Hi Mohamed,
on the rpi4 there's a global offset used in Linux's device tree (check for ranges statement in bcm2711.dtsi). The address of the sdhc/mmc controller rather is 0xfe300000. Also use 0x7e + 32 for the IRQ to consider it's an SPI.
Adam
On Wed Oct 07, 2020 at 20:28:44 +0200, Mohamed Nasr wrote:
I am trying to access SD card of Raspberry Pi 4 But the IO fail with IO | new iomem region: p=0000007e000000 v=00000000400000 s=400000 (bmb=0x24370) IO | map mem: p=0000007e300000 v=00000000700000 s=1000: failed(-12) VMM: FATAL: Insufficient memory
Can you help me on what I am missing?
My configurations are:
----------- io.cfg ---------------------------------- local Res = Io.Res local Hw = Io.Hw local add_children = Io.Dt.add_children
add_children(Io.system_bus(), function() mmc = Hw.Device(function() compatible = { "brcm,bcm2835-mmc" }; Resource.reg0 = Res.mmio(0x7e300000, 0x7e3000FF); Resource.irq0 = Res.irq(0x7e); Property.flags = Io.Hw_device_DF_dma_supported; end) end)
-------- vm_hw.vbus --------------------------- Io.add_vbusses { vm_hw = Io.Vi.System_bus(function() MMC = wrap(Io.system_bus().mmc); end); }
-------- rpi_mmc.ned ------------------------- local L4 = require("L4"); local l = L4.default_loader;
vbus_l4linux = l:new_channel();
-- Start io & flash memory l:start({ caps = { sigma0 = L4.cast(L4.Proto.Factory, L4.Env.sigma0):create(L4.Proto.Sigma0), icu = L4.Env.icu, vm_hw = vbus_l4linux:svr() }, log = {"IO", "y"} }, "rom/io rom/io.cfg rom/vm_hw.vbus -vvvvvv");
l:startv({ caps = { ram = L4.Env.user_factory:create(L4.Proto.Dataspace, 256 * 1024 * 1024, 7, 21):m("rws"); vbus = vbus_l4linux; }, log = L4.Env.log:m("rws") }, "rom/uvmm", "-v", "-krom/image.bin", "-rrom/ramdisk-arm64.rd", "-drom/virt-arm_virt-64-2.dtb", "-cconsole=hvc0 ramdisk_size=10000 root=/dev/ram0 rw");
--------------- modules.list --------------------- entry rpi-mmc kernel fiasco -serial_esc roottask moe rom/rpi-mmc.ned module uvmm module l4re module ned module virt-arm_virt-64-mod.dtb module ramdisk-arm64.rd module rpi-mmc.ned module image.bin module io module io.cfg module vm_hw.vbus
------------- I added mmc to device tree --------- mmc@7e300000 { compatible = "brcm,bcm2835-mmc", "brcm,bcm2835-sdhci"; reg = <0x7e300000 0x100>; interrupts = <0x0 0x7e 0x4>; clocks = <0x3 0x1c>; dmas = <0xa 0xb>; dma-names = "rx-tx"; brcm,overclock-50 = <0x0>; status = "disabled"; pinctrl-names = "default"; pinctrl-0 = <0x19>; bus-width = <0x4>; phandle = <0x2d>; };
I tested Linux kernel with uvmm module and without IO module and it was working perfectly. I compiled it with the following options on:
CONFIG_VIRTIO=y CONFIG_VIRTIO_PCI=y CONFIG_VIRTIO_BLK=y CONFIG_BLK_MQ_VIRTIO=y CONFIG_VIRTIO_CONSOLE=y CONFIG_VIRTIO_INPUT=y CONFIG_VIRTIO_NET=y
boot log messages are:
L4 Bootstrapper Build: #104 Wed Oct 7 20:14:57 EET 2020, 7.5.0 Raspberry Pi Model 4B, Rev 1.1, 4096MB, SoC BCM2711 [c03111] Warranty intact, OTP reading allowed, OTP programming allowed, Overvoltage allowed RAM: 0000000000000000 - 000000003b3fffff: 970752kB RAM: 0000000040000000 - 00000000fbffffff: 3080192kB Total RAM: 3956MB Scanning fiasco Scanning sigma0 Scanning moe Moving up to 14 modules behind 1100000 moving module 13 { 2540000-25400bb } -> { 262c000-262c0bb } [188] moving module 12 { 253f000-253f555 } -> { 262b000-262b555 } [1366] moving module 11 { 230c000-253e187 } -> { 23f8000-262a187 } [2302344] moving module 10 { 15b3000-230b9ff } -> { 169f000-23f79ff } [13994496] moving module 09 { 15b2000-15b22ea } -> { 169e000-169e2ea } [747] moving module 08 { 1232000-15b1fff } -> { 131e000-169dfff } [3670016] moving module 07 { 1231000-123176c } -> { 131d000-131d76c } [1901] moving module 06 { 11be000-123041f } -> { 12aa000-131c41f } [468000] moving module 05 { 11a0000-11bd14f } -> { 128c000-12a914f } [119120] moving module 04 { 119f000-119fdbf } -> { 128b000-128bdbf } [3520] moving module 03 { 10eb000-119e957 } -> { 11d7000-128a957 } [735576] moving module 02 { 10ad000-10eaf0f } -> { 1199000-11d6f0f } [253712] moving module 01 { 10a3000-10ac947 } -> { 118f000-1198947 } [39240] moving module 00 { 1014000-10a24c7 } -> { 1100000-118e4c7 } [582856] Loading fiasco Loading sigma0 Loading moe find kernel info page... found kernel info page (via ELF) at 3000 Regions of list 'regions' [ 0, fff] { 1000} Arch mpspin [ 1000, 9ffff] { 9f000} Kern fiasco [ a0000, a01ff] { 200} Root mbi_rt [ 100000, 10e46f] { e470} Sigma0 sigma0 [ 140000, 17d70f] { 3d710} Root moe [ 17e710, 189edf] { b7d0} Root moe [ 1000000, 10122b3] { 122b4} Boot bootstrap [ 1013210, 1013c1c] { a0d} Boot modinfo [ 11d7000, 262c0bb] { 14550bc} Root Module found kernel options (via ELF) at 4000 Sigma0 config ip:0010042c sp:00000000 Roottask config ip:00141594 sp:00000000 Starting kernel fiasco at 00001760 Hello from Startup::stage2 Number of IRQs available at this GIC: 256 FPU: Initialize ARM generic timer: freq=54000000 interval=54000 cnt=2085101974 SERIAL ESC: allocated IRQ 125 for serial uart Not using serial hack in slow timer handler. Welcome to L4/Fiasco.OC! L4/Fiasco.OC microkernel on arm Rev: unknown compiled with gcc 7.5.0 for RPi4 (Broadcom 2711) [] Build: #1 Mon Oct 5 13:54:22 EET 2020
Allocate ARM PPI 25 to virtual 0 Allocate ARM PPI 27 to virtual 1 Allocate ARM PPI 25 to virtual 0 Allocate ARM PPI 27 to virtual 1 Allocate ARM PPI 25 to virtual 0 Cache config: ON Allocate ARM PPI 27 to virtual 1 Calibrating timer loop... Cache config: ON Allocate ARM PPI 25 to virtual 0 done. Allocate ARM PPI 27 to virtual 1 MDB: use page size: 30 Cache config: ON MDB: use page size: 21 ID_PFR[01]: 00002222 00000000MDB: use page size: 12 ID_[DA]FR0: 10305106 00000000 SIGMA0: Hello! ID_MMFR[04]: 00001124 00000000 00000000 00000000 KIP @ ID_PFR[01]: 00002222 000000003000 ID_[DA]FR0: 10305106 00000000
ID_MMFR[04]: 00001124 00000000 00000000 00000000 allocated ID_PFR[01]: 00002222 000000004 ID_[DA]FR0: 10305106 00000000 KBID_MMFR[04]: 00001124 00000000 00000000 00000000 for maintenance structures SIGMA0: Dump of all resource maps RAM:------------------------ [4:RWX:a0000;a0fff] [0:RWX:a1000;fffff] [0:RWX:10f000;13ffff] [4:R-X:140000;17dfff] [4:RW-:17e000;189fff] [0:RWX:18a000;11d6fff] [4:RWX:11d7000;262cfff] [0:RWX:262d000;3b3fffff] [0:RWX:40000000;faffffff] IOMEM:---------------------- [0:RW-:0;fff] [0:RW-:3b400000;3fffffff] [0:RWX:fc000000;ffffffffffffffff] MOE: Hello world MOE: found 4012740 KByte free memory MOE: found RAM from a0000 to fb000000 MOE: allocated 4015 KByte for the page array @0x18a000 MOE: virtual user address space [0-7fffffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [11d7000-128a958] [C:107000] uvmm BOOTFS: [128b000-128bdc0] [C:109000] vmm.lua BOOTFS: [128c000-12a9150] [C:10b000] l4re BOOTFS: [12aa000-131c420] [C:10d000] ned BOOTFS: [131d000-131d76d] [C:10f000] virt-arm_virt-64-2.dtb BOOTFS: [131e000-169e000] [C:111000] ramdisk-arm64.rd BOOTFS: [169e000-169e2eb] [C:113000] rpi-mmc3.ned BOOTFS: [169f000-23f7a00] [C:115000] image.bin BOOTFS: [23f8000-262a188] [C:117000] io BOOTFS: [262b000-262b556] [C:119000] io.cfg BOOTFS: [262c000-262c0bc] [C:11b000] vm_hw.vbus MOE: cmdline: moe rom/rpi-mmc3.ned MOE: Starting: rom/ned rom/rpi-mmc3.ned MOE: loading 'rom/ned' Ned says: Hi World! Ned: loading file: 'rom/rpi-mmc3.ned' IO | Io service IO | Verboseness level: 7 IO | unused physical memory space: IO | [0000003b400000-0000003fffffff] IO | [000000fc000000-ffffffffffffffff] IO | no 'iommu' capability found, using CPU-phys for DMA VMM[]: Created VCPU 0 @ 16000 IO | Loading: config 'rom/io.cfg' IO | Loading: config 'rom/vm_hw.vbus' IO | Add IRQ resources to vbus: IRQ [0000000000007e-0000000000007e 1] none (align=0 flags=1) IO | vm_hw: [N12_GLOBAL__N_112Virtual_sbusE] IO | Resources: ==== start ==== IO | Resources: ===== end ===== IO | L4ICU: [N2Vi6Sw_icuE] IO | Resources: ==== start ==== IO | Resources: ===== end ===== IO | MMC: [N2Vi9Proxy_devE] IO | Resources: ==== start ==== IO | IRQ [0000000000007e-0000000000007e 1] none (align=0 flags=1) IO | IOMEM [0000007e300000-0000007e3000ff 100] 32-bit non-pref (align=ff flags=2) IO | DMADOM [00000000000000-00000000000000 1] (align=0 flags=6) IO | Resources: ===== end ===== IO | Real Hardware ----------------------------------- IO | System Bus: IO | Resources: ==== start ==== IO | DMADOM [00000000000000-00000000000000 1] (align=0 flags=6) IO | Resources: ===== end ===== IO | mmc: IO | compatible= { "brcm,bcm2835-mmc" } IO | Clients: ===== start ==== IO | MMC: [N2Vi9Proxy_devE] IO | Clients: ===== end ==== IO | Resources: ==== start ==== IO | IRQ [0000000000007e-0000000000007e 1] none (align=0 flags=1) IO | IOMEM [0000007e300000-0000007e3000ff 100] 32-bit non-pref (align=ff flags=2) IO | DMADOM [00000000000000-00000000000000 1] (align=0 flags=6) IO | Resources: ===== end ===== IO | warning: could not register control interface at cap 'platform_ctl' IO | Ready. Waiting for request. VMM[GIC]: create ARM GICv2 VMM[main]: Hello out there. VMM[ram]: RAM: @ 0x2800000 size=0x10000000 (ci) VMM[ram]: RAM: VMM mapping @ 0x1200000 size=0x10000000 VMM[ram]: RAM: VM offset=0xfffffffffea00000 VMM[main]: Loading kernel... VMM[file]: load: @ 0x2880000 VMM[file]: copy in: to offset 0x80000-0xdd8a00 VMM[]: Create virtual console VMM[guest]: New mmio mapping: @ f1040000 10000 VMM[GIC]: GICC virtualization only supports sizes up to 0x1000, adjusting device tree node VMM[GIC]: GIC interrupt-controller.reg update: Adjusting GICC size from 20000 to 1000 VMM[guest]: New mmio mapping: @ f1060000 1000 VMM[guest]: New mmio mapping: @ f1120000 100 VMM[]: virtio_net@10000.l4vmm,virtiocap: capability net is invalid. VMM[vm]: Device creation for virtual device virtio_net@10000 failed. Disabling device. VMM[Timer]: Guest timer frequency is 54000000 using (1/54), (9942053/29) to calculate timeouts VMM[psci]: Register PSCI device: hvc mode VMM[ioproxy]: Registering IRQ resource MMC.irq0 : 0x7e VMM[ioproxy]: Adding MMIO resource MMC.reg0 : [0x7e300000 - 0x7e3000ff] IO | new iomem region: p=0000007e000000 v=00000000400000 s=400000 (bmb=0x24370) IO | map mem: p=0000007e300000 v=00000000700000 s=1000: failed(-12) VMM: FATAL: Insufficient memory
Best Regards, Nasr
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Adam