search for: lepton

Looks like people send many names in the contest, so shall I do too. I propose "Lepton", loosely meaning light (featherweight) in Greek. It is used in particle physics to refer to very light particles (electrons, muons). For me it also has the connotations of fastness and restlessness (in the LLVM sense of post-compile optimization). See more at: http://en.wikipedia.org/wiki...

Add create_handle support to virtio fb. Without this, screenshot tool in chromium OS can't work. Signed-off-by: Lepton Wu <ytht.net at gmail.com> --- drivers/gpu/drm/virtio/virtgpu_display.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c b/drivers/gpu/drm/virtio/virtgpu_display.c index b6d52055a11f..274b4206ca96 100644 --- a/drivers/gpu/drm/virtio/v...

Add create_handle support to virtio fb. Without this, screenshot tool in chromium OS can't work. Signed-off-by: Lepton Wu <ytht.net at gmail.com> --- drivers/gpu/drm/virtio/virtgpu_display.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c b/drivers/gpu/drm/virtio/virtgpu_display.c index b6d52055a11f..274b4206ca96 100644 --- a/drivers/gpu/drm/virtio/v...

...ot;unsigned long" which is 64 bits on amd64 arch and 32 bits on i386 arch. This makes pygrub can't work on reiserfs on amd64 arch. You can easily reproduce it. A patch is included for fixing this problem. diff -ur xen-3-3.2.1/tools/libfsimage/reiserfs/fsys_reiserfs.c xen-3-3.2.1-lepton/tools/libfsimage/reiserfs/fsys_reiserfs.c --- xen-3-3.2.1/tools/libfsimage/reiserfs/fsys_reiserfs.c 2008-05-12 19:01:57.000000000 +0800 +++ xen-3-3.2.1-lepton/tools/libfsimage/reiserfs/fsys_reiserfs.c 2011-01-10 16:37:38.000000000 +0800 @@ -222,7 +222,7 @@ struct disk_child { - unsigned long...

On Wed, Apr 29, 2020 at 2:57 AM Jason Wang <jasowang at redhat.com> wrote: > > > On 2020/4/29 ??4:47, Lepton Wu wrote: > > This is a way to create virtio based devices from user space. This is the > > background for this patch: > > > > We have some images works fine under qemu, we'd like to also run the same image > > on Google Cloud. Currently Google Cloud doesn't su...

On Mon, Nov 13, 2017 at 02:19:29PM -0800, lepton wrote: > Ping. > > On Wed, Nov 8, 2017 at 10:42 AM, Lepton Wu <ytht.net at gmail.com> wrote: > > Add create_handle support to virtio fb. Without this, screenshot tool > > in chromium OS can't work. Already queued up in drm-misc-next (the cirrus patch too). cheers,...

On 2020/4/29 ??4:47, Lepton Wu wrote: > This is a way to create virtio based devices from user space. This is the > background for this patch: > > We have some images works fine under qemu, we'd like to also run the same image > on Google Cloud. Currently Google Cloud doesn't support virtio-vga. I had a...

Ping. On Wed, Nov 8, 2017 at 10:42 AM, Lepton Wu <ytht.net at gmail.com> wrote: > Add create_handle support to virtio fb. Without this, screenshot tool > in chromium OS can't work. > > Signed-off-by: Lepton Wu <ytht.net at gmail.com> > --- > drivers/gpu/drm/virtio/virtgpu_display.c | 12 ++++++++++++ > 1 f...

...a from kernel directly: https://www.spinics.net/lists/dri-devel/msg248573.html Then I got feedback from Gerd that maybe it's better to change that to something like uvirtio. Since I really don't have other use cases for now, I just implemented the minimal stuff which work for my use case. Lepton Wu (1): virtio: Add uvirtio driver drivers/virtio/Kconfig | 8 + drivers/virtio/Makefile | 1 + drivers/virtio/uvirtio.c | 405 ++++++++++++++++++++++++++++++++++ include/linux/uvirtio.h | 8 + include/uapi/linux/uvirtio.h | 69 ++++++ samples/uvirtio/Makefile...

...a from kernel directly: https://www.spinics.net/lists/dri-devel/msg248573.html Then I got feedback from Gerd that maybe it's better to change that to something like uvirtio. Since I really don't have other use cases for now, I just implemented the minimal stuff which work for my use case. Lepton Wu (1): virtio: Add uvirtio driver drivers/virtio/Kconfig | 8 + drivers/virtio/Makefile | 1 + drivers/virtio/uvirtio.c | 405 ++++++++++++++++++++++++++++++++++ include/linux/uvirtio.h | 8 + include/uapi/linux/uvirtio.h | 69 ++++++ samples/uvirtio/Makefile...

On Wed, Apr 29, 2020 at 08:59:18PM -0700, lepton wrote: > On Wed, Apr 29, 2020 at 4:58 AM Gerd Hoffmann <kraxel at redhat.com> wrote: > > > > > 3) Need to be verbose on how the vring processing work in the commit log of > > > patch 1 > > > > Ecven better a file documenting the interface somewhere in &g...

Add create_handle support to cirrus fb. Without this, screenshot tool in chromium OS can't work. Signed-off-by: Lepton Wu <ytht.net at gmail.com> --- drivers/gpu/drm/cirrus/cirrus_main.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/cirrus/cirrus_main.c b/drivers/gpu/drm/cirrus/cirrus_main.c index b5f528543956..26df1e8cd490 100644 --- a/drivers/gpu/drm/cirrus/cirrus_main.c +++...

> 3) Need to be verbose on how the vring processing work in the commit log of > patch 1 Ecven better a file documenting the interface somewhere in Documentation/ take care, Gerd

Add create_handle support to cirrus fb. Without this, screenshot tool in chromium OS can't work. Signed-off-by: Lepton Wu <ytht.net at gmail.com> --- drivers/gpu/drm/cirrus/cirrus_main.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/cirrus/cirrus_main.c b/drivers/gpu/drm/cirrus/cirrus_main.c index b5f528543956..26df1e8cd490 100644 --- a/drivers/gpu/drm/cirrus/cirrus_main.c +++...

> 3) Need to be verbose on how the vring processing work in the commit log of > patch 1 Ecven better a file documenting the interface somewhere in Documentation/ take care, Gerd

...iver. So it's an API proxy between host and VM guest. We just proxy API at system call level. 3. Some nasty things was done in guest kernel as a quick dirty hack so we don't need to touch user space (wayland/mesa etc) now. 4. You can check tools/forward/README for instructions. Thanks! Lepton Wu (1): proof of concept for GPU forwarding arch/x86/configs/x86_64_defconfig | 5 + drivers/char/Makefile | 1 + drivers/char/forwarder/Makefile | 8 + drivers/char/forwarder/forwarder.h | 103 ++ drivers/char/forwarder/forwarder_drv.c | 2104 ++++++++...

On Wed, Apr 29, 2020 at 4:58 AM Gerd Hoffmann <kraxel at redhat.com> wrote: > > > 3) Need to be verbose on how the vring processing work in the commit log of > > patch 1 > > Ecven better a file documenting the interface somewhere in > Documentation/ I put a uvirtio-vga.c under samples/uvirtio and hope this can serve the purpose of the document since currently