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target-sparc: use direct address translation in hyperprivileged mode

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Please note that QEMU doesn't impelement Real->Physical address
translation. The "Real Address" is always the "Physical Address".

Backports commit 84f8f5876628963e67f66edde8a71208c4274ac8 from qemu
This commit is contained in:
Artyom Tarasenko 2018-03-01 21:13:34 -05:00 committed by Lioncash
parent f07be0ac3f
commit 3a5a9dd6cd
No known key found for this signature in database
GPG key ID: 4E3C3CC1031BA9C7
2 changed files with 4 additions and 5 deletions
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7
qemu/target-sparc/cpu.h
View file

@ -226,7 +226,7 @@ enum {
#if !defined(TARGET_SPARC64)
#define NB_MMU_MODES 3
#else
#define NB_MMU_MODES 7
#define NB_MMU_MODES 6
typedef struct trap_state {
uint64_t tpc;
uint64_t tnpc;
@ -676,8 +676,7 @@ static inline CPUSPARCState *cpu_init(struct uc_struct *uc, const char *cpu_mode
#define MMU_KERNEL_IDX 2
#define MMU_KERNEL_SECONDARY_IDX 3
#define MMU_NUCLEUS_IDX 4
#define MMU_HYPV_IDX 5
#define MMU_PHYS_IDX 6
#define MMU_PHYS_IDX 5
#else
#define MMU_USER_IDX 0
#define MMU_KERNEL_IDX 1
@ -723,7 +722,7 @@ static inline int cpu_mmu_index(CPUSPARCState *env, bool ifetch)
: (env->lsu & DMMU_E) == 0) {
return MMU_PHYS_IDX;
} else if (cpu_hypervisor_mode(env)) {
return MMU_HYPV_IDX;
return MMU_PHYS_IDX;
} else if (env->tl > 0) {
return MMU_NUCLEUS_IDX;
} else if (cpu_supervisor_mode(env)) {

2
qemu/target-sparc/translate.c
View file

@ -2293,7 +2293,7 @@ static DisasASI get_asi(DisasContext *dc, int insn, TCGMemOp memop)
case ASI_NUCLEUS_QUAD_LDD:
case ASI_NUCLEUS_QUAD_LDD_L:
if (hypervisor(dc)) {
mem_idx = MMU_HYPV_IDX;
mem_idx = MMU_PHYS_IDX;
} else {
mem_idx = MMU_NUCLEUS_IDX;
}