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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".

Suggested-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
This commit is contained in:
Artyom Tarasenko 2016-06-09 10:16:03 +02:00
parent 5c65df364a
commit 84f8f58766
No known key found for this signature in database
GPG Key ID: 3360C3F7411A125F
2 changed files with 4 additions and 5 deletions
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7
target/sparc/cpu.h
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@ -230,7 +230,7 @@ enum {
#if !defined(TARGET_SPARC64) #if !defined(TARGET_SPARC64)
#define NB_MMU_MODES 3 #define NB_MMU_MODES 3
#else #else
#define NB_MMU_MODES 7 #define NB_MMU_MODES 6
typedef struct trap_state { typedef struct trap_state {
uint64_t tpc; uint64_t tpc;
uint64_t tnpc; uint64_t tnpc;
@ -676,8 +676,7 @@ int cpu_sparc_signal_handler(int host_signum, void *pinfo, void *puc);
#define MMU_KERNEL_IDX 2 #define MMU_KERNEL_IDX 2
#define MMU_KERNEL_SECONDARY_IDX 3 #define MMU_KERNEL_SECONDARY_IDX 3
#define MMU_NUCLEUS_IDX 4 #define MMU_NUCLEUS_IDX 4
#define MMU_HYPV_IDX 5 #define MMU_PHYS_IDX 5
#define MMU_PHYS_IDX 6
#else #else
#define MMU_USER_IDX 0 #define MMU_USER_IDX 0
#define MMU_KERNEL_IDX 1 #define MMU_KERNEL_IDX 1
@ -723,7 +722,7 @@ static inline int cpu_mmu_index(CPUSPARCState *env, bool ifetch)
: (env->lsu & DMMU_E) == 0) { : (env->lsu & DMMU_E) == 0) {
return MMU_PHYS_IDX; return MMU_PHYS_IDX;
} else if (cpu_hypervisor_mode(env)) { } else if (cpu_hypervisor_mode(env)) {
return MMU_HYPV_IDX; return MMU_PHYS_IDX;
} else if (env->tl > 0) { } else if (env->tl > 0) {
return MMU_NUCLEUS_IDX; return MMU_NUCLEUS_IDX;
} else if (cpu_supervisor_mode(env)) { } else if (cpu_supervisor_mode(env)) {

2
target/sparc/translate.c
View File

@ -2143,7 +2143,7 @@ static DisasASI get_asi(DisasContext *dc, int insn, TCGMemOp memop)
case ASI_NUCLEUS_QUAD_LDD: case ASI_NUCLEUS_QUAD_LDD:
case ASI_NUCLEUS_QUAD_LDD_L: case ASI_NUCLEUS_QUAD_LDD_L:
if (hypervisor(dc)) { if (hypervisor(dc)) {
mem_idx = MMU_HYPV_IDX; mem_idx = MMU_PHYS_IDX;
} else { } else {
mem_idx = MMU_NUCLEUS_IDX; mem_idx = MMU_NUCLEUS_IDX;
} }