search for: xen_start_info

...l. 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 when start this kernel as domU. I think I must miss something here. Any ideas about...

...l. 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 when start this kernel as domU. I think I must miss something here. Any ideas about...

...inux. */ - screen_info.orig_video_mode = 3; - screen_info.orig_video_isVGA = 1; - screen_info.orig_video_lines = 25; - screen_info.orig_video_cols = 80; - screen_info.orig_video_ega_bx = 3; - screen_info.orig_video_points = 16; - screen_info.orig_y = screen_info.orig_video_lines - 1; - if (xen_start_info->console.dom0.info_size >= - sizeof(struct dom0_vga_console_info)) { - const struct dom0_vga_console_info *info = - (struct dom0_vga_console_info *)( - (char *)xen_start_info + - xen_start_info->console.dom0.info_off); - dom0_init_screen_info(info); - } + const struct...

...> --- arch/x86/xen/setup.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 15c6c68..ad0047f 100644 --- 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...

Recent Linux tries to make use of this, and has no way of getting at these bits without Xen assisting it. There doesn''t appear to be a way to obtain the same information from UEFI. Signed-off-by: Jan Beulich <jbeulich@suse.com> --- a/xen/arch/x86/boot/trampoline.S +++ b/xen/arch/x86/boot/trampoline.S @@ -184,11 +184,16 @@ trampoline_boot_cpu_entry: * 1. Get memory map.

make balloon driver not return pages which are in [xen_start_info->nr_pages, max_pfn] on ia64. On ia64 memory might be assigned sparsely. In that case xen_start_info->nr_pages and max_pfn doesn''t match while pages which are in [xen_start_info->nr_pages, max_pfn] are used. -- yamahata _______________________________________________ Xen-devel...

...se/arch/xen/x86_64/kernel/setup.c 2005-06-08 01:34:42 -07:00 +++ edited/linux-2.6.11-xen-sparse/arch/xen/x86_64/kernel/setup.c 2005-06-13 14:39:19 -07:00 @@ -727,23 +727,20 @@ void __init setup_arch(char **cmdline_p) acpi_reserve_bootmem(); #endif #ifdef CONFIG_BLK_DEV_INITRD - if (xen_start_info.mod_start) { - if (LOADER_TYPE && INITRD_START) { - if (INITRD_START + INITRD_SIZE <= (end_pfn << PAGE_SHIFT)) { - /* reserve_bootmem_generic(INITRD_START, INITRD_SIZE); */ - initrd_...

...+++ xen-dom0-store/linux-2.6.11-xen-sparse/drivers/xen/privcmd/privcmd.c 2005-06-16 15:12:49.000000000 +1000 @@ -196,6 +196,34 @@ static int privcmd_ioctl(struct inode *i } break; + case IOCTL_PRIVCMD_INITDOMAIN_STORE: + { + extern int do_xenbus_probe(void*); + + if (xen_start_info.store_evtchn != 0) { + ret = -EINVAL; + break; + } + + /* Allocate page. */ + xen_start_info.store_page = get_zeroed_page(GFP_KERNEL); + if (!xen_start_info.store_page) { + ret = -ENOMEM; + break; + } + + /* Initial connect. Setup channel and page. */ + xen_start_info.store_evtchn =...

...fn(MMUEXT_UNPIN_TABLE, 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);

...fn(MMUEXT_UNPIN_TABLE, 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);

Hi all, I got this error starting a domU Started domain <servername> xen_start_info @ffffffff80837000 shared @m00befea000 @ffffffff80107000=@ffffffffff5fd000 [0x802] xen_start_info: @ffffffff80837000 cr3 0000000000101000 pml4p ffffffff80101ff8 pml4e 0000000000103067 (real 00000004ea4f4067) pgdp ffffff8000103ff0 pgde 0000000000105067 (real 00000004e6dca067) pmdp ffffff8000105020...

...7 @@ #include <linux/mm.h> #include <linux/page-flags.h> #include <linux/highmem.h> +#include <linux/console.h> #include <xen/interface/xen.h> #include <xen/interface/physdev.h> @@ -1215,6 +1216,11 @@ asmlinkage void __init xen_start_kernel(void) ? __pa(xen_start_info->mod_start) : 0; boot_params.hdr.ramdisk_size = xen_start_info->mod_len; + if (!is_initial_xendomain()) { + add_preferred_console("tty", 0, NULL); + add_preferred_console("hvc", 0, NULL); + } + /* Start the world */ start_kernel(); } diff --git a/drivers/video/x...

...7 @@ #include <linux/mm.h> #include <linux/page-flags.h> #include <linux/highmem.h> +#include <linux/console.h> #include <xen/interface/xen.h> #include <xen/interface/physdev.h> @@ -1215,6 +1216,11 @@ asmlinkage void __init xen_start_kernel(void) ? __pa(xen_start_info->mod_start) : 0; boot_params.hdr.ramdisk_size = xen_start_info->mod_len; + if (!is_initial_xendomain()) { + add_preferred_console("tty", 0, NULL); + add_preferred_console("hvc", 0, NULL); + } + /* Start the world */ start_kernel(); } diff --git a/drivers/video/x...

...7 @@ #include <linux/mm.h> #include <linux/page-flags.h> #include <linux/highmem.h> +#include <linux/console.h> #include <xen/interface/xen.h> #include <xen/interface/physdev.h> @@ -1215,6 +1216,11 @@ asmlinkage void __init xen_start_kernel(void) ? __pa(xen_start_info->mod_start) : 0; boot_params.hdr.ramdisk_size = xen_start_info->mod_len; + if (!is_initial_xendomain()) { + add_preferred_console("tty", 0, NULL); + add_preferred_console("hvc", 0, NULL); + } + /* Start the world */ start_kernel(); } diff --git a/drivers/video/x...

...es changed, 1 insertions(+), 15 deletions(-) diff --git a/arch/x86/include/asm/xen/hypervisor.h b/arch/x86/include/asm/xen/hypervisor.h index 125f344..d866959 100644 --- a/arch/x86/include/asm/xen/hypervisor.h +++ b/arch/x86/include/asm/xen/hypervisor.h @@ -40,21 +40,7 @@ extern struct start_info *xen_start_info; static inline uint32_t xen_cpuid_base(void) { - uint32_t base, eax, ebx, ecx, edx; - char signature[13]; - - for (base = 0x40000000; base < 0x40010000; base += 0x100) { - cpuid(base, &eax, &ebx, &ecx, &edx); - *(uint32_t *)(signature + 0) = ebx; - *(uint32_t *)(signature...

...es changed, 1 insertions(+), 15 deletions(-) diff --git a/arch/x86/include/asm/xen/hypervisor.h b/arch/x86/include/asm/xen/hypervisor.h index 125f344..d866959 100644 --- a/arch/x86/include/asm/xen/hypervisor.h +++ b/arch/x86/include/asm/xen/hypervisor.h @@ -40,21 +40,7 @@ extern struct start_info *xen_start_info; static inline uint32_t xen_cpuid_base(void) { - uint32_t base, eax, ebx, ecx, edx; - char signature[13]; - - for (base = 0x40000000; base < 0x40010000; base += 0x100) { - cpuid(base, &eax, &ebx, &ecx, &edx); - *(uint32_t *)(signature + 0) = ebx; - *(uint32_t *)(signature...

...es changed, 1 insertions(+), 15 deletions(-) diff --git a/arch/x86/include/asm/xen/hypervisor.h b/arch/x86/include/asm/xen/hypervisor.h index 125f344..d866959 100644 --- a/arch/x86/include/asm/xen/hypervisor.h +++ b/arch/x86/include/asm/xen/hypervisor.h @@ -40,21 +40,7 @@ extern struct start_info *xen_start_info; static inline uint32_t xen_cpuid_base(void) { - uint32_t base, eax, ebx, ecx, edx; - char signature[13]; - - for (base = 0x40000000; base < 0x40010000; base += 0x100) { - cpuid(base, &eax, &ebx, &ecx, &edx); - *(uint32_t *)(signature + 0) = ebx; - *(uint32_t *)(signature...

...date, but it will never be set early). If one vcpu is + * looking at another vcpu's cr3 value, it should use this variable. + */ +DEFINE_PER_CPU(unsigned long, xen_cr3); /* cr3 stored as physaddr */ +DEFINE_PER_CPU(unsigned long, xen_current_cr3); /* actual vcpu cr3 */ struct start_info *xen_start_info; EXPORT_SYMBOL_GPL(xen_start_info); @@ -632,32 +648,36 @@ static unsigned long xen_read_cr3(void) return x86_read_percpu(xen_cr3); } +static void set_current_cr3(void *v) +{ + x86_write_percpu(xen_current_cr3, (unsigned long)v); +} + static void xen_write_cr3(unsigned long cr3) { + struct m...

...date, but it will never be set early). If one vcpu is + * looking at another vcpu's cr3 value, it should use this variable. + */ +DEFINE_PER_CPU(unsigned long, xen_cr3); /* cr3 stored as physaddr */ +DEFINE_PER_CPU(unsigned long, xen_current_cr3); /* actual vcpu cr3 */ struct start_info *xen_start_info; EXPORT_SYMBOL_GPL(xen_start_info); @@ -632,32 +648,36 @@ static unsigned long xen_read_cr3(void) return x86_read_percpu(xen_cr3); } +static void set_current_cr3(void *v) +{ + x86_write_percpu(xen_current_cr3, (unsigned long)v); +} + static void xen_write_cr3(unsigned long cr3) { + struct m...

...,7 @@ #include <linux/mm.h> #include <linux/page-flags.h> #include <linux/highmem.h> +#include <linux/console.h> #include <xen/interface/xen.h> #include <xen/interface/physdev.h> @@ -1209,6 +1210,9 @@ asmlinkage void __init xen_start_kernel(void) ? __pa(xen_start_info->mod_start) : 0; boot_params.hdr.ramdisk_size = xen_start_info->mod_len; + if (!is_initial_xendomain()) + add_preferred_console("hvc", 0, NULL); + /* Start the world */ start_kernel(); }