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target-sparc: hypervisor mode takes over nucleus mode

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Accordinf to UA2005, 9.3.3 "Address Space Identifiers",

"In hyperprivileged mode, all instruction fetches and loads and stores with implicit
ASIs use a physical address, regardless of the value of TL".

Backports commit 9a10756d1204c3528e47892195349bf882069846 from qemu
This commit is contained in:
Artyom Tarasenko 2018-03-01 20:45:14 -05:00 committed by Lioncash
parent 204a4dc1d3
commit 8710ef1128
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GPG key ID: 4E3C3CC1031BA9C7
2 changed files with 7 additions and 3 deletions
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4
qemu/target-sparc/cpu.h
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@ -719,10 +719,10 @@ static inline int cpu_mmu_index(CPUSPARCState *env, bool ifetch)
? (env->lsu & IMMU_E) == 0 || (env->pstate & PS_RED) != 0
: (env->lsu & DMMU_E) == 0) {
return MMU_PHYS_IDX;
} else if (env->tl > 0) {
return MMU_NUCLEUS_IDX;
} else if (cpu_hypervisor_mode(env)) {
return MMU_HYPV_IDX;
} else if (env->tl > 0) {
return MMU_NUCLEUS_IDX;
} else if (cpu_supervisor_mode(env)) {
return MMU_KERNEL_IDX;
} else {

6
qemu/target-sparc/translate.c
View file

@ -2292,7 +2292,11 @@ static DisasASI get_asi(DisasContext *dc, int insn, TCGMemOp memop)
case ASI_TWINX_NL:
case ASI_NUCLEUS_QUAD_LDD:
case ASI_NUCLEUS_QUAD_LDD_L:
mem_idx = MMU_NUCLEUS_IDX;
if (hypervisor(dc)) {
mem_idx = MMU_HYPV_IDX;
} else {
mem_idx = MMU_NUCLEUS_IDX;
}
break;
case ASI_AIUP: /* As if user primary */
case ASI_AIUPL: /* As if user primary LE */