* [dpdk-dev] [PATCH] vhost: fix offset while mmaping log base address
@ 2018-02-08 16:59 Tomasz Kulasek
2018-02-09 1:54 ` Tan, Jianfeng
2018-02-19 21:03 ` Maxime Coquelin
0 siblings, 2 replies; 3+ messages in thread
From: Tomasz Kulasek @ 2018-02-08 16:59 UTC (permalink / raw)
To: yliu; +Cc: dev, yuanhan.liu, stable, Pawel Wodkowski
QEMU always set offset to 0 but for sanity we should take the offset
into account.
Fixes: 54f9e32305d4 ("vhost: handle dirty pages logging request")
Cc: yuanhan.liu@linux.intel.com
Cc: stable@dpdk.org
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Signed-off-by: Tomasz Kulasek <tomaszx.kulasek@intel.com>
---
lib/librte_vhost/vhost_user.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index 65ee33919..674f2ffe8 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -991,7 +991,7 @@ vhost_user_set_log_base(struct virtio_net *dev, struct VhostUserMsg *msg)
* mmap from 0 to workaround a hugepage mmap bug: mmap will
* fail when offset is not page size aligned.
*/
- addr = mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+ addr = mmap(0, size + off, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
close(fd);
if (addr == MAP_FAILED) {
RTE_LOG(ERR, VHOST_CONFIG, "mmap log base failed!\n");
--
2.14.1
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [dpdk-dev] [PATCH] vhost: fix offset while mmaping log base address
2018-02-08 16:59 [dpdk-dev] [PATCH] vhost: fix offset while mmaping log base address Tomasz Kulasek
@ 2018-02-09 1:54 ` Tan, Jianfeng
2018-02-19 21:03 ` Maxime Coquelin
1 sibling, 0 replies; 3+ messages in thread
From: Tan, Jianfeng @ 2018-02-09 1:54 UTC (permalink / raw)
To: Kulasek, TomaszX, yliu; +Cc: dev, yuanhan.liu, stable, Wodkowski, PawelX
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Tomasz Kulasek
> Sent: Friday, February 9, 2018 1:00 AM
> To: yliu@fridaylinux.org
> Cc: dev@dpdk.org; yuanhan.liu@linux.intel.com; stable@dpdk.org;
> Wodkowski, PawelX
> Subject: [dpdk-dev] [PATCH] vhost: fix offset while mmaping log base
> address
>
> QEMU always set offset to 0 but for sanity we should take the offset
> into account.
>
> Fixes: 54f9e32305d4 ("vhost: handle dirty pages logging request")
> Cc: yuanhan.liu@linux.intel.com
> Cc: stable@dpdk.org
>
> Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
> Signed-off-by: Tomasz Kulasek <tomaszx.kulasek@intel.com>
Reviewed-by: Jianfeng Tan <jianfeng.tan@intel.com>
Thanks!
> ---
> lib/librte_vhost/vhost_user.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
> index 65ee33919..674f2ffe8 100644
> --- a/lib/librte_vhost/vhost_user.c
> +++ b/lib/librte_vhost/vhost_user.c
> @@ -991,7 +991,7 @@ vhost_user_set_log_base(struct virtio_net *dev,
> struct VhostUserMsg *msg)
> * mmap from 0 to workaround a hugepage mmap bug: mmap will
> * fail when offset is not page size aligned.
> */
> - addr = mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd,
> 0);
> + addr = mmap(0, size + off, PROT_READ | PROT_WRITE,
> MAP_SHARED, fd, 0);
> close(fd);
> if (addr == MAP_FAILED) {
> RTE_LOG(ERR, VHOST_CONFIG, "mmap log base failed!\n");
> --
> 2.14.1
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [dpdk-dev] [PATCH] vhost: fix offset while mmaping log base address
2018-02-08 16:59 [dpdk-dev] [PATCH] vhost: fix offset while mmaping log base address Tomasz Kulasek
2018-02-09 1:54 ` Tan, Jianfeng
@ 2018-02-19 21:03 ` Maxime Coquelin
1 sibling, 0 replies; 3+ messages in thread
From: Maxime Coquelin @ 2018-02-19 21:03 UTC (permalink / raw)
To: Tomasz Kulasek, yliu; +Cc: dev, yuanhan.liu, stable, Pawel Wodkowski
On 02/08/2018 05:59 PM, Tomasz Kulasek wrote:
> QEMU always set offset to 0 but for sanity we should take the offset
> into account.
>
> Fixes: 54f9e32305d4 ("vhost: handle dirty pages logging request")
> Cc: yuanhan.liu@linux.intel.com
> Cc: stable@dpdk.org
>
> Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
> Signed-off-by: Tomasz Kulasek <tomaszx.kulasek@intel.com>
> ---
> lib/librte_vhost/vhost_user.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
and applied to dpdk-next-virtio/master.
Thanks,
Maxime
^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-02-08 16:59 [dpdk-dev] [PATCH] vhost: fix offset while mmaping log base address Tomasz Kulasek
2018-02-09 1:54 ` Tan, Jianfeng
2018-02-19 21:03 ` Maxime Coquelin
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