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Replace is_user variable with mmu_idx in softmmu core,

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allowing support of more than 2 mmu access modes.
Add backward compatibility is_user variable in targets code when needed.
Implement per target cpu_mmu_index function, avoiding duplicated code
  and #ifdef TARGET_xxx in softmmu core functions.
Implement per target mmu modes definitions. As an example, add PowerPC
  hypervisor mode definition and Alpha executive and kernel modes definitions.
Optimize PowerPC case, precomputing mmu_idx when MSR register changes
  and using the same definition in code translation code.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3384 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
j_mayer 2007-10-14 07:07:08 +00:00
parent d0f48074db
commit 6ebbf39000
48 changed files with 362 additions and 275 deletions
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11
target-sparc/cpu.h
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@ -166,6 +166,8 @@
typedef struct sparc_def_t sparc_def_t;
#define NB_MMU_MODES 2
typedef struct CPUSPARCState {
target_ulong gregs[8]; /* general registers */
target_ulong *regwptr; /* pointer to current register window */
@ -317,6 +319,15 @@ void cpu_check_irqs(CPUSPARCState *env);
#define cpu_signal_handler cpu_sparc_signal_handler
#define cpu_list sparc_cpu_list
/* MMU modes definitions */
#define MMU_MODE0_SUFFIX _kernel
#define MMU_MODE1_SUFFIX _user
#define MMU_USER_IDX 1
static inline int cpu_mmu_index (CPUState *env)
{
return env->psrs == 0 ? 1 : 0;
}
#include "cpu-all.h"
#endif