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Re: [Qemu-devel] [PATCH 15/29] target-sparc: allow priveleged ASIs in hy


From: Richard Henderson
Subject: Re: [Qemu-devel] [PATCH 15/29] target-sparc: allow priveleged ASIs in hyperprivileged mode
Date: Tue, 11 Oct 2016 08:57:11 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0

On 10/01/2016 05:05 AM, Artyom Tarasenko wrote:
@@ -1295,10 +1295,9 @@ 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))) {
+    if (((!cpu_hypervisor_mode(env)) && asi < 0x80)
+        && (((env->pstate & PS_PRIV) == 0)
+        || (cpu_has_hypervisor(env) && asi >= 0x30))) {
         helper_raise_exception(env, TT_PRIV_ACT);
     }

You need the same change in get_asi.

And perhaps pull out this check as do_check_asi so that we don't need to replicate it. On top of my sparc tree this becomes the following.


r~

Attachment: 0015-target-sparc-allow-priveleged-ASIs-in-hyperprivilege.patch
Description: Text Data


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