After revisiting some documentation/tutorial video I realized that there
were significant misconceptions on my side.
I now placed the hypervisor memory outside of the linux memory defined in
mem_regions and also added all regions used by the peripherals shown in
/proc/iomem.
However, unfortunately the board still is stuck after enabling and there is
no output (CONFIG_TRACE_ERROR is enabled).
#include <jailhouse/types.h>
#include <jailhouse/cell-config.h>
struct {
struct jailhouse_system header;
__u64 cpus[1];
struct jailhouse_memory mem_regions[3];
struct jailhouse_irqchip irqchips[1];
} __attribute__((packed)) config = {
.header = {
.signature = JAILHOUSE_SYSTEM_SIGNATURE,
.revision = JAILHOUSE_CONFIG_REVISION,
.flags = JAILHOUSE_SYS_VIRTUAL_DEBUG_CONSOLE,
.hypervisor_memory = {
.phys_start = 0x09000000,
.size = 0x00400000,
},
.debug_console = {
.flags = JAILHOUSE_CON_TYPE_NONE,
},
.platform_info = {
.arm = {
.gic_version = 2,
.gicd_base = 0xffc01000,
.gicc_base = 0xffc02000,
.gich_base = 0xffc04000,
.gicv_base = 0xffc06000,
.maintenance_irq = 25,
},
},
.root_cell = {
.name = "a113x",
.cpu_set_size = sizeof(config.cpus),
.num_memory_regions = ARRAY_SIZE(config.mem_regions),
.num_irqchips = ARRAY_SIZE(config.irqchips),
},
},
.cpus = {
0b1111,
},
.mem_regions = {
{
.phys_start = 0xff3f0000,
.virt_start = 0xff3f0000,
.size = 0x419038,
.flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE |
JAILHOUSE_MEM_IO,
},
{
.phys_start = 0xffd13000,
.virt_start = 0xffd13000,
.size = 0x2C07FF,
.flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE |
JAILHOUSE_MEM_IO,
},
/* System RAM */ {
.phys_start = 0x00000000,
.virt_start = 0x00000000,
.size = 0x08000000,
.flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE |
JAILHOUSE_MEM_EXECUTE,
},
},
.irqchips = {
/* GIC */ {
.address = 0xffc01000,
.pin_base = 32,
.pin_bitmap = {
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
},
},
},
};
lpfeifhofer schrieb am Donnerstag, 30. Juni 2022 um 14:42:20 UTC+2:
> Hi, I am currently trying to get jailhouse running on a new arm64 target
> (Cortex-A53). I am trying to get a minimal root cell configuration working
> but at the moment when enabling it it just immediately crashes the board
> (stuck without any output).
>
> The physical memory on the board seems to be available from
> 00000000-1fffffff (/proc/iomem) and initially I reduced the memory for
> Linux using mem=128M to be able to place jailhouse into the upper regions
> (see below, starting at 0x08000000).
>
> Following that I tried to make sense on how the GIC needs to be set up.
> From what I know the device uses a GIC v2 with base address 0xffc01000.
> This can be found in the linux device tree here:
> https://github.com/khadas/linux/blob/khadas-vims-5.4.y/arch/arm64/boot/dts/amlogic/mesont7.dtsi#L285
>
> However, there it only features 2 entries, and in all v2 configurations
> found in the jailhouse repo 4 addresses are used. (GIC v3 seems to use only
> two).
>
> In addition I am not sure what the purpose of irqchips is and how that
> should look like. Is this to communicate to jailhouse what interrupts it
> can make use of?
>
> It would be great to get some feedback if I correctly configured the GIC
> (and memory) and if what I am seeing could be related to a incorrect
> configuration on my side. (I might also have to extend this configuration,
> I assumed what I have is enough for a minimal setup.)
>
> struct {
> struct jailhouse_system header;
> __u64 cpus[1];
> struct jailhouse_memory mem_regions[1];
> struct jailhouse_irqchip irqchips[1];
> struct jailhouse_pci_device pci_devices[0];
> } __attribute__((packed)) config = {
> .header = {
> .signature = JAILHOUSE_SYSTEM_SIGNATURE,
> .revision = JAILHOUSE_CONFIG_REVISION,
> .flags = JAILHOUSE_SYS_VIRTUAL_DEBUG_CONSOLE,
> .hypervisor_memory = {
> .phys_start = 0x08000000,
> .size = 0x04000000,
> },
> .debug_console = {
> .flags = JAILHOUSE_CON_TYPE_NONE,
> },
> .platform_info = {
> .pci_mmconfig_base = 0x0C000000,
> .pci_mmconfig_end_bus = 0,
> .pci_is_virtual = 1,
> .arm = {
> .gic_version = 2,
> .gicd_base = 0xffc01000,
> .gicc_base = 0xffc02000,
> .gich_base = 0xffc04000,
> .gicv_base = 0xffc06000,
> .maintenance_irq = 25,
> },
> },
> .root_cell = {
> .name = "AM113",
>
> .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 = 108,
> },
> },
>
> .cpus = {
> 0b1111,
> },
>
> .mem_regions = {
> /* System RAM */ {
> .phys_start = 0x08000000,
> .virt_start = 0x08000000,
> .size = 0x04000000,
> .flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE |
> JAILHOUSE_MEM_EXECUTE,
> },
> },
>
> .irqchips = {
> /* GIC */ {
> .address = 0xffc01000,
> .pin_base = 32,
> .pin_bitmap = {
> 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
> },
> },
> },
>
> .pci_devices = {
>
> },
> };
>
>
> # cat /proc/iomem
> 00000000-07ffffff : System RAM
> 03000000-03e3ffff : Kernel code
> 04030000-04bcbfff : Kernel data
> ff3f0000-ff3fffff : /ethernet@0xff3f0000
> ff500000-ff507fff : /dwc3@ff500000
> ff500000-ff507fff : /dwc3@ff500000
> ff50c100-ff5fffff : /dwc3@ff500000
> ff634018-ff63401b : /rng
> ff634430-ff63446b : gpio
> ff634480-ff6344bf : mux
> ff6344e8-ff6344fb : pull
> ff634520-ff634533 : pull-enable
> ff634540-ff634547 : /ethernet@0xff3f0000
> ff63c400-ff63c44b : /mhu@c883c400
> ff642000-ff643fff : /soc/audiobus@0xff642000
> ff800014-ff80001b : mux
> ff800024-ff80002b : gpio
> ff80002c-ff80002f : pull
> ff803000-ff803017 : ff803000.serial
> ff805000-ff80501f : /soc/aobus@ff800000/i2c@5000
> ff809000-ff809037 : /saradc
> ffd13000-ffd1303b : /spi@ffd130000
> ffd1e000-ffd1e01f : /soc/cbus@ffd00000/i2c@1e000
> ffd23000-ffd23017 : ffd23000.serial
> ffe05000-ffe06fff : /sdio@ffe05000
> ffe07800-ffe079ff : ffe07800.mtd_nand
> ffe09000-ffe0907f : /usb2phy@ffe09000
> ffe09080-ffe0909f : /usb3phy@ffe09080
> fffd3000-fffd37ff : /mhu@c883c400
>
>
>
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