x86/xen: Support early interrupts in xen pv guests

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Add early interrupt handlers activated by idt_setup_early_handler() to
the handlers supported by Xen pv guests. This will allow for early
WARN() calls not crashing the guest.

Suggested-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: xen-devel@lists.xenproject.org
Cc: boris.ostrovsky@oracle.com
Link: https://lkml.kernel.org/r/20171124084221.30172-1-jgross@suse.com

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Juergen Gross 2017-11-24 09:42:21 +01:00 • committed by Thomas Gleixner

parent 9d0b62328d

commit 42b3a4cb56

4 changed files with 53 additions and 14 deletions

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12

arch/x86/include/asm/segment.h

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4

arch/x86/mm/extable.c

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37

arch/x86/xen/enlighten_pv.c

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14

arch/x86/xen/xen-asm_64.S

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