diff mbox series

[v2,2/2] hw/vfio: Add nr of dirty pages to vfio_get_dirty_bitmap tracepoint

Message ID 20230525114321.71066-3-joao.m.martins@oracle.com (mailing list archive)
State New, archived
Headers show
Series hw/vfio: Improve vfio_get_dirty_bitmap() tracepoint | expand

Commit Message

Joao Martins May 25, 2023, 11:43 a.m. UTC 
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().

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(-)

Comments

Philippe Mathieu-Daudé May 25, 2023, 11:52 a.m. UTC | #1 
Hi Joao,

On 25/5/23 13:43, Joao Martins wrote:
> 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().
> 
> 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 4d01ea351515..3c9af2fed1b1 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);
>       VFIOBitmap vbmap;
> +    uint64_t dirty;

Could we rename this 'dirty_pages'?

>       int ret;
>   
>       if (!container->dirty_pages_supported && !all_device_dirty_tracking) {
> @@ -1771,11 +1772,11 @@ 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 = 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);
>   out:
>       g_free(vbmap.bitmap);
>   
> diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events
> index 646e42fd27f9..9265a406eda1 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) "container fd=%d, iova=0x%"PRIx64" size= 0x%"PRIx64" bitmap_size=0x%"PRIx64" start=0x%"PRIx64" dirty=%"PRIu64

Ditto.

>   vfio_iommu_map_dirty_notify(uint64_t iova_start, uint64_t iova_end) "iommu dirty @ 0x%"PRIx64" - 0x%"PRIx64
>   
>   # platform.c
Joao Martins May 25, 2023, 1:36 p.m. UTC | #2 
On 25/05/2023 12:52, Philippe Mathieu-Daudé wrote:
> Hi Joao,
> 
> On 25/5/23 13:43, Joao Martins wrote:
>> 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().
>>
>> 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 4d01ea351515..3c9af2fed1b1 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);
>>       VFIOBitmap vbmap;
>> +    uint64_t dirty;
> 
> Could we rename this 'dirty_pages'?
> 
Yeap, will do.

>>       int ret;
>>         if (!container->dirty_pages_supported && !all_device_dirty_tracking) {
>> @@ -1771,11 +1772,11 @@ 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 = 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);
>>   out:
>>       g_free(vbmap.bitmap);
>>   diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events
>> index 646e42fd27f9..9265a406eda1 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) "container fd=%d,
>> iova=0x%"PRIx64" size= 0x%"PRIx64" bitmap_size=0x%"PRIx64" start=0x%"PRIx64"
>> dirty=%"PRIu64
> 
> Ditto.
> 
/me nods
diff mbox series

Patch

diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index 4d01ea351515..3c9af2fed1b1 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);
     VFIOBitmap vbmap;
+    uint64_t dirty;
     int ret;
 
     if (!container->dirty_pages_supported && !all_device_dirty_tracking) {
@@ -1771,11 +1772,11 @@  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 = 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);
 out:
     g_free(vbmap.bitmap);
 
diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events
index 646e42fd27f9..9265a406eda1 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) "container fd=%d, iova=0x%"PRIx64" size= 0x%"PRIx64" bitmap_size=0x%"PRIx64" start=0x%"PRIx64" dirty=%"PRIu64
 vfio_iommu_map_dirty_notify(uint64_t iova_start, uint64_t iova_end) "iommu dirty @ 0x%"PRIx64" - 0x%"PRIx64
 
 # platform.c