Zhi Yong Wu writes:
> 2011/9/26 Lluís Vilanova :
>> The testing system is a Linux 2.6.32, with this:
>>
>> int fd = open("/sys/devices/pci:00/00:00:004.00/resource0", O_RDWR);
>> void *addr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
>> printf("-> %ld\n", *(uint64_t*)ad
Stefan Hajnoczi writes:
> On Mon, Sep 26, 2011 at 08:03:12PM +0200, Lluís Vilanova wrote:
>> #if 1 /* KVM doesn't like it */
>> s-> data_ptr = g_malloc(s->size);
>> memory_region_init_ram_ptr(&s->data, &s->dev.qdev, "backdoor.data",
>>s
On Mon, Sep 26, 2011 at 08:03:12PM +0200, Lluís Vilanova wrote:
> #if 1 /* KVM doesn't like it */
> s->data_ptr = g_malloc(s->size);
> memory_region_init_ram_ptr(&s->data, &s->dev.qdev, "backdoor.data",
>s->size, s->data_ptr)
On 09/26/2011 03:54 PM, Lluís Vilanova wrote:
It is the second bar that generates the problems with KVM:
s->data_ptr = g_malloc(s->size);
memory_region_init_ram_ptr(&s->data,&s->dev.qdev, "backdoor.data",
s->size, s->data_ptr);
pci_register_bar(&s->
2011/9/26 Lluís Vilanova :
> Hi. I started writing a trivial device on QEMU that should get called on every
> read and write on the memory it provides.
>
> The problems are that:
>
> 1) Cannot start QEMU with KVM when the device is enabled:
> kvm_set_phys_mem: error registering slot: Invalid
2011/9/26 Lluís Vilanova :
> Stefan Hajnoczi writes:
>
>> On Mon, Sep 26, 2011 at 12:23:21AM +0200, Lluís Vilanova wrote:
>>> 1) Cannot start QEMU with KVM when the device is enabled:
>>> kvm_set_phys_mem: error registering slot: Invalid argument
>>>
>>> 2) The driver never gets called on a read/wr
Lluís Vilanova writes:
> Stefan Hajnoczi writes:
>> On Mon, Sep 26, 2011 at 12:23:21AM +0200, Lluís Vilanova wrote:
>>> 1) Cannot start QEMU with KVM when the device is enabled:
>>> kvm_set_phys_mem: error registering slot: Invalid argument
>>>
>>> 2) The driver never gets called on a read/write
Stefan Hajnoczi writes:
> On Mon, Sep 26, 2011 at 12:23:21AM +0200, Lluís Vilanova wrote:
>> 1) Cannot start QEMU with KVM when the device is enabled:
>> kvm_set_phys_mem: error registering slot: Invalid argument
>>
>> 2) The driver never gets called on a read/write to its memory
> If I add #inc
On Mon, Sep 26, 2011 at 12:23:21AM +0200, Lluís Vilanova wrote:
> 1) Cannot start QEMU with KVM when the device is enabled:
>kvm_set_phys_mem: error registering slot: Invalid argument
>
> 2) The driver never gets called on a read/write to its memory
If I add #include "pci.h" at the top of
Hi. I started writing a trivial device on QEMU that should get called on every
read and write on the memory it provides.
The problems are that:
1) Cannot start QEMU with KVM when the device is enabled:
kvm_set_phys_mem: error registering slot: Invalid argument
2) The driver never gets cal
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