search for: hvc

...tch having gotten into Linus' tree, and leaving other people to deal with crashes. I had meant to be asking for guidance, but I didn't mark it as "RFC". This series reflects the input from Konrad Rzeszutek, Amit Shah, Stephen Boyd, and Rusty Russell. I think we do have to limit hvc_alloc() to one thread. I would appreciate any comments or feedback, or accept if appropriate. Thanks, Miche Baker-Harvey --- Miche Baker-Harvey (3): virtio_console: Fix locking of vtermno. hvc_init(): Enforce one-time initialization. Use separate struct console structure for...

...tch having gotten into Linus' tree, and leaving other people to deal with crashes. I had meant to be asking for guidance, but I didn't mark it as "RFC". This series reflects the input from Konrad Rzeszutek, Amit Shah, Stephen Boyd, and Rusty Russell. I think we do have to limit hvc_alloc() to one thread. I would appreciate any comments or feedback, or accept if appropriate. Thanks, Miche Baker-Harvey --- Miche Baker-Harvey (3): virtio_console: Fix locking of vtermno. hvc_init(): Enforce one-time initialization. Use separate struct console structure for...

...tch having gotten into Linus' tree, and leaving other people to deal with crashes. I had meant to be asking for guidance, but I didn't mark it as "RFC". This series reflects the input from Konrad Rzeszutek, Amit Shah, Stephen Boyd, and Rusty Russell. I think we do have to limit hvc_alloc() to one thread. I would appreciate any comments or feedback, or accept if appropriate. Thanks, Miche Baker-Harvey --- Miche Baker-Harvey (3): virtio_console: Fix locking of vtermno. hvc_init(): Enforce one-time initialization. Use separate struct console structure for...

...tch having gotten into Linus' tree, and leaving other people to deal with crashes. I had meant to be asking for guidance, but I didn't mark it as "RFC". This series reflects the input from Konrad Rzeszutek, Amit Shah, Stephen Boyd, and Rusty Russell. I think we do have to limit hvc_alloc() to one thread. I would appreciate any comments or feedback, or accept if appropriate. Thanks, Miche Baker-Harvey --- Miche Baker-Harvey (3): virtio_console: Fix locking of vtermno. hvc_init(): Enforce one-time initialization. Use separate struct console structure for...

...tch having gotten into Linus' tree, and leaving other people to deal with crashes. I had meant to be asking for guidance, but I didn't mark it as "RFC". This series reflects the input from Konrad Rzeszutek, Amit Shah, Stephen Boyd, and Rusty Russell. I think we do have to limit hvc_alloc() to one thread. I would appreciate any comments or feedback, or accept if appropriate. Thanks, Miche Baker-Harvey --- Miche Baker-Harvey (3): virtio_console: Fix locking of vtermno. hvc_init(): Enforce one-time initialization. Use separate struct console structure for...

...uh? Note: the ''xl'' toolstack _does_ set it. The reason is that the when the xen-platform-pci starts, it requests an PIRQ, and the info structure in events.c is filled as such: info->type = IRQT_PIRQ info->events = 0 info->irq = 28 evtchn_to_irq[0] = 28 And when xen_hvc_init is called during bootup, it figures out the event from HVM_PARAM_CONSOLE_EVTCHN as zero, and plugs them in: 532 info->irq = bind_evtchn_to_irq(info->evtchn); getting IRQ 28 as bind_evtchn_to_irq does a quick lookup: 818 irq = evtchn_to_irq[evtchn]; and gives...

...gotten into Linus'' tree, and leaving other people to deal with crashes. I had meant to be asking for guidance, but I didn''t mark it as "RFC". This series reflects the input from Konrad Rzeszutek, Amit Shah, Stephen Boyd, and Rusty Russell. I think we do have to limit hvc_alloc() to one thread. I would appreciate any comments or feedback, or accept if appropriate. Thanks, Miche Baker-Harvey --- Miche Baker-Harvey (3): virtio_console: Fix locking of vtermno. hvc_init(): Enforce one-time initialization. Use separate struct console structure for...

I had a quick try to make it work, but no success thus far. Should it be enough to apply the patch and then boot with "console=/dev/hvc0"? Also, why do you comment out the EARLY_PRINTK stuff in Kconfig? J

I had a quick try to make it work, but no success thus far. Should it be enough to apply the patch and then boot with "console=/dev/hvc0"? Also, why do you comment out the EARLY_PRINTK stuff in Kconfig? J

...r. Since v4.9 > (if VMAP_STACK is enabled) we shouldn't use the stack for DMA. You shouldn't use 'static' data either, that's not always guaranteed to be DMA-able, right? > > Signed-off-by: Jan Dakinevich <jan.dakinevich at gmail.com> > --- > drivers/tty/hvc/hvc_console.c | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c > index 9b5c0fb..1ce6aaf 100644 > --- a/drivers/tty/hvc/hvc_console.c > +++ b/drivers/tty/hvc/hvc_console.c > @@ -143,10 +...

...r. Since v4.9 > (if VMAP_STACK is enabled) we shouldn't use the stack for DMA. You shouldn't use 'static' data either, that's not always guaranteed to be DMA-able, right? > > Signed-off-by: Jan Dakinevich <jan.dakinevich at gmail.com> > --- > drivers/tty/hvc/hvc_console.c | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c > index 9b5c0fb..1ce6aaf 100644 > --- a/drivers/tty/hvc/hvc_console.c > +++ b/drivers/tty/hvc/hvc_console.c > @@ -143,10 +...

Fix the polling section of the hvc driver to use the global "last_hvc" variable, rather than the ttys. With this change debugging a xen dom0 kernel is possible via the following kernel parameter: kgdboc=hvc0 Signed-off-by: Ben Guthro <Benjamin.Guthro@citrix.com> diff --git a/drivers/tty/hvc/hvc_console.c b/driver...

Use the compiler to verify printf formats and arguments. Fix fallout. Signed-off-by: Joe Perches <joe at perches.com> --- drivers/block/xen-blkback/xenbus.c | 2 +- include/xen/hvc-console.h | 4 +++- include/xen/xenbus.h | 2 ++ 3 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 6cc0db1..3f129b4 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/b...

Use the compiler to verify printf formats and arguments. Fix fallout. Signed-off-by: Joe Perches <joe at perches.com> --- drivers/block/xen-blkback/xenbus.c | 2 +- include/xen/hvc-console.h | 4 +++- include/xen/xenbus.h | 2 ++ 3 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 6cc0db1..3f129b4 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/b...

Use the compiler to verify printf formats and arguments. Fix fallout. Signed-off-by: Joe Perches <joe at perches.com> --- drivers/block/xen-blkback/xenbus.c | 2 +- include/xen/hvc-console.h | 4 +++- include/xen/xenbus.h | 2 ++ 3 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 6cc0db1..3f129b4 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/b...

Hi all, this small patch series implement guest SMP support for ARM, using the ARM PSCI interface for secondary cpu bringup. Stefano Stabellini (4): xen/arm: basic PSCI support, implement cpu_on xen/arm: support for guest SGI xen/arm: support vcpu_op hypercalls xen: move VCPUOP_register_vcpu_info to common code xen/arch/arm/domain.c | 66 ++++++++++++++++++++++++

plain text document attachment (lguest64-hvc.patch) This is a start to try to get HVC working for x86_64. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Glauber de Oliveira Costa <glommer@gmail.com> Cc: Chris Wright <chrisw@sous-sol.org> Index: work-pv/drivers/char/Kconfig =============================...

Hello, When multiple hvc console ports are initialised and used via the virtio_console driver, I can interact with only the first console, the 2nd one doesn't respond. If I call hvc_kick() even if hvc_poll() returns 0, the 2nd console becomes responsive. I've checked that hvc_poll() receives data via get_chars()...

plain text document attachment (lguest64-hvc.patch) This is a start to try to get HVC working for x86_64. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Glauber de Oliveira Costa <glommer@gmail.com> Cc: Chris Wright <chrisw@sous-sol.org> Index: work-pv/drivers/char/Kconfig =============================...

Hello, When multiple hvc console ports are initialised and used via the virtio_console driver, I can interact with only the first console, the 2nd one doesn't respond. If I call hvc_kick() even if hvc_poll() returns 0, the 2nd console becomes responsive. I've checked that hvc_poll() receives data via get_chars()...