Hello all, Reference to seL4 Docs/Projects/CAmkES ARM VMM, I have successfully run a VM (a Linux guest OS and config VM_RAM_SIZE = 1024MB) on a new ARM(ArmV8a CortexA55) platform. But when I tried to increase the ram size assigned to VM, I encountered the following error: ============================================================================== ram_ut_alloc_iterator@guest_ram.c:295 Failed to allocate page map_vm_memory_reservation@guest_memory.c:470 Failed to get frame for reservation address 0xae7c0000 reservation_size:60000000 …… vm_ram_touch@guest_ram.c:160 Failed to touch ram region: Not registered RAM region 32 bit ARM insts not decoded Pagefault from [Linux]: write fault @ PC: 0xffff000008d9132c IPA: 0xaffff000, FSR: 0x92000046 Context: x0: 0xffff7dfffe639000 x1: 0x0 x2: 0xfc0 x3: 0x4 x4: 0x0 x5: 0x40 x6: 0x3f x7: 0x0 x8: 0xffff7dfffe639000 x9: 0x0 x10: 0x1000 x11: 0x6f01c3b8 x12: 0xc0000000 pc: 0xffff000008d9132c x14: 0x0 sp: 0xffff000009668d80 spsr: 0x40000085 x13: 0x60000000 x15: 0x4 x16: 0x1800 x17: 0xffff7dfffe81c3b4 x18: 0x8 x19: 0xaffff000 x20: 0xffff0000096a1fd0 x21: 0xffff7dfffe80009c x22: 0x58389df x23: 0xffff0000091ce000 x24: 0x4b78e0 x25: 0x47b87c x26: 0x0 x27: 0xa0000000047b818 x28: 0x614f0018 x29: 0xffff000009643eb0 x30: 0xffff0000094f7ad0 m-------- Assertion failed: rt >= 0 (/home/hjl/workdir/vmm_sel4_sdx_android/projects/seL4_projects_libs/libsel4vm/src/arch/arm/fault.c: fault_get_width: 623) Attach config file for reference： 1. overlay dts reserved-memory { #address-cells = < 0x02 >; #size-cells = < 0x02 >; ranges; vm-memory@60000000 { reg = < 0x00 0x60000000 0x00 0x60000000 >; no-map; }; }; 1. devices.camkes #define VM_INITRD_MAX_SIZE 0x5000000 //80 MB #define VM_RAM_BASE 0x60000000 #define VM_RAM_OFFSET 0 #define VM_RAM_SIZE 0x60000000 #define VM_DTB_ADDR 0x6F000000 #define VM_INITRD_ADDR 0x6A000000 vm0.untyped_mmios = [ “0x35436000:12”, // Interrupt Controller Virtual CPU interface (Virtual Machine view) /* The purpose of these untyped regions is to force the untyped * allocator to treat this memory region as reserved so that when we * try to ensure that the VMM is placed into this region in RAM, it * will definitely be available for placement. * * This address pertains to vm-memory@60000000 in the overlay DTS */ “0x60000000:28”, // RAM “0x70000000:28”, // RAM “0x80000000:28”, // RAM “0x90000000:28”, // RAM “0xa0000000:28”, // RAM “0xb0000000:28”, // RAM ]; 1. guest linux dts memory@60000000 { device_type = “memory”; reg = <0x00 0x60000000 0x00 0x60000000>; }; ============================================================================== In contrast, I tried to expand the VM memory based on QEMU and encountered the same problem. Attach config file for reference： 1. settings.cmake if(${PLATFORM} STREQUAL “qemu-arm-virt”) set(QEMU_MEMORY “4096”) set(KernelArmCPU cortex-a53 CACHE STRING “” FORCE) set(VmInitRdFile ON CACHE BOOL “” FORCE) endif() 1. overlay-reserve-vm-memory.dts reserved-memory { #address-cells = < 0x02 >; #size-cells = < 0x02 >; ranges; vm-memory@40000000 { reg = <0x0 0x40000000 0x0 0x50000000>; no-map; }; }; 1. devices.camkes #define VM_INITRD_MAX_SIZE 0x1900000 //25 MB #define VM_RAM_BASE 0x40000000 #define VM_RAM_SIZE 0x50000000 #define VM_RAM_OFFSET 0x00000000 #define VM_DTB_ADDR 0x4F000000 #define VM_INITRD_ADDR 0x4D700000 vm0.untyped_mmios = [ “0x8040000:12”, // Interrupt Controller Virtual CPU interface (Virtual Machine view) “0x40000000:29”, // Linux kernel memory regions “0x60000000:29”, // Linux kernel memory regions “0x80000000:28”, // Linux kernel memory regions ]; 1. guest linux dts memory@40000000 { reg = <0x0 0x40000000 0x0 0x50000000>; device_type = “memory”; }; Is there any memory limit for VM? or Configuration problem? Anyways anyone any help can provide would be awesome and thanks in advance for any help! 邮件免责申明 Email Disclaimer 本邮件仅供本邮件指定收件人使用，其所载内容可能因含有保密信息或其它原因而不得披露。除本公司及本邮件指定收件人外，任何人不得公开、传播、分发、复制、印刷或使用本邮件之任何部分或其所载之任何内容。如您误收到本邮件，请立即通知本公司，并将原始邮件、附件及其所有复本从系统中删除，切勿使用。 This email is for the use of the designated receivers only，and the content is not allowed to be disclosed due to the confidential information or other reasons. Except for the Company and the designated receivers of this email, no one shall disclose, disseminate, distribute, copy, print or use any part of this email or any content contained therein. If you receive this email by mistake, please notify the Company immediately, and delete the original email, attachments and all copies from the system. Do not use it. 网络通信可能含有计算机病毒或其它缺陷，可能无法准确和/或及时送达其它系统，亦可能受阻而不为本公司或本邮件指定收件人所知。本公司对此类错误或遗漏以及任何因使用本邮件而引致之任何损失概不承担责任。 Network communication may contain computer viruses or other defects, which may not be delivered to other systems accurately and / or in time, or may be blocked by the Company or the designated receivers of this email. The Company shall not be liable for such errors or omissions and for any loss arising from this email. 本邮件所载任何内容仅作为业务层面交流与参考，除非明确说明，本公司不对邮件所载内容之准确性、完整性或公平性等承担任何法律责任。 Any contents contained in this email are only for the purpose of business communication and reference only. Unless explicitly stated otherwise, the Company shall not assume any legal responsibility for the accuracy, completeness or fairness of the content contained in the email. 本邮件指定收件人应特别注意：本邮件所载任何内容不构成本公司对本邮件指定收件人和/或其所属商业实体的任何要约、要约邀请或承诺，任何权利义务皆以双方签字盖章的书面文件为准。除经本公司以签字盖章的书面文件确认外，收件人和/或其所属商业实体不得以本邮件所载任何内容作为其向本公司主张任何权利或利益的正式依据。 The designated receivers should pay special attention to the fact that nothing contained in this email shall constitute an offer, invitation or acceptance by the Company to the designated receivers of this email and/or its affiliated business entities, and any rights and obligations are subject to the written documents signed and sealed by both parties. Except from the written document signed ,sealed and confirmed by the Company, the receivers and / or its affiliated business entity shall not rely on anything contained in this email as the formal basis for claiming any rights or interests to the Company.