Re: [PATCH v3 2/2] hw/vfio: Add nr of dirty pages to vfio_get_dirty_bitmap tracepoint

[Joao Martins <joao.m.martins@oracle.com>]

On 30/05/2023 09:39, Avihai Horon wrote:
> 
> On 29/05/2023 15:11, Joao Martins wrote:
>> External email: Use caution opening links or attachments
>>
> Just a nit, maybe subject should be "vfio/common: Add number of dirty pages to
> vfio_get_dirty_bitmap tracepoint".
> 

Fixed

>> Include the number of dirty pages on the vfio_get_dirty_bitmap tracepoint.
>> These are fetched from the newly added return value in
>> cpu_physical_memory_set_lebitmap().
> 
> s/cpu_physical_memory_set_lebitmap()/cpu_physical_memory_set_dirty_lebitmap()
>
Fixed

>>
>> Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
>> ---
>>   hw/vfio/common.c     | 7 ++++---
>>   hw/vfio/trace-events | 2 +-
>>   2 files changed, 5 insertions(+), 4 deletions(-)
>>
>> diff --git a/hw/vfio/common.c b/hw/vfio/common.c
>> index 78358ede2764..fa8fd949b1cf 100644
>> --- a/hw/vfio/common.c
>> +++ b/hw/vfio/common.c
>> @@ -1747,6 +1747,7 @@ static int vfio_get_dirty_bitmap(VFIOContainer
>> *container, uint64_t iova,
>>   {
>>       bool all_device_dirty_tracking =
>>           vfio_devices_all_device_dirty_tracking(container);
>> +    uint64_t dirty_pages;
>>       VFIOBitmap vbmap;
>>       int ret;
>>
>> @@ -1772,11 +1773,11 @@ static int vfio_get_dirty_bitmap(VFIOContainer
>> *container, uint64_t iova,
>>           goto out;
>>       }
>>
>> -    cpu_physical_memory_set_dirty_lebitmap(vbmap.bitmap, ram_addr,
>> -                                           vbmap.pages);
>> +    dirty_pages = cpu_physical_memory_set_dirty_lebitmap(vbmap.bitmap, ram_addr,
>> +                                                         vbmap.pages);
>>
>>       trace_vfio_get_dirty_bitmap(container->fd, iova, size, vbmap.size,
>> -                                ram_addr);
>> +                                ram_addr, dirty_pages);
>>   out:
>>       g_free(vbmap.bitmap);
>>
>> diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events
>> index 646e42fd27f9..cfb60c354de3 100644
>> --- a/hw/vfio/trace-events
>> +++ b/hw/vfio/trace-events
>> @@ -120,7 +120,7 @@ vfio_region_sparse_mmap_header(const char *name, int
>> index, int nr_areas) "Devic
>>   vfio_region_sparse_mmap_entry(int i, unsigned long start, unsigned long end)
>> "sparse entry %d [0x%lx - 0x%lx]"
>>   vfio_get_dev_region(const char *name, int index, uint32_t type, uint32_t
>> subtype) "%s index %d, %08x/%08x"
>>   vfio_dma_unmap_overflow_workaround(void) ""
>> -vfio_get_dirty_bitmap(int fd, uint64_t iova, uint64_t size, uint64_t
>> bitmap_size, uint64_t start) "container fd=%d, iova=0x%"PRIx64" size=
>> 0x%"PRIx64" bitmap_size=0x%"PRIx64" start=0x%"PRIx64
>> +vfio_get_dirty_bitmap(int fd, uint64_t iova, uint64_t size, uint64_t
>> bitmap_size, uint64_t start, uint64_t dirty_pages) "container fd=%d,
>> iova=0x%"PRIx64" size= 0x%"PRIx64" bitmap_size=0x%"PRIx64" start=0x%"PRIx64"
>> dirty_pages=%"PRIu64
>>   vfio_iommu_map_dirty_notify(uint64_t iova_start, uint64_t iova_end) "iommu
>> dirty @ 0x%"PRIx64" - 0x%"PRIx64
>>
>>   # platform.c
>> -- 
>> 2.39.3
>>