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2012-11-30Merge branch 'arm-privcmd-for-3.8' of ↵Konrad Rzeszutek Wilk1-2/+6
git://xenbits.xen.org/people/ianc/linux into stable/for-linus-3.8 * 'arm-privcmd-for-3.8' of git://xenbits.xen.org/people/ianc/linux: xen: arm: implement remap interfaces needed for privcmd mappings. xen: correctly use xen_pfn_t in remap_domain_mfn_range. xen: arm: enable balloon driver xen: balloon: allow PVMMU interfaces to be compiled out xen: privcmd: support autotranslated physmap guests. xen: add pages parameter to xen_remap_domain_mfn_range Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-11-29xen: correctly use xen_pfn_t in remap_domain_mfn_range.Ian Campbell1-1/+2
For Xen on ARM a PFN is 64 bits so we need to use the appropriate type here. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [v2: include the necessary header, Reported-by: Fengguang Wu <fengguang.wu@intel.com> ]
2012-11-29xen: add pages parameter to xen_remap_domain_mfn_rangeIan Campbell1-1/+4
Also introduce xen_unmap_domain_mfn_range. These are the parts of Mukesh's "xen/pvh: Implement MMU changes for PVH" which are also needed as a baseline for ARM privcmd support. The original patch was: Signed-off-by: Mukesh Rathor <mukesh.rathor@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> This derivative is also: Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
2012-11-28xen/acpi: Move the xen_running_on_version_or_later function.Konrad Rzeszutek Wilk1-0/+1
As on ia64 builds we get: include/xen/interface/version.h: In function 'xen_running_on_version_or_later': include/xen/interface/version.h:76: error: implicit declaration of function 'HYPERVISOR_xen_version' We can later on make this function exportable if there are modules using part of it. For right now the only two users are built-in. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-03-28Disintegrate asm/system.h for IA64David Howells1-0/+1
Disintegrate asm/system.h for IA64. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Tony Luck <tony.luck@intel.com> cc: linux-ia64@vger.kernel.org
2011-02-25xen: suspend: add "arch" to pre/post suspend hooksIan Campbell1-3/+3
xen_pre_device_suspend is unused on ia64. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2010-10-20xen/privcmd: move remap_domain_mfn_range() to core xen code and export.Ian Campbell1-0/+5
This allows xenfs to be built as a module, previously it required flush_tlb_all and arbitrary_virt_to_machine to be exported. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2010-08-12Merge branch 'stable/xen-swiotlb-0.8.6' of ↵Linus Torvalds1-0/+6
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen * 'stable/xen-swiotlb-0.8.6' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: x86: Detect whether we should use Xen SWIOTLB. pci-swiotlb-xen: Add glue code to setup dma_ops utilizing xen_swiotlb_* functions. swiotlb-xen: SWIOTLB library for Xen PV guest with PCI passthrough. xen/mmu: inhibit vmap aliases rather than trying to clear them out vmap: add flag to allow lazy unmap to be disabled at runtime xen: Add xen_create_contiguous_region xen: Rename the balloon lock xen: Allow unprivileged Xen domains to create iomap pages xen: use _PAGE_IOMAP in ioremap to do machine mappings Fix up trivial conflicts (adding both xen swiotlb and xen pci platform driver setup close to each other) in drivers/xen/{Kconfig,Makefile} and include/xen/xen-ops.h
2010-07-22xen: Add suspend/resume support for PV on HVM guests.Stefano Stabellini1-0/+3
Suspend/resume requires few different things on HVM: the suspend hypercall is different; we don't need to save/restore memory related settings; except the shared info page and the callback mechanism. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2010-06-07xen: Add xen_create_contiguous_regionAlex Nixon1-0/+6
A memory region must be physically contiguous in order to be accessed through DMA. This patch adds xen_create_contiguous_region, which ensures a region of contiguous virtual memory is also physically contiguous. Based on Stephen Tweedie's port of the 2.6.18-xen version. Remove contiguous_bitmap[] as it's no longer needed. Ported from linux-2.6.18-xen.hg 707:e410857fd83c [ Impact: add Xen-internal API to make pages phys-contig ] Signed-off-by: Alex Nixon <alex.nixon@citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2008-07-16xen: add xen_arch_resume()/xen_timer_resume hook for ia64 supportIsaku Yamahata1-0/+3
add xen_timer_resume() hook. Timer resume should be done after event channel is resumed. add xen_arch_resume() hook when ipi becomes usable after resume. After resume, some cpu specific resource must be reinitialized on ia64 that can't be set by another cpu. However available hooks is run once on only one cpu so that ipi has to be used. During stop_machine_run() ipi can't be used because interrupt is masked. So add another hook after stop_machine_run(). Another approach might be use resume hook which is run by device_resume(). However device_resume() may be executed on suspend error recovery path. So it is necessary to determine whether it is executed on real resume path or error recovery path. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Cc: Stephen Tweedie <sct@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-27xen: maintain clock offset over save/restoreJeremy Fitzhardinge1-3/+0
Hook into the device model to make sure that timekeeping's resume handler is called. This deals with our clocksource's non-monotonicity over the save/restore. Explicitly call clock_has_changed() to make sure that all the timers get retriggered properly. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-27xen: implement save/restoreJeremy Fitzhardinge1-0/+9
This patch implements Xen save/restore and migration. Saving is triggered via xenbus, which is polled in drivers/xen/manage.c. When a suspend request comes in, the kernel prepares itself for saving by: 1 - Freeze all processes. This is primarily to prevent any partially-completed pagetable updates from confusing the suspend process. If CONFIG_PREEMPT isn't defined, then this isn't necessary. 2 - Suspend xenbus and other devices 3 - Stop_machine, to make sure all the other vcpus are quiescent. The Xen tools require the domain to run its save off vcpu0. 4 - Within the stop_machine state, it pins any unpinned pgds (under construction or destruction), performs canonicalizes various other pieces of state (mostly converting mfns to pfns), and finally 5 - Suspend the domain Restore reverses the steps used to save the domain, ending when all the frozen processes are thawed. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-24xen: move events.c to drivers/xen for IA64/Xen supportIsaku Yamahata1-0/+8
move arch/x86/xen/events.c undedr drivers/xen to share codes with x86 and ia64. And minor adjustment to compile. ia64/xen also uses events.c Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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