Re: [RFC 1/3] hvc_console: rework setup to replace irq functions with callbacks

On Tuesday 03 June 2008 22:45:22 Christian Borntraeger wrote: > This patch tries to change hvc_console to not use request_irq/free_irq if > the backend does not use irqs. This allows virtio_console to use > hvc_console without having a linker reference to request_irq/free_irq. Two questions. Is i

Re: [RFC 1/3] hvc_console: rework setup to replace irq functions with callbacks (not word wrapped)

On Tuesday 03 June 2008, Christian Borntraeger wrote: > @@ -42,22 +42,48 @@ > */ > #define HVC_ALLOC_TTY_ADAPTERS 8 > > +struct hvc_struct { > + spinlock_t lock; > + int index; > + struct tty_struct *tty; > + unsigned int count; > + int do_wakeup; > + char *outbu

Re: [RFC 2/3] virtio_console: use virtqueue notification for hvc_console

On Tuesday 03 June 2008, Christian Borntraeger wrote: > > +/* The hvc device */ > +struct hvc_struct *hvc; > + I guess this should be static, a three letter identifier for a global variable is not really unique. Arnd <>< ___ Virtualization mai

[PATCH 2/5] Make xen use the paravirt clocksource structs and functions.

This patch updates the xen guest to use the pvclock structs and helper functions. Signed-off-by: Gerd Hoffmann <[EMAIL PROTECTED]> --- arch/x86/xen/Kconfig|1 + arch/x86/xen/time.c | 132 --- include/xen/interface/xen.h |7 +- 3 fil

[PATCH 1/5] Add structs and functions for paravirt clocksource.

This patch adds structs for the paravirt clocksource ABI used by both xen and kvm (pvclock-abi.h). It also adds some helper functions to read system time and wall clock time from a paravirtual clocksource (pvclock.[ch]). They are based on the xen code. They are enabled using CONFIG_PARAVIRT_CLOCK

[PATCH 5/5] Remove now unused structs from kvm_para.h

The kvm_* structs are obsoleted by the pvclock_* ones. Now all users have been switched over and the old structs can be dropped. Signed-off-by: Gerd Hoffmann <[EMAIL PROTECTED]> --- include/asm-x86/kvm_para.h | 18 -- 1 files changed, 0 insertions(+), 18 deletions(-) diff --git

[PATCH 4/5] Make kvm guest use the paravirt clocksource structs and functions.

This patch updates the kvm host code to use the pvclock structs and functions, thereby making it compatible with Xen. The patch also fixes an initialization bug: on SMP systems the per-cpu has two different locations early at boot and after CPU bringup. kvmclock must take that in account when reg

[PATCH 0/5] paravirt clock source patches, #5

paravirt clock source patches, next round. There is now a pvclock-abi.h file with the structs and some longish comments in it and everybody is switched over to use the stuff in there. Some minor tweaks after super-fast review by Jeremy. The queue is on top of the kvm git tree. The first two pat

[PATCH 3/5] Make kvm host use the paravirt clocksource structs.

This patch updates the kvm host code to use the pvclock structs. It also makes the paravirt clock compatible with Xen. Signed-off-by: Gerd Hoffmann <[EMAIL PROTECTED]> --- arch/x86/kvm/x86.c | 75 --- include/asm-x86/kvm_host.h |4 ++- 2 files

Re: [PATCH 0/5] paravirt clock source patches, #4

Jeremy Fitzhardinge wrote: > Gerd Hoffmann wrote: >> paravirt clock source patches, next round. >> >> There is now a pvclock-abi.h file with the structs and some longish >> comments in it and everybody is switched over to use the stuff in >> there. > > This all looks pretty good. How do you want

Re: [PATCH 0/5] paravirt clock source patches, #4

Jeremy Fitzhardinge wrote: > Gerd Hoffmann wrote: >> paravirt clock source patches, next round. >> >> There is now a pvclock-abi.h file with the structs and some longish >> comments in it and everybody is switched over to use the stuff in >> there. > > This all looks pretty good. How do you want

Re: [PATCH 0/5] paravirt clock source patches, #4

Gerd Hoffmann wrote: > paravirt clock source patches, next round. > > There is now a pvclock-abi.h file with the structs and some longish > comments in it and everybody is switched over to use the stuff in > there. This all looks pretty good. How do you want this to get into the kernel? J __

Re: [PATCH 2/5] Make xen use the paravirt clocksource structs and functions.

Gerd Hoffmann wrote: > This patch updates the xen guest to use the pvclock structs > and helper functions. > > Signed-off-by: Gerd Hoffmann <[EMAIL PROTECTED]> > --- > arch/x86/xen/Kconfig|1 + > arch/x86/xen/time.c | 130 > --- > inclu

Re: [PATCH 1/5] Add structs and functions for paravirt clocksource.

Gerd Hoffmann wrote: > +/* > + * These structs MUST NOT be changed. > + * They are the ABI between hypervisor and guest OS. > + * Both Xen and KVM are using this. > + * > + * pvclock_vcpu_time_info holds the system time and the tsc timestamp > + * of the last update. So the guest can use the tsc de

Re: [PATCH 5/5] Remove now unused structs from kvm_para.h

You sent these patches to "kvm-owner", ie. the mailing list owner, and not the list itself which would be plain "kvm". ___ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/virtuali

[PATCH 2/5] Make xen use the paravirt clocksource structs and functions.

This patch updates the xen guest to use the pvclock structs and helper functions. Signed-off-by: Gerd Hoffmann <[EMAIL PROTECTED]> --- arch/x86/xen/Kconfig|1 + arch/x86/xen/time.c | 130 --- include/xen/interface/xen.h |5 +- 3 fil

[PATCH 1/5] Add structs and functions for paravirt clocksource.

This patch adds structs for the paravirt clocksource ABI used by both xen and kvm (pvclock-abi.h). It also adds some helper functions to read system time and wall clock time from a paravirtual clocksource (pvclock.[ch]). They are based on the xen code. They are enabled using CONFIG_PARAVIRT_CLOCK

[PATCH 4/5] Make kvm guest use the paravirt clocksource structs and functions.

This patch updates the kvm host code to use the pvclock structs and functions, thereby making it compatible with Xen. The patch also fixes an initialization bug: on SMP systems the per-cpu has two different locations early at boot and after CPU bringup. kvmclock must take that in account when reg

[PATCH 3/5] Make kvm host use the paravirt clocksource structs.

This patch updates the kvm host code to use the pvclock structs. It also makes the paravirt clock compatible with Xen. Signed-off-by: Gerd Hoffmann <[EMAIL PROTECTED]> --- arch/x86/kvm/x86.c | 75 --- include/asm-x86/kvm_host.h |4 ++- 2 files

[PATCH 0/5] paravirt clock source patches, #4

paravirt clock source patches, next round. There is now a pvclock-abi.h file with the structs and some longish comments in it and everybody is switched over to use the stuff in there. cheers, Gerd ___ Virtualization mailing list Virtualization@lists.

[PATCH 5/5] Remove now unused structs from kvm_para.h

The kvm_* structs are obsoleted by the pvclock_* ones. Now all users have been switched over and the old structs can be dropped. Signed-off-by: Gerd Hoffmann <[EMAIL PROTECTED]> --- include/asm-x86/kvm_para.h | 18 -- 1 files changed, 0 insertions(+), 18 deletions(-) diff --git

[RFC 2/3] virtio_console: use virtqueue notification for hvc_console

This patch exploits the new notifier callbacks of the hvc_console. We can use the virtio callbacks instead of the polling code. I also added a small Kconfig change that allows the user to specify the virtio console in menuconfig. Signed-off-by: Christian Borntraeger <[EMAIL PROTECTED]> --- d

[RFC 3/3] s390: use virtio_console for KVM on s390

This patch enables virtio_console as the default console on kvm for s390. We currently use the same notify hack as lguest for early console output. I will try to address this for lguest and s390 later. Signed-off-by: Christian Borntraeger <[EMAIL PROTECTED]> --- arch/s390/Kconfig |

[RFC 1/3] hvc_console: rework setup to replace irq functions with callbacks (not word wrapped)

This patch tries to change hvc_console to not use request_irq/free_irq if the backend does not use irqs. This allows virtio_console to use hvc_console without having a linker reference to request_irq/free_irq. The irq specific code is moved to hvc_irq.c and selected by the drivers that use irqs (S

[RFC 1/3] hvc_console: rework setup to replace irq functions with callbacks

This patch tries to change hvc_console to not use request_irq/free_irq if the backend does not use irqs. This allows virtio_console to use hvc_console without having a linker reference to request_irq/free_irq. The irq specific code is moved to hvc_irq.c and selected by the drivers that use irqs (S

[RFC 0/3]: hvc_console rework for platform without hard irqs

This patch set if my first attempt to make virtio_console usable on s390. To do so, I had to change hvc_console, because s390 has no request_irq and no free_irq. I want to get feedback from the main users of hvc_console before I proceed. The basic idea of this patch set is to remove the calls to r