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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-ia64-devel] Could you tell me howto run xen on ski?
Hi Isaku -- Do you require an initrd for booting your dom0? With a one line change in xensetup.c, I am able to boot Xen on ski without an initrd. However, I think the one-line fix would break your proposed patch to the bootloader. I think an initrd is only required if you need to dynamically load modules and I think the ski config is self-contained. Thanks, Dan > -----Original Message----- > From: xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx > [mailto:xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf > Of Isaku Yamahata > Sent: Monday, December 05, 2005 1:35 AM > To: Matsumoto > Cc: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx > Subject: Re: [Xen-ia64-devel] Could you tell me howto run xen on ski? > > Hi. > > On Fri, Dec 02, 2005 at 06:52:47PM +0900, Matsumoto wrote: > > > I am interested in running ski for Xen development. > > I have also tried to boot xen on ski. > With following patch, I can load xen, dom0 image and initrd image. > But dom0 panics during its boot procedure for now. > > Its usage is as follows. > ski bootloader vmm=<path to xen elf image> image=<path to > vmlinux elf image> initrd=<path to initrd image> <parameter...> > ski bootloader <vmlinux elf image> <parameter...> > > Singed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx> > > -- > diff -ruNp -X linux-2.6.14.2/Documentation/dontdiff > linux-2.6.14.2/arch/ia64/hp/sim/boot.orig/bootloader.c > linux-2.6.14.2/arch/ia64/hp/sim/boot/bootloader.c > --- linux-2.6.14.2/arch/ia64/hp/sim/boot.orig/bootloader.c > 2005-11-11 14:33:12.000000000 +0900 > +++ linux-2.6.14.2/arch/ia64/hp/sim/boot/bootloader.c > 2005-12-05 16:45:51.000000000 +0900 > @@ -24,6 +24,8 @@ struct task_struct; /* forward declarati > #include <asm/system.h> > > #include "ssc.h" > +#include "xen_boot_param.h" > +#define running_on_xen 0 > > struct disk_req { > unsigned long addr; > @@ -36,7 +38,7 @@ struct disk_stat { > }; > > extern void jmp_to_kernel (unsigned long bp, unsigned long e_entry); > -extern struct ia64_boot_param *sys_fw_init (const char > *args, int arglen); > +extern struct xen_ia64_boot_param *sys_fw_init (const char > *args, int arglen, __u64 initrd_start, __u64 initrd_size, > __u64 domain_start, __u64 domain_size); > extern void debug_break (void); > > static void > @@ -51,6 +53,77 @@ cons_write (const char *buf) > } > } > > +static void > +skip_space(char** args, long* arglen) > +{ > + while (**args == ' ' && **args != '\0' && *arglen > 0) { > + (*args)++; > + (*arglen)--; > + } > +} > + > +static void > +find_space(char** args, long* arglen) > +{ > + while (**args != ' ' && **args != '\0' && *arglen > 0) { > + (*args)++; > + (*arglen)--; > + } > +} > + > +void > +set_nul(char** args, long* arglen) > +{ > + if (**args == ' ') { > + **args = '\0'; > + (*args)++; > + (*arglen)--; > + } > +} > + > +__u64 > +roundup(__u64 n) > +{ > +#define ALIGN_SIZE (4 * 1024 * 1024) > + return (n + (ALIGN_SIZE - 1)) & ~(ALIGN_SIZE - 1) ; > +} > + > +__u64 > +load_file(char* path, __u64 mem) > +{ > +#define READ_SIZE (4 * 1024 * 1024) > + struct disk_req req; > + unsigned long off; > + > + struct disk_stat stat; > + > + int fd = ssc((long)path, 1, 0, 0, SSC_OPEN); > + if (fd < 0) { > + cons_write(path); > + cons_write(": file not found, reboot now\n"); > + for(;;); > + } > + > + off = 0; > + do { > + req.len = READ_SIZE; > + req.addr = mem; > + ssc(fd, 1, (long) &req, off, SSC_READ); > + > + stat.fd = fd; > + ssc((long) &stat, 0, 0, 0, SSC_WAIT_COMPLETION); > + > + off += READ_SIZE; > + mem += READ_SIZE; > + } while (stat.count == READ_SIZE); > + > + off -= READ_SIZE; > + off += stat.count; > + ssc(fd, 0, 0, 0, SSC_CLOSE); > + > + return off; > +} > + > #define MAX_ARGS 32 > > void > @@ -65,9 +138,26 @@ start_bootloader (void) > struct elfhdr *elf; > struct elf_phdr *elf_phdr; /* program header */ > unsigned long e_entry, e_phoff, e_phnum; > - register struct ia64_boot_param *bp; > + register struct xen_ia64_boot_param *bp; > char *kpath, *args; > long arglen = 0; > + __u64 max_loaded = 0; > + > + char *domain_path = NULL; > + __u64 domain_start = 0; > + __u64 domain_size = 0; > + > + char *initrd_path = NULL; > + __u64 initrd_start = 0; > + __u64 initrd_size = 0; > + > + // kpath: vmlinux or xen > + // domain_path: NULL or dom0 kernel image > + // domain_start: 0 or image addrss > + // domain_size 0 or image size > + // initrd_path: NULL or initrd path > + // initrd_start: 0 or initrd addrsss > + // initrd_size: 0 or initrd size > > ssc(0, 0, 0, 0, SSC_CONSOLE_INIT); > > @@ -85,11 +175,45 @@ start_bootloader (void) > kpath = "vmlinux"; > args = buffer; > if (arglen > 0) { > - kpath = buffer; > - while (*args != ' ' && *args != '\0') > - ++args, --arglen; > - if (*args == ' ') > - *args++ = '\0', --arglen; > + skip_space(&args, &arglen); > +#define VMM_STR "vmm=" > +#define VMM_STR_LEN 4 > +#define IMAGE_STR "image=" > +#define IMAGE_STR_LEN 6 > +#define INITRD_STR "initrd=" > +#define INITRD_STR_LEN 7 > + if (arglen > VMM_STR_LEN && > + strncmp(args, VMM_STR, VMM_STR_LEN) == 0) { > + args += VMM_STR_LEN; > + arglen -= VMM_STR_LEN; > + kpath = args; > + find_space(&args, &arglen); > + set_nul(&args, &arglen); > + > + skip_space(&args, &arglen); > + if (arglen > IMAGE_STR_LEN && > + strncmp(args, IMAGE_STR, > IMAGE_STR_LEN) == 0) { > + args += IMAGE_STR_LEN; > + arglen -= IMAGE_STR_LEN; > + domain_path = args; > + find_space(&args, &arglen); > + set_nul(&args, &arglen); > + } > + > + skip_space(&args, &arglen); > + if (arglen > INITRD_STR_LEN && > + strncmp(args, INITRD_STR, > INITRD_STR_LEN) == 0) { > + args += INITRD_STR_LEN; > + arglen -= INITRD_STR_LEN; > + initrd_path = args; > + find_space(&args, &arglen); > + set_nul(&args, &arglen); > + } > + } else { > + kpath = buffer; > + find_space(&args, &arglen); > + set_nul(&args, &arglen); > + } > } > > if (arglen <= 0) { > @@ -156,17 +280,47 @@ start_bootloader (void) > ssc((long) &stat, 0, 0, 0, SSC_WAIT_COMPLETION); > memset((char *)__pa(elf_phdr->p_paddr) + > elf_phdr->p_filesz, 0, > elf_phdr->p_memsz - elf_phdr->p_filesz); > + if (max_loaded < __pa(elf_phdr->p_paddr) + > elf_phdr->p_filesz) { > + max_loaded = __pa(elf_phdr->p_paddr) + > elf_phdr->p_filesz; > + } > } > ssc(fd, 0, 0, 0, SSC_CLOSE); > > + if (domain_path != NULL) { > + cons_write("loading "); > + cons_write(domain_path); > + cons_write("...\n"); > +#define MAX_DOMAIN_IMAGE_SIZE (64 * 1024 * 1024) > //XXX work around > + max_loaded = roundup(max_loaded + > MAX_DOMAIN_IMAGE_SIZE); > + domain_start = max_loaded; > + domain_size = load_file(domain_path, domain_start); > + max_loaded += domain_size; > + } > + > + if (initrd_path != NULL) { > + cons_write("loading "); > + cons_write(initrd_path); > + cons_write("...\n"); > + > + max_loaded = roundup(max_loaded + > MAX_DOMAIN_IMAGE_SIZE); > + > + initrd_start = max_loaded; > + initrd_size = load_file(initrd_path, initrd_start); > + max_loaded += initrd_size; > + } > + > cons_write("starting kernel...\n"); > > /* fake an I/O base address: */ > ia64_setreg(_IA64_REG_AR_KR0, 0xffffc000000UL); > > - bp = sys_fw_init(args, arglen); > + bp = sys_fw_init(args, arglen, > + initrd_start, initrd_size, > domain_start, domain_size); > > ssc(0, (long) kpath, 0, 0, SSC_LOAD_SYMBOLS); > + if (domain_path != NULL) { > + ssc(0, (long) domain_path, 0, 0, SSC_LOAD_SYMBOLS); > + } > > debug_break(); > jmp_to_kernel((unsigned long) bp, e_entry); > diff -ruNp -X linux-2.6.14.2/Documentation/dontdiff > linux-2.6.14.2/arch/ia64/hp/sim/boot.orig/fw-emu.c > linux-2.6.14.2/arch/ia64/hp/sim/boot/fw-emu.c > --- linux-2.6.14.2/arch/ia64/hp/sim/boot.orig/fw-emu.c > 2005-12-05 14:14:59.000000000 +0900 > +++ linux-2.6.14.2/arch/ia64/hp/sim/boot/fw-emu.c > 2005-12-05 14:47:26.000000000 +0900 > @@ -16,6 +16,7 @@ > #include <asm/sal.h> > > #include "ssc.h" > +#include "xen_boot_param.h" > > #define MB (1024*1024UL) > > @@ -27,7 +28,7 @@ > # define NUM_MEM_DESCS 16 > #endif > > -static char fw_mem[( sizeof(struct ia64_boot_param) > +static char fw_mem[( sizeof(struct xen_ia64_boot_param) > + sizeof(efi_system_table_t) > + sizeof(efi_runtime_services_t) > + 1*sizeof(efi_config_table_t) > @@ -237,8 +238,10 @@ sal_emulator (long index, unsigned long > return ((struct sal_ret_values) {status, r9, r10, r11}); > } > > -struct ia64_boot_param * > -sys_fw_init (const char *args, int arglen) > +struct xen_ia64_boot_param * > +sys_fw_init (const char *args, int arglen, > + __u64 initrd_start, __u64 initrd_size, > + __u64 domain_start, __u64 domain_size) > { > efi_system_table_t *efi_systab; > efi_runtime_services_t *efi_runtime; > @@ -247,7 +250,7 @@ sys_fw_init (const char *args, int argle > efi_memory_desc_t *efi_memmap, *md; > unsigned long *pal_desc, *sal_desc; > struct ia64_sal_desc_entry_point *sal_ed; > - struct ia64_boot_param *bp; > + struct xen_ia64_boot_param *bp; > unsigned char checksum = 0; > char *cp, *cmd_line; > int i = 0; > @@ -350,7 +353,7 @@ sys_fw_init (const char *args, int argle > /* simulate free memory at physical address zero */ > MAKE_MD(EFI_BOOT_SERVICES_DATA, EFI_MEMORY_WB, > 0*MB, 1*MB); > MAKE_MD(EFI_PAL_CODE, EFI_MEMORY_WB, > 1*MB, 2*MB); > - MAKE_MD(EFI_CONVENTIONAL_MEMORY, EFI_MEMORY_WB, > 2*MB, 130*MB); > + MAKE_MD(EFI_CONVENTIONAL_MEMORY, EFI_MEMORY_WB, > 2*MB, 4096*MB); > MAKE_MD(EFI_CONVENTIONAL_MEMORY, EFI_MEMORY_WB, > 4096*MB, 4128*MB); > #else > MAKE_MD( 4, 0x9, 0x0000000000000000, > 0x0000000000001000); > @@ -382,6 +385,10 @@ sys_fw_init (const char *args, int argle > bp->console_info.orig_x = 0; > bp->console_info.orig_y = 24; > bp->fpswa = 0; > + bp->initrd_start = initrd_start; > + bp->initrd_size = initrd_size; > + bp->domain_start = domain_start; > + bp->domain_size = domain_size; > > return bp; > } > diff -ruNp -X linux-2.6.14.2/Documentation/dontdiff > linux-2.6.14.2/arch/ia64/hp/sim/boot.orig/xen_boot_param.h > linux-2.6.14.2/arch/ia64/hp/sim/boot/xen_boot_param.h > --- > linux-2.6.14.2/arch/ia64/hp/sim/boot.orig/xen_boot_param.h > 1970-01-01 09:00:00.000000000 +0900 > +++ linux-2.6.14.2/arch/ia64/hp/sim/boot/xen_boot_param.h > 2005-12-05 14:45:59.000000000 +0900 > @@ -0,0 +1,26 @@ > +#ifndef XEN_BOOT_PARAM_H > +#define XEN_BOOT_PARAM_H > + > +// this is ia64_boot_param from > xen/include/asm-ia64/linux-xen/asm/system.h > +extern struct xen_ia64_boot_param { > + __u64 command_line; /* physical address of > command line arguments */ > + __u64 efi_systab; /* physical address of > EFI system table */ > + __u64 efi_memmap; /* physical address of > EFI memory map */ > + __u64 efi_memmap_size; /* size of EFI memory map */ > + __u64 efi_memdesc_size; /* size of an EFI > memory map descriptor */ > + __u32 efi_memdesc_version; /* memory descriptor version */ > + struct { > + __u16 num_cols; /* number of columns on console > output device */ > + __u16 num_rows; /* number of rows on console > output device */ > + __u16 orig_x; /* cursor's x position */ > + __u16 orig_y; /* cursor's y position */ > + } console_info; > + __u64 fpswa; /* physical address of the > fpswa interface */ > + __u64 initrd_start; > + __u64 initrd_size; > + __u64 domain_start; /* virtual address where the boot time v > +mcode begins */ > + __u64 domain_size; /* how big is the boot module */ > +} *xen_ia64_boot_param; > + > +#endif // XEN_BOOT_PARAM_H > > > -- > yamahata > > _______________________________________________ > Xen-ia64-devel mailing list > Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-ia64-devel > _______________________________________________ Xen-ia64-devel mailing list Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-ia64-devel
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