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| author | Richard Henderson <richard.henderson@linaro.org> | 2021-02-27 12:44:00 -0800 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-05-26 15:33:59 -0700 |
| commit | 3803b6b4273afd50021c39a8e34ca706aeadb684 (patch) | |
| tree | c953b24f4dd1409f1a395481f7174f2c0b9eca34 /hw/mips | |
| parent | 6bc0d6a04733cb39d2d2bf3380a857709113242f (diff) | |
| download | qemu-3803b6b4273afd50021c39a8e34ca706aeadb684.zip qemu-3803b6b4273afd50021c39a8e34ca706aeadb684.tar.gz qemu-3803b6b4273afd50021c39a8e34ca706aeadb684.tar.bz2 | |
target/mips: Fold jazz behaviour into mips_cpu_do_transaction_failed
Add a flag to MIPSCPUClass in order to avoid needing to
replace mips_tcg_ops.do_transaction_failed.
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20210227232519.222663-2-richard.henderson@linaro.org>
Diffstat (limited to 'hw/mips')
| -rw-r--r-- | hw/mips/jazz.c | 35 |
1 files changed, 3 insertions, 32 deletions
diff --git a/hw/mips/jazz.c b/hw/mips/jazz.c index dba2088..1e1cf81 100644 --- a/hw/mips/jazz.c +++ b/hw/mips/jazz.c @@ -119,30 +119,6 @@ static const MemoryRegionOps dma_dummy_ops = { #define MAGNUM_BIOS_SIZE \ (BIOS_SIZE < MAGNUM_BIOS_SIZE_MAX ? BIOS_SIZE : MAGNUM_BIOS_SIZE_MAX) -#if defined(CONFIG_TCG) && !defined(CONFIG_USER_ONLY) -static void (*real_do_transaction_failed)(CPUState *cpu, hwaddr physaddr, - vaddr addr, unsigned size, - MMUAccessType access_type, - int mmu_idx, MemTxAttrs attrs, - MemTxResult response, - uintptr_t retaddr); - -static void mips_jazz_do_transaction_failed(CPUState *cs, hwaddr physaddr, - vaddr addr, unsigned size, - MMUAccessType access_type, - int mmu_idx, MemTxAttrs attrs, - MemTxResult response, - uintptr_t retaddr) -{ - if (access_type != MMU_INST_FETCH) { - /* ignore invalid access (ie do not raise exception) */ - return; - } - (*real_do_transaction_failed)(cs, physaddr, addr, size, access_type, - mmu_idx, attrs, response, retaddr); -} -#endif /* CONFIG_TCG && !CONFIG_USER_ONLY */ - static void mips_jazz_init(MachineState *machine, enum jazz_model_e jazz_model) { @@ -151,7 +127,7 @@ static void mips_jazz_init(MachineState *machine, int bios_size, n; Clock *cpuclk; MIPSCPU *cpu; - CPUClass *cc; + MIPSCPUClass *mcc; CPUMIPSState *env; qemu_irq *i8259; rc4030_dma *dmas; @@ -198,8 +174,6 @@ static void mips_jazz_init(MachineState *machine, * However, we can't simply add a global memory region to catch * everything, as this would make all accesses including instruction * accesses be ignored and not raise exceptions. - * So instead we hijack the do_transaction_failed method on the CPU, and - * do not raise exceptions for data access. * * NOTE: this behaviour of raising exceptions for bad instruction * fetches but not bad data accesses was added in commit 54e755588cf1e9 @@ -209,11 +183,8 @@ static void mips_jazz_init(MachineState *machine, * we could replace this hijacking of CPU methods with a simple global * memory region that catches all memory accesses, as we do on Malta. */ - cc = CPU_GET_CLASS(cpu); -#if defined(CONFIG_TCG) && !defined(CONFIG_USER_ONLY) - real_do_transaction_failed = cc->tcg_ops->do_transaction_failed; - cc->tcg_ops->do_transaction_failed = mips_jazz_do_transaction_failed; -#endif /* CONFIG_TCG && !CONFIG_USER_ONLY */ + mcc = MIPS_CPU_GET_CLASS(cpu); + mcc->no_data_aborts = true; /* allocate RAM */ memory_region_add_subregion(address_space, 0, machine->ram); |