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Re: [Qemu-devel] [PATCH] exec: avoid tcg_commit when kvm_enabled


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH] exec: avoid tcg_commit when kvm_enabled
Date: Wed, 04 Sep 2013 08:23:34 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130805 Thunderbird/17.0.8

Il 04/09/2013 03:07, Li Guang ha scritto:
> 在 2013-09-03二的 10:39 +0200,Andreas Färber写道:
>> Am 03.09.2013 08:59, schrieb liguang:
>>> Signed-off-by: liguang <address@hidden>
>>> ---
>>>  exec.c |    4 +++-
>>>  1 files changed, 3 insertions(+), 1 deletions(-)
>>>
>>> diff --git a/exec.c b/exec.c
>>> index 3ca9381..4509daa 100644
>>> --- a/exec.c
>>> +++ b/exec.c
>>> @@ -1824,7 +1824,9 @@ static void memory_map_init(void)
>>>      address_space_init(&address_space_io, system_io, "I/O");
>>>  
>>>      memory_listener_register(&core_memory_listener, &address_space_memory);
>>> -    memory_listener_register(&tcg_memory_listener, &address_space_memory);
>>> +    if (!kvm_enabled()) {
>>
>> if (tcg_enabled())? I'm guessing Xen and QTest don't need it either?
>>
> 
> can't assure that currently, 
> anybody can help to assure whether Xen & QTest need tcg_commit?

No, they don't.

Paolo

>>
>>> +        memory_listener_register(&tcg_memory_listener, 
>>> &address_space_memory);
>>> +    }
>>>  }
>>>  
>>>  MemoryRegion *get_system_memory(void)
>>
> 




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