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xen: remap GSIs as pirqs when running as initial domain

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Implement xen_register_gsi to setup the correct triggering and polarity
properties of a gsi.
Implement xen_register_pirq to register a particular gsi as pirq and
receive interrupts as events.
Call xen_setup_pirqs to register all the legacy ISA irqs as pirqs.

Signed-off-by: Jeremy Fitzhardinge <[email protected]>
Signed-off-by: Stefano Stabellini <[email protected]>
Reviewed-by: Konrad Rzeszutek Wilk <[email protected]>
This commit is contained in:
Jeremy Fitzhardinge 2010-09-02 14:51:39 +01:00 • committed by Stefano Stabellini
commit 38aa66fcb7
4 changed files with 165 additions and 0 deletions
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10
include/xen/interface/physdev.h
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@ -151,6 +151,16 @@ struct physdev_op {
} u;
};
#define PHYSDEVOP_setup_gsi 21
struct physdev_setup_gsi {
int gsi;
/* IN */
uint8_t triggering;
/* IN */
uint8_t polarity;
/* IN */
};
#define PHYSDEVOP_get_nr_pirqs 22
struct physdev_nr_pirqs {
/* OUT */