https://github.com/torvalds/linux
Revision 0891fb39ba67bd7ae023ea0d367297ffff010781 authored by Juergen Gross on 30 September 2020, 09:16:14 UTC, committed by Juergen Gross on 01 October 2020, 12:45:26 UTC
Since commit c330fb1ddc0a ("XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information.")
Xen is using the chip_data pointer for storing IRQ specific data. When
running as a HVM domain this can result in problems for legacy IRQs, as
those might use chip_data for their own purposes.
Use a local array for this purpose in case of legacy IRQs, avoiding the
double use.
Cc: stable@vger.kernel.org
Fixes: c330fb1ddc0a ("XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information.")
Signed-off-by: Juergen Gross <jgross@suse.com>
Tested-by: Stefan Bader <stefan.bader@canonical.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20200930091614.13660-1-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
1 parent a1b8638
Tip revision: 0891fb39ba67bd7ae023ea0d367297ffff010781 authored by Juergen Gross on 30 September 2020, 09:16:14 UTC
xen/events: don't use chip_data for legacy IRQs
xen/events: don't use chip_data for legacy IRQs
Tip revision: 0891fb3
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