[Qemu-devel] [PATCH v3 18/24] target-ppc: Add POWER8's FSCR SPR

[Alexey Kardashevskiy]

This adds an FSCR (Facility Status and Control Register) SPR.

Signed-off-by: Alexey Kardashevskiy <address@hidden>
---
 target-ppc/cpu.h            | 1 +
 target-ppc/translate_init.c | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index d0238e6..c2a84fd 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -1272,6 +1272,7 @@ static inline int cpu_mmu_index (CPUPPCState *env)
 #define SPR_CTRL              (0x098)
 #define SPR_MPC_CMPE          (0x098)
 #define SPR_MPC_CMPF          (0x099)
+#define SPR_FSCR              (0x099)
 #define SPR_MPC_CMPG          (0x09A)
 #define SPR_MPC_CMPH          (0x09B)
 #define SPR_MPC_LCTRL1        (0x09C)
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 6bcb41c..0682739 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -7598,6 +7598,14 @@ static void gen_spr_power8_branch_control(CPUPPCState 
*env)
                  0x00000000);
 }
 
+static void gen_spr_power8_common(CPUPPCState *env)
+{
+    spr_register_kvm(env, SPR_FSCR, "FSCR",
+                     SPR_NOACCESS, SPR_NOACCESS,
+                     &spr_read_generic, &spr_write_generic,
+                     KVM_REG_PPC_FSCR, 0x00000000);
+}
+
 static void init_proc_POWER(CPUPPCState *env, int version)
 {
     gen_spr_ne_601(env);
@@ -7640,6 +7648,7 @@ static void init_proc_POWER(CPUPPCState *env, int version)
     if (version >= BOOK3S_CPU_POWER8) {
         gen_spr_power8_branch_control(env);
         gen_spr_power8_pmu(env);
+        gen_spr_power8_common(env);
     }
 #if !defined(CONFIG_USER_ONLY)
     switch (version) {
-- 
1.8.4.rc4