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When the initial domain starts, it prints (depending on the
amount of CPUs) a slew of
XENBUS: Unable to read cpu state
XENBUS: Unable to read cpu state
XENBUS: Unable to read cpu state
XENBUS: Unable to read cpu state
which provide no useful information - as the error is a valid
issue - but not on the initial domain. The reason is that the
XenStore is not accessible at that time (it is after all the
first guest) so the CPU hotplug watch cannot parse "availability/cpu"
attribute.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (109 commits)
PCI: fix coding style issue in pci_save_state()
PCI: add pci_request_acs
PCI: fix BUG_ON triggered by logical PCIe root port removal
PCI: remove ifdefed pci_cleanup_aer_correct_error_status
PCI: unconditionally clear AER uncorr status register during cleanup
x86/PCI: claim SR-IOV BARs in pcibios_allocate_resource
PCI: portdrv: remove redundant definitions
PCI: portdrv: remove unnecessary struct pcie_port_data
PCI: portdrv: minor cleanup for pcie_port_device_register
PCI: portdrv: add missing irq cleanup
PCI: portdrv: enable device before irq initialization
PCI: portdrv: cleanup service irqs initialization
PCI: portdrv: check capabilities first
PCI: portdrv: move PME capability check
PCI: portdrv: remove redundant pcie type calculation
PCI: portdrv: cleanup pcie_device registration
PCI: portdrv: remove redundant pcie_port_device_probe
PCI: Always set prefetchable base/limit upper32 registers
PCI: read-modify-write the pcie device control register when initiating pcie flr
PCI: show dma_mask bits in /sys
...
Fixed up conflicts in:
arch/x86/kernel/amd_iommu_init.c
drivers/pci/dmar.c
drivers/pci/hotplug/acpiphp_glue.c
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Move xen_domain and related tests out of asm-x86 to xen/xen.h so they
can be included whenever they are necessary.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
LKML-Reference: <200911031458.38406.rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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If a VM is booted with offline VCPUs then unplug them during boot. Determining
the availability of a VCPU requires access to XenStore which is not available
at the point smp_prepare_cpus() is called, therefore we bring up all VCPUS
initially and unplug the offline ones as soon as XenStore becomes available.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
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Impact: cleanup
In particular, *map are deprecated, and you have to use the accessors
as *mask are const.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
To: Jeremy Fitzhardinge <jeremy@xensource.com>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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xen_pv_domain()
Signed-off-by: Alex Nixon <alex.nixon@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Note the changes from 2.6.18-xen CPU hotplugging:
A vcpu_down request from the remote admin via Xenbus both hotunplugs the
CPU, and disables it by removing it from the cpu_present map, and removing
its entry in /sys.
A vcpu_up request from the remote admin only re-enables the CPU, and does
not immediately bring the CPU up. A udev event is emitted, which can be
caught by the user if he wishes to automatically re-up CPUs when available,
or implement a more complex policy.
Signed-off-by: Alex Nixon <alex.nixon@citrix.com>
Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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