diff mbox series

[24/26] target/ppc: Implement LDBAR, TTR SPRs

Message ID 20240118150644.177371-25-npiggin@gmail.com
State New
Headers show
Series target/ppc: TCG improvements and fixes | expand

Commit Message

Nicholas Piggin Jan. 18, 2024, 3:06 p.m. UTC 
LDBAR, TTR are a Power-specific SPRs. These simple implementations
are enough for IBM proprietary firmware for now.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 target/ppc/cpu.h      |  2 ++
 target/ppc/cpu_init.c | 10 ++++++++++
 2 files changed, 12 insertions(+)
diff mbox series

Patch

diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index 8397ddaf18..b6a955b9b7 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -2088,6 +2088,7 @@  void ppc_compat_add_property(Object *obj, const char *name,
 #define SPR_DEXCR             (0x33C)
 #define SPR_IC                (0x350)
 #define SPR_VTB               (0x351)
+#define SPR_LDBAR             (0x352)
 #define SPR_MMCRC             (0x353)
 #define SPR_PSSCR             (0x357)
 #define SPR_440_INV0          (0x370)
@@ -2134,6 +2135,7 @@  void ppc_compat_add_property(Object *obj, const char *name,
 #define SPR_440_IVLIM         (0x399)
 #define SPR_TSCR              (0x399)
 #define SPR_750_DMAU          (0x39A)
+#define SPR_POWER_TTR         (0x39A)
 #define SPR_750_DMAL          (0x39B)
 #define SPR_440_RSTCFG        (0x39B)
 #define SPR_BOOKE_DCDBTRL     (0x39C)
diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 0a42e14338..31d535d501 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -5695,6 +5695,16 @@  static void register_power_common_book4_sprs(CPUPPCState *env)
                  &spr_access_nop, &spr_write_generic,
                  &spr_access_nop, &spr_write_generic,
                  0x00000000);
+    spr_register_hv(env, SPR_LDBAR, "LDBAR",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, &spr_core_lpar_write_generic,
+                 0x00000000);
+    spr_register_hv(env, SPR_POWER_TTR, "TTR",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, &spr_core_write_generic,
+                 0x00000000);
 #endif
 }