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Re: [PATCH] make vfio and DAX cache work together by skipping virtio fs
From: |
Laurent Vivier |
Subject: |
Re: [PATCH] make vfio and DAX cache work together by skipping virtio fs cache section during vfio memory region add |
Date: |
Mon, 26 Apr 2021 15:32:22 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 |
On 26/04/2021 07:45, Edge NFV wrote:
> Signed-off-by: Edge NFV <edgenfv@gmail.com>
You must use your real name for a patch submission:
https://wiki.qemu.org/Contribute/SubmitAPatch#Patch_emails_must_include_a_Signed-off-by:_line
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/SubmittingPatches?id=f6f94e2ab1b33f0082ac22d71f66385a60d8157f#n297
And CC: maintainer of the file:
$ ./scripts/get_maintainer.pl -f hw/vfio/common.c
Alex Williamson <alex.williamson@redhat.com> (supporter:VFIO)
qemu-devel@nongnu.org (open list:All patches CC here)
If you want to submit it to qemu-trivial, don't send a separate mail, but cc:
also
qemu-trivial.
Thanks,
Laurent
> ---
> hw/vfio/common.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/hw/vfio/common.c b/hw/vfio/common.c
> index ae5654fcdb..83e15bf7a3 100644
> --- a/hw/vfio/common.c
> +++ b/hw/vfio/common.c
> @@ -668,6 +668,15 @@ static void vfio_listener_region_add(MemoryListener
> *listener,
> int128_get64(int128_sub(section->size, int128_one())));
> return;
> }
> +
> + /* Do not add virtio fs cache section */
> + if (!strcmp(memory_region_name(section->mr), "virtio-fs-cache")) {
> + trace_vfio_listener_region_add_skip(
> + section->offset_within_address_space,
> + section->offset_within_address_space +
> + int128_get64(int128_sub(section->size, int128_one())));
> + return;
> + }
>
> if (unlikely((section->offset_within_address_space &
> ~qemu_real_host_page_mask) !=
>