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authorArtyom Tarasenko <atar4qemu@gmail.com>2016-06-07 18:33:53 +0200
committerArtyom Tarasenko <atar4qemu@gmail.com>2017-01-18 22:03:44 +0100
commit6e040755f12eba34d2fa3d56b18de32d63fea631 (patch)
treee408d895b8312b5ef2f81a8f55513d9078383d91 /target
parent9a10756d1204c3528e47892195349bf882069846 (diff)
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target-sparc: implement UA2005 hypervisor traps
Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
Diffstat (limited to 'target')
-rw-r--r--target/sparc/cpu.h1
-rw-r--r--target/sparc/int64_helper.c37
-rw-r--r--target/sparc/win_helper.c6
3 files changed, 39 insertions, 5 deletions
diff --git a/target/sparc/cpu.h b/target/sparc/cpu.h
index 00fbb4e..f173dd6 100644
--- a/target/sparc/cpu.h
+++ b/target/sparc/cpu.h
@@ -79,6 +79,7 @@
#define TT_FILL 0xc0
#define TT_WOTHER (1 << 5)
#define TT_TRAP 0x100
+#define TT_HTRAP 0x180
#endif
#define PSR_NEG_SHIFT 23
diff --git a/target/sparc/int64_helper.c b/target/sparc/int64_helper.c
index 29360fa..8300eb4 100644
--- a/target/sparc/int64_helper.c
+++ b/target/sparc/int64_helper.c
@@ -78,8 +78,10 @@ void sparc_cpu_do_interrupt(CPUState *cs)
static int count;
const char *name;
- if (intno < 0 || intno >= 0x180) {
+ if (intno < 0 || intno >= 0x1ff) {
name = "Unknown";
+ } else if (intno >= 0x180) {
+ name = "Hyperprivileged Trap Instruction";
} else if (intno >= 0x100) {
name = "Trap Instruction";
} else if (intno >= 0xc0) {
@@ -135,16 +137,36 @@ void sparc_cpu_do_interrupt(CPUState *cs)
tsptr->tnpc = env->npc;
tsptr->tt = intno;
+ if (cpu_has_hypervisor(env)) {
+ env->htstate[env->tl] = env->hpstate;
+ /* XXX OpenSPARC T1 - UltraSPARC T3 have MAXPTL=2
+ but this may change in the future */
+ if (env->tl > 2) {
+ env->hpstate |= HS_PRIV;
+ }
+ }
+
switch (intno) {
case TT_IVEC:
- cpu_change_pstate(env, PS_PEF | PS_PRIV | PS_IG);
+ if (!cpu_has_hypervisor(env)) {
+ cpu_change_pstate(env, PS_PEF | PS_PRIV | PS_IG);
+ }
break;
case TT_TFAULT:
case TT_DFAULT:
case TT_TMISS ... TT_TMISS + 3:
case TT_DMISS ... TT_DMISS + 3:
case TT_DPROT ... TT_DPROT + 3:
- cpu_change_pstate(env, PS_PEF | PS_PRIV | PS_MG);
+ if (cpu_has_hypervisor(env)) {
+ env->hpstate |= HS_PRIV;
+ env->pstate = PS_PEF | PS_PRIV;
+ } else {
+ cpu_change_pstate(env, PS_PEF | PS_PRIV | PS_MG);
+ }
+ break;
+ case TT_INSN_REAL_TRANSLATION_MISS ... TT_DATA_REAL_TRANSLATION_MISS:
+ case TT_HTRAP ... TT_HTRAP + 127:
+ env->hpstate |= HS_PRIV;
break;
default:
cpu_change_pstate(env, PS_PEF | PS_PRIV | PS_AG);
@@ -158,8 +180,13 @@ void sparc_cpu_do_interrupt(CPUState *cs)
} else if ((intno & 0x1c0) == TT_FILL) {
cpu_set_cwp(env, cpu_cwp_inc(env, env->cwp + 1));
}
- env->pc = env->tbr & ~0x7fffULL;
- env->pc |= ((env->tl > 1) ? 1 << 14 : 0) | (intno << 5);
+
+ if (cpu_hypervisor_mode(env)) {
+ env->pc = (env->htba & ~0x3fffULL) | (intno << 5);
+ } else {
+ env->pc = env->tbr & ~0x7fffULL;
+ env->pc |= ((env->tl > 1) ? 1 << 14 : 0) | (intno << 5);
+ }
env->npc = env->pc + 4;
cs->exception_index = -1;
}
diff --git a/target/sparc/win_helper.c b/target/sparc/win_helper.c
index 2d5b546..45ee4e6 100644
--- a/target/sparc/win_helper.c
+++ b/target/sparc/win_helper.c
@@ -366,6 +366,9 @@ void helper_done(CPUSPARCState *env)
env->asi = (tsptr->tstate >> 24) & 0xff;
cpu_change_pstate(env, (tsptr->tstate >> 8) & 0xf3f);
cpu_put_cwp64(env, tsptr->tstate & 0xff);
+ if (cpu_has_hypervisor(env)) {
+ env->hpstate = env->htstate[env->tl];
+ }
env->tl--;
trace_win_helper_done(env->tl);
@@ -387,6 +390,9 @@ void helper_retry(CPUSPARCState *env)
env->asi = (tsptr->tstate >> 24) & 0xff;
cpu_change_pstate(env, (tsptr->tstate >> 8) & 0xf3f);
cpu_put_cwp64(env, tsptr->tstate & 0xff);
+ if (cpu_has_hypervisor(env)) {
+ env->hpstate = env->htstate[env->tl];
+ }
env->tl--;
trace_win_helper_retry(env->tl);