search for: console_driv

This makes the Xen console just work. Before, you had to ask for it on the kernel command line with console=hvc0 Signed-off-by: Markus Armbruster <armbru at redhat.com> --- diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 49e5358..df63185 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -25,6 +25,7 @@ #include <linux/mm.h> #include

...rtions(+), 1 deletions(-) diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c index 428d273..4abb0b9 100644 --- a/drivers/video/xen-fbfront.c +++ b/drivers/video/xen-fbfront.c @@ -492,7 +492,7 @@ xenfb_make_preferred_console(void) return; acquire_console_sem(); - for (c = console_drivers; c; c = c->next) { + for_each_console(c) { if (!strcmp(c->name, "tty") && c->index == 0) break; } -- 1.7.3.1

...rtions(+), 1 deletions(-) diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c index 428d273..4abb0b9 100644 --- a/drivers/video/xen-fbfront.c +++ b/drivers/video/xen-fbfront.c @@ -492,7 +492,7 @@ xenfb_make_preferred_console(void) return; acquire_console_sem(); - for (c = console_drivers; c; c = c->next) { + for_each_console(c) { if (!strcmp(c->name, "tty") && c->index == 0) break; } -- 1.7.3.1

...rtions(+), 1 deletions(-) diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c index 428d273..4abb0b9 100644 --- a/drivers/video/xen-fbfront.c +++ b/drivers/video/xen-fbfront.c @@ -492,7 +492,7 @@ xenfb_make_preferred_console(void) return; acquire_console_sem(); - for (c = console_drivers; c; c = c->next) { + for_each_console(c) { if (!strcmp(c->name, "tty") && c->index == 0) break; } -- 1.7.3.1

...drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 464d09d..6158eae 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -3256,7 +3256,7 @@ static ssize_t show_cons_active(struct device *dev, struct console *c; ssize_t count = 0; - acquire_console_sem(); + console_lock(); for (c = console_drivers; c; c = c->next) { if (!c->device) continue; @@ -3271,7 +3271,7 @@ static ssize_t show_cons_active(struct device *dev, while (i--) count += sprintf(buf + count, "%s%d%c", cs[i]->name, cs[i]->index, i ? ' ':'\n'); - release_console_sem(); +...

...drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 464d09d..6158eae 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -3256,7 +3256,7 @@ static ssize_t show_cons_active(struct device *dev, struct console *c; ssize_t count = 0; - acquire_console_sem(); + console_lock(); for (c = console_drivers; c; c = c->next) { if (!c->device) continue; @@ -3271,7 +3271,7 @@ static ssize_t show_cons_active(struct device *dev, while (i--) count += sprintf(buf + count, "%s%d%c", cs[i]->name, cs[i]->index, i ? ' ':'\n'); - release_console_sem(); +...

...drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 464d09d..6158eae 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -3256,7 +3256,7 @@ static ssize_t show_cons_active(struct device *dev, struct console *c; ssize_t count = 0; - acquire_console_sem(); + console_lock(); for (c = console_drivers; c; c = c->next) { if (!c->device) continue; @@ -3271,7 +3271,7 @@ static ssize_t show_cons_active(struct device *dev, while (i--) count += sprintf(buf + count, "%s%d%c", cs[i]->name, cs[i]->index, i ? ' ':'\n'); - release_console_sem(); +...

...goto error; + xenfb_make_preferred_console(); return 0; error_nomem: @@ -358,6 +361,25 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, return ret; } +static __devinit void +xenfb_make_preferred_console(void) +{ + struct console *c; + + acquire_console_sem(); + for (c = console_drivers; c; c = c->next) { + if (!strcmp(c->name, "tty") && c->index == 0) + break; + } + release_console_sem(); + if (c) { + unregister_console(c); + c->flags |= CON_CONSDEV; + c->flags &= ~CON_PRINTBUFFER; /* don't print again */ + register_console(c); +...

...goto error; + xenfb_make_preferred_console(); return 0; error_nomem: @@ -358,6 +361,25 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, return ret; } +static __devinit void +xenfb_make_preferred_console(void) +{ + struct console *c; + + acquire_console_sem(); + for (c = console_drivers; c; c = c->next) { + if (!strcmp(c->name, "tty") && c->index == 0) + break; + } + release_console_sem(); + if (c) { + unregister_console(c); + c->flags |= CON_CONSDEV; + c->flags &= ~CON_PRINTBUFFER; /* don't print again */ + register_console(c); +...

...goto error; + xenfb_make_preferred_console(); return 0; error_nomem: @@ -358,6 +361,25 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, return ret; } +static __devinit void +xenfb_make_preferred_console(void) +{ + struct console *c; + + acquire_console_sem(); + for (c = console_drivers; c; c = c->next) { + if (!strcmp(c->name, "tty") && c->index == 0) + break; + } + release_console_sem(); + if (c) { + unregister_console(c); + c->flags |= CON_CONSDEV; + c->flags &= ~CON_PRINTBUFFER; /* don't print again */ + register_console(c); +...

This is an update to the Linux part of the Xen PVFB. Linux Xen PVFB is a pair of Xen para-virtual frontend device drivers: drivers/video/xen-fbfront.c provides a framebuffer, and drivers/input/xen-kbdfront provides keyboard and mouse. Their backends run in dom0 user space. Parts in this patch series: 1. Enable Xen console by default in domU 2. Pointer z-axis (mouse wheel) support 3. Module

This is an update to the Linux part of the Xen PVFB. Linux Xen PVFB is a pair of Xen para-virtual frontend device drivers: drivers/video/xen-fbfront.c provides a framebuffer, and drivers/input/xen-kbdfront provides keyboard and mouse. Their backends run in dom0 user space. Parts in this patch series: 1. Enable Xen console by default in domU 2. Pointer z-axis (mouse wheel) support 3. Module

This is an update to the Linux part of the Xen PVFB. Linux Xen PVFB is a pair of Xen para-virtual frontend device drivers: drivers/video/xen-fbfront.c provides a framebuffer, and drivers/input/xen-kbdfront provides keyboard and mouse. Their backends run in dom0 user space. Parts in this patch series: 1. Enable Xen console by default in domU 2. Pointer z-axis (mouse wheel) support 3. Module

...virtio_fb_check_var, > + .fb_set_par = virtio_fb_set_par, > +}; > + > +static __devinit void > +virtio_fb_make_preferred_console(void) > +{ > + struct console *c; > + > + if (console_set_on_cmdline) > + return; > + > + acquire_console_sem(); > + for (c = console_drivers; c; c = c->next) { > + if (!strcmp(c->name, "tty") && c->index == 0) > + break; > + } {} not needed > + release_console_sem(); Just a thought: can console c go away at this point? > + if (c) { > + unregister_console(c); > + c->flags |=...

...virtio_fb_check_var, > + .fb_set_par = virtio_fb_set_par, > +}; > + > +static __devinit void > +virtio_fb_make_preferred_console(void) > +{ > + struct console *c; > + > + if (console_set_on_cmdline) > + return; > + > + acquire_console_sem(); > + for (c = console_drivers; c; c = c->next) { > + if (!strcmp(c->name, "tty") && c->index == 0) > + break; > + } {} not needed > + release_console_sem(); Just a thought: can console c go away at this point? > + if (c) { > + unregister_console(c); > + c->flags |=...

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Unlike full virtualization in which the virtual machine provides the same platform interface as running natively on the hardware, paravirtualization requires modification to the guest operating system to work with the platform interface provided by the hypervisor. Xen was designed with performance in mind. Calls to the hypervisor are minimized, batched if necessary, and non-critical codepaths

Unlike full virtualization in which the virtual machine provides the same platform interface as running natively on the hardware, paravirtualization requires modification to the guest operating system to work with the platform interface provided by the hypervisor. Xen was designed with performance in mind. Calls to the hypervisor are minimized, batched if necessary, and non-critical codepaths