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* xen64: implement failsafe callbackJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | Implement the failsafe callback, so that iret and segment register load exceptions are reported to the kernel. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* suspend, xen: enable PM_SLEEP for CONFIG_XENJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | Xen save/restore requires PM_SLEEP to be set without requiring SUSPEND or HIBERNATION. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen: make sure the kernel command line is rightJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | Point the boot params cmd_line_ptr to the domain-builder-provided command line. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen: rework pgd_walk to deal with 32/64 bitJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rewrite pgd_walk to deal with 64-bit address spaces. There are two notible features of 64-bit workspaces: 1. The physical address is only 48 bits wide, with the upper 16 bits being sign extension; kernel addresses are negative, and userspace is positive. 2. The Xen hypervisor mapping is at the negative-most address, just above the sign-extension hole. 1. means that we can't easily use addresses when traversing the space, since we must deal with sign extension. This rewrite expresses everything in terms of pgd/pud/pmd indices, which means we don't need to worry about the exact configuration of the virtual memory space. This approach works equally well in 32-bit. To deal with 2, assume the hole is between the uppermost userspace address and PAGE_OFFSET. For 64-bit this skips the Xen mapping hole. For 32-bit, the hole is zero-sized. In all cases, the uppermost kernel address is FIXADDR_TOP. A side-effect of this patch is that the upper boundary is actually handled properly, exposing a long-standing bug in 32-bit, which failed to pin kernel pmd page. The kernel pmd is not shared, and so must be explicitly pinned, even though the kernel ptes are shared and don't need pinning. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: implement xen_load_gs_index()Eduardo Habkost2008-07-16
| | | | | | | | | | xen-64: implement xen_load_gs_index() Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stephen Tweedie <sct@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Xen64: HYPERVISOR_set_segment_base() implementationEduardo Habkost2008-07-16
| | | | | | | | Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stephen Tweedie <sct@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* xen64: add identity irq->vector mapJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | | | | | | | | The x86_64 interrupt subsystem is oriented towards vectors, as opposed to a flat irq space as it is in x86-32. This patch adds a simple identity irq->vector mapping so that we can continue to feed irqs into do_IRQ() and get a good result. Ideally x86_32 will unify with the 64-bit code and use vectors too. At that point we can move to mapping event channels to vectors, which will allow us to economise on irqs (so per-cpu event channels can share irqs, rather than having to allocte one per cpu, for example). Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: register callbacks in arch-independent wayJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | | Use callback_op hypercall to register callbacks in a 32/64-bit independent way (64-bit doesn't need a code segment, but that detail is hidden in XEN_CALLBACK). Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: add pvop for swapgsJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | | | | swapgs is a no-op under Xen, because the hypervisor makes sure the right version of %gs is current when switching between user and kernel modes. This means that the swapgs "implementation" can be inlined and used when the stack is unsafe (usermode). Unfortunately, it means that disabling patching will result in a non-booting kernel... Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: deal with extra words Xen pushes onto exception framesJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | | | Xen pushes two extra words containing the values of rcx and r11. This pvop hook copies the words back into their appropriate registers, and cleans them off the stack. This leaves the stack in native form, so the normal handler can run unchanged. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: xen_write_idt_entry() and cvt_gate_to_trap()Eduardo Habkost2008-07-16
| | | | | | | | | | | Changed to use the (to-be-)unified descriptor structs. Signed-off-by: Eduardo Habkost <ehabkost@Rawhide-64.localdomain> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen: use set_pte_vaddrJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | | Make Xen's set_pte_mfn() use set_pte_vaddr rather than copying it. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Mark McLoughlin <markmc@redhat.com> 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>
* xen64: defer setting pagetable alloc/release opsJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | | | | | | | We need to wait until the page structure is available to use the proper pagetable page alloc/release operations, since they use struct page to determine if a pagetable is pinned. This happened to work in 32bit because nobody allocated new pagetable pages in the interim between xen_pagetable_setup_done and xen_post_allocator_init, but the 64-bit kenrel needs to allocate more pagetable levels. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen: set num_processorsJeremy Fitzhardinge2008-07-16
| | | | | | | | | | Someone's got to do it. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: use arbitrary_virt_to_machine for xen_set_pmdJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | | When building initial pagetables in 64-bit kernel the pud/pmd pointer may be in ioremap/fixmap space, so we need to walk the pagetable to look up the physical address. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen: fix truncation of machine addressJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | arbitrary_virt_to_machine can truncate a machine address if its above 4G. Cast the problem away. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen32: create initial mappings like 64-bitJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | | | | | | Rearrange the pagetable initialization to share code with the 64-bit kernel. Rather than deferring anything to pagetable_setup_start, just set up an initial pagetable in swapper_pg_dir early at startup, and create an additional 8MB of physical memory mappings. This matches the native head_32.S mappings to a large degree, and allows the rest of the pagetable setup to continue without much Xen vs. native difference. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: map an initial chunk of physical memoryJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | | Early in boot, map a chunk of extra physical memory for use later on. We need a pool of mapped pages to allocate further pages to construct pagetables mapping all physical memory. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: 64-bit starts using set_pte from very earlyJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | It also doesn't need the 32-bit hack version of set_pte for initial pagetable construction, so just make it use the real thing. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: early mapping setupJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | | Set up the initial pagetables to map the kernel mapping into the physical mapping space. This makes __va() usable, since it requires physical mappings. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: add hypervisor callbacks for events, etcJeremy Fitzhardinge2008-07-16
| | | | | | | | Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen: cpu_detect is 32-bit onlyJeremy Fitzhardinge2008-07-16
| | | | | | | | Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: use set_fixmap for shared_info structureJeremy Fitzhardinge2008-07-16
| | | | | | | | Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: add 64-bit assemblerJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | Split xen-asm into 32- and 64-bit files, and implement the 64-bit variants. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: add asm-offsetsJeremy Fitzhardinge2008-07-16
| | | | | | | | | | Add Xen vcpu_info offsets to asm-offsets_64. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: add xen-head code to head_64.SJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | Add the Xen entrypoint and ELF notes to head_64.S. Adapts xen-head.S to compile either 32-bit or 64-bit. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: smp.c compile hackingJeremy Fitzhardinge2008-07-16
| | | | | | | | | | A number of random changes to make xen/smp.c compile in 64-bit mode. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>a 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>
* x86_64: add workaround for no %gs-based percpuJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | | | | | | As a stopgap until Mike Travis's x86-64 gs-based percpu patches are ready, provide workaround functions for x86_read/write_percpu for Xen's use. Specifically, this means that we can't really make use of vcpu placement, because we can't use a single gs-based memory access to get to vcpu fields. So disable all that for now. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen: move smp setup into smp.cJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | Move all the smp_ops setup into smp.c, allowing a lot of things to become static. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: get active_mm from the pdaJeremy Fitzhardinge2008-07-16
| | | | | | | | | | x86_64 stores the active_mm in the pda, so fetch it from there. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: random ifdefs to mask out 32-bit only codeJeremy Fitzhardinge2008-07-16
| | | | | | | | Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: add extra pv_mmu_opsJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | We need extra pv_mmu_ops for 64-bit, to deal with the extra level of pagetable. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: fix calls into hypercall pageJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | | | | | | | | | | | The 64-bit calling convention for hypercalls uses different registers from 32-bit. Annoyingly, gcc's asm syntax doesn't have a way to specify one of the extra numeric reigisters in a constraint, so we must use explicitly placed register variables. Given that we have to do it for some args, may as well do it for all. Also fix syntax gcc generates for the call instruction itself. We need a plain direct call, but the asm expansion which works on 32-bit generates a rip-relative addressing mode in 64-bit, which is treated as an indirect call. The alternative is to pass the hypercall page offset into the asm, and have it add it to the hypercall page start address to generate the call. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen: fix 64-bit hypercall variantsJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | 64-bit guests can pass 64-bit quantities in a single argument, so fix up the hypercalls. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen: make ELF notes work for 32 and 64 bitJeremy Fitzhardinge2008-07-16
| | | | | | | | Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen64: define asm/xen/interface for 64-bitJeremy Fitzhardinge2008-07-16
| | | | | | | | | | Copy 64-bit definitions of various interface structures into place. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen: define set_pte from the outsetJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | We need set_pte to work from a relatively early point, so enable it from the start. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* xen: add xen_arch_resume()/xen_timer_resume hook for ia64 supportIsaku Yamahata2008-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* xen-netfront: fix xennet_release_tx_bufs()Isaku Yamahata2008-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After restore on ia64 xen domain, kernel panics as follows. This patch fixes it. union skb_entry assumes sizeof(link->skb, pointer) == sizeof(list->link, unsigned). However this isn't true on ia64. So make link type unsigned long. And introduced two accesor. kernel unaligned access to 0xe0000000000000bd, ip=0xa0000001004c2ca0 xenwatch[14]: error during unaligned kernel access -1 [1] Modules linked in: Pid: 14, CPU 0, comm: xenwatch psr : 0000101008422010 ifs : 8000000000000307 ip : [<a0000001004c2ca0>] Not tainted (2.6.26-rc4xen-ia64-dirty) ip is at dev_kfree_skb_irq+0x20/0x1a0 unat: 0000000000000000 pfs : 400000000000040b rsc : 0000000000000007 rnat: 0000000000000000 bsps: 0000000000000000 pr : 000000000000a941 ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c8a70433f csd : 0000000000000000 ssd : 0000000000000000 b0 : a0000001003efb70 b6 : a000000100070e40 b7 : a000000100070e40 f6 : 1003e000000fcb75352b1 f7 : 1003e000000000014ff97 f8 : 1003e00fcb74fc3454d80 f9 : 1003e0000000080000000 f10 : 1003e0000000000001431 f11 : 1003e0000000000989680 r1 : a000000100bfcf80 r2 : e0000000000000bd r3 : 000000000000308c r8 : 0000000000000000 r9 : e00000000fc31310 r10 : a000000100a13b28 r11 : 0000000000000000 r12 : e00000000fd0fdf0 r13 : e00000000fd08000 r14 : 0000000000000000 r15 : e00000000fcc8000 r16 : 0000000000000009 r17 : e000010000104000 r18 : e000010000104000 r19 : a000000100a13b40 r20 : a0000001009c23f0 r21 : a0000001009fd4d0 r22 : 0000000000004000 r23 : 0000000000000000 r24 : fffffffffff04c10 r25 : 0000000000000002 r26 : 0000000000000000 r27 : 0000000000000000 r28 : e00000000fd08bd4 r29 : a0000001007570b8 r30 : a0000001009e5500 r31 : a0000001009e54a0 Call Trace: [<a000000100026000>] show_stack+0x40/0xa0 sp=e00000000fd0f670 bsp=e00000000fd08f68 [<a000000100026a60>] show_regs+0x9a0/0x9e0 sp=e00000000fd0f840 bsp=e00000000fd08f10 [<a000000100037680>] die+0x260/0x3a0 sp=e00000000fd0f840 bsp=e00000000fd08ec8 [<a000000100037810>] die_if_kernel+0x50/0x80 sp=e00000000fd0f840 bsp=e00000000fd08e98 [<a00000010003eb40>] ia64_handle_unaligned+0x2ea0/0x2fc0 sp=e00000000fd0f840 bsp=e00000000fd08df0 [<a00000010001ca30>] ia64_prepare_handle_unaligned+0x30/0x60 sp=e00000000fd0fa10 bsp=e00000000fd08df0 [<a00000010005d100>] paravirt_leave_kernel+0x0/0x40 sp=e00000000fd0fc20 bsp=e00000000fd08df0 [<a0000001004c2ca0>] dev_kfree_skb_irq+0x20/0x1a0 sp=e00000000fd0fdf0 bsp=e00000000fd08db8 [<a0000001003efb70>] xennet_release_tx_bufs+0xd0/0x120 sp=e00000000fd0fdf0 bsp=e00000000fd08d78 [<a0000001003f14c0>] backend_changed+0xc40/0xf80 sp=e00000000fd0fdf0 bsp=e00000000fd08d08 [<a00000010034bd50>] otherend_changed+0x190/0x1c0 sp=e00000000fd0fe00 bsp=e00000000fd08cc8 [<a000000100349530>] xenwatch_thread+0x310/0x3c0 sp=e00000000fd0fe00 bsp=e00000000fd08ca0 [<a0000001000cb040>] kthread+0xe0/0x160 sp=e00000000fd0fe30 bsp=e00000000fd08c68 [<a000000100024450>] kernel_thread_helper+0x30/0x60 sp=e00000000fd0fe30 bsp=e00000000fd08c40 [<a00000010001a8a0>] start_kernel_thread+0x20/0x40 sp=e00000000fd0fe30 bsp=e00000000fd08c40 Kernel panic - not syncing: Aiee, killing interrupt handler! 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>
* xen: print backtrace on multicall failureJeremy Fitzhardinge2008-07-16
| | | | | | | | | | Print a backtrace if a multicall fails, to help with debugging. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* x86_64: unstatic get_local_pdaJeremy Fitzhardinge2008-07-16
| | | | | | | | | | This allows Xen's xen_cpu_up() to allocate a pda for the new CPU. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* x86_64: adjust exception frame in ia32entryJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | The 32-bit compat int $0x80 entrypoint needs exception frame adjustment. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* x86: use __page_aligned_data/bssJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | | Update arch/x86's use of page-aligned variables. The change to arch/x86/xen/mmu.c fixes an actual bug, but the rest are cleanups and to set a precedent. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* x86: clean up formatting of __switch_toJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | | | process_64.c:__switch_to has some very old strange formatting, some of it dating back to pre-git. Fix it up. No functional changes. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* x86_64: there's no need to preallocate level1_fixmap_pgtJeremy Fitzhardinge2008-07-16
| | | | | | | | | | | Early fixmap will allocate its own L1 pagetable page for fixmap mappings, so there's no need to preallocate one. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 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>
* pvops-64: call paravirt_post_allocator_init() on setup_arch()Eduardo Habkost2008-07-16
| | | | | | | | Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stephen Tweedie <sct@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86/paravirt: call paravirt_pagetable_setup_{start, done}Eduardo Habkost2008-07-16
| | | | | | | | | | | | Call paravirt_pagetable_setup_{start,done} These paravirt_ops functions were not being called on x86_64. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stephen Tweedie <sct@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge branch 'merge' of ↵Linus Torvalds2008-07-15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (249 commits) powerpc: Fix pte_update for CONFIG_PTE_64BIT and !PTE_ATOMIC_UPDATES powerpc: Fix a build problem on ppc32 with new DMA_ATTRs ibm_newemac: Add MII mode support to the EMAC RGMII bridge. powerpc: Don't spin on sync instruction at boot time powerpc: Add VSX load/store alignment exception handler powerpc: fix giveup_vsx to save registers correctly powerpc: support for latencytop powerpc: Remove unnecessary condition when sanity-checking WIMG bits powerpc: Add PPC_FEATURE_PSERIES_PERFMON_COMPAT powerpc: Add driver for Barrier Synchronization Register powerpc: mman.h export fixups powerpc/fsl: update crypto node definition and device tree instances powerpc/fsl: Refactor device bindings powerpc/85xx: Minor fixes for 85xxds and 8536ds board. powerpc: Add 82xx/83xx/86xx to 6xx Multiplatform powerpc/85xx: publish of device for cds platforms powerpc/booke: don't reinitialize time base powerpc/86xx: Refactor pic init powerpc/CPM: Add i2c pins to dts and board setup cpm_uart: Support uart_wait_until_sent() ...
| * Merge commit 'origin/master'Benjamin Herrenschmidt2008-07-15
| |\ | | | | | | | | | | | | | | | | | | | | | Manual merge of: arch/powerpc/Kconfig arch/powerpc/kernel/stacktrace.c arch/powerpc/mm/slice.c arch/ppc/kernel/smp.c
| * \ Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-buildBenjamin Herrenschmidt2008-07-15
| |\ \ | | | | | | | | | | | | | | | | Manual fixup of: arch/powerpc/Kconfig
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-26 19:06:58 -0500