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| author | Igor Kovalenko <igor.v.kovalenko@gmail.com> | 2009-07-12 07:41:42 +0000 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2009-07-12 07:41:42 +0000 |
| commit | e8807b14cc8c12c0e14c08fa396d9da043b48209 (patch) | |
| tree | e04623152512df9b5a2e4224403d068dd334f6c3 /target-sparc | |
| parent | 616cbc78a50c638b94cc4756a565f11bb10dbfeb (diff) | |
| download | qemu-e8807b14cc8c12c0e14c08fa396d9da043b48209.tar.gz | |
sparc64: mmu bypass mode correction
This Implement physical address truncation in mmu bypass mode.
IMMU bypass is also active when cpu enters RED_STATE
Signed-off-by: igor.v.kovalenko@gmail.com
--
Kind regards,
Igor V. Kovalenko
Diffstat (limited to 'target-sparc')
| -rw-r--r-- | target-sparc/helper.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/target-sparc/helper.c b/target-sparc/helper.c index 2f41418c85..cd067df1df 100644 --- a/target-sparc/helper.c +++ b/target-sparc/helper.c @@ -369,6 +369,13 @@ void dump_mmu(CPUState *env) #endif /* DEBUG_MMU */ #else /* !TARGET_SPARC64 */ + +// 41 bit physical address space +static inline target_phys_addr_t ultrasparc_truncate_physical(uint64_t x) +{ + return x & 0x1ffffffffffULL; +} + /* * UltraSparc IIi I/DMMUs */ @@ -380,7 +387,7 @@ static int get_physical_address_data(CPUState *env, unsigned int i; if ((env->lsu & DMMU_E) == 0) { /* DMMU disabled */ - *physical = address; + *physical = ultrasparc_truncate_physical(address); *prot = PAGE_READ | PAGE_WRITE; return 0; } @@ -442,8 +449,9 @@ static int get_physical_address_code(CPUState *env, target_ulong mask; unsigned int i; - if ((env->lsu & IMMU_E) == 0) { /* IMMU disabled */ - *physical = address; + if ((env->lsu & IMMU_E) == 0 || (env->pstate & PS_RED) != 0) { + /* IMMU disabled */ + *physical = ultrasparc_truncate_physical(address); *prot = PAGE_EXEC; return 0; } |