x86/xen: Split HVM vector callback setup and interrupt gate allocation

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As a preparatory change for making alloc_intr_gate() __init split
xen_callback_vector() into callback vector setup via hypercall
(xen_setup_callback_vector()) and interrupt gate allocation
(xen_alloc_callback_vector()).

xen_setup_callback_vector() is being called twice: on init and upon
system resume from xen_hvm_post_suspend(). alloc_intr_gate() only
needs to be called once.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200428093824.1451532-2-vkuznets@redhat.com

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Vitaly Kuznetsov 2020-04-28 11:38:22 +02:00 • committed by Thomas Gleixner

parent fbaed278a3

commit a0bb51f263

3 changed files with 19 additions and 13 deletions

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2

arch/x86/xen/suspend_hvm.c

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2

arch/x86/xen/xen-ops.h

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28

drivers/xen/events/events_base.c

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