From 7cd39ef234a7e2eea45a08cd15f920da5f1ba008 Mon Sep 17 00:00:00 2001
From: Artyom Tarasenko <atar4qemu@gmail.com>
Date: Thu, 9 Jun 2016 11:03:33 +0200
Subject: [PATCH] target-sparc: allow priveleged ASIs in hyperprivileged mode
Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
---
target/sparc/ldst_helper.c | 32 ++++++++++++++++++--------------
1 file changed, 18 insertions(+), 14 deletions(-)
diff --git a/target/sparc/ldst_helper.c b/target/sparc/ldst_helper.c
index 2e6439a6d9..ade4fb0541 100644
--- a/target/sparc/ldst_helper.c
+++ b/target/sparc/ldst_helper.c
@@ -293,6 +293,22 @@ static inline target_ulong asi_address_mask(CPUSPARCState *env,
}
return addr;
}
+
+#ifndef CONFIG_USER_ONLY
+static inline void do_check_asi(CPUSPARCState *env, int asi, uintptr_t ra)
+{
+ /* ASIs >= 0x80 are user mode.
+ * ASIs >= 0x30 are hyper mode (or super if hyper is not available).
+ * ASIs <= 0x2f are super mode.
+ */
+ if (asi < 0x80
+ && !cpu_hypervisor_mode(env)
+ && (!cpu_supervisor_mode(env)
+ || (asi >= 0x30 && cpu_has_hypervisor(env)))) {
+ cpu_raise_exception_ra(env, TT_PRIV_ACT, ra);
+ }
+}
+#endif /* !CONFIG_USER_ONLY */
#endif
static void do_check_align(CPUSPARCState *env, target_ulong addr,
@@ -1118,13 +1134,7 @@ uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr,
asi &= 0xff;
- if ((asi < 0x80 && (env->pstate & PS_PRIV) == 0)
- || (cpu_has_hypervisor(env)
- && asi >= 0x30 && asi < 0x80
- && !(env->hpstate & HS_PRIV))) {
- cpu_raise_exception_ra(env, TT_PRIV_ACT, GETPC());
- }
-
+ do_check_asi(env, asi, GETPC());
do_check_align(env, addr, size - 1, GETPC());
addr = asi_address_mask(env, asi, addr);
@@ -1423,13 +1433,7 @@ void helper_st_asi(CPUSPARCState *env, target_ulong addr, target_ulong val,
asi &= 0xff;
- if ((asi < 0x80 && (env->pstate & PS_PRIV) == 0)
- || (cpu_has_hypervisor(env)
- && asi >= 0x30 && asi < 0x80
- && !(env->hpstate & HS_PRIV))) {
- cpu_raise_exception_ra(env, TT_PRIV_ACT, GETPC());
- }
-
+ do_check_asi(env, asi, GETPC());
do_check_align(env, addr, size - 1, GETPC());
addr = asi_address_mask(env, asi, addr);
--
2.30.2