I've finally solved the problem. Although i still can't make the second inmate output to UART0 (just outputs to UART1), the UART1 doesn't freeze no more when i issue "cell create non-root cell".
I'll tell the steps i took to make this happen (warning: i don't know if each of these steps is really necessary to solve this problem): 1) The first thing i did was to make my own FPGA design, by routing the 2 PS UARTs to the low speed headers. I removed the FPGA UARTs that came with Ultra96 BSP. 2) The second step was to deattach the UART0 from bluetooth drive in system-user.dtsi file (sent in attachment) by removing the bluetooth node. 3) Then, i've changed the pin_bitmap of irqchips field to the UART0's interrupt. ( 1 << (53 - 32) ) I've noticed that i could change the uart and console field to UART0 that it would still be freezing. Only when i changed the pin bitmap to UART0 interrupt, it would not freeze (i suppose that the change of interrupt means that the 2 UARTs do not collide in terms of input). -- You received this message because you are subscribed to the Google Groups "Jailhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
system-user.dtsi
Description: Binary data
/* * Jailhouse, a Linux-based partitioning hypervisor * * Configuration for linux-demo inmate on Avnet Ultra96 board: * 2 CPUs, 128M RAM, serial port 2 * * Copyright (c) Siemens AG, 2014-2019 * * Authors: * Jan Kiszka <[email protected]> * * This work is licensed under the terms of the GNU GPL, version 2. See * the COPYING file in the top-level directory. */ #include <jailhouse/types.h> #include <jailhouse/cell-config.h> #define ARRAY_SIZE(a) sizeof(a) / sizeof(a[0]) struct { struct jailhouse_cell_desc cell; __u64 cpus[1]; struct jailhouse_memory mem_regions[5]; struct jailhouse_irqchip irqchips[1]; struct jailhouse_pci_device pci_devices[1]; } __attribute__((packed)) config = { .cell = { .signature = JAILHOUSE_CELL_DESC_SIGNATURE, .revision = JAILHOUSE_CONFIG_REVISION, .name = "Ultra96-linux-demo", .flags = JAILHOUSE_CELL_PASSIVE_COMMREG | JAILHOUSE_CELL_VIRTUAL_CONSOLE_ACTIVE, .cpu_set_size = sizeof(config.cpus), .num_memory_regions = ARRAY_SIZE(config.mem_regions), .num_irqchips = ARRAY_SIZE(config.irqchips), .num_pci_devices = ARRAY_SIZE(config.pci_devices), .vpci_irq_base = 140-32, .console = { .address = 0xff010000, /*UART1*/ //.address = 0xff000000, /*UART0*/ .type= JAILHOUSE_CON_TYPE_XUARTPS, .flags = JAILHOUSE_CON_ACCESS_MMIO | JAILHOUSE_CON_REGDIST_4, }, }, .cpus = { 0xc, }, .mem_regions = { /* UART */ { .phys_start = 0xff010000, .virt_start = 0xff010000, /*.phys_start = 0xff000000, .virt_start = 0xff000000,*/ .size = 0x1000, .flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE | JAILHOUSE_MEM_IO | JAILHOUSE_MEM_ROOTSHARED, }, /* RAM */ { .phys_start = 0x7bef0000, .virt_start = 0, .size = 0x10000, .flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE | JAILHOUSE_MEM_EXECUTE | JAILHOUSE_MEM_LOADABLE, }, /* RAM */ { .phys_start = 0x74000000, .virt_start = 0x74000000, .size = 0x7ef0000, .flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE | JAILHOUSE_MEM_EXECUTE | JAILHOUSE_MEM_DMA | JAILHOUSE_MEM_LOADABLE, }, /* IVSHMEM shared memory region */ { .phys_start = 0x7bf00000, .virt_start = 0x7bf00000, .size = 0x100000, .flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE | JAILHOUSE_MEM_ROOTSHARED, }, /* communication region */ { .virt_start = 0x80000000, .size = 0x00001000, .flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE | JAILHOUSE_MEM_COMM_REGION, }, }, .irqchips = { /* GIC */ { .address = 0xf9010000, /* GICD base address - Display controller */ .pin_base = 32, /* The first irqchip starts at .pin_base=32 as the first 32 interrupts are reserved for SGIs and PPIs. */ .pin_bitmap = { //1 << (54 - 32), 1 << (53 - 32), // cat /proc/interrupts interrupt da UART0 AQUI ESTA A DIFERENÇA 0, 0, (1 << (140 - 128)) | (1 << (142 - 128)) //PL to PS interrupt signals 8 to 15. }, }, }, .pci_devices = { /* 00:00.0 */ { .type = JAILHOUSE_PCI_TYPE_IVSHMEM, .bdf = 0 << 3, .bar_mask = { 0xffffff00, 0xffffffff, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, .shmem_region = 3, .shmem_protocol = JAILHOUSE_SHMEM_PROTO_VETH, }, }, };
