From 1e575b66643a4311b9a6cbf0744f7f5aeba5e181 Mon Sep 17 00:00:00 2001 From: Eric Auger Date: Fri, 22 Jun 2018 13:28:36 +0100 Subject: hw/intc/arm_gicv3: Introduce redist-region-count array property To prepare for multiple redistributor regions, we introduce an array of uint32_t properties that stores the redistributor count of each redistributor region. Non accelerated VGICv3 only supports a single redistributor region. The capacity of all redist regions is checked against the number of vcpus. Machvirt is updated to set those properties, ie. a single redistributor region with count set to the number of vcpus capped by 123. Signed-off-by: Eric Auger Reviewed-by: Andrew Jones Message-id: 1529072910-16156-4-git-send-email-eric.auger@redhat.com Signed-off-by: Peter Maydell --- hw/arm/virt.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'hw/arm/virt.c') diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 98b99cf..de189c7 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -523,6 +523,15 @@ static void create_gic(VirtMachineState *vms, qemu_irq *pic) if (!kvm_irqchip_in_kernel()) { qdev_prop_set_bit(gicdev, "has-security-extensions", vms->secure); } + + if (type == 3) { + uint32_t redist0_capacity = + vms->memmap[VIRT_GIC_REDIST].size / GICV3_REDIST_SIZE; + uint32_t redist0_count = MIN(smp_cpus, redist0_capacity); + + qdev_prop_set_uint32(gicdev, "len-redist-region-count", 1); + qdev_prop_set_uint32(gicdev, "redist-region-count[0]", redist0_count); + } qdev_init_nofail(gicdev); gicbusdev = SYS_BUS_DEVICE(gicdev); sysbus_mmio_map(gicbusdev, 0, vms->memmap[VIRT_GIC_DIST].base); @@ -1322,7 +1331,7 @@ static void machvirt_init(MachineState *machine) * many redistributors we can fit into the memory map. */ if (vms->gic_version == 3) { - virt_max_cpus = vms->memmap[VIRT_GIC_REDIST].size / 0x20000; + virt_max_cpus = vms->memmap[VIRT_GIC_REDIST].size / GICV3_REDIST_SIZE; } else { virt_max_cpus = GIC_NCPU; } -- cgit v1.1