- 23 2月, 2009 1 次提交
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由 Rafael J. Wysocki 提交于
Move the sysdev_suspend/resume from the callee to the callers, with no real change in semantics, so that we can rework the disabling of interrupts during suspend/hibernation. This is based on an earlier patch from Linus. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 09 2月, 2009 6 次提交
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由 Ian Campbell 提交于
I was seeing a very odd crash on 64 bit in bind_evtchn_to_cpu because cpu_from_irq(irq) was coming out as -1. I found this was coming direct from the mk_ipi_info call. It's not clear to me that this isn't a compiler bug (implicit initialisation to zero of unsigned shorts in a struct not handled correctly?). On the other hand is it true that all event channels start of bound to CPU 0? If not then -1 might be correct and the various other functions should cope with this. Signed-off-by: NIan Campbell <Ian.Campbell@eu.citrix.com> Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jeremy Fitzhardinge 提交于
Make sure that irq_enter()/irq_exit() wrap the entire event processing loop, rather than each individual event invokation. This makes sure that softirq processing is deferred until the end of event processing, rather than in the middle with interrupts disabled. Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jeremy Fitzhardinge 提交于
There should be no need for us to maintain our own bind count for irqs, since the surrounding irq system should keep track of shared irqs for us. Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jeremy Fitzhardinge 提交于
Put all irq info into one struct. Also, use a union to keep event channel type-specific information, rather than overloading the index field. Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jeremy Fitzhardinge 提交于
Rather than overloading vectors for event channels, take full responsibility for mapping an event channel to irq directly. With this patch Xen has its own irq allocator. When the kernel gets an event channel upcall, it maps the event channel number to an irq and injects it into the normal interrupt path. Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jeremy Fitzhardinge 提交于
By default, the irq_chip.disable operation is a no-op. Explicitly set it to disable the Xen event channel. Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 29 1月, 2009 1 次提交
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由 Jeremy Fitzhardinge 提交于
1: make "target_kb" only accept and produce a memory size in kilobytes. 2: add a second "target" file which produces output in bytes, and will accept memparse input (scaled bytes) This fixes the rather irritating problem that writing the same value read back into target_kb would end up shrinking the domain by a factor of 1024, with generally bad results. Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stable Kernel <stable@kernel.org> Cc: "dan.magenheimer@oracle.com" <dan.magenheimer@oracle.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 26 1月, 2009 1 次提交
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由 Ian Campbell 提交于
The return value of xenbus_write_transaction can be uninitialised in the success case leading to the userspace xenstore utilities failing. Signed-off-by: NIan Campbell <ian.campbell@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 24 1月, 2009 1 次提交
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由 Ian Campbell 提交于
Commit 1058a75f ("xen: actually release memory when shrinking domain") causes a crash if the page being released is a highmem page. If a page is highmem then there is no need to unmap it. Signed-off-by: NIan Campbell <ian.campbell@citrix.com> Acked-by: NJeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 23 1月, 2009 1 次提交
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由 Dan Magenheimer 提交于
Fix this: > It appears that in the upstream balloon driver, > the call to HYPERVISOR_update_va_mapping is missing > from decrease_reservation. I think as a result, > the balloon driver is eating memory but not > releasing it to Xen, thus rendering the balloon > driver essentially useless. (Can be observed via xentop.) Signed-off-by: NDan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 12 1月, 2009 4 次提交
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由 Christophe Saout 提交于
Impact: fix bootup crash on xen guests SLAB is not yet up, with earlyprintk it is giving me an Oops in __kmalloc. Replace call to kmalloc() with alloc_bootmem(). Reported-by: NChristophe Saout <christophe@saout.de> Signed-off-by: NMike Travis <travis@sgi.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Mike Travis 提交于
Impact: reduce memory usage. Reduce this significant gain in the amount of memory used when NR_CPUS bumped from 128 to 4096 by allocating the array based on nr_cpu_ids: 65536 +2031616 2097152 +3100% cpu_evtchn_mask(.bss) Signed-off-by: NMike Travis <travis@sgi.com> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Chris Wright <chrisw@sous-sol.org> Cc: virtualization@lists.osdl.org Cc: xen-devel@lists.xensource.com
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由 Rusty Russell 提交于
Impact: use new cpumask API. Convert misc driver functions to use struct cpumask. To Do: - Convert iucv_buffer_cpumask to cpumask_var_t. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NMike Travis <travis@sgi.com> Acked-by: NDean Nelson <dcn@sgi.com> Cc: Robert Richter <robert.richter@amd.com> Cc: oprofile-list@lists.sf.net Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Chris Wright <chrisw@sous-sol.org> Cc: virtualization@lists.osdl.org Cc: xen-devel@lists.xensource.com Cc: Ursula Braun <ursula.braun@de.ibm.com> Cc: linux390@de.ibm.com Cc: linux-s390@vger.kernel.org
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由 Mike Travis 提交于
Impact: reduce memory usage, use new cpumask API. Replace the affinity and pending_masks with cpumask_var_t's. This adds to the significant size reduction done with the SPARSE_IRQS changes. The added functions (init_alloc_desc_masks & init_copy_desc_masks) are in the include file so they can be inlined (and optimized out for the !CONFIG_CPUMASKS_OFFSTACK case.) [Naming chosen to be consistent with the other init*irq functions, as well as the backwards arg declaration of "from, to" instead of the more common "to, from" standard.] Includes a slight change to the declaration of struct irq_desc to embed the pending_mask within ifdef(CONFIG_SMP) to be consistent with other references, and some small changes to Xen. Tested: sparse/non-sparse/cpumask_offstack/non-cpumask_offstack/nonuma/nosmp on x86_64 Signed-off-by: NMike Travis <travis@sgi.com> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Cc: virtualization@lists.osdl.org Cc: xen-devel@lists.xensource.com Cc: Yinghai Lu <yhlu.kernel@gmail.com>
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- 09 1月, 2009 2 次提交
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由 Alex Zeffertt 提交于
The xenfs filesystem exports various interfaces to usermode. Initially this exports a file to allow usermode to interact with xenbus/xenstore. Traditionally this appeared in /proc/xen. Rather than extending procfs, this patch adds a backward-compat mountpoint on /proc/xen, and provides a xenfs filesystem which can be mounted there. Signed-off-by: NAlex Zeffertt <alex.zeffertt@eu.citrix.com> Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Qinghuang Feng 提交于
no argument named @xbt in xenbus_switch_state(), remove it. Signed-off-by: NQinghuang Feng <qhfeng.kernel@gmail.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 07 1月, 2009 1 次提交
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由 Kay Sievers 提交于
CC: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 26 12月, 2008 1 次提交
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由 KOSAKI Motohiro 提交于
Impact: cleanup all for_each_irq_desc() usage point have !desc check. then its check can move into for_each_irq_desc() macro. Signed-off-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: NYinghai Lu <yinghai@kernel.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 18 12月, 2008 1 次提交
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由 Jeremy Fitzhardinge 提交于
Impact: fix crash Make sure all Xen irqs have an irq_desc. Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 17 12月, 2008 1 次提交
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由 Jeremy Fitzhardinge 提交于
Impact: cleanup hypervisor.h had accumulated a lot of crud, including lots of spurious #includes. Clean it all up, and go around fixing up everything else accordingly. Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 13 12月, 2008 1 次提交
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由 Rusty Russell 提交于
Impact: change existing irq_chip API Not much point with gentle transition here: the struct irq_chip's setaffinity method signature needs to change. Fortunately, not widely used code, but hits a few architectures. Note: In irq_select_affinity() I save a temporary in by mangling irq_desc[irq].affinity directly. Ingo, does this break anything? (Folded in fix from KOSAKI Motohiro) Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NMike Travis <travis@sgi.com> Reviewed-by: NGrant Grundler <grundler@parisc-linux.org> Acked-by: NIngo Molnar <mingo@redhat.com> Cc: ralf@linux-mips.org Cc: grundler@parisc-linux.org Cc: jeremy@xensource.com Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
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- 08 12月, 2008 1 次提交
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由 Yinghai Lu 提交于
Impact: new feature Problem on distro kernels: irq_desc[NR_IRQS] takes megabytes of RAM with NR_CPUS set to large values. The goal is to be able to scale up to much larger NR_IRQS value without impacting the (important) common case. To solve this, we generalize irq_desc[NR_IRQS] to an (optional) array of irq_desc pointers. When CONFIG_SPARSE_IRQ=y is used, we use kzalloc_node to get irq_desc, this also makes the IRQ descriptors NUMA-local (to the site that calls request_irq()). This gets rid of the irq_cfg[] static array on x86 as well: irq_cfg now uses desc->chip_data for x86 to store irq_cfg. Signed-off-by: NYinghai Lu <yinghai@kernel.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 18 11月, 2008 1 次提交
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由 Jeremy Fitzhardinge 提交于
Impact: fix guest kernel crash with CONFIG_XEN_SCRUB_PAGES=y Jens noticed that scrub_page() has a buggy unmap of the wrong thing. (virtual address instead of page) Linus pointed out that the whole scrub_page() code is an unnecessary reimplementation of clear_highpage() to begin with. Just use clear_highpage() rather than reimplementing it poorly. Reported-by: NJens Axboe <jens.axboe@oracle.com> Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 05 11月, 2008 1 次提交
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由 Jianjun Kong 提交于
Signed-off-by: NJianjun Kong <jianjun@zeuux.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 24 10月, 2008 3 次提交
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由 Isaku Yamahata 提交于
use set_xen_guest_handle() instead of direct assigning. > linux-2.6/drivers/xen/events.c: In function 'xen_poll_irq': > linux-2.6/drivers/xen/events.c:757: error: incompatible types in assignment > make[4]: *** [drivers/xen/events.o] Error 1 Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Isaku Yamahata 提交于
clean up of xencomm.c. is_phys_contiguous() is arch dependent function that depends on how virtual memory are laid out. So split out the function into arch specific code. Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu> Cc: "Luck, Tony" <tony.luck@intel.com>
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由 Jeremy Fitzhardinge 提交于
It isn't necessary, and it makes the code needlessly non-portable. Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 23 10月, 2008 1 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
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- 22 10月, 2008 4 次提交
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由 Isaku Yamahata 提交于
use set_xen_guest_handle() instead of direct assigning. > linux-2.6/drivers/xen/events.c: In function 'xen_poll_irq': > linux-2.6/drivers/xen/events.c:757: error: incompatible types in assignment > make[4]: *** [drivers/xen/events.o] Error 1 Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Isaku Yamahata 提交于
This patch fixes compilation error on ia64. include asm/xen/hypervisor.h instead of asm-x86/xen/hypervisor.h use xen_pv_domain() instead of is_running_on_xen() > CC drivers/xen/cpu_hotplug.o > In file included from /linux-2.6/drivers/xen/cpu_hotplug.c:5: > /linux-2.6/include/asm-x86/xen/hypervisor.h:44:22: error: asm/desc.h: No such file or directory > /linux-2.6/include/asm-x86/xen/hypervisor.h:66:1: warning: "MULTI_UVMFLAGS_INDEX" redefined > In file included from /linux-2.6/include/asm-x86/xen/hypervisor.h:52, > from /linux-2.6/drivers/xen/cpu_hotplug.c:5: > /linux-2.6/arch/ia64/include/asm/xen/hypercall.h:233:1: warning: this is the location of the previous definition > /linux-2.6/drivers/xen/cpu_hotplug.c: In function 'setup_vcpu_hotplug_event': > /linux-2.6/drivers/xen/cpu_hotplug.c:81: error: implicit declaration of function 'is_running_on_xen' > make[4]: *** [drivers/xen/cpu_hotplug.o] Error 1 > make[4]: *** Waiting for unfinished jobs.... Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Isaku Yamahata 提交于
clean up of xencomm.c. is_phys_contiguous() is arch dependent function that depends on how virtual memory are laid out. So split out the function into arch specific code. Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu> Cc: "Luck, Tony" <tony.luck@intel.com>
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由 Jeremy Fitzhardinge 提交于
It isn't necessary, and it makes the code needlessly non-portable. Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 16 10月, 2008 4 次提交
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由 Thomas Gleixner 提交于
Use for_each_irq_desc[_reverse] for all the iteration loops. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Alex Nixon 提交于
When sparse IRQs are enabled, it is not safe to assume an IRQ descriptor exists for every possible IRQ. This patch causes init_evtchn_cpu_bindings to skip initialisation of IRQ descriptors which don't exist. Signed-off-by: NAlex Nixon <alex.nixon@citrix.com> Acked-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Yinghai Lu 提交于
add CONFIG_HAVE_SPARSE_IRQ to for use condensed array. Get rid of irq_desc[] array assumptions. Preallocate 32 irq_desc, and irq_desc() will try to get more. ( No change in functionality is expected anywhere, except the odd build failure where we missed a code site or where a crossing commit itroduces new irq_desc[] usage. ) v2: according to Eric, change get_irq_desc() to irq_desc() Signed-off-by: NYinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Yinghai Lu 提交于
Signed-off-by: NYinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 03 10月, 2008 1 次提交
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由 Jeremy Fitzhardinge 提交于
The balloon driver doesn't have any externally callable functions at the moment, so remove the (effectively empty) header. We can add it back if we need to. Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 09 9月, 2008 1 次提交
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由 Jeremy Fitzhardinge 提交于
Set the class so it doesn't clash with the normal memory class. Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu> ===================================================================
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- 05 9月, 2008 1 次提交
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由 Alex Nixon 提交于
Compile cpu_hotplug.c conditionally on CONFIG_HOTPLUG_CPU Signed-off-by: NAlex Nixon <alex.nixon@citrix.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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