search for: fixup_irq

irq: Exclude percpu IRQs from being fixed up Xen spin unlock uses spurious ipi "lock_kicker_irq" to wake up blocked vCPUs waiting on that lock. This irq should always be disabled. However, when Dom0 is shuting down, function fixup_irqs is called which unmasks all irqs. Function unmask_irq effectively re-enables lock_kicker_irq and its irq handler is invoked which reports bug and crashes Dom0. This patch sets IRQ_PER_CPU flag in irq desc and excludes percpu IRQs from being fixed up when taking CPUs down. Signed-off-by: Fengzhe...

...mu_shutdown_noop(void) { } +bool __init bool_x86_init_noop(void) { return false; } +void x86_op_int_noop(int cpu) { } /* * The platform setup functions are preset with the default functions @@ -81,6 +83,12 @@ struct x86_init_ops x86_init __initdata .init_irq = x86_default_pci_init_irq, .fixup_irqs = x86_default_pci_fixup_irqs, }, + + .hyper = { + .init_platform = x86_init_noop, + .x2apic_available = bool_x86_init_noop, + .init_mem_mapping = x86_init_noop, + }, }; struct x86_cpuinit_ops x86_cpuinit = { @@ -101,6 +109,7 @@ struct x86_platform_ops x86_platform __r .get_nmi_reason...

...id __init trap_init(void) { Index: clean-start/include/asm-x86_64/irq.h =================================================================== --- clean-start.orig/include/asm-x86_64/irq.h +++ clean-start/include/asm-x86_64/irq.h @@ -46,6 +46,9 @@ static __inline__ int irq_canonicalize(i extern void fixup_irqs(cpumask_t map); #endif +void init_IRQ(void); +void native_init_IRQ(void); + #define __ARCH_HAS_DO_SOFTIRQ 1 #endif /* _ASM_IRQ_H */ Index: clean-start/include/asm-x86_64/irqflags.h =================================================================== --- clean-start.orig/include/asm-x86_64/ir...

...id __init trap_init(void) { Index: clean-start/include/asm-x86_64/irq.h =================================================================== --- clean-start.orig/include/asm-x86_64/irq.h +++ clean-start/include/asm-x86_64/irq.h @@ -46,6 +46,9 @@ static __inline__ int irq_canonicalize(i extern void fixup_irqs(cpumask_t map); #endif +void init_IRQ(void); +void native_init_IRQ(void); + #define __ARCH_HAS_DO_SOFTIRQ 1 #endif /* _ASM_IRQ_H */ Index: clean-start/include/asm-x86_64/irqflags.h =================================================================== --- clean-start.orig/include/asm-x86_64/ir...

This patch implements cpu offline feature. Best Regards Haitao Shan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

This patch adds new control messages for vcpu hotplug events. Via the xm vcpu_hotplug sub-program, VCPUS in domains can be enabled/disabled when CONFIG_HOTPLUG_CPU is enabled in the target domain''s kernel. Currently there is nothing that tracks whether a VCPU is up or down. My previous [1]patch added a new per-VCPU flag (VCPUF_down) which could be used to keep track of which VCPUS are

Here is an slightly updated version of the paravirt_ops patch. If your comments and criticism were welcome before, now it's even more! There are some issues that are _not_ addressed in this revision, and here are the causes: * split debugreg into multiple functions, suggested by Andi: - Me and jsfg agree that introducing more pvops (specially 14!) is not worthwhile. So, although we do

Here is an slightly updated version of the paravirt_ops patch. If your comments and criticism were welcome before, now it's even more! There are some issues that are _not_ addressed in this revision, and here are the causes: * split debugreg into multiple functions, suggested by Andi: - Me and jsfg agree that introducing more pvops (specially 14!) is not worthwhile. So, although we do

Hey folks, Here's a new spin of the pvops64 patch series. We didn't get that many comments from the last time, so it should be probably almost ready to get in. Heya! >From the last version, the most notable changes are: * consolidation of system.h, merging jeremy's comments about ordering concerns * consolidation of smp functions that goes through smp_ops. They're sharing

Hey folks, Here's a new spin of the pvops64 patch series. We didn't get that many comments from the last time, so it should be probably almost ready to get in. Heya! >From the last version, the most notable changes are: * consolidation of system.h, merging jeremy's comments about ordering concerns * consolidation of smp functions that goes through smp_ops. They're sharing

This is hopefully the last iteration of the pvops64 patch. >From the last version, we have only one change, which is include/asm-x86_64/processor.h: There were still one survivor in raw asm. Also, git screwed me up for some reason, and the 25th patch was missing the new files, paravirt.{c,h}. (although I do remember having git-add'ed it, but who knows...) Andrew, could you please push it

This is hopefully the last iteration of the pvops64 patch. >From the last version, we have only one change, which is include/asm-x86_64/processor.h: There were still one survivor in raw asm. Also, git screwed me up for some reason, and the 25th patch was missing the new files, paravirt.{c,h}. (although I do remember having git-add'ed it, but who knows...) Andrew, could you please push it

Hi folks, After some time away from it, and a big rebase as a consequence, here is the updated version of paravirt_ops for x86_64, heading to inclusion. Your criticism is of course, very welcome. Have fun -- arch/x86_64/Kconfig | 11 arch/x86_64/ia32/syscall32.c | 2 arch/x86_64/kernel/Makefile | 1 arch/x86_64/kernel/apic.c | 2

Hi folks, After some time away from it, and a big rebase as a consequence, here is the updated version of paravirt_ops for x86_64, heading to inclusion. Your criticism is of course, very welcome. Have fun -- arch/x86_64/Kconfig | 11 arch/x86_64/ia32/syscall32.c | 2 arch/x86_64/kernel/Makefile | 1 arch/x86_64/kernel/apic.c | 2

Booting a Xen PVH guest requires a special boot entry as it is mandatory to setup some Xen-specific interfaces rather early. When grub or OVMF are used as boot loaders, however, those will fill the boot parameters in zeropage and there is no longer a need to do something PVH specific in the early boot path. This patch series adds support for that scenario by identifying PVH environment and doing

Booting a Xen PVH guest requires a special boot entry as it is mandatory to setup some Xen-specific interfaces rather early. When grub or OVMF are used as boot loaders, however, those will fill the boot parameters in zeropage and there is no longer a need to do something PVH specific in the early boot path. This patch series adds support for that scenario by identifying PVH environment and doing

...#endif Index: linux-2.6.19-quilt/include/asm-x86_64/irq.h =================================================================== --- linux-2.6.19-quilt.orig/include/asm-x86_64/irq.h +++ linux-2.6.19-quilt/include/asm-x86_64/irq.h @@ -46,6 +46,9 @@ static __inline__ int irq_canonicalize(i extern void fixup_irqs(cpumask_t map); #endif +void init_IRQ(void); +void native_init_IRQ(void); + #define __ARCH_HAS_DO_SOFTIRQ 1 #endif /* _ASM_IRQ_H */ Index: linux-2.6.19-quilt/include/asm-x86_64/mmu_context.h =================================================================== --- linux-2.6.19-quilt.orig/incl...

...#endif Index: linux-2.6.19-quilt/include/asm-x86_64/irq.h =================================================================== --- linux-2.6.19-quilt.orig/include/asm-x86_64/irq.h +++ linux-2.6.19-quilt/include/asm-x86_64/irq.h @@ -46,6 +46,9 @@ static __inline__ int irq_canonicalize(i extern void fixup_irqs(cpumask_t map); #endif +void init_IRQ(void); +void native_init_IRQ(void); + #define __ARCH_HAS_DO_SOFTIRQ 1 #endif /* _ASM_IRQ_H */ Index: linux-2.6.19-quilt/include/asm-x86_64/mmu_context.h =================================================================== --- linux-2.6.19-quilt.orig/incl...

The following patches introduce the core infrastructure needed to paravirtualize the 32-bit x86 Linux kernel. This is done by moving virtualization sensitive insn's or code paths to a function table, paravirt_ops. This structure can be populated with hypervisor specific calls or native stubs and currently support running on bare metal, VMI, Xen, or Lhype. These patches apply to

The following patches introduce the core infrastructure needed to paravirtualize the 32-bit x86 Linux kernel. This is done by moving virtualization sensitive insn's or code paths to a function table, paravirt_ops. This structure can be populated with hypervisor specific calls or native stubs and currently support running on bare metal, VMI, Xen, or Lhype. These patches apply to