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2010-02-18xen: Remove unnecessary arch specific xen irq functions.Eric W. Biederman
Right now xen's use of the x86 and ia64 handle_irq is just bizarre and very fragile as it is very non-obvious the function exists and is is used by code out in drivers/.... Luckily using handle_irq is completely unnecessary, and we can just use the generic irq apis instead. This still leaves drivers/xen/events.c as a problematic user of the generic irq apis it has "static struct irq_info irq_info[NR_IRQS]" but that can be fixed some other time. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> LKML-Reference: <4B7CAAD2.10803@kernel.org> Acked-by: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Ian Campbell <Ian.Campbell@citrix.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-11-06ia64/xen: compilation fixIsaku Yamahata
This patch fixes the following compilation error introduced by a PCI related features. The change set of 5dd1af9f84c79bedd589db89e71ca733f3bf0ebd moves some xen related definitions from the arch header file (x86/include/asm/xen/hypervisor.h) to the common header file (include/xen/xen.h). So ia64/xen also follows it. In file included from linux-next/include/xen/grant_table.h:41, from linux-next/drivers/block/xen-blkfront.c:48: linux-next/arch/ia64/include/asm/xen/hypervisor.h:43: error: nested redefinition of 'enum xen_domain_type' linux-next/arch/ia64/include/asm/xen/hypervisor.h:43: error: redeclaration of 'enum xen_domain_type' linux-next/arch/ia64/include/asm/xen/hypervisor.h:44: error: redeclaration of enumerator 'XEN_NATIVE' linux-next/include/xen/xen.h:5: error: previous definition of 'XEN_NATIVE' was here linux-next/arch/ia64/include/asm/xen/hypervisor.h:45: error: redeclaration of enumerator 'XEN_PV_DOMAIN' linux-next/include/xen/xen.h:6: error: previous definition of 'XEN_PV_DOMAIN' was here linux-next/arch/ia64/include/asm/xen/hypervisor.h:46: error: redeclaration of enumerator 'XEN_HVM_DOMAIN' linux-next/include/xen/xen.h:7: error: previous definition of 'XEN_HVM_DOMAIN' was here Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-07-17Fix ia64 compilation IS_ERR and PTE_ERR errors.Fenghua Yu
When building ia64 kernel with CONFIG_XEN_SYS_HYPERVISOR, compiler reports errors: drivers/xen/sys-hypervisor.c: In function ‘uuid_show’: drivers/xen/sys-hypervisor.c:125: error: implicit declaration of function ‘IS_ERR’ drivers/xen/sys-hypervisor.c:126: error: implicit declaration of function ‘PTR_ERR’ This patch fixes the errors. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Acked-by: Isaku Yamahata <yamahata@valinux.co.jp>
2009-05-05[IA64] xen_domu_defconfig: fix build issues/warningsJan Beulich
- drivers/xen/events.c did not compile - xen_setup_hook caused a modpost section warning - the use of u64 (instead of unsigned long long) together with a %llu in drivers/xen/balloon.c caused a compiler warning Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2009-03-27ia64: remove some warnings.Isaku Yamahata
This patch removes the following warnings and related ones. Plus some cosmetics. arch/ia64/kernel/patch.c:112: warning: passing argument 1 of 'paravirt_fc' makes integer from pointer without a cast arch/ia64/kernel/patch.c:135: warning: passing argument 1 of 'paravirt_fc' makes integer from pointer without a cast arch/ia64/kernel/patch.c:166: warning: passing argument 1 of 'paravirt_fc' makes integer from pointer without a cast arch/ia64/kernel/patch.c:202: warning: passing argument 1 of 'paravirt_fc' makes integer from pointer without a cast arch/ia64/kernel/patch.c:220: warning: passing argument 1 of 'paravirt_fc' makes integer from pointer without a cast Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2009-03-26ia64/pv_ops/bp/xen: implemented binary patchable pv_cpu_ops.Isaku Yamahata
implemented xen binary patch for pv_cpu_ops. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2009-03-26ia64/pv_ops/xen/gate.S: xen gate page paravirtualizationIsaku Yamahata
xen gate page paravirtualization Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2009-03-26ia64/pv_ops/xen: define xen specific gate page.Isaku Yamahata
define xen specific gate page. At this phase bits in the gate page is same to native. At the next phase, it will be paravirtualized. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2009-03-26ia64/pv_ops/xen: paravirtualize read/write ar.itc and ar.itmIsaku Yamahata
paravirtualize ar.itc and ar.itm in order to support save/restore. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2009-03-26ia64/pv_ops/xen: preliminary to paravirtualizing fsys.S for xen.Isaku Yamahata
This is a preliminary patch to paravirtualizing fsys.S. compile fsys.S twice one for native and one for xen, and switch them at run tine. Later fsys.S will be paravirtualized. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2009-03-26ia64/xen: short-circuit tests for dom0Isaku Yamahata
This patch is ia64 counter part of clean up of the xen predicates. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-10-17ia64/pv_ops/xen: define the nubmer of irqs which xen needs.Isaku Yamahata
define arch/ia64/include/asm/xen/irq.h to define the number of irqs which xen needs. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-10-17ia64/pv_ops/xen: paravirtualize entry.S for ia64/xen.Isaku Yamahata
paravirtualize entry.S for ia64/xen by multi compile. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-10-17ia64/pv_ops/xen: paravirtualize ivt.S for xen.Isaku Yamahata
paravirtualize ivt.S for xen by multi compile. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-10-17ia64/pv_ops/xen: paravirtualize DO_SAVE_MIN for xen.Isaku Yamahata
paravirtualize DO_SAVE_MIN in minstate.h for xen. Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-10-17ia64/pv_ops/xen: define xen paravirtualized instructions for hand written ↵Isaku Yamahata
assembly code define xen paravirtualized instructions for hand written assembly code. Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Cc: Akio Takebe <takebe_akio@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-10-17ia64/pv_ops/xen: define xen pv_init_ops for various xen initialization.Isaku Yamahata
This patch implements xen version of pv_init_ops to do various xen initialization. This patch also includes ia64 counter part of x86 xen early printk support patches. Signed-off-by: Akio Takebe <takebe_akio@jp.fujitsu.com> Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-10-17ia64/xen: introduce helper function to identify domain mode.Isaku Yamahata
There are four operating modes Xen code may find itself running in: - native - hvm domain - pv dom0 - pv domU Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-10-17ia64/xen: add definitions necessary for xen event channel.Isaku Yamahata
Xen paravirtualizes interrupt as event channel. This patch defines arch specific part of xen event channel. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-10-17ia64/xen: implement arch specific part of xen grant table.Isaku Yamahata
Xen implements grant tables which is for sharing pages with guest domains. This patch implements arch specific part of grant table initialization. and xen_alloc_vm_area()/xen_free_vm_area() which are helper functions for xen grant table. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-10-17ia64/xen: xencomm conversion functions for hypercallsIsaku Yamahata
On ia64/xen, pointer arguments for hypercall is passed by pseudo physical address(guest physical address.) So such hypercalls needs address conversion functions. This patch implements concrete conversion functions for such hypercalls. Signed-off-by: Akio Takebe <takebe_akio@jp.fujitsu.com> Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-10-17ia64/xen: implement the arch specific part of xencomm.Isaku Yamahata
On ia64/xen, pointer argument for the hypercall is passed by pseudo physical address (guest physical address.) So it is necessary to convert virtual address into pseudo physical address right before issuing hypercall. The frame work is called xencomm. This patch implements arch specific part. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Cc: Akio Takebe <takebe_akio@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-10-17ia64/xen: define helper functions for xen hypercalls.Isaku Yamahata
introduce helper functions for xen hypercalls which traps to hypervisor. Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-10-17ia64/xen: define helper functions for xen related address conversion.Isaku Yamahata
Xen needs some address conversions between pseudo physical address (guest phsyical address), guest machine address (real machine address) and dma address. Define helper functions for those address conversion. Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-10-17ia64/xen: introduce definitions necessary for ia64/xen hypercalls.Isaku Yamahata
import arch/ia64/include/asm/xen/interface.h to introduce definitions necessary for ia64/xen hypercalls. They are basic structures to communicate with xen hypervisor and will be used later. Cc: Robin Holt <holt@sgi.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
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