From: Benjamin Herrenschmidt <b...@kernel.crashing.org>
The Hypervisor can write it. We don't handle that properly yet but
at least let's not blow up when it is written.
Signed-off-by: Benjamin Herrenschmidt <b...@kernel.crashing.org>
---
target-ppc/translate_init.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 2fac6ea58698..28a9c2e73156 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -300,6 +300,12 @@ static void spr_write_purr(DisasContext *ctx, int gprn,
int sprn)
/* Temporary placeholder */
}
+__attribute__ ((unused))
+static void spr_write_vtb(DisasContext *ctx, int gprn, int sprn)
+{
+ /* Temporary placeholder */
+}
+
#endif
#endif
@@ -8089,10 +8095,11 @@ static void gen_spr_power8_ebb(CPUPPCState *env)
/* Virtual Time Base */
static void gen_spr_vtb(CPUPPCState *env)
{
- spr_register(env, SPR_VTB, "VTB",
- SPR_NOACCESS, SPR_NOACCESS,
- &spr_read_tbl, SPR_NOACCESS,
- 0x00000000);
+ spr_register_hv(env, SPR_VTB, "VTB",
+ SPR_NOACCESS, SPR_NOACCESS,
+ &spr_read_tbl, SPR_NOACCESS,
+ &spr_read_tbl, spr_write_vtb,
+ 0x00000000);
}
static void gen_spr_power8_fscr(CPUPPCState *env)
--
2.1.4
