Re: [PATCH 11/21] ioport: insert event_tap_ioport() to ioport_write().

Yoshiaki Tamura
2010-11-28T12:00:21Z

2010/11/28 Michael S. Tsirkin <mst@redhat.com>:
> On Thu, Nov 25, 2010 at 03:06:50PM +0900, Yoshiaki Tamura wrote:
>> Record ioport event to replay it upon failover.
>>
>> Signed-off-by: Yoshiaki Tamura <tamura.yoshiaki@lab.ntt.co.jp>
>
> Interesting. This will have to be extended to support ioeventfd.
> Since each eventfd is really just a binary trigger
> it should be enough to read out the fd state.

Haven't thought about eventfd yet. Will try doing it in the next
spin.

Yoshi

>
>> ---
>>  ioport.c |    2 ++
>>  1 files changed, 2 insertions(+), 0 deletions(-)
>>
>> diff --git a/ioport.c b/ioport.c
>> index aa4188a..74aebf5 100644
>> --- a/ioport.c
>> +++ b/ioport.c
>> @@ -27,6 +27,7 @@
>>
>>  #include "ioport.h"
>>  #include "trace.h"
>> +#include "event-tap.h"
>>
>>  /***********************************************************/
>>  /* IO Port */
>> @@ -76,6 +77,7 @@ static void ioport_write(int index, uint32_t address, uint32_t data)
>>          default_ioport_writel
>>      };
>>      IOPortWriteFunc *func = ioport_write_table[index][address];
>> +    event_tap_ioport(index, address, data);
>>      if (!func)
>>          func = default_func[index];
>>      func(ioport_opaque[address], address, data);
>> --
>> 1.7.1.2
>>
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