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Re: [Qemu-devel] [PATCH] lsi53c895a: check script ram address value
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From: |
li qiang |
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Subject: |
Re: [Qemu-devel] [PATCH] lsi53c895a: check script ram address value |
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Date: |
Tue, 6 Nov 2018 12:38:35 +0000 |
在 2018/11/6 20:28, Paolo Bonzini 写道:
> On 06/11/2018 13:27, li qiang wrote:
>> The addr is 0~0x1fff, but when addr is at the near the end ,for example
>> 0x1fffe, the add>>2 can be 2047
>>
>> and as script_ram is a uint32_t and so s->script_ram[addr >> 2] can read
>> out of the script_ram.
> How so? s->script_ram has size 2048, it's okay to access it at 2047.
Oh, right.
I'm confused by the script_ram, it's not byte array.
> Paolo