Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
irqchip/gic-v4: Add VLPI configuration interface
Add the required interfaces to map, unmap and update a VLPI.
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
+42
drivers/irqchip/irq-gic-v4.c
+42
drivers/irqchip/irq-gic-v4.c
···
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return its_send_vpe_cmd(vpe, &info);
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}
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+
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int its_map_vlpi(int irq, struct its_vlpi_map *map)
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{
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struct its_cmd_info info = {
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.cmd_type = MAP_VLPI,
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.map = map,
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};
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+
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/*
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* The host will never see that interrupt firing again, so it
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* is vital that we don't do any lazy masking.
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*/
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irq_set_status_flags(irq, IRQ_DISABLE_UNLAZY);
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+
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return irq_set_vcpu_affinity(irq, &info);
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}
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int its_get_vlpi(int irq, struct its_vlpi_map *map)
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{
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struct its_cmd_info info = {
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.cmd_type = GET_VLPI,
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.map = map,
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};
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return irq_set_vcpu_affinity(irq, &info);
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}
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int its_unmap_vlpi(int irq)
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{
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irq_clear_status_flags(irq, IRQ_DISABLE_UNLAZY);
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return irq_set_vcpu_affinity(irq, NULL);
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}
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+
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int its_prop_update_vlpi(int irq, u8 config, bool inv)
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{
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struct its_cmd_info info = {
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.cmd_type = inv ? PROP_UPDATE_AND_INV_VLPI : PROP_UPDATE_VLPI,
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.config = config,
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};
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+
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return irq_set_vcpu_affinity(irq, &info);
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}
+4
include/linux/irqchip/arm-gic-v4.h
+4
include/linux/irqchip/arm-gic-v4.h
···
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void its_free_vcpu_irqs(struct its_vm *vm);
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int its_schedule_vpe(struct its_vpe *vpe, bool on);
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int its_invall_vpe(struct its_vpe *vpe);
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+
int its_map_vlpi(int irq, struct its_vlpi_map *map);
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int its_get_vlpi(int irq, struct its_vlpi_map *map);
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int its_unmap_vlpi(int irq);
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int its_prop_update_vlpi(int irq, u8 config, bool inv);
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#endif