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KVM: arm64: selftests: Add basic GICv3 support

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Add basic support for ARM Generic Interrupt Controller v3.
The support provides guests to setup interrupts.

The work is inspired from kvm-unit-tests and the kernel's
GIC driver (drivers/irqchip/irq-gic-v3.c).

Signed-off-by: Raghavendra Rao Ananta <rananta@google.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211007233439.1826892-13-rananta@google.com
This commit is contained in:
Raghavendra Rao Ananta
2021-10-07 23:34:36 +00:00
committed by Marc Zyngier
parent 414de89df1
commit 28281652f9
6 changed files with 448 additions and 1 deletions
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21
tools/testing/selftests/kvm/include/aarch64/gic.h Normal file
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/* SPDX-License-Identifier: GPL-2.0 */
/*
* ARM Generic Interrupt Controller (GIC) specific defines
*/
#ifndef SELFTEST_KVM_GIC_H
#define SELFTEST_KVM_GIC_H
enum gic_type {
GIC_V3,
GIC_TYPE_MAX,
};
void gic_init(enum gic_type type, unsigned int nr_cpus,
void *dist_base, void *redist_base);
void gic_irq_enable(unsigned int intid);
void gic_irq_disable(unsigned int intid);
unsigned int gic_get_and_ack_irq(void);
void gic_set_eoi(unsigned int intid);
#endif /* SELFTEST_KVM_GIC_H */