Konrad Rzeszutek Wilk 6efa20e49b xen: Support 64-bit PV guest receiving NMIs ... This is based on a patch that Zhenzhong Duan had sent - which was missing some of the remaining pieces. The kernel has the logic to handle Xen-type-exceptions using the paravirt interface in the assembler code (see PARAVIRT_ADJUST_EXCEPTION_FRAME - pv_irq_ops.adjust_exception_frame and and INTERRUPT_RETURN - pv_cpu_ops.iret). That means the nmi handler (and other exception handlers) use the hypervisor iret. The other changes that would be neccessary for this would be to translate the NMI_VECTOR to one of the entries on the ipi_vector and make xen_send_IPI_mask_allbutself use different events. Fortunately for us commit 1db01b4903 (xen: Clean up apic ipi interface) implemented this and we piggyback on the cleanup such that the apic IPI interface will pass the right vector value for NMI. With this patch we can trigger NMIs within a PV guest (only tested x86_64). For this to work with normal PV guests (not initial domain) we need the domain to be able to use the APIC ops - they are already implemented to use the Xen event channels. For that to be turned on in a PV domU we need to remove the masking of X86_FEATURE_APIC. Incidentally that means kgdb will also now work within a PV guest without using the 'nokgdbroundup' workaround. Note that the 32-bit version is different and this patch does not enable that. CC: Lisa Nguyen <lisa@xenapiadmin.com> CC: Ben Guthro <benjamin.guthro@citrix.com> CC: Zhenzhong Duan <zhenzhong.duan@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [v1: Fixed up per David Vrabel comments] Reviewed-by: Ben Guthro <benjamin.guthro@citrix.com> Reviewed-by: David Vrabel <david.vrabel@citrix.com>		2013-08-09 10:55:47 -04:00
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hvm	Feature:	2012-10-12 22:20:28 +09:00
io	Merge branch 'for-3.11/drivers' of git://git.kernel.dk/linux-block	2013-07-22 19:02:52 -07:00
callback.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
elfnote.h	Fix common misspellings	2011-03-31 11:26:23 -03:00
event_channel.h	xen: Add EVTCHNOP_reset in Xen interface header files.	2012-12-17 21:58:05 -05:00
features.h	xen/arm: get privilege status	2012-08-08 17:20:18 +00:00
grant_table.h	xen: grant: use xen_pfn_t type for frame_list.	2012-10-19 15:17:55 -04:00
memory.h	xen: implement updated XENMEM_add_to_physmap_range ABI	2013-02-19 22:01:55 -05:00
physdev.h	xen-pciback: notify hypervisor about devices intended to be assigned to guests	2013-03-22 10:20:55 -04:00
platform.h	xen/acpi: ACPI cpu hotplug	2013-02-19 22:02:29 -05:00
sched.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
vcpu.h	xen: Support 64-bit PV guest receiving NMIs	2013-08-09 10:55:47 -04:00
version.h	xen/acpi: Move the xen_running_on_version_or_later function.	2012-11-28 14:39:31 -05:00
xen-mca.h	xen/mce: Add mcelog support for Xen platform	2012-07-19 15:51:36 -04:00
xen.h	xen: event channel arrays are xen_ulong_t and not unsigned long	2013-02-20 08:45:07 -05:00
xencomm.h	xen: import arch generic part of xencomm	2008-04-24 23:57:32 +02:00