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Hello, I find a strange behavior. When a machine is slow (or with many debug traces or a qemu vm), a interrupt can occur between the pv_irq_ops initialization and the xen_vcpu[0] initialization. This lead to a problem because some operations in xen_irq_ops use xen_vcpu. I send you a patch to fix that but I''m not quite sure that is the right solution. Regards, Anthoine From ac683ad8264f83fa0a5d743e18c0422e43e871d2 Mon Sep 17 00:...

...nmap_domain_pirq(d, unmap->pirq); - spin_unlock_irqrestore(&d->arch.irq_lock, flags); + spin_unlock(&d->evtchn_lock); rcu_unlock_domain(d); @@ -416,7 +421,6 @@ ret_t do_physdev_op(int cmd, XEN_GUEST_H case PHYSDEVOP_alloc_irq_vector: { struct physdev_irq irq_op; - unsigned long flags; ret = -EFAULT; if ( copy_from_guest(&irq_op, arg, 1) != 0 ) @@ -437,9 +441,9 @@ ret_t do_physdev_op(int cmd, XEN_GUEST_H irq_op.vector = assign_irq_vector(irq); - spin_lock_irqsave(&dom0->arch.irq_lock, flags); +...

...to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to utilize xen arch generic portion. - Next implements the xen instance of pv_ops introducing pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part, pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step. - Introduce xen machine vector to describe xen platform. By using machine vector, xen domU implementation can be simplified. - Lastly update Kconfig to allow paravirtualization support and xen domU support to compile. The working full source is available from h...

...to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to utilize xen arch generic portion. - Next implements the xen instance of pv_ops introducing pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part, pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step. - Introduce xen machine vector to describe xen platform. By using machine vector, xen domU implementation can be simplified. - Lastly update Kconfig to allow paravirtualization support and xen domU support to compile. The working full source is available from h...

...o hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to utilize xen arch generic portion. - Next implements the xen instance of pv_ops introducing pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part, pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step. - Introduce xen machine vector to describe xen platform. By using machine vector, xen domU implementation can be simplified. - Lastly update Kconfig to allow paravirtualization support and xen domU support to compile. The working full source is available from h...

...o hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to utilize xen arch generic portion. - Next implements the xen instance of pv_ops introducing pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part, pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step. - Introduce xen machine vector to describe xen platform. By using machine vector, xen domU implementation can be simplified. - Lastly update Kconfig to allow paravirtualization support and xen domU support to compile. The working full source is available from h...

...to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to utilize xen arch generic portion. - Next implements the xen instance of pv_ops introducing pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part, pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step. - Introduce xen machine vector to describe xen platform. By using machine vector, xen domU implementation can be simplified. - Lastly update Kconfig to allow paravirtualization support and xen domU support to compile. The working full source is available from h...

...to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to utilize xen arch generic portion. - Next implements the xen instance of pv_ops introducing pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part, pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step. - Introduce xen machine vector to describe xen platform. By using machine vector, xen domU implementation can be simplified. - Lastly update Kconfig to allow paravirtualization support and xen domU support to compile. The working full source is available from h...

...to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to utilize xen arch generic portion. - Next implements the xen instance of pv_ops introducing pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part, pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step. - Introduce xen machine vector to describe xen platform. By using machine vector, xen domU implementation can be simplified. - Lastly update Kconfig to allow paravirtualization support and xen domU support to compile. At this phase, we don't address the foll...

...to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to utilize xen arch generic portion. - Next implements the xen instance of pv_ops introducing pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part, pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step. - Introduce xen machine vector to describe xen platform. By using machine vector, xen domU implementation can be simplified. - Lastly update Kconfig to allow paravirtualization support and xen domU support to compile. At this phase, we don't address the foll...

...to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to utilize xen arch generic portion. - Next implements the xen instance of pv_ops introducing pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part, pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step. - Introduce xen machine vector to describe xen platform. By using machine vector, xen domU implementation can be simplified. - Lastly update Kconfig to allow paravirtualization support and xen domU support to compile. To compile, the changesets in x86/xen branch...

...to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to utilize xen arch generic portion. - Next implements the xen instance of pv_ops introducing pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part, pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step. - Introduce xen machine vector to describe xen platform. By using machine vector, xen domU implementation can be simplified. - Lastly update Kconfig to allow paravirtualization support and xen domU support to compile. To compile, the changesets in x86/xen branch...

...to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to utilize xen arch generic portion. - Next implements the xen instance of pv_ops introducing pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part, pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step. - Introduce xen machine vector to describe xen platform. By using machine vector, xen domU implementation can be simplified. - Lastly update Kconfig to allow paravirtualization support and xen domU support to compile. To compile, the changesets in x86/xen branch...

...to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to utilize xen arch generic portion. - Next implements the xen instance of pv_ops introducing pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part, pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step. - Introduce xen machine vector to describe xen platform. By using machine vector, xen domU implementation can be simplified. - Lastly update Kconfig to allow paravirtualization support and xen domU support to compile. To compile, the changesets in x86/xen branch...

...to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to utilize xen arch generic portion. - Next implements the xen instance of pv_ops introducing pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part, pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step. - Introduce xen machine vector to describe xen platform. By using machine vector, xen domU implementation can be simplified. - Lastly update Kconfig to allow paravirtualization support and xen domU support to compile. For convenience the working full source is...

...to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to utilize xen arch generic portion. - Next implements the xen instance of pv_ops introducing pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part, pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step. - Introduce xen machine vector to describe xen platform. By using machine vector, xen domU implementation can be simplified. - Lastly update Kconfig to allow paravirtualization support and xen domU support to compile. For convenience the working full source is...

...to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to utilize xen arch generic portion. - Next implements the xen instance of pv_ops introducing pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part, pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step. - Introduce xen machine vector to describe xen platform. By using machine vector, xen domU implementation can be simplified. - Lastly update Kconfig to allow paravirtualization support and xen domU support to compile. For convenience the working full source is...

...to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to utilize xen arch generic portion. - Next implements the xen instance of pv_ops introducing pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part, pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step. - Introduce xen machine vector to describe xen platform. By using machine vector, xen domU implementation can be simplified. - Lastly update Kconfig to allow paravirtualization support and xen domU support to compile. For convenience the working full source is...

Hi Ingo, Here''s the chunk of patches to add Xen Dom0 support (it''s probably worth creating a new xen/dom0 topic branch for it). A dom0 Xen domain is basically the same as a normal domU domain, but it has extra privileges to directly access hardware. There are two issues to deal with: - translating to and from the domain''s pseudo-physical addresses and real machine

...m Keith Owens idea. Probably after defining ABI because this is just optimization. - dom0 consider after finishing domU/ia64 merge. Changes from take 2: - many clean ups following to comments. - clean up:assembly instruction macro. - introduced pv_ops: pv_info, pv_init_ops, pv_iosapic_ops, pv_irq_ops. Changes from take 1: Single IVT source code. compile multitimes using assembler macros. thanks, Diffstat: arch/ia64/Kconfig | 72 +++ arch/ia64/kernel/Makefile | 30 +- arch/ia64/kernel/acpi.c | 4 + a...