How to enable Guest Linux VM on Raspberry PI3?
After I brought up L4Re and Fiasco on Raspberry PI3, would like to enable guest Linux VM on top of it. I'm looking at the link https://github.com/kernkonzept/manifest/wiki/LinuxVM and hoping I can do the same thing on Raspberry PI3. The link seems using hardware-assisted virtualization option uvmm based for guest VM. There seems also L4Linux Paravirtualization option. Which option should I use for me to enable guest LInux VM on Raspberry PI3? In addition, when I followed the link to try on QEMU first, encounter some "vbus" capability issue. I followed the guidance exactly as the link says. However, when I started the command to spawning the Linux VM as: $make E=uvmm-basic qemu It failed with following log: ============================================ MOE: virtual user address space [0-7fffffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [41100000-411974b8] [C:107000] uvmm BOOTFS: [41198000-411c4e58] [C:109000] l4re BOOTFS: [411c5000-41246770] [C:10b000] ned BOOTFS: [41247000-412475c4] [C:10d000] virt-arm_virt.dtb BOOTFS: [41248000-41430200] [C:10f000] ramdisk-armv8.cpio.gz BOOTFS: [41431000-41431242] [C:111000] uvmm-basic.ned BOOTFS: [41432000-42618a00] [C:113000] Image.gz MOE: cmdline: moe rom/uvmm-basic.ned MOE: Starting: rom/ned rom/uvmm-basic.ned MOE: loading 'rom/ned' Ned says: Hi World! Ned: loading file: 'rom/uvmm-basic.ned' VMM[vmbus]: 'vbus' capability not found. Hardware access not possible for VM. VMM[main]: Hello out there. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device virtio_uart@20000 failed. Disabling device. VMM[]: virtio_net@10000.l4vmm,virtiocap: capability net is invalid. VMM[vm]: Device creation for virtual device virtio_net@10000 failed. Disabling device. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device interrupt-controller failed. Disabling device. VMM: FATAL: Parsing timer interrupt: Argument out of range qemu-system-aarch64: terminating on signal 2 Makefile:6: recipe for target 'do-all-make-goals' failed make: *** [do-all-make-goals] Interrupt ========================================================================= Any feedbacks are greatly appreciated! Lei Zhou
Hi Lei Zhou! On 6/7/19 8:27 PM, Lei Zhou wrote:
After I brought up L4Re and Fiasco on Raspberry PI3, would like to enable guest Linux VM on top of it.
I'm looking at the link https://github.com/kernkonzept/manifest/wiki/LinuxVM and hoping I can do the same thing on Raspberry PI3.
The link seems using hardware-assisted virtualization option uvmm based for guest VM. There seems also L4Linux Paravirtualization option. Which option should I use for me to enable guest LInux VM on Raspberry PI3?
For aarch64, use uvmm.
In addition, when I followed the link to try on QEMU first, encounter some "vbus" capability issue. I followed the guidance exactly as the link says. However, when I started the command to spawning the Linux VM as: $make E=uvmm-basic qemu
It failed with following log:
============================================ MOE: virtual user address space [0-7fffffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [41100000-411974b8] [C:107000] uvmm BOOTFS: [41198000-411c4e58] [C:109000] l4re BOOTFS: [411c5000-41246770] [C:10b000] ned BOOTFS: [41247000-412475c4] [C:10d000] virt-arm_virt.dtb BOOTFS: [41248000-41430200] [C:10f000] ramdisk-armv8.cpio.gz BOOTFS: [41431000-41431242] [C:111000] uvmm-basic.ned BOOTFS: [41432000-42618a00] [C:113000] Image.gz MOE: cmdline: moe rom/uvmm-basic.ned MOE: Starting: rom/ned rom/uvmm-basic.ned MOE: loading 'rom/ned' Ned says: Hi World! Ned: loading file: 'rom/uvmm-basic.ned' VMM[vmbus]: 'vbus' capability not found. Hardware access not possible for VM.
"The 'vbus' capability not found" message is expected as you are not (or at least the tutorial scenario) is not passing any vbuses to the guest. This is only needed when you want to pass some I/O devices to the guest. For the GIC you don't do this with the current sources (though it was necessary in the past).
VMM[main]: Hello out there. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus
This makes me think that you are probably not using recent sources. Can you confirm? With the sources from our GitHub[1], you don't need to put the GIC on the vbus. Jakub [1] https://github.com/kernkonzept -- Kernkonzept GmbH at Dresden, Germany, HRB 31129, CEO Dr.-Ing. Michael Hohmuth
On Fri Jun 07, 2019 at 18:27:18 +0000, Lei Zhou wrote:
After I brought up L4Re and Fiasco on Raspberry PI3, would like to enable guest Linux VM on top of it.
I'm looking at the link https://github.com/kernkonzept/manifest/wiki/LinuxVM and hoping I can do the same thing on Raspberry PI3.
The link seems using hardware-assisted virtualization option uvmm based for guest VM. There seems also L4Linux Paravirtualization option. Which option should I use for me to enable guest LInux VM on Raspberry PI3?
You can only use L4Linux as the Raspberries do not support hardware-assisted virtualization (because they have the wrong interrupt controller). Adam
In addition, when I followed the link to try on QEMU first, encounter some "vbus" capability issue. I followed the guidance exactly as the link says. However, when I started the command to spawning the Linux VM as: $make E=uvmm-basic qemu
It failed with following log:
============================================ MOE: virtual user address space [0-7fffffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [41100000-411974b8] [C:107000] uvmm BOOTFS: [41198000-411c4e58] [C:109000] l4re BOOTFS: [411c5000-41246770] [C:10b000] ned BOOTFS: [41247000-412475c4] [C:10d000] virt-arm_virt.dtb BOOTFS: [41248000-41430200] [C:10f000] ramdisk-armv8.cpio.gz BOOTFS: [41431000-41431242] [C:111000] uvmm-basic.ned BOOTFS: [41432000-42618a00] [C:113000] Image.gz MOE: cmdline: moe rom/uvmm-basic.ned MOE: Starting: rom/ned rom/uvmm-basic.ned MOE: loading 'rom/ned' Ned says: Hi World! Ned: loading file: 'rom/uvmm-basic.ned' VMM[vmbus]: 'vbus' capability not found. Hardware access not possible for VM. VMM[main]: Hello out there. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device virtio_uart@20000 failed. Disabling device. VMM[]: virtio_net@10000.l4vmm,virtiocap: capability net is invalid. VMM[vm]: Device creation for virtual device virtio_net@10000 failed. Disabling device. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device interrupt-controller failed. Disabling device. VMM: FATAL: Parsing timer interrupt: Argument out of range qemu-system-aarch64: terminating on signal 2 Makefile:6: recipe for target 'do-all-make-goals' failed make: *** [do-all-make-goals] Interrupt =========================================================================
Any feedbacks are greatly appreciated! Lei Zhou
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Thanks Adam & Jakub for your promptly support. 1> I will experiment L4Linux on my Raspberry PI3 to get guest Linux VM up. 2> Yes, after I sycned to lastest <kernkonzept> code base and was able to make Linux VM upworking on the QEMU virtual ARM platform. Was using the source code from https://svn.l4re.org/repos/oc/l4re/. Seems they are not exactly the same. Have a great weekend! Lei ________________________________________ From: l4-hackers [l4-hackers-bounces@os.inf.tu-dresden.de] on behalf of Adam Lackorzynski [adam@os.inf.tu-dresden.de] Sent: Friday, June 07, 2019 3:54 PM To: l4-hackers@os.inf.tu-dresden.de Subject: Re: How to enable Guest Linux VM on Raspberry PI3? On Fri Jun 07, 2019 at 18:27:18 +0000, Lei Zhou wrote:
After I brought up L4Re and Fiasco on Raspberry PI3, would like to enable guest Linux VM on top of it.
I'm looking at the link https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_kernkonzept_... and hoping I can do the same thing on Raspberry PI3.
The link seems using hardware-assisted virtualization option uvmm based for guest VM. There seems also L4Linux Paravirtualization option. Which option should I use for me to enable guest LInux VM on Raspberry PI3?
You can only use L4Linux as the Raspberries do not support hardware-assisted virtualization (because they have the wrong interrupt controller). Adam
In addition, when I followed the link to try on QEMU first, encounter some "vbus" capability issue. I followed the guidance exactly as the link says. However, when I started the command to spawning the Linux VM as: $make E=uvmm-basic qemu
It failed with following log:
============================================ MOE: virtual user address space [0-7fffffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [41100000-411974b8] [C:107000] uvmm BOOTFS: [41198000-411c4e58] [C:109000] l4re BOOTFS: [411c5000-41246770] [C:10b000] ned BOOTFS: [41247000-412475c4] [C:10d000] virt-arm_virt.dtb BOOTFS: [41248000-41430200] [C:10f000] ramdisk-armv8.cpio.gz BOOTFS: [41431000-41431242] [C:111000] uvmm-basic.ned BOOTFS: [41432000-42618a00] [C:113000] Image.gz MOE: cmdline: moe rom/uvmm-basic.ned MOE: Starting: rom/ned rom/uvmm-basic.ned MOE: loading 'rom/ned' Ned says: Hi World! Ned: loading file: 'rom/uvmm-basic.ned' VMM[vmbus]: 'vbus' capability not found. Hardware access not possible for VM. VMM[main]: Hello out there. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device virtio_uart@20000 failed. Disabling device. VMM[]: virtio_net@10000.l4vmm,virtiocap: capability net is invalid. VMM[vm]: Device creation for virtual device virtio_net@10000 failed. Disabling device. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device interrupt-controller failed. Disabling device. VMM: FATAL: Parsing timer interrupt: Argument out of range qemu-system-aarch64: terminating on signal 2 Makefile:6: recipe for target 'do-all-make-goals' failed make: *** [do-all-make-goals] Interrupt =========================================================================
Any feedbacks are greatly appreciated! Lei Zhou
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Hi Adam, I built Fiasco/L4Re and L4Linux vmlinuz, my own ramdisk-armv7.cpio.gz. This is my l4linux.cfg content: ============================================== -- vim:set ft=lua: local L4 = require("L4"); L4.default_loader:start({ log = L4.Env.log:m("rws"), }, "rom/vmlinuz mem=64M console=ttyLv0 " .. "l4x_rd=rom/ramdisk-armv7.cpio.gz" .. L4.Info.arch() .. ".rd " .. "root=1:0 ramdisk_size=4000 init=/bin/sh"); ===================================================== This is my module.list: entry L4Linux-rpi3 roottask moe rom/l4linux.cfg module l4linux.cfg module l4re module ned module vmlinuz module ramdisk-armv7.cpio.gz ======================================================= I made final bootstrap_L4Linux-rpi3.uimage. ===================================================== After Rpi3 booted up, it stopped at NED exception and hangs! And log is pasted as below: [0:20000000;ffffffff] MOE: Hello world MOE: found 501008 KByte free memory MOE: found RAM from 54000 to 1f000000 MOE: allocated 495 KByte for the page array @0x55000 MOE: virtual user address space [0-bfffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [1100000-1100147] [C:107000] l4linux.cfg BOOTFS: [1101000-11164f0] [C:109000] l4re BOOTFS: [1117000-117876c] [C:10b000] ned BOOTFS: [1179000-15ac4d0] [C:10d000] vmlinuz BOOTFS: [15ad000-1717400] [C:10f000] ramdisk-armv7.cpio.gz MOE: cmdline: moe rom/l4linux.cfg MOE: Starting: rom/ned rom/l4linux.cfg MOE: loading 'rom/ned' Ned says: Hi World! L4Re: rom/ned: Unhandled exception: PC=0x102cb30 PFA=20a960 LdrFlgs=0 ======================================================== $arm-***-objdump -ldSC ned // gives following disassembly at above PC: 102cb1c: e1a00004 mov r0, r4 102cb20: e34f1ff0 movt r1, #65520 ; 0xfff0 102cb24: e30c825c movw r8, #49756 ; 0xc25c 102cb28: ebffa155 bl 1015084 <lua_rawsetp(lua_State*, int, void const*)> 102cb2c: ed9f0b71 vldr d0, [pc, #452] ; 102ccf8 <luaopen_package(lua_State*)+0x24c> 102cb30: e1a00004 mov r0, r4 102cb34: e3a01088 mov r1, #136 ; 0x88 102cb38: e3406102 movt r6, #258 ; 0x102 102cb3c: ebffe4f1 bl 1025f08 <luaL_checkversion_(lua_State*, double, unsigned int)> ===================================================== Can you please help me? or get me familiar with how to debug on the L4Re system? Much appreciated! Lei ________________________________________ From: Lei Zhou Sent: Friday, June 07, 2019 5:34 PM To: Adam Lackorzynski; l4-hackers@os.inf.tu-dresden.de Subject: RE: How to enable Guest Linux VM on Raspberry PI3? Thanks Adam & Jakub for your promptly support. 1> I will experiment L4Linux on my Raspberry PI3 to get guest Linux VM up. 2> Yes, after I sycned to lastest <kernkonzept> code base and was able to make Linux VM upworking on the QEMU virtual ARM platform. Was using the source code from https://svn.l4re.org/repos/oc/l4re/. Seems they are not exactly the same. Have a great weekend! Lei ________________________________________ From: l4-hackers [l4-hackers-bounces@os.inf.tu-dresden.de] on behalf of Adam Lackorzynski [adam@os.inf.tu-dresden.de] Sent: Friday, June 07, 2019 3:54 PM To: l4-hackers@os.inf.tu-dresden.de Subject: Re: How to enable Guest Linux VM on Raspberry PI3? On Fri Jun 07, 2019 at 18:27:18 +0000, Lei Zhou wrote:
After I brought up L4Re and Fiasco on Raspberry PI3, would like to enable guest Linux VM on top of it.
I'm looking at the link https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_kernkonzept_... and hoping I can do the same thing on Raspberry PI3.
The link seems using hardware-assisted virtualization option uvmm based for guest VM. There seems also L4Linux Paravirtualization option. Which option should I use for me to enable guest LInux VM on Raspberry PI3?
You can only use L4Linux as the Raspberries do not support hardware-assisted virtualization (because they have the wrong interrupt controller). Adam
In addition, when I followed the link to try on QEMU first, encounter some "vbus" capability issue. I followed the guidance exactly as the link says. However, when I started the command to spawning the Linux VM as: $make E=uvmm-basic qemu
It failed with following log:
============================================ MOE: virtual user address space [0-7fffffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [41100000-411974b8] [C:107000] uvmm BOOTFS: [41198000-411c4e58] [C:109000] l4re BOOTFS: [411c5000-41246770] [C:10b000] ned BOOTFS: [41247000-412475c4] [C:10d000] virt-arm_virt.dtb BOOTFS: [41248000-41430200] [C:10f000] ramdisk-armv8.cpio.gz BOOTFS: [41431000-41431242] [C:111000] uvmm-basic.ned BOOTFS: [41432000-42618a00] [C:113000] Image.gz MOE: cmdline: moe rom/uvmm-basic.ned MOE: Starting: rom/ned rom/uvmm-basic.ned MOE: loading 'rom/ned' Ned says: Hi World! Ned: loading file: 'rom/uvmm-basic.ned' VMM[vmbus]: 'vbus' capability not found. Hardware access not possible for VM. VMM[main]: Hello out there. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device virtio_uart@20000 failed. Disabling device. VMM[]: virtio_net@10000.l4vmm,virtiocap: capability net is invalid. VMM[vm]: Device creation for virtual device virtio_net@10000 failed. Disabling device. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device interrupt-controller failed. Disabling device. VMM: FATAL: Parsing timer interrupt: Argument out of range qemu-system-aarch64: terminating on signal 2 Makefile:6: recipe for target 'do-all-make-goals' failed make: *** [do-all-make-goals] Interrupt =========================================================================
Any feedbacks are greatly appreciated! Lei Zhou
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I put in some printf(...) into ../pkg/ned/src/lua.cc for debugging. the exception seems throwing out from following function: lua.cc ---> int lua(....) ----> ================================= for (int i = 0; libs[i].func; ++i) { printf("Ned says: Hi World! %s 021\n", libs[i].name); luaL_requiref(L, libs[i].name, libs[i].func, 1); lua_pop(L, 1); } printf("Ned says: Hi World! leizhou 01\n"); =========================================== When it's loading "package" library by invoking this function, it raises this exception. LUAMOD_API int luaopen_package (lua_State *L) { createclibstable(L); luaL_newlib(L, pk_funcs); /* create 'package' table */ createsearcherstable(L); /* set field 'path' */ setpath(L, "path", LUA_PATHVARVERSION, LUA_PATH_VAR, LUA_PATH_DEFAULT); /* set field 'cpath' */ setpath(L, "cpath", LUA_CPATHVARVERSION, LUA_CPATH_VAR, LUA_CPATH_DEFAULT); /* store config information */ lua_pushliteral(L, LUA_DIRSEP "\n" LUA_PATH_SEP "\n" LUA_PATH_MARK "\n" LUA_EXEC_DIR "\n" LUA_IGMARK "\n"); lua_setfield(L, -2, "config"); /* set field 'loaded' */ luaL_getsubtable(L, LUA_REGISTRYINDEX, "_LOADED"); lua_setfield(L, -2, "loaded"); /* set field 'preload' */ luaL_getsubtable(L, LUA_REGISTRYINDEX, "_PRELOAD"); lua_setfield(L, -2, "preload"); lua_pushglobaltable(L); lua_pushvalue(L, -2); /* set 'package' as upvalue for next lib */ luaL_setfuncs(L, ll_funcs, 1); /* open lib into global table */ lua_pop(L, 1); /* pop global table */ return 1; /* return 'package' table */ } Any hints would be greatly appreciated! Lei ________________________________________ From: Lei Zhou Sent: Tuesday, June 11, 2019 7:10 PM To: Adam Lackorzynski; l4-hackers@os.inf.tu-dresden.de Subject: RE: How to enable Guest Linux VM on Raspberry PI3? Hi Adam, I built Fiasco/L4Re and L4Linux vmlinuz, my own ramdisk-armv7.cpio.gz. This is my l4linux.cfg content: ============================================== -- vim:set ft=lua: local L4 = require("L4"); L4.default_loader:start({ log = L4.Env.log:m("rws"), }, "rom/vmlinuz mem=64M console=ttyLv0 " .. "l4x_rd=rom/ramdisk-armv7.cpio.gz" .. L4.Info.arch() .. ".rd " .. "root=1:0 ramdisk_size=4000 init=/bin/sh"); ===================================================== This is my module.list: entry L4Linux-rpi3 roottask moe rom/l4linux.cfg module l4linux.cfg module l4re module ned module vmlinuz module ramdisk-armv7.cpio.gz ======================================================= I made final bootstrap_L4Linux-rpi3.uimage. ===================================================== After Rpi3 booted up, it stopped at NED exception and hangs! And log is pasted as below: [0:20000000;ffffffff] MOE: Hello world MOE: found 501008 KByte free memory MOE: found RAM from 54000 to 1f000000 MOE: allocated 495 KByte for the page array @0x55000 MOE: virtual user address space [0-bfffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [1100000-1100147] [C:107000] l4linux.cfg BOOTFS: [1101000-11164f0] [C:109000] l4re BOOTFS: [1117000-117876c] [C:10b000] ned BOOTFS: [1179000-15ac4d0] [C:10d000] vmlinuz BOOTFS: [15ad000-1717400] [C:10f000] ramdisk-armv7.cpio.gz MOE: cmdline: moe rom/l4linux.cfg MOE: Starting: rom/ned rom/l4linux.cfg MOE: loading 'rom/ned' Ned says: Hi World! L4Re: rom/ned: Unhandled exception: PC=0x102cb30 PFA=20a960 LdrFlgs=0 ======================================================== $arm-***-objdump -ldSC ned // gives following disassembly at above PC: 102cb1c: e1a00004 mov r0, r4 102cb20: e34f1ff0 movt r1, #65520 ; 0xfff0 102cb24: e30c825c movw r8, #49756 ; 0xc25c 102cb28: ebffa155 bl 1015084 <lua_rawsetp(lua_State*, int, void const*)> 102cb2c: ed9f0b71 vldr d0, [pc, #452] ; 102ccf8 <luaopen_package(lua_State*)+0x24c> 102cb30: e1a00004 mov r0, r4 102cb34: e3a01088 mov r1, #136 ; 0x88 102cb38: e3406102 movt r6, #258 ; 0x102 102cb3c: ebffe4f1 bl 1025f08 <luaL_checkversion_(lua_State*, double, unsigned int)> ===================================================== Can you please help me? or get me familiar with how to debug on the L4Re system? Much appreciated! Lei ________________________________________ From: Lei Zhou Sent: Friday, June 07, 2019 5:34 PM To: Adam Lackorzynski; l4-hackers@os.inf.tu-dresden.de Subject: RE: How to enable Guest Linux VM on Raspberry PI3? Thanks Adam & Jakub for your promptly support. 1> I will experiment L4Linux on my Raspberry PI3 to get guest Linux VM up. 2> Yes, after I sycned to lastest <kernkonzept> code base and was able to make Linux VM upworking on the QEMU virtual ARM platform. Was using the source code from https://svn.l4re.org/repos/oc/l4re/. Seems they are not exactly the same. Have a great weekend! Lei ________________________________________ From: l4-hackers [l4-hackers-bounces@os.inf.tu-dresden.de] on behalf of Adam Lackorzynski [adam@os.inf.tu-dresden.de] Sent: Friday, June 07, 2019 3:54 PM To: l4-hackers@os.inf.tu-dresden.de Subject: Re: How to enable Guest Linux VM on Raspberry PI3? On Fri Jun 07, 2019 at 18:27:18 +0000, Lei Zhou wrote:
After I brought up L4Re and Fiasco on Raspberry PI3, would like to enable guest Linux VM on top of it.
I'm looking at the link https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_kernkonzept_... and hoping I can do the same thing on Raspberry PI3.
The link seems using hardware-assisted virtualization option uvmm based for guest VM. There seems also L4Linux Paravirtualization option. Which option should I use for me to enable guest LInux VM on Raspberry PI3?
You can only use L4Linux as the Raspberries do not support hardware-assisted virtualization (because they have the wrong interrupt controller). Adam
In addition, when I followed the link to try on QEMU first, encounter some "vbus" capability issue. I followed the guidance exactly as the link says. However, when I started the command to spawning the Linux VM as: $make E=uvmm-basic qemu
It failed with following log:
============================================ MOE: virtual user address space [0-7fffffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [41100000-411974b8] [C:107000] uvmm BOOTFS: [41198000-411c4e58] [C:109000] l4re BOOTFS: [411c5000-41246770] [C:10b000] ned BOOTFS: [41247000-412475c4] [C:10d000] virt-arm_virt.dtb BOOTFS: [41248000-41430200] [C:10f000] ramdisk-armv8.cpio.gz BOOTFS: [41431000-41431242] [C:111000] uvmm-basic.ned BOOTFS: [41432000-42618a00] [C:113000] Image.gz MOE: cmdline: moe rom/uvmm-basic.ned MOE: Starting: rom/ned rom/uvmm-basic.ned MOE: loading 'rom/ned' Ned says: Hi World! Ned: loading file: 'rom/uvmm-basic.ned' VMM[vmbus]: 'vbus' capability not found. Hardware access not possible for VM. VMM[main]: Hello out there. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device virtio_uart@20000 failed. Disabling device. VMM[]: virtio_net@10000.l4vmm,virtiocap: capability net is invalid. VMM[vm]: Device creation for virtual device virtio_net@10000 failed. Disabling device. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device interrupt-controller failed. Disabling device. VMM: FATAL: Parsing timer interrupt: Argument out of range qemu-system-aarch64: terminating on signal 2 Makefile:6: recipe for target 'do-all-make-goals' failed make: *** [do-all-make-goals] Interrupt =========================================================================
Any feedbacks are greatly appreciated! Lei Zhou
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Hi, you're hitting a floating point intruction. Do you have FPU support enabled in Fiasco? Adam On Thu Jun 13, 2019 at 00:35:26 +0000, Lei Zhou wrote:
I put in some printf(...) into ../pkg/ned/src/lua.cc for debugging.
the exception seems throwing out from following function: lua.cc ---> int lua(....) ----> ================================= for (int i = 0; libs[i].func; ++i) { printf("Ned says: Hi World! %s 021\n", libs[i].name); luaL_requiref(L, libs[i].name, libs[i].func, 1); lua_pop(L, 1); }
printf("Ned says: Hi World! leizhou 01\n"); ===========================================
When it's loading "package" library by invoking this function, it raises this exception.
LUAMOD_API int luaopen_package (lua_State *L) { createclibstable(L); luaL_newlib(L, pk_funcs); /* create 'package' table */ createsearcherstable(L); /* set field 'path' */ setpath(L, "path", LUA_PATHVARVERSION, LUA_PATH_VAR, LUA_PATH_DEFAULT); /* set field 'cpath' */ setpath(L, "cpath", LUA_CPATHVARVERSION, LUA_CPATH_VAR, LUA_CPATH_DEFAULT); /* store config information */ lua_pushliteral(L, LUA_DIRSEP "\n" LUA_PATH_SEP "\n" LUA_PATH_MARK "\n" LUA_EXEC_DIR "\n" LUA_IGMARK "\n"); lua_setfield(L, -2, "config"); /* set field 'loaded' */ luaL_getsubtable(L, LUA_REGISTRYINDEX, "_LOADED"); lua_setfield(L, -2, "loaded"); /* set field 'preload' */ luaL_getsubtable(L, LUA_REGISTRYINDEX, "_PRELOAD"); lua_setfield(L, -2, "preload"); lua_pushglobaltable(L); lua_pushvalue(L, -2); /* set 'package' as upvalue for next lib */ luaL_setfuncs(L, ll_funcs, 1); /* open lib into global table */ lua_pop(L, 1); /* pop global table */ return 1; /* return 'package' table */ }
Any hints would be greatly appreciated! Lei
________________________________________ From: Lei Zhou Sent: Tuesday, June 11, 2019 7:10 PM To: Adam Lackorzynski; l4-hackers@os.inf.tu-dresden.de Subject: RE: How to enable Guest Linux VM on Raspberry PI3?
Hi Adam,
I built Fiasco/L4Re and L4Linux vmlinuz, my own ramdisk-armv7.cpio.gz.
This is my l4linux.cfg content: ============================================== -- vim:set ft=lua:
local L4 = require("L4");
L4.default_loader:start({ log = L4.Env.log:m("rws"), }, "rom/vmlinuz mem=64M console=ttyLv0 " .. "l4x_rd=rom/ramdisk-armv7.cpio.gz" .. L4.Info.arch() .. ".rd " .. "root=1:0 ramdisk_size=4000 init=/bin/sh"); ===================================================== This is my module.list:
entry L4Linux-rpi3 roottask moe rom/l4linux.cfg module l4linux.cfg module l4re module ned module vmlinuz module ramdisk-armv7.cpio.gz =======================================================
I made final bootstrap_L4Linux-rpi3.uimage.
=====================================================
After Rpi3 booted up, it stopped at NED exception and hangs! And log is pasted as below:
[0:20000000;ffffffff] MOE: Hello world MOE: found 501008 KByte free memory MOE: found RAM from 54000 to 1f000000 MOE: allocated 495 KByte for the page array @0x55000 MOE: virtual user address space [0-bfffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [1100000-1100147] [C:107000] l4linux.cfg BOOTFS: [1101000-11164f0] [C:109000] l4re BOOTFS: [1117000-117876c] [C:10b000] ned BOOTFS: [1179000-15ac4d0] [C:10d000] vmlinuz BOOTFS: [15ad000-1717400] [C:10f000] ramdisk-armv7.cpio.gz MOE: cmdline: moe rom/l4linux.cfg MOE: Starting: rom/ned rom/l4linux.cfg MOE: loading 'rom/ned' Ned says: Hi World! L4Re: rom/ned: Unhandled exception: PC=0x102cb30 PFA=20a960 LdrFlgs=0 ========================================================
$arm-***-objdump -ldSC ned // gives following disassembly at above PC:
102cb1c: e1a00004 mov r0, r4 102cb20: e34f1ff0 movt r1, #65520 ; 0xfff0 102cb24: e30c825c movw r8, #49756 ; 0xc25c 102cb28: ebffa155 bl 1015084 <lua_rawsetp(lua_State*, int, void const*)> 102cb2c: ed9f0b71 vldr d0, [pc, #452] ; 102ccf8 <luaopen_package(lua_State*)+0x24c> 102cb30: e1a00004 mov r0, r4 102cb34: e3a01088 mov r1, #136 ; 0x88 102cb38: e3406102 movt r6, #258 ; 0x102 102cb3c: ebffe4f1 bl 1025f08 <luaL_checkversion_(lua_State*, double, unsigned int)> =====================================================
Can you please help me? or get me familiar with how to debug on the L4Re system?
Much appreciated! Lei
________________________________________ From: Lei Zhou Sent: Friday, June 07, 2019 5:34 PM To: Adam Lackorzynski; l4-hackers@os.inf.tu-dresden.de Subject: RE: How to enable Guest Linux VM on Raspberry PI3?
Thanks Adam & Jakub for your promptly support.
1> I will experiment L4Linux on my Raspberry PI3 to get guest Linux VM up. 2> Yes, after I sycned to lastest <kernkonzept> code base and was able to make Linux VM upworking on the QEMU virtual ARM platform. Was using the source code from https://svn.l4re.org/repos/oc/l4re/. Seems they are not exactly the same.
Have a great weekend!
Lei ________________________________________ From: l4-hackers [l4-hackers-bounces@os.inf.tu-dresden.de] on behalf of Adam Lackorzynski [adam@os.inf.tu-dresden.de] Sent: Friday, June 07, 2019 3:54 PM To: l4-hackers@os.inf.tu-dresden.de Subject: Re: How to enable Guest Linux VM on Raspberry PI3?
On Fri Jun 07, 2019 at 18:27:18 +0000, Lei Zhou wrote:
After I brought up L4Re and Fiasco on Raspberry PI3, would like to enable guest Linux VM on top of it.
I'm looking at the link https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_kernkonzept_... and hoping I can do the same thing on Raspberry PI3.
The link seems using hardware-assisted virtualization option uvmm based for guest VM. There seems also L4Linux Paravirtualization option. Which option should I use for me to enable guest LInux VM on Raspberry PI3?
You can only use L4Linux as the Raspberries do not support hardware-assisted virtualization (because they have the wrong interrupt controller).
Adam
In addition, when I followed the link to try on QEMU first, encounter some "vbus" capability issue. I followed the guidance exactly as the link says. However, when I started the command to spawning the Linux VM as: $make E=uvmm-basic qemu
It failed with following log:
============================================ MOE: virtual user address space [0-7fffffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [41100000-411974b8] [C:107000] uvmm BOOTFS: [41198000-411c4e58] [C:109000] l4re BOOTFS: [411c5000-41246770] [C:10b000] ned BOOTFS: [41247000-412475c4] [C:10d000] virt-arm_virt.dtb BOOTFS: [41248000-41430200] [C:10f000] ramdisk-armv8.cpio.gz BOOTFS: [41431000-41431242] [C:111000] uvmm-basic.ned BOOTFS: [41432000-42618a00] [C:113000] Image.gz MOE: cmdline: moe rom/uvmm-basic.ned MOE: Starting: rom/ned rom/uvmm-basic.ned MOE: loading 'rom/ned' Ned says: Hi World! Ned: loading file: 'rom/uvmm-basic.ned' VMM[vmbus]: 'vbus' capability not found. Hardware access not possible for VM. VMM[main]: Hello out there. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device virtio_uart@20000 failed. Disabling device. VMM[]: virtio_net@10000.l4vmm,virtiocap: capability net is invalid. VMM[vm]: Device creation for virtual device virtio_net@10000 failed. Disabling device. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device interrupt-controller failed. Disabling device. VMM: FATAL: Parsing timer interrupt: Argument out of range qemu-system-aarch64: terminating on signal 2 Makefile:6: recipe for target 'do-all-make-goals' failed make: *** [do-all-make-goals] Interrupt =========================================================================
Any feedbacks are greatly appreciated! Lei Zhou
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Adam -- Adam adam@os.inf.tu-dresden.de Lackorzynski http://os.inf.tu-dresden.de/~adam/
Thanks Adam, much appreciated! by enabling the FPU fixes the exception. After I rebuilt the Fiasco and Rpi *.uimage, the logging moves further until the following error: ================================================= Starting binary at 0x3000268, argc=7 argv=0xafff4f8c *argv=0xb1007ff4 argv0=romz External resolver is at 0xa8000b48 ======> L4Linux starting... <======== Linux version 4.19.0-l4-svn63 (lezhou@CI0700000004358) (gcc version 7.4.1 201819 Binary name: rom/vmlinuz This is an AEABI build. Linux kernel command line (6 args): mem=64M console=ttyLv0l4x_rd=rom/ramdisk-ar1 CPU mapping (l:p)[1]: 0:0 Image: 03000000 - 03600000 [6144 KiB]. Areas: Text: 03000000 - 03305000 [3092kB] RO-Data: 03305000 - 033a8000 [652kB] Data: 033e2000 - 034130f4 [196kB] Init: 033be000 - 033e2000 [144kB] BSS: 034130f4 - 0349a000 [539kB] Device scan: Device scan done. l4lx_thread_create: Created thread 41a (cpu0) (u:b3000e00, v:b3000c00, sp:033e3) main thread will be 41a L4x: section-with-init(-data): Virt: 0x3000000 to 0x3499fff [4712 KiB] L4x: section-with-init-text: Virt: 0x3000000 to 0x3499fff [4712 KiB] L4x: data: Virt: 0x3000000 to 0x3499fff [4712 KiB] L4x: Main thread running, waiting... L4x: Memory size: 64MB L4x: Setting superpages for main memory L4x: Adjusted memory start: 03000000 L4x: Main memory: Virt: 0x3600000 to 0x75fffff [65536 KiB] L4x: vmalloc area: 07600000 - 0f600000 L4x: text: Virt: 0x3000000 to 0x3499fff [4712 KiB] Loading: rom/ramdisk-arm.rd INITRD: Size of RAMdisk is 1449KiB RAMdisk from 00002000 to 0016c400 [1449KiB] l4lx_thread_create: Created thread 41f (timer0) (u:b3000a00, v:00000000, sp:034) 'swp(b)' instruction at 03051d28 and faulting. Linux built for the wrong ARM version? 'swp(b)' instruction at 031b3604 and faulting. Linux built for the wrong ARM version? 'swp(b)' instruction at 031b3604 and faulting. ............................................................. Any comments? Thanks again, Lei ________________________________________ From: l4-hackers [l4-hackers-bounces@os.inf.tu-dresden.de] on behalf of Adam Lackorzynski [adam@os.inf.tu-dresden.de] Sent: Thursday, June 13, 2019 11:43 AM To: l4-hackers@os.inf.tu-dresden.de Subject: Re: How to enable Guest Linux VM on Raspberry PI3? Hi, you're hitting a floating point intruction. Do you have FPU support enabled in Fiasco? Adam On Thu Jun 13, 2019 at 00:35:26 +0000, Lei Zhou wrote:
I put in some printf(...) into ../pkg/ned/src/lua.cc for debugging.
the exception seems throwing out from following function: lua.cc ---> int lua(....) ----> ================================= for (int i = 0; libs[i].func; ++i) { printf("Ned says: Hi World! %s 021\n", libs[i].name); luaL_requiref(L, libs[i].name, libs[i].func, 1); lua_pop(L, 1); }
printf("Ned says: Hi World! leizhou 01\n"); ===========================================
When it's loading "package" library by invoking this function, it raises this exception.
LUAMOD_API int luaopen_package (lua_State *L) { createclibstable(L); luaL_newlib(L, pk_funcs); /* create 'package' table */ createsearcherstable(L); /* set field 'path' */ setpath(L, "path", LUA_PATHVARVERSION, LUA_PATH_VAR, LUA_PATH_DEFAULT); /* set field 'cpath' */ setpath(L, "cpath", LUA_CPATHVARVERSION, LUA_CPATH_VAR, LUA_CPATH_DEFAULT); /* store config information */ lua_pushliteral(L, LUA_DIRSEP "\n" LUA_PATH_SEP "\n" LUA_PATH_MARK "\n" LUA_EXEC_DIR "\n" LUA_IGMARK "\n"); lua_setfield(L, -2, "config"); /* set field 'loaded' */ luaL_getsubtable(L, LUA_REGISTRYINDEX, "_LOADED"); lua_setfield(L, -2, "loaded"); /* set field 'preload' */ luaL_getsubtable(L, LUA_REGISTRYINDEX, "_PRELOAD"); lua_setfield(L, -2, "preload"); lua_pushglobaltable(L); lua_pushvalue(L, -2); /* set 'package' as upvalue for next lib */ luaL_setfuncs(L, ll_funcs, 1); /* open lib into global table */ lua_pop(L, 1); /* pop global table */ return 1; /* return 'package' table */ }
Any hints would be greatly appreciated! Lei
________________________________________ From: Lei Zhou Sent: Tuesday, June 11, 2019 7:10 PM To: Adam Lackorzynski; l4-hackers@os.inf.tu-dresden.de Subject: RE: How to enable Guest Linux VM on Raspberry PI3?
Hi Adam,
I built Fiasco/L4Re and L4Linux vmlinuz, my own ramdisk-armv7.cpio.gz.
This is my l4linux.cfg content: ============================================== -- vim:set ft=lua:
local L4 = require("L4");
L4.default_loader:start({ log = L4.Env.log:m("rws"), }, "rom/vmlinuz mem=64M console=ttyLv0 " .. "l4x_rd=rom/ramdisk-armv7.cpio.gz" .. L4.Info.arch() .. ".rd " .. "root=1:0 ramdisk_size=4000 init=/bin/sh"); ===================================================== This is my module.list:
entry L4Linux-rpi3 roottask moe rom/l4linux.cfg module l4linux.cfg module l4re module ned module vmlinuz module ramdisk-armv7.cpio.gz =======================================================
I made final bootstrap_L4Linux-rpi3.uimage.
=====================================================
After Rpi3 booted up, it stopped at NED exception and hangs! And log is pasted as below:
[0:20000000;ffffffff] MOE: Hello world MOE: found 501008 KByte free memory MOE: found RAM from 54000 to 1f000000 MOE: allocated 495 KByte for the page array @0x55000 MOE: virtual user address space [0-bfffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [1100000-1100147] [C:107000] l4linux.cfg BOOTFS: [1101000-11164f0] [C:109000] l4re BOOTFS: [1117000-117876c] [C:10b000] ned BOOTFS: [1179000-15ac4d0] [C:10d000] vmlinuz BOOTFS: [15ad000-1717400] [C:10f000] ramdisk-armv7.cpio.gz MOE: cmdline: moe rom/l4linux.cfg MOE: Starting: rom/ned rom/l4linux.cfg MOE: loading 'rom/ned' Ned says: Hi World! L4Re: rom/ned: Unhandled exception: PC=0x102cb30 PFA=20a960 LdrFlgs=0 ========================================================
$arm-***-objdump -ldSC ned // gives following disassembly at above PC:
102cb1c: e1a00004 mov r0, r4 102cb20: e34f1ff0 movt r1, #65520 ; 0xfff0 102cb24: e30c825c movw r8, #49756 ; 0xc25c 102cb28: ebffa155 bl 1015084 <lua_rawsetp(lua_State*, int, void const*)> 102cb2c: ed9f0b71 vldr d0, [pc, #452] ; 102ccf8 <luaopen_package(lua_State*)+0x24c> 102cb30: e1a00004 mov r0, r4 102cb34: e3a01088 mov r1, #136 ; 0x88 102cb38: e3406102 movt r6, #258 ; 0x102 102cb3c: ebffe4f1 bl 1025f08 <luaL_checkversion_(lua_State*, double, unsigned int)> =====================================================
Can you please help me? or get me familiar with how to debug on the L4Re system?
Much appreciated! Lei
________________________________________ From: Lei Zhou Sent: Friday, June 07, 2019 5:34 PM To: Adam Lackorzynski; l4-hackers@os.inf.tu-dresden.de Subject: RE: How to enable Guest Linux VM on Raspberry PI3?
Thanks Adam & Jakub for your promptly support.
1> I will experiment L4Linux on my Raspberry PI3 to get guest Linux VM up. 2> Yes, after I sycned to lastest <kernkonzept> code base and was able to make Linux VM upworking on the QEMU virtual ARM platform. Was using the source code from https://urldefense.proofpoint.com/v2/url?u=https-3A__svn.l4re.org_repos_oc_l.... Seems they are not exactly the same.
Have a great weekend!
Lei ________________________________________ From: l4-hackers [l4-hackers-bounces@os.inf.tu-dresden.de] on behalf of Adam Lackorzynski [adam@os.inf.tu-dresden.de] Sent: Friday, June 07, 2019 3:54 PM To: l4-hackers@os.inf.tu-dresden.de Subject: Re: How to enable Guest Linux VM on Raspberry PI3?
On Fri Jun 07, 2019 at 18:27:18 +0000, Lei Zhou wrote:
After I brought up L4Re and Fiasco on Raspberry PI3, would like to enable guest Linux VM on top of it.
I'm looking at the link https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_kernkonzept_... and hoping I can do the same thing on Raspberry PI3.
The link seems using hardware-assisted virtualization option uvmm based for guest VM. There seems also L4Linux Paravirtualization option. Which option should I use for me to enable guest LInux VM on Raspberry PI3?
You can only use L4Linux as the Raspberries do not support hardware-assisted virtualization (because they have the wrong interrupt controller).
Adam
In addition, when I followed the link to try on QEMU first, encounter some "vbus" capability issue. I followed the guidance exactly as the link says. However, when I started the command to spawning the Linux VM as: $make E=uvmm-basic qemu
It failed with following log:
============================================ MOE: virtual user address space [0-7fffffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [41100000-411974b8] [C:107000] uvmm BOOTFS: [41198000-411c4e58] [C:109000] l4re BOOTFS: [411c5000-41246770] [C:10b000] ned BOOTFS: [41247000-412475c4] [C:10d000] virt-arm_virt.dtb BOOTFS: [41248000-41430200] [C:10f000] ramdisk-armv8.cpio.gz BOOTFS: [41431000-41431242] [C:111000] uvmm-basic.ned BOOTFS: [41432000-42618a00] [C:113000] Image.gz MOE: cmdline: moe rom/uvmm-basic.ned MOE: Starting: rom/ned rom/uvmm-basic.ned MOE: loading 'rom/ned' Ned says: Hi World! Ned: loading file: 'rom/uvmm-basic.ned' VMM[vmbus]: 'vbus' capability not found. Hardware access not possible for VM. VMM[main]: Hello out there. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device virtio_uart@20000 failed. Disabling device. VMM[]: virtio_net@10000.l4vmm,virtiocap: capability net is invalid. VMM[vm]: Device creation for virtual device virtio_net@10000 failed. Disabling device. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device interrupt-controller failed. Disabling device. VMM: FATAL: Parsing timer interrupt: Argument out of range qemu-system-aarch64: terminating on signal 2 Makefile:6: recipe for target 'do-all-make-goals' failed make: *** [do-all-make-goals] Interrupt =========================================================================
Any feedbacks are greatly appreciated! Lei Zhou
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Adam -- Adam adam@os.inf.tu-dresden.de Lackorzynski https://urldefense.proofpoint.com/v2/url?u=http-3A__os.inf.tu-2Ddresden.de_-... _______________________________________________ l4-hackers mailing list l4-hackers@os.inf.tu-dresden.de https://urldefense.proofpoint.com/v2/url?u=http-3A__os.inf.tu-2Ddresden.de_m...
Never mind and figured out the problem by googling. Need enable "CONFIG_SWP_EMULATE" --- Emulate SWP/SWPB instructions when configuring the L4Linux. Linux VM is up running on Rpi 3 and will enable other use cases further on Rpi 3. Thanks, Lei. ________________________________________ From: Lei Zhou Sent: Thursday, June 13, 2019 12:24 PM To: Adam Lackorzynski; l4-hackers@os.inf.tu-dresden.de Subject: RE: How to enable Guest Linux VM on Raspberry PI3? Thanks Adam, much appreciated! by enabling the FPU fixes the exception. After I rebuilt the Fiasco and Rpi *.uimage, the logging moves further until the following error: ================================================= Starting binary at 0x3000268, argc=7 argv=0xafff4f8c *argv=0xb1007ff4 argv0=romz External resolver is at 0xa8000b48 ======> L4Linux starting... <======== Linux version 4.19.0-l4-svn63 (lezhou@CI0700000004358) (gcc version 7.4.1 201819 Binary name: rom/vmlinuz This is an AEABI build. Linux kernel command line (6 args): mem=64M console=ttyLv0l4x_rd=rom/ramdisk-ar1 CPU mapping (l:p)[1]: 0:0 Image: 03000000 - 03600000 [6144 KiB]. Areas: Text: 03000000 - 03305000 [3092kB] RO-Data: 03305000 - 033a8000 [652kB] Data: 033e2000 - 034130f4 [196kB] Init: 033be000 - 033e2000 [144kB] BSS: 034130f4 - 0349a000 [539kB] Device scan: Device scan done. l4lx_thread_create: Created thread 41a (cpu0) (u:b3000e00, v:b3000c00, sp:033e3) main thread will be 41a L4x: section-with-init(-data): Virt: 0x3000000 to 0x3499fff [4712 KiB] L4x: section-with-init-text: Virt: 0x3000000 to 0x3499fff [4712 KiB] L4x: data: Virt: 0x3000000 to 0x3499fff [4712 KiB] L4x: Main thread running, waiting... L4x: Memory size: 64MB L4x: Setting superpages for main memory L4x: Adjusted memory start: 03000000 L4x: Main memory: Virt: 0x3600000 to 0x75fffff [65536 KiB] L4x: vmalloc area: 07600000 - 0f600000 L4x: text: Virt: 0x3000000 to 0x3499fff [4712 KiB] Loading: rom/ramdisk-arm.rd INITRD: Size of RAMdisk is 1449KiB RAMdisk from 00002000 to 0016c400 [1449KiB] l4lx_thread_create: Created thread 41f (timer0) (u:b3000a00, v:00000000, sp:034) 'swp(b)' instruction at 03051d28 and faulting. Linux built for the wrong ARM version? 'swp(b)' instruction at 031b3604 and faulting. Linux built for the wrong ARM version? 'swp(b)' instruction at 031b3604 and faulting. ............................................................. Any comments? Thanks again, Lei ________________________________________ From: l4-hackers [l4-hackers-bounces@os.inf.tu-dresden.de] on behalf of Adam Lackorzynski [adam@os.inf.tu-dresden.de] Sent: Thursday, June 13, 2019 11:43 AM To: l4-hackers@os.inf.tu-dresden.de Subject: Re: How to enable Guest Linux VM on Raspberry PI3? Hi, you're hitting a floating point intruction. Do you have FPU support enabled in Fiasco? Adam On Thu Jun 13, 2019 at 00:35:26 +0000, Lei Zhou wrote:
I put in some printf(...) into ../pkg/ned/src/lua.cc for debugging.
the exception seems throwing out from following function: lua.cc ---> int lua(....) ----> ================================= for (int i = 0; libs[i].func; ++i) { printf("Ned says: Hi World! %s 021\n", libs[i].name); luaL_requiref(L, libs[i].name, libs[i].func, 1); lua_pop(L, 1); }
printf("Ned says: Hi World! leizhou 01\n"); ===========================================
When it's loading "package" library by invoking this function, it raises this exception.
LUAMOD_API int luaopen_package (lua_State *L) { createclibstable(L); luaL_newlib(L, pk_funcs); /* create 'package' table */ createsearcherstable(L); /* set field 'path' */ setpath(L, "path", LUA_PATHVARVERSION, LUA_PATH_VAR, LUA_PATH_DEFAULT); /* set field 'cpath' */ setpath(L, "cpath", LUA_CPATHVARVERSION, LUA_CPATH_VAR, LUA_CPATH_DEFAULT); /* store config information */ lua_pushliteral(L, LUA_DIRSEP "\n" LUA_PATH_SEP "\n" LUA_PATH_MARK "\n" LUA_EXEC_DIR "\n" LUA_IGMARK "\n"); lua_setfield(L, -2, "config"); /* set field 'loaded' */ luaL_getsubtable(L, LUA_REGISTRYINDEX, "_LOADED"); lua_setfield(L, -2, "loaded"); /* set field 'preload' */ luaL_getsubtable(L, LUA_REGISTRYINDEX, "_PRELOAD"); lua_setfield(L, -2, "preload"); lua_pushglobaltable(L); lua_pushvalue(L, -2); /* set 'package' as upvalue for next lib */ luaL_setfuncs(L, ll_funcs, 1); /* open lib into global table */ lua_pop(L, 1); /* pop global table */ return 1; /* return 'package' table */ }
Any hints would be greatly appreciated! Lei
________________________________________ From: Lei Zhou Sent: Tuesday, June 11, 2019 7:10 PM To: Adam Lackorzynski; l4-hackers@os.inf.tu-dresden.de Subject: RE: How to enable Guest Linux VM on Raspberry PI3?
Hi Adam,
I built Fiasco/L4Re and L4Linux vmlinuz, my own ramdisk-armv7.cpio.gz.
This is my l4linux.cfg content: ============================================== -- vim:set ft=lua:
local L4 = require("L4");
L4.default_loader:start({ log = L4.Env.log:m("rws"), }, "rom/vmlinuz mem=64M console=ttyLv0 " .. "l4x_rd=rom/ramdisk-armv7.cpio.gz" .. L4.Info.arch() .. ".rd " .. "root=1:0 ramdisk_size=4000 init=/bin/sh"); ===================================================== This is my module.list:
entry L4Linux-rpi3 roottask moe rom/l4linux.cfg module l4linux.cfg module l4re module ned module vmlinuz module ramdisk-armv7.cpio.gz =======================================================
I made final bootstrap_L4Linux-rpi3.uimage.
=====================================================
After Rpi3 booted up, it stopped at NED exception and hangs! And log is pasted as below:
[0:20000000;ffffffff] MOE: Hello world MOE: found 501008 KByte free memory MOE: found RAM from 54000 to 1f000000 MOE: allocated 495 KByte for the page array @0x55000 MOE: virtual user address space [0-bfffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [1100000-1100147] [C:107000] l4linux.cfg BOOTFS: [1101000-11164f0] [C:109000] l4re BOOTFS: [1117000-117876c] [C:10b000] ned BOOTFS: [1179000-15ac4d0] [C:10d000] vmlinuz BOOTFS: [15ad000-1717400] [C:10f000] ramdisk-armv7.cpio.gz MOE: cmdline: moe rom/l4linux.cfg MOE: Starting: rom/ned rom/l4linux.cfg MOE: loading 'rom/ned' Ned says: Hi World! L4Re: rom/ned: Unhandled exception: PC=0x102cb30 PFA=20a960 LdrFlgs=0 ========================================================
$arm-***-objdump -ldSC ned // gives following disassembly at above PC:
102cb1c: e1a00004 mov r0, r4 102cb20: e34f1ff0 movt r1, #65520 ; 0xfff0 102cb24: e30c825c movw r8, #49756 ; 0xc25c 102cb28: ebffa155 bl 1015084 <lua_rawsetp(lua_State*, int, void const*)> 102cb2c: ed9f0b71 vldr d0, [pc, #452] ; 102ccf8 <luaopen_package(lua_State*)+0x24c> 102cb30: e1a00004 mov r0, r4 102cb34: e3a01088 mov r1, #136 ; 0x88 102cb38: e3406102 movt r6, #258 ; 0x102 102cb3c: ebffe4f1 bl 1025f08 <luaL_checkversion_(lua_State*, double, unsigned int)> =====================================================
Can you please help me? or get me familiar with how to debug on the L4Re system?
Much appreciated! Lei
________________________________________ From: Lei Zhou Sent: Friday, June 07, 2019 5:34 PM To: Adam Lackorzynski; l4-hackers@os.inf.tu-dresden.de Subject: RE: How to enable Guest Linux VM on Raspberry PI3?
Thanks Adam & Jakub for your promptly support.
1> I will experiment L4Linux on my Raspberry PI3 to get guest Linux VM up. 2> Yes, after I sycned to lastest <kernkonzept> code base and was able to make Linux VM upworking on the QEMU virtual ARM platform. Was using the source code from https://urldefense.proofpoint.com/v2/url?u=https-3A__svn.l4re.org_repos_oc_l.... Seems they are not exactly the same.
Have a great weekend!
Lei ________________________________________ From: l4-hackers [l4-hackers-bounces@os.inf.tu-dresden.de] on behalf of Adam Lackorzynski [adam@os.inf.tu-dresden.de] Sent: Friday, June 07, 2019 3:54 PM To: l4-hackers@os.inf.tu-dresden.de Subject: Re: How to enable Guest Linux VM on Raspberry PI3?
On Fri Jun 07, 2019 at 18:27:18 +0000, Lei Zhou wrote:
After I brought up L4Re and Fiasco on Raspberry PI3, would like to enable guest Linux VM on top of it.
I'm looking at the link https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_kernkonzept_... and hoping I can do the same thing on Raspberry PI3.
The link seems using hardware-assisted virtualization option uvmm based for guest VM. There seems also L4Linux Paravirtualization option. Which option should I use for me to enable guest LInux VM on Raspberry PI3?
You can only use L4Linux as the Raspberries do not support hardware-assisted virtualization (because they have the wrong interrupt controller).
Adam
In addition, when I followed the link to try on QEMU first, encounter some "vbus" capability issue. I followed the guidance exactly as the link says. However, when I started the command to spawning the Linux VM as: $make E=uvmm-basic qemu
It failed with following log:
============================================ MOE: virtual user address space [0-7fffffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [41100000-411974b8] [C:107000] uvmm BOOTFS: [41198000-411c4e58] [C:109000] l4re BOOTFS: [411c5000-41246770] [C:10b000] ned BOOTFS: [41247000-412475c4] [C:10d000] virt-arm_virt.dtb BOOTFS: [41248000-41430200] [C:10f000] ramdisk-armv8.cpio.gz BOOTFS: [41431000-41431242] [C:111000] uvmm-basic.ned BOOTFS: [41432000-42618a00] [C:113000] Image.gz MOE: cmdline: moe rom/uvmm-basic.ned MOE: Starting: rom/ned rom/uvmm-basic.ned MOE: loading 'rom/ned' Ned says: Hi World! Ned: loading file: 'rom/uvmm-basic.ned' VMM[vmbus]: 'vbus' capability not found. Hardware access not possible for VM. VMM[main]: Hello out there. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device virtio_uart@20000 failed. Disabling device. VMM[]: virtio_net@10000.l4vmm,virtiocap: capability net is invalid. VMM[vm]: Device creation for virtual device virtio_net@10000 failed. Disabling device. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device interrupt-controller failed. Disabling device. VMM: FATAL: Parsing timer interrupt: Argument out of range qemu-system-aarch64: terminating on signal 2 Makefile:6: recipe for target 'do-all-make-goals' failed make: *** [do-all-make-goals] Interrupt =========================================================================
Any feedbacks are greatly appreciated! Lei Zhou
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Adam -- Adam adam@os.inf.tu-dresden.de Lackorzynski https://urldefense.proofpoint.com/v2/url?u=http-3A__os.inf.tu-2Ddresden.de_-... _______________________________________________ l4-hackers mailing list l4-hackers@os.inf.tu-dresden.de https://urldefense.proofpoint.com/v2/url?u=http-3A__os.inf.tu-2Ddresden.de_m...
Hi, but this also indicates that you did not configure L4Linux for ARMv6 or v7, as with those there would not be a swp instruction in the code I believe. For the rpi3 v7 should be selected. Adam On Thu Jun 13, 2019 at 20:58:58 +0000, Lei Zhou wrote:
Never mind and figured out the problem by googling. Need enable "CONFIG_SWP_EMULATE" --- Emulate SWP/SWPB instructions when configuring the L4Linux.
Linux VM is up running on Rpi 3 and will enable other use cases further on Rpi 3.
Thanks, Lei.
________________________________________ From: Lei Zhou Sent: Thursday, June 13, 2019 12:24 PM To: Adam Lackorzynski; l4-hackers@os.inf.tu-dresden.de Subject: RE: How to enable Guest Linux VM on Raspberry PI3?
Thanks Adam, much appreciated! by enabling the FPU fixes the exception.
After I rebuilt the Fiasco and Rpi *.uimage, the logging moves further until the following error:
================================================= Starting binary at 0x3000268, argc=7 argv=0xafff4f8c *argv=0xb1007ff4 argv0=romz External resolver is at 0xa8000b48 ======> L4Linux starting... <======== Linux version 4.19.0-l4-svn63 (lezhou@CI0700000004358) (gcc version 7.4.1 201819 Binary name: rom/vmlinuz This is an AEABI build. Linux kernel command line (6 args): mem=64M console=ttyLv0l4x_rd=rom/ramdisk-ar1 CPU mapping (l:p)[1]: 0:0 Image: 03000000 - 03600000 [6144 KiB]. Areas: Text: 03000000 - 03305000 [3092kB] RO-Data: 03305000 - 033a8000 [652kB] Data: 033e2000 - 034130f4 [196kB] Init: 033be000 - 033e2000 [144kB] BSS: 034130f4 - 0349a000 [539kB] Device scan: Device scan done. l4lx_thread_create: Created thread 41a (cpu0) (u:b3000e00, v:b3000c00, sp:033e3) main thread will be 41a L4x: section-with-init(-data): Virt: 0x3000000 to 0x3499fff [4712 KiB] L4x: section-with-init-text: Virt: 0x3000000 to 0x3499fff [4712 KiB] L4x: data: Virt: 0x3000000 to 0x3499fff [4712 KiB] L4x: Main thread running, waiting... L4x: Memory size: 64MB L4x: Setting superpages for main memory L4x: Adjusted memory start: 03000000 L4x: Main memory: Virt: 0x3600000 to 0x75fffff [65536 KiB] L4x: vmalloc area: 07600000 - 0f600000 L4x: text: Virt: 0x3000000 to 0x3499fff [4712 KiB] Loading: rom/ramdisk-arm.rd INITRD: Size of RAMdisk is 1449KiB RAMdisk from 00002000 to 0016c400 [1449KiB] l4lx_thread_create: Created thread 41f (timer0) (u:b3000a00, v:00000000, sp:034) 'swp(b)' instruction at 03051d28 and faulting. Linux built for the wrong ARM version? 'swp(b)' instruction at 031b3604 and faulting. Linux built for the wrong ARM version? 'swp(b)' instruction at 031b3604 and faulting. .............................................................
Any comments?
Thanks again, Lei
________________________________________ From: l4-hackers [l4-hackers-bounces@os.inf.tu-dresden.de] on behalf of Adam Lackorzynski [adam@os.inf.tu-dresden.de] Sent: Thursday, June 13, 2019 11:43 AM To: l4-hackers@os.inf.tu-dresden.de Subject: Re: How to enable Guest Linux VM on Raspberry PI3?
Hi,
you're hitting a floating point intruction. Do you have FPU support enabled in Fiasco?
Adam
On Thu Jun 13, 2019 at 00:35:26 +0000, Lei Zhou wrote:
I put in some printf(...) into ../pkg/ned/src/lua.cc for debugging.
the exception seems throwing out from following function: lua.cc ---> int lua(....) ----> ================================= for (int i = 0; libs[i].func; ++i) { printf("Ned says: Hi World! %s 021\n", libs[i].name); luaL_requiref(L, libs[i].name, libs[i].func, 1); lua_pop(L, 1); }
printf("Ned says: Hi World! leizhou 01\n"); ===========================================
When it's loading "package" library by invoking this function, it raises this exception.
LUAMOD_API int luaopen_package (lua_State *L) { createclibstable(L); luaL_newlib(L, pk_funcs); /* create 'package' table */ createsearcherstable(L); /* set field 'path' */ setpath(L, "path", LUA_PATHVARVERSION, LUA_PATH_VAR, LUA_PATH_DEFAULT); /* set field 'cpath' */ setpath(L, "cpath", LUA_CPATHVARVERSION, LUA_CPATH_VAR, LUA_CPATH_DEFAULT); /* store config information */ lua_pushliteral(L, LUA_DIRSEP "\n" LUA_PATH_SEP "\n" LUA_PATH_MARK "\n" LUA_EXEC_DIR "\n" LUA_IGMARK "\n"); lua_setfield(L, -2, "config"); /* set field 'loaded' */ luaL_getsubtable(L, LUA_REGISTRYINDEX, "_LOADED"); lua_setfield(L, -2, "loaded"); /* set field 'preload' */ luaL_getsubtable(L, LUA_REGISTRYINDEX, "_PRELOAD"); lua_setfield(L, -2, "preload"); lua_pushglobaltable(L); lua_pushvalue(L, -2); /* set 'package' as upvalue for next lib */ luaL_setfuncs(L, ll_funcs, 1); /* open lib into global table */ lua_pop(L, 1); /* pop global table */ return 1; /* return 'package' table */ }
Any hints would be greatly appreciated! Lei
________________________________________ From: Lei Zhou Sent: Tuesday, June 11, 2019 7:10 PM To: Adam Lackorzynski; l4-hackers@os.inf.tu-dresden.de Subject: RE: How to enable Guest Linux VM on Raspberry PI3?
Hi Adam,
I built Fiasco/L4Re and L4Linux vmlinuz, my own ramdisk-armv7.cpio.gz.
This is my l4linux.cfg content: ============================================== -- vim:set ft=lua:
local L4 = require("L4");
L4.default_loader:start({ log = L4.Env.log:m("rws"), }, "rom/vmlinuz mem=64M console=ttyLv0 " .. "l4x_rd=rom/ramdisk-armv7.cpio.gz" .. L4.Info.arch() .. ".rd " .. "root=1:0 ramdisk_size=4000 init=/bin/sh"); ===================================================== This is my module.list:
entry L4Linux-rpi3 roottask moe rom/l4linux.cfg module l4linux.cfg module l4re module ned module vmlinuz module ramdisk-armv7.cpio.gz =======================================================
I made final bootstrap_L4Linux-rpi3.uimage.
=====================================================
After Rpi3 booted up, it stopped at NED exception and hangs! And log is pasted as below:
[0:20000000;ffffffff] MOE: Hello world MOE: found 501008 KByte free memory MOE: found RAM from 54000 to 1f000000 MOE: allocated 495 KByte for the page array @0x55000 MOE: virtual user address space [0-bfffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [1100000-1100147] [C:107000] l4linux.cfg BOOTFS: [1101000-11164f0] [C:109000] l4re BOOTFS: [1117000-117876c] [C:10b000] ned BOOTFS: [1179000-15ac4d0] [C:10d000] vmlinuz BOOTFS: [15ad000-1717400] [C:10f000] ramdisk-armv7.cpio.gz MOE: cmdline: moe rom/l4linux.cfg MOE: Starting: rom/ned rom/l4linux.cfg MOE: loading 'rom/ned' Ned says: Hi World! L4Re: rom/ned: Unhandled exception: PC=0x102cb30 PFA=20a960 LdrFlgs=0 ========================================================
$arm-***-objdump -ldSC ned // gives following disassembly at above PC:
102cb1c: e1a00004 mov r0, r4 102cb20: e34f1ff0 movt r1, #65520 ; 0xfff0 102cb24: e30c825c movw r8, #49756 ; 0xc25c 102cb28: ebffa155 bl 1015084 <lua_rawsetp(lua_State*, int, void const*)> 102cb2c: ed9f0b71 vldr d0, [pc, #452] ; 102ccf8 <luaopen_package(lua_State*)+0x24c> 102cb30: e1a00004 mov r0, r4 102cb34: e3a01088 mov r1, #136 ; 0x88 102cb38: e3406102 movt r6, #258 ; 0x102 102cb3c: ebffe4f1 bl 1025f08 <luaL_checkversion_(lua_State*, double, unsigned int)> =====================================================
Can you please help me? or get me familiar with how to debug on the L4Re system?
Much appreciated! Lei
________________________________________ From: Lei Zhou Sent: Friday, June 07, 2019 5:34 PM To: Adam Lackorzynski; l4-hackers@os.inf.tu-dresden.de Subject: RE: How to enable Guest Linux VM on Raspberry PI3?
Thanks Adam & Jakub for your promptly support.
1> I will experiment L4Linux on my Raspberry PI3 to get guest Linux VM up. 2> Yes, after I sycned to lastest <kernkonzept> code base and was able to make Linux VM upworking on the QEMU virtual ARM platform. Was using the source code from https://urldefense.proofpoint.com/v2/url?u=https-3A__svn.l4re.org_repos_oc_l.... Seems they are not exactly the same.
Have a great weekend!
Lei ________________________________________ From: l4-hackers [l4-hackers-bounces@os.inf.tu-dresden.de] on behalf of Adam Lackorzynski [adam@os.inf.tu-dresden.de] Sent: Friday, June 07, 2019 3:54 PM To: l4-hackers@os.inf.tu-dresden.de Subject: Re: How to enable Guest Linux VM on Raspberry PI3?
On Fri Jun 07, 2019 at 18:27:18 +0000, Lei Zhou wrote:
After I brought up L4Re and Fiasco on Raspberry PI3, would like to enable guest Linux VM on top of it.
I'm looking at the link https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_kernkonzept_... and hoping I can do the same thing on Raspberry PI3.
The link seems using hardware-assisted virtualization option uvmm based for guest VM. There seems also L4Linux Paravirtualization option. Which option should I use for me to enable guest LInux VM on Raspberry PI3?
You can only use L4Linux as the Raspberries do not support hardware-assisted virtualization (because they have the wrong interrupt controller).
Adam
In addition, when I followed the link to try on QEMU first, encounter some "vbus" capability issue. I followed the guidance exactly as the link says. However, when I started the command to spawning the Linux VM as: $make E=uvmm-basic qemu
It failed with following log:
============================================ MOE: virtual user address space [0-7fffffffff] MOE: rom name space cap -> [C:103000] MOE: rwfs name space cap -> [C:105000] BOOTFS: [41100000-411974b8] [C:107000] uvmm BOOTFS: [41198000-411c4e58] [C:109000] l4re BOOTFS: [411c5000-41246770] [C:10b000] ned BOOTFS: [41247000-412475c4] [C:10d000] virt-arm_virt.dtb BOOTFS: [41248000-41430200] [C:10f000] ramdisk-armv8.cpio.gz BOOTFS: [41431000-41431242] [C:111000] uvmm-basic.ned BOOTFS: [41432000-42618a00] [C:113000] Image.gz MOE: cmdline: moe rom/uvmm-basic.ned MOE: Starting: rom/ned rom/uvmm-basic.ned MOE: loading 'rom/ned' Ned says: Hi World! Ned: loading file: 'rom/uvmm-basic.ned' VMM[vmbus]: 'vbus' capability not found. Hardware access not possible for VM. VMM[main]: Hello out there. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device virtio_uart@20000 failed. Disabling device. VMM[]: virtio_net@10000.l4vmm,virtiocap: capability net is invalid. VMM[vm]: Device creation for virtual device virtio_net@10000 failed. Disabling device. VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus VMM[vm]: Device creation for virtual device interrupt-controller failed. Disabling device. VMM: FATAL: Parsing timer interrupt: Argument out of range qemu-system-aarch64: terminating on signal 2 Makefile:6: recipe for target 'do-all-make-goals' failed make: *** [do-all-make-goals] Interrupt =========================================================================
Any feedbacks are greatly appreciated! Lei Zhou
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Adam -- Adam adam@os.inf.tu-dresden.de Lackorzynski https://urldefense.proofpoint.com/v2/url?u=http-3A__os.inf.tu-2Ddresden.de_-...
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Adam -- Adam adam@os.inf.tu-dresden.de Lackorzynski http://os.inf.tu-dresden.de/~adam/
participants (3)
-
Adam Lackorzynski -
Jakub Jermar -
Lei Zhou