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 08730b6..4ad2c94 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -299,6 +299,12 @@ 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
+}
+
/* HDECR */
static void spr_read_hdecr (DisasContext *ctx, int gprn, int sprn)
{
@@ -8148,10 +8154,11 @@ 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)
--
2.5.0
