search for: pt_base

Hi all. I am trying to debug a kernel that I built, and I hope I could see some debug info printing out via XENPRINTF. I use it in the source code of kernel like: XENPRINTF("nr_pages: %ld shared_info: 0x%lx flags: 0x%lx pt_base: 0x%lx " "mod_start: 0x%lx mod_len: 0x%lx\n", xen_start_info->nr_pages, xen_start_info->shared_info, xen_start_info->flags, xen_start_info->pt_base, xen_start_info->mod_start, xen_start_info->mod_len); But it doesn''t print anything out wh...

Hi all. I am trying to debug a kernel that I built, and I hope I could see some debug info printing out via XENPRINTF. I use it in the source code of kernel like: XENPRINTF("nr_pages: %ld shared_info: 0x%lx flags: 0x%lx pt_base: 0x%lx " "mod_start: 0x%lx mod_len: 0x%lx\n", xen_start_info->nr_pages, xen_start_info->shared_info, xen_start_info->flags, xen_start_info->pt_base, xen_start_info->mod_start, xen_start_info->mod_len); But it doesn''t print anything out wh...

...4 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -61,9 +61,9 @@ char * __init xen_memory_setup(void) * - xen_start_info * See comment above "struct start_info" in <xen/interface/xen.h> */ - e820_add_region(__pa(xen_start_info->mfn_list), - xen_start_info->pt_base - xen_start_info->mfn_list, - E820_RESERVED); + reserve_early(__pa(xen_start_info->mfn_list), + __pa(xen_start_info->pt_base), + "XEN START INFO"); sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map); -- 1.6.0.6 ______________________________...

...quot;vtpmmgr" iomem=["fed40,5"] And I get this output when I try xl create -c vtpmmgr-stubdom.cfg: Parsing config from /home/xen_images/vtpmmgr-stubdom.cfg Daemon running with PID 5048 Xen Minimal OS! start_info: 0xa2000(VA) nr_pages: 0x1000 shared_inf: 0x44e09000(MA) pt_base: 0xa5000(VA) nr_pt_frames: 0x5 mfn_list: 0x9a000(VA) mod_start: 0x0(VA) mod_len: 0 flags: 0x0 cmd_line: stack: 0x597e0-0x797e0 MM: Init _text: 0x0(VA) _etext: 0x39357(VA) _erodata: 0x45000(VA) _edata: 0x47c40(VA) stack start: 0x597e0(VA) _end:...

...LE, PFN_DOWN(__pa(pgd))); pin_pagetable_pfn(MMUEXT_PIN_L3_TABLE, - PFN_DOWN(__pa(initial_page_table))); - xen_write_cr3(__pa(initial_page_table)); + PFN_DOWN(__pa_symbol(initial_page_table))); + xen_write_cr3(__pa_symbol(initial_page_table)); memblock_reserve(__pa(xen_start_info->pt_base), xen_start_info->nr_pt_frames * PAGE_SIZE);

...LE, PFN_DOWN(__pa(pgd))); pin_pagetable_pfn(MMUEXT_PIN_L3_TABLE, - PFN_DOWN(__pa(initial_page_table))); - xen_write_cr3(__pa(initial_page_table)); + PFN_DOWN(__pa_symbol(initial_page_table))); + xen_write_cr3(__pa_symbol(initial_page_table)); memblock_reserve(__pa(xen_start_info->pt_base), xen_start_info->nr_pt_frames * PAGE_SIZE);

..."file:/var/vtpmmgr-stubdom.img,hda,w"] name="vtpmmgr" iomem=["fed40,1"] ==== It prints out with below: ======= Parsing config from vtpmmgr.cfg Daemon running with PID 2406 Xen Minimal OS! start_info: 0xa2000(VA) nr_pages: 0x1000 shared_inf: 0xcd7b0000(MA) pt_base: 0xa5000(VA) nr_pt_frames: 0x5 mfn_list: 0x9a000(VA) mod_start: 0x0(VA) mod_len: 0 flags: 0x0 cmd_line: stack: 0x597e0-0x797e0 MM: Init _text: 0x0(VA) _etext: 0x39357(VA) _erodata: 0x45000(VA) _edata: 0x47c40(VA) stack start: 0x597e0(VA) _end:...

..."file:/var/vtpmmgr-stubdom.img,hda,w"] name="vtpmmgr" iomem=["fed40,1"] ==== It prints out with below: ======= Parsing config from vtpmmgr.cfg Daemon running with PID 2406 Xen Minimal OS! start_info: 0xa2000(VA) nr_pages: 0x1000 shared_inf: 0xcd7b0000(MA) pt_base: 0xa5000(VA) nr_pt_frames: 0x5 mfn_list: 0x9a000(VA) mod_start: 0x0(VA) mod_len: 0 flags: 0x0 cmd_line: stack: 0x597e0-0x797e0 MM: Init _text: 0x0(VA) _etext: 0x39357(VA) _erodata: 0x45000(VA) _edata: 0x47c40(VA) stack start: 0x597e0(VA) _end:...

...ges. My kernel is mapped at 0 (due to Mini-OS being there): _text : 0x0 _etext : 0xcaef _edata : 0xe8c4 __bss_start : 0x10000 _end : 0x21590 nr_pages : 3072 start_info : 0x27000 pt_base : 0x2a000 nr_pt_frames : 5 machine_to_phys_mapping: 0xffff800000000000 phys_to_machine_mapping: 0x21000 The Mini-OS source says that free pages follow pt_base + nr_pt_frames + 3 (store, console, something pages). So far so good. So I reserve myself 42 pages for initi...

...s. */ __supported_pte_mask &= ~_PAGE_GLOBAL; +#if 0 if (!xen_initial_domain()) +#endif __supported_pte_mask &= ~(_PAGE_PWT | _PAGE_PCD); __supported_pte_mask |= _PAGE_IOMAP; @@ -1204,10 +1206,6 @@ asmlinkage void __init xen_start_kernel(void) pgd = (pgd_t *)xen_start_info->pt_base; - if (!xen_initial_domain()) - __supported_pte_mask &= ~(_PAGE_PWT | _PAGE_PCD); - - __supported_pte_mask |= _PAGE_IOMAP; /* Don''t do the full vcpu_info placement stuff until we have a possible map and a non-dummy shared_info. */ per_cpu(xen_vcpu, 0) = &HYPERVISOR_shar...

...quot;vtpmmgr" iomem=["fed40,5"] And I get this output when I try xl create -c vtpmmgr-stubdom.cfg: Parsing config from /home/xen_images/vtpmmgr-stubdom.cfg Daemon running with PID 5048 Xen Minimal OS! start_info: 0xa2000(VA) nr_pages: 0x1000 shared_inf: 0x44e09000(MA) pt_base: 0xa5000(VA) nr_pt_frames: 0x5 mfn_list: 0x9a000(VA) mod_start: 0x0(VA) mod_len: 0 flags: 0x0 cmd_line: stack: 0x597e0-0x797e0 MM: Init _text: 0x0(VA) _etext: 0x39357(VA) _erodata: 0x45000(VA) _edata: 0x47c40(VA) stack start: 0x597e0(VA) _end:...

This series updates the boot protocol to 2.07 and uses it to implement paravirtual booting. This allows the bootloader to tell the kernel what kind of hardware/pseudo-hardware environment it's coming up under, and the kernel can use the appropriate boot sequence code. Specifically: - Update the boot protocol to 2.07, which adds fields to specify the hardware subarchitecture and some

This series updates the boot protocol to 2.07 and uses it to implement paravirtual booting. This allows the bootloader to tell the kernel what kind of hardware/pseudo-hardware environment it's coming up under, and the kernel can use the appropriate boot sequence code. Specifically: - Update the boot protocol to 2.07, which adds fields to specify the hardware subarchitecture and some

This series updates the boot protocol to 2.07 and uses it to implement paravirtual booting. This allows the bootloader to tell the kernel what kind of hardware/pseudo-hardware environment it's coming up under, and the kernel can use the appropriate boot sequence code. Specifically: - Update the boot protocol to 2.07, which adds fields to specify the hardware subarchitecture and some

[ This patch depends on the cross-architecture ELF cleanup patch. ] This series updates the boot protocol to 2.07 and uses it to implement paravirtual booting. This allows the bootloader to tell the kernel what kind of hardware/pseudo-hardware environment it's coming up under, and the kernel can use the appropriate boot sequence code. Specifically: - Update the boot protocol to 2.07, which

[ This patch depends on the cross-architecture ELF cleanup patch. ] This series updates the boot protocol to 2.07 and uses it to implement paravirtual booting. This allows the bootloader to tell the kernel what kind of hardware/pseudo-hardware environment it's coming up under, and the kernel can use the appropriate boot sequence code. Specifically: - Update the boot protocol to 2.07, which

...ut as far as I understand the source code and the README, it should continue by printing the current time in regular intervals, which it does not. Here is the output I receive: ---------------------------------- Xen Minimal OS! start_info: c001d000 nr_pages: 8192 shared_inf: 00be3000 pt_base: c0020000 mod_start: 0x0 mod_len: 0 flags: 0x0 cmd_line: MM: Init _text: c0000000 _etext: c0009577 _edata: c000a604 stack start: c0011e40 _end: c00142a4 start_pfn: 25 max_pfn: 2000 Mapping memory range 0xc0400000 - 0xc2000000 MM:...

...- a/extras/mini-os/arch/x86/traps.c Fri Jan 18 15:55:13 2008 +0000 +++ b/extras/mini-os/arch/x86/traps.c Fri Jan 18 16:02:32 2008 +0000 @@ -118,6 +118,46 @@ void page_walk(unsigned long virt_addres } +static int handle_cow(unsigned long addr) { + pgentry_t *tab = (pgentry_t *)start_info.pt_base, page; + unsigned long new_page; + int rc; + +#if defined(__x86_64__) + page = tab[l4_table_offset(addr)]; + if (!(page & _PAGE_PRESENT)) + return 0; + tab = pte_to_virt(page); +#endif +#if defined(__x86_64__) || defined(CONFIG_X86_PAE) + page = tab[l3_table_offset(addr...

...hvmachine-dm 2 32 1 -b---- 8.2 and qemu.log : Using config file "/etc/xen/vm/hvmachine-dm". Started domain hvmachine-dm Xen Minimal OS! ^Mstart_info: 0x311000 ^M nr_pages: 8192 shared_inf: 001d1000 ^M pt_base: 0x314000 mod_start: 0x0 ^M mod_len: 0 ^M flags: 0x0 ^M cmd_line: -d 1 ^M stack: 0x2e8620-0x308620 ^MMM: Init ^M _text: 0x0 ^M _etext: 0xd8828 ^M _erodata: 0x105000 ^M _edata: 0x1101e8 ^M stack start: 0x2e8620 ^M _end: 0x308db8 ^M star...

This patch series contains a set of patches making minios rather easier to use, from an application development point of view. Overview of patches: 1 Command line argument parsing support, from Xen. 2 Weak console handler function. 3 Build system tweaks for application directories. 4 Trailing whitespace cleanup. (because it is very messy) Patch 4 is likely to be more controversial than