SET_MODE              0x31C
+#define H_CLEAN_SLB             0x374
+#define H_INVALIDATE_PID        0x378
+#define H_REGISTER_PROC_TBL     0x37C
 #define H_SIGNAL_SYS_RESET      0x380
 #define MAX_HCALL_OPCODE        H_SIGNAL_SYS_RESET
 
-- 
2.11.0




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