diff options
| author | Artyom Tarasenko <atar4qemu@gmail.com> | 2012-01-23 14:31:21 +0100 |
|---|---|---|
| committer | Artyom Tarasenko <atar4qemu@gmail.com> | 2017-01-18 22:03:44 +0100 |
| commit | 1ceca928538a3633b74a7dc718a05ce6767f2f76 (patch) | |
| tree | 6408fa57917fcaceba7e49ddefaa2b04e1243d38 /target | |
| parent | 23eb9e6b6d5315171cc15969bbc755f258004df0 (diff) | |
target-sparc: ignore MMU-faults if MMU is disabled in hypervisor mode
while IMMU/DMMU is disabled
- ignore MMU-faults in hypervisorv mode or if CPU doesn't have hypervisor
- signal TT_INSN_REAL_TRANSLATION_MISS/TT_DATA_REAL_TRANSLATION_MISS otherwise
Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
Diffstat (limited to 'target')
| -rw-r--r-- | target/sparc/cpu.h | 2 | ||||
| -rw-r--r-- | target/sparc/ldst_helper.c | 15 |
2 files changed, 15 insertions, 2 deletions
diff --git a/target/sparc/cpu.h b/target/sparc/cpu.h index 601c018a05..e815a1949b 100644 --- a/target/sparc/cpu.h +++ b/target/sparc/cpu.h @@ -68,6 +68,8 @@ #define TT_DATA_ACCESS 0x32 #define TT_UNALIGNED 0x34 #define TT_PRIV_ACT 0x37 +#define TT_INSN_REAL_TRANSLATION_MISS 0x3e +#define TT_DATA_REAL_TRANSLATION_MISS 0x3f #define TT_EXTINT 0x40 #define TT_IVEC 0x60 #define TT_TMISS 0x64 diff --git a/target/sparc/ldst_helper.c b/target/sparc/ldst_helper.c index a0171f73f7..e479efd23d 100644 --- a/target/sparc/ldst_helper.c +++ b/target/sparc/ldst_helper.c @@ -1664,14 +1664,25 @@ void sparc_cpu_unassigned_access(CPUState *cs, hwaddr addr, { SPARCCPU *cpu = SPARC_CPU(cs); CPUSPARCState *env = &cpu->env; - int tt = is_exec ? TT_CODE_ACCESS : TT_DATA_ACCESS; #ifdef DEBUG_UNASSIGNED printf("Unassigned mem access to " TARGET_FMT_plx " from " TARGET_FMT_lx "\n", addr, env->pc); #endif - cpu_raise_exception_ra(env, tt, GETPC()); + if (is_exec) { /* XXX has_hypervisor */ + if (env->lsu & (IMMU_E)) { + cpu_raise_exception_ra(env, TT_CODE_ACCESS, GETPC()); + } else if (cpu_has_hypervisor(env) && !(env->hpstate & HS_PRIV)) { + cpu_raise_exception_ra(env, TT_INSN_REAL_TRANSLATION_MISS, GETPC()); + } + } else { + if (env->lsu & (DMMU_E)) { + cpu_raise_exception_ra(env, TT_DATA_ACCESS, GETPC()); + } else if (cpu_has_hypervisor(env) && !(env->hpstate & HS_PRIV)) { + cpu_raise_exception_ra(env, TT_DATA_REAL_TRANSLATION_MISS, GETPC()); + } + } } #endif #endif |