[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v8 19/27] ARM: vITS: handle MAPTI command
On 12/04/17 01:44, Andre Przywara wrote: +/* + * For a given virtual LPI read the enabled bit and priority from the virtual + * property table and update the virtual IRQ's state in the given pending_irq. + * Must be called with the respective VGIC VCPU lock held. + */ +static int update_lpi_property(struct domain *d, uint32_t vlpi, + struct pending_irq *p) Technically p->irq should be equal to the vlpi. If no, there is an issue somewhere else... +{ + paddr_t addr; + uint8_t property; + int ret; + + addr = d->arch.vgic.rdist_propbase & GENMASK(51, 12); + + ret = vgic_access_guest_memory(d, addr + vlpi - LPI_OFFSET, + &property, sizeof(property), false); + if ( ret ) + return ret; + + p->lpi_priority = property & LPI_PROP_PRIO_MASK; + if ( property & LPI_PROP_ENABLED ) + set_bit(GIC_IRQ_GUEST_ENABLED, &p->status); + else + clear_bit(GIC_IRQ_GUEST_ENABLED, &p->status); + + return 0; +} + -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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