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author | Peter Maydell <peter.maydell@linaro.org> | 2018-12-10 17:33:50 +0000 |
---|---|---|
committer | Richard Henderson <richard.henderson@linaro.org> | 2019-01-08 09:04:30 +1000 |
commit | b7ed683a8d53b68b5b2f376789b20d2fe91d544b (patch) | |
tree | 371f60c2dac27417eccf2adb34ffca03a8a296db | |
parent | c102d9471f8f02d9fbea72ec4505d7089173f470 (diff) | |
download | qemu-b7ed683a8d53b68b5b2f376789b20d2fe91d544b.zip qemu-b7ed683a8d53b68b5b2f376789b20d2fe91d544b.tar.gz qemu-b7ed683a8d53b68b5b2f376789b20d2fe91d544b.tar.bz2 |
hw/alpha/typhoon: Stop calling cpu_unassigned_access()
The typhoon MemoryRegionOps callbacks directly call
cpu_unassigned_access(), presumably as the old-fashioned way
to provoke a CPU exception. This won't work since commit
6ad4d7eed05a1e235 when we switched Alpha over to the
transaction_failed hook API, because now cpu_unassigned_access()
is a no-op for Alpha.
Make the MemoryRegionOps callbacks use the read_with_attrs
and write_with_attrs hooks, so they can signal a failure
that should cause a CPU exception by returning MEMTX_ERROR.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20181210173350.13073-1-peter.maydell@linaro.org>
Tested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
-rw-r--r-- | hw/alpha/typhoon.c | 47 |
1 files changed, 27 insertions, 20 deletions
diff --git a/hw/alpha/typhoon.c b/hw/alpha/typhoon.c index 8004afe..cbacea5 100644 --- a/hw/alpha/typhoon.c +++ b/hw/alpha/typhoon.c @@ -75,7 +75,9 @@ static void cpu_irq_change(AlphaCPU *cpu, uint64_t req) } } -static uint64_t cchip_read(void *opaque, hwaddr addr, unsigned size) +static MemTxResult cchip_read(void *opaque, hwaddr addr, + uint64_t *data, unsigned size, + MemTxAttrs attrs) { CPUState *cpu = current_cpu; TyphoonState *s = opaque; @@ -196,11 +198,11 @@ static uint64_t cchip_read(void *opaque, hwaddr addr, unsigned size) break; default: - cpu_unassigned_access(cpu, addr, false, false, 0, size); - return -1; + return MEMTX_ERROR; } - return ret; + *data = ret; + return MEMTX_OK; } static uint64_t dchip_read(void *opaque, hwaddr addr, unsigned size) @@ -209,7 +211,8 @@ static uint64_t dchip_read(void *opaque, hwaddr addr, unsigned size) return 0; } -static uint64_t pchip_read(void *opaque, hwaddr addr, unsigned size) +static MemTxResult pchip_read(void *opaque, hwaddr addr, uint64_t *data, + unsigned size, MemTxAttrs attrs) { TyphoonState *s = opaque; uint64_t ret = 0; @@ -294,15 +297,16 @@ static uint64_t pchip_read(void *opaque, hwaddr addr, unsigned size) break; default: - cpu_unassigned_access(current_cpu, addr, false, false, 0, size); - return -1; + return MEMTX_ERROR; } - return ret; + *data = ret; + return MEMTX_OK; } -static void cchip_write(void *opaque, hwaddr addr, - uint64_t val, unsigned size) +static MemTxResult cchip_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size, + MemTxAttrs attrs) { TyphoonState *s = opaque; uint64_t oldval, newval; @@ -446,9 +450,10 @@ static void cchip_write(void *opaque, hwaddr addr, break; default: - cpu_unassigned_access(current_cpu, addr, true, false, 0, size); - return; + return MEMTX_ERROR; } + + return MEMTX_OK; } static void dchip_write(void *opaque, hwaddr addr, @@ -457,8 +462,9 @@ static void dchip_write(void *opaque, hwaddr addr, /* Skip this. It's all related to DRAM timing and setup. */ } -static void pchip_write(void *opaque, hwaddr addr, - uint64_t val, unsigned size) +static MemTxResult pchip_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size, + MemTxAttrs attrs) { TyphoonState *s = opaque; uint64_t oldval; @@ -553,14 +559,15 @@ static void pchip_write(void *opaque, hwaddr addr, break; default: - cpu_unassigned_access(current_cpu, addr, true, false, 0, size); - return; + return MEMTX_ERROR; } + + return MEMTX_OK; } static const MemoryRegionOps cchip_ops = { - .read = cchip_read, - .write = cchip_write, + .read_with_attrs = cchip_read, + .write_with_attrs = cchip_write, .endianness = DEVICE_LITTLE_ENDIAN, .valid = { .min_access_size = 8, @@ -587,8 +594,8 @@ static const MemoryRegionOps dchip_ops = { }; static const MemoryRegionOps pchip_ops = { - .read = pchip_read, - .write = pchip_write, + .read_with_attrs = pchip_read, + .write_with_attrs = pchip_write, .endianness = DEVICE_LITTLE_ENDIAN, .valid = { .min_access_size = 8, |