From mboxrd@z Thu Jan 1 00:00:00 1970 From: Fu Wei Subject: Re: [PATCH v3 2/4] arm64: Add xen_boot module file Date: Tue, 3 Nov 2015 22:57:42 +0800 Message-ID: References: <=fu.wei@linaro.org> <1437628583-23667-1-git-send-email-fu.wei@linaro.org> <1437628583-23667-3-git-send-email-fu.wei@linaro.org> <56322CCE.905@gmail.com> Reply-To: The development of GNU GRUB Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: grub-devel-bounces+gcbgd-grub-devel=m.gmane.org@gnu.org Sender: grub-devel-bounces+gcbgd-grub-devel=m.gmane.org@gnu.org To: =?UTF-8?Q?Vladimir_=27=CF=86=2Dcoder=2Fphcoder=27_Serbinenko?= Cc: The development of GNU GRUB , xen-devel@lists.xensource.com, Ian Campbell , Stefano Stabellini , Andrei Borzenkov , Jon Masters , Leif Lindholm , Ryan Harkin , Linaro UEFI Mailman List List-Id: xen-devel@lists.xenproject.org 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rpb4O3IJY9gUTtIAnMSt39q/bNqkve7ows1QfTAUPngLUwmBU9sm7sgVfyWZ7h3q6hsm 0sHQ== X-Gm-Message-State: ALoCoQn3bQ+CtQdkrl2YuZRIyiq/t2/9QflSAlePX3OgM+MNcCnM5hYKR6emciYUmcaDN9Lt0s1H MIME-Version: 1.0 X-Received: by 10.182.116.200 with SMTP id jy8mr19433662obb.35.1446562662469; Tue, 03 Nov 2015 06:57:42 -0800 (PST) Received: by 10.202.209.84 with HTTP; Tue, 3 Nov 2015 06:57:42 -0800 (PST) In-Reply-To: References: <=fu.wei@linaro.org> <1437628583-23667-1-git-send-email-fu.wei@linaro.org> <1437628583-23667-3-git-send-email-fu.wei@linaro.org> <56322CCE.905@gmail.com> Date: Tue, 3 Nov 2015 22:57:42 +0800 Message-ID: Subject: Re: [PATCH v3 2/4] arm64: Add xen_boot module file From: Fu Wei To: =?UTF-8?Q?Vladimir_=27=CF=86=2Dcoder=2Fphcoder=27_Serbinenko?= Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2607:f8b0:4003:c01::229 Cc: The development of GNU GRUB , xen-devel@lists.xensource.com, Ian Campbell , Stefano Stabellini , Andrei Borzenkov , Jon Masters , Leif Lindholm , Ryan Harkin , Linaro UEFI Mailman List X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: The development of GNU GRUB List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Nov 2015 14:57:50 -0000 Hi Vladimir, After discussing with Ian Campbell, Since we already can load all the necessary binaries for Xen boot on arm64 for now, we don't really need "xen_module" command now. But maybe someday , xen need a new type of binary in boot time, then we still need this support. So I will submit a "xen_module" command patch soon, in case we need it. Great thanks ! :-) On 30 October 2015 at 16:08, Fu Wei wrote: > Hi Vladimir, > > yes, Thanks for your modification :-) > > I just follow the xen boot protocol : > http://wiki.xen.org/wiki/Xen_ARM_with_Virtualization_Extensions/Multiboot > > xen_module is just for "--type" option, I will discuss this with Xen > developer for this. > If we need this option, I will resubmit it :-) > > Great thanks! > > On 29 October 2015 at 22:27, Vladimir '=CF=86-coder/phcoder' Serbinenko > wrote: >> Committed without the xen_module command. Its argument parsing was >> non-trivial and I don't quite get what its intent is. Can you resubmit? >> On 23.07.2015 07:16, fu.wei@linaro.org wrote: >>> From: Fu Wei >>> >>> grub-core/loader/arm64/xen_boot.c >>> >>> - This adds support for the Xen boot on ARM specification for arm64. >>> - Introduce xen_hypervisor, xen_linux, xen_initrd and xen_xsm >>> to load different binaries for xen boot; >>> Introduce xen_module to load common or custom module for xen boot. >>> - This Xen boot support is a separated module for aarch64, >>> but reuse the existing code of devicetree in linux module. >>> >>> Signed-off-by: Fu Wei >>> --- >>> grub-core/Makefile.core.def | 7 + >>> grub-core/loader/arm64/xen_boot.c | 685 ++++++++++++++++++++++++++++++= ++++++++ >>> 2 files changed, 692 insertions(+) >>> >>> diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def >>> index a6101de..796f7e9 100644 >>> --- a/grub-core/Makefile.core.def >>> +++ b/grub-core/Makefile.core.def >>> @@ -1648,6 +1648,13 @@ module =3D { >>> }; >>> >>> module =3D { >>> + name =3D xen_boot; >>> + common =3D lib/cmdline.c; >>> + arm64 =3D loader/arm64/xen_boot.c; >>> + enable =3D arm64; >>> +}; >>> + >>> +module =3D { >>> name =3D linux; >>> x86 =3D loader/i386/linux.c; >>> xen =3D loader/i386/xen.c; >>> diff --git a/grub-core/loader/arm64/xen_boot.c b/grub-core/loader/arm64= /xen_boot.c >>> new file mode 100644 >>> index 0000000..33a65dd >>> --- /dev/null >>> +++ b/grub-core/loader/arm64/xen_boot.c >>> @@ -0,0 +1,685 @@ >>> +/* >>> + * GRUB -- GRand Unified Bootloader >>> + * Copyright (C) 2014 Free Software Foundation, Inc. >>> + * >>> + * GRUB is free software: you can redistribute it and/or modify >>> + * it under the terms of the GNU General Public License as published = by >>> + * the Free Software Foundation, either version 3 of the License, or >>> + * (at your option) any later version. >>> + * >>> + * GRUB is distributed in the hope that it will be useful, >>> + * but WITHOUT ANY WARRANTY; without even the implied warranty of >>> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the >>> + * GNU General Public License for more details. >>> + * >>> + * You should have received a copy of the GNU General Public License >>> + * along with GRUB. If not, see . >>> + */ >>> + >>> +#include >>> +#include >>> +#include >>> +#include >>> +#include >>> +#include >>> +#include >>> +#include >>> +#include >>> +#include >>> +#include >>> +#include >>> +#include >>> +#include >>> +#include /* required by struct xen_hypervisor_head= er */ >>> +#include >>> +#include >>> + >>> +GRUB_MOD_LICENSE ("GPLv3+"); >>> + >>> +#define XEN_HYPERVISOR_NAME "xen_hypervisor" >>> + >>> +#define MODULE_DEFAULT_ALIGN (0x0) >>> +#define MODULE_IMAGE_MIN_ALIGN MODULE_DEFAULT_ALIGN >>> +#define MODULE_INITRD_MIN_ALIGN MODULE_DEFAULT_ALIGN >>> +#define MODULE_XSM_MIN_ALIGN MODULE_DEFAULT_ALIGN >>> +#define MODULE_CUSTOM_MIN_ALIGN MODULE_DEFAULT_ALIGN >>> + >>> +/* #define MODULE_IMAGE_COMPATIBLE "xen,linux-image\0xen,module" >>> +#define MODULE_INITRD_COMPATIBLE "xen,linux-image\0xen,module" >>> +#define MODULE_XSM_COMPATIBLE "xen,xsm-policy\0xen,module" >>> +#define MODULE_CUSTOM_COMPATIBLE "xen,module" */ >>> +#define MODULE_IMAGE_COMPATIBLE "multiboot,kernel\0multiboot,module" >>> +#define MODULE_INITRD_COMPATIBLE "multiboot,ramdisk\0multiboot,module= " >>> +#define MODULE_XSM_COMPATIBLE "xen,xsm-policy\0multiboot,module" >>> +#define MODULE_CUSTOM_COMPATIBLE "multiboot,module" >>> + >>> +/* This maximum size is defined in Power.org ePAPR V1.1 >>> + * https://www.power.org/documentation/epapr-version-1-1/ >>> + * 2.2.1.1 Node Name Requirements >>> + * node-name@unit-address >>> + * 31 + 1(@) + 16(64bit address in hex format) + 1(\0) =3D 49 >>> + */ >>> +#define FDT_NODE_NAME_MAX_SIZE (49) >>> + >>> +#define ARG_SHIFT(argc, argv) \ >>> + do { \ >>> + (argc)--; \ >>> + (argv)++; \ >>> + } while (0) >>> + >>> +struct compat_string_struct >>> +{ >>> + grub_size_t size; >>> + const char *compat_string; >>> +}; >>> +typedef struct compat_string_struct compat_string_struct_t; >>> +#define FDT_COMPATIBLE(x) {.size =3D sizeof(x), .compat_string =3D (x)= } >>> + >>> +enum module_type >>> +{ >>> + MODULE_IMAGE, >>> + MODULE_INITRD, >>> + MODULE_XSM, >>> + MODULE_CUSTOM >>> +}; >>> +typedef enum module_type module_type_t; >>> + >>> +struct fdt_node_info >>> +{ >>> + module_type_t type; >>> + >>> + const char *compat_string; >>> + grub_size_t compat_string_size; >>> +}; >>> + >>> +struct xen_hypervisor_header >>> +{ >>> + struct grub_arm64_linux_kernel_header efi_head; >>> + >>> + /* This is always PE\0\0. */ >>> + grub_uint8_t signature[GRUB_PE32_SIGNATURE_SIZE]; >>> + /* The COFF file header. */ >>> + struct grub_pe32_coff_header coff_header; >>> + /* The Optional header. */ >>> + struct grub_pe64_optional_header optional_header; >>> +}; >>> + >>> +struct xen_boot_binary >>> +{ >>> + struct xen_boot_binary *next; >>> + struct xen_boot_binary **prev; >>> + const char *name; >>> + >>> + grub_addr_t start; >>> + grub_size_t size; >>> + grub_size_t align; >>> + >>> + char *cmdline; >>> + int cmdline_size; >>> + >>> + struct fdt_node_info node_info; >>> +}; >>> + >>> +static grub_dl_t my_mod; >>> + >>> +static struct xen_boot_binary *xen_hypervisor; >>> +static struct xen_boot_binary *module_head; >>> +static const grub_size_t module_default_align[] =3D { >>> + MODULE_IMAGE_MIN_ALIGN, >>> + MODULE_INITRD_MIN_ALIGN, >>> + MODULE_XSM_MIN_ALIGN, >>> + MODULE_CUSTOM_MIN_ALIGN >>> +}; >>> + >>> +static void *xen_boot_fdt; >>> +static const compat_string_struct_t default_compat_string[] =3D { >>> + FDT_COMPATIBLE (MODULE_IMAGE_COMPATIBLE), >>> + FDT_COMPATIBLE (MODULE_INITRD_COMPATIBLE), >>> + FDT_COMPATIBLE (MODULE_XSM_COMPATIBLE), >>> + FDT_COMPATIBLE (MODULE_CUSTOM_COMPATIBLE) >>> +}; >>> + >>> +static __inline grub_addr_t >>> +xen_boot_address_align (grub_addr_t start, grub_size_t align) >>> +{ >>> + return (align ? (ALIGN_UP (start, align)) : start); >>> +} >>> + >>> +/* Parse the option of xen_module command. For now, we support >>> + (1) --type >>> + We also set up the type of module in this function. >>> + If there are some "--type" options in the command line, >>> + we make a custom compatible stream in this function. */ >>> +static grub_err_t >>> +set_module_type (grub_command_t cmd, struct xen_boot_binary *module, >>> + int argc, char *argv[], int *file_name_index) >>> +{ >>> + char **compat_string_temp_array; >>> + grub_size_t total_size =3D 0; >>> + int num_types =3D 0, i; >>> + char *temp =3D NULL; >>> + >>> + *file_name_index =3D 0; >>> + >>> + if (!grub_strcmp (cmd->name, "xen_linux")) >>> + module->node_info.type =3D MODULE_IMAGE; >>> + else if (!grub_strcmp (cmd->name, "xen_initrd")) >>> + module->node_info.type =3D MODULE_INITRD; >>> + else if (!grub_strcmp (cmd->name, "xen_xsm")) >>> + module->node_info.type =3D MODULE_XSM; >>> + else if (!grub_strcmp (cmd->name, "xen_module")) >>> + module->node_info.type =3D MODULE_CUSTOM; >>> + >>> + /* if there are some options we need to process. */ >>> + if (module->node_info.type =3D=3D MODULE_CUSTOM) >>> + { >>> + compat_string_temp_array =3D >>> + (char **) grub_zalloc (sizeof (char *) * argc); >>> + if (!compat_string_temp_array) >>> + return grub_errno; >>> + /* the module type is set by "--type"(MODULE_CUSTOM) */ >>> + while (argc > 2 && !grub_strcmp (argv[0], "--type")) >>> + { >>> + module->node_info.type =3D MODULE_CUSTOM; >>> + ARG_SHIFT (argc, argv); >>> + total_size +=3D grub_strlen (argv[0]) + 1; >>> + compat_string_temp_array[num_types++] =3D argv[0]; >>> + ARG_SHIFT (argc, argv); >>> + (*file_name_index) +=3D 2; >>> + } >>> + >>> + if (total_size) >>> + { >>> + module->node_info.compat_string =3D temp =3D >>> + (char *) grub_zalloc (total_size); >>> + if (!temp) >>> + { >>> + grub_free (compat_string_temp_array); >>> + return grub_errno; >>> + } >>> + >>> + module->node_info.compat_string_size =3D total_size; >>> + for (i =3D 0; num_types > 0; num_types--, i++, temp++) >>> + { >>> + grub_strcpy (temp, compat_string_temp_array[i]); >>> + temp +=3D grub_strlen (compat_string_temp_array[i]); >>> + } >>> + } >>> + else >>> + { >>> + module->node_info.compat_string =3D >>> + default_compat_string[MODULE_CUSTOM].compat_string; >>> + module->node_info.compat_string_size =3D >>> + default_compat_string[MODULE_CUSTOM].size; >>> + } >>> + >>> + grub_free (compat_string_temp_array); >>> + } >>> + >>> + return GRUB_ERR_NONE; >>> +} >>> + >>> +static grub_err_t >>> +prepare_xen_hypervisor_params (void) >>> +{ >>> + int chosen_node =3D 0; >>> + int retval; >>> + >>> + xen_boot_fdt =3D grub_linux_get_fdt (); >>> + if (!xen_boot_fdt) >>> + return grub_error (GRUB_ERR_IO, "failed to get FDT"); >>> + >>> + chosen_node =3D grub_fdt_find_subnode (xen_boot_fdt, 0, "chosen"); >>> + if (chosen_node < 0) >>> + chosen_node =3D grub_fdt_add_subnode (xen_boot_fdt, 0, "chosen"); >>> + if (chosen_node < 1) >>> + return grub_error (GRUB_ERR_IO, "failed to get chosen node in FDT"= ); >>> + >>> + grub_dprintf ("xen_loader", >>> + "Xen Hypervisor cmdline : %s @ %p size:%d\n", >>> + xen_hypervisor->cmdline, xen_hypervisor->cmdline, >>> + xen_hypervisor->cmdline_size); >>> + >>> + retval =3D grub_fdt_set_prop (xen_boot_fdt, chosen_node, "bootargs", >>> + xen_hypervisor->cmdline, >>> + xen_hypervisor->cmdline_size); >>> + if (retval) >>> + return grub_error (GRUB_ERR_IO, "failed to install/update FDT"); >>> + >>> + return GRUB_ERR_NONE; >>> +} >>> + >>> +static grub_err_t >>> +prepare_xen_module_params (struct xen_boot_binary *module) >>> +{ >>> + int retval, chosen_node =3D 0, module_node =3D 0; >>> + char module_name[FDT_NODE_NAME_MAX_SIZE]; >>> + >>> + retval =3D grub_snprintf (module_name, FDT_NODE_NAME_MAX_SIZE, "modu= le@%lx", >>> + xen_boot_address_align (module->start, >>> + module->align)); >>> + grub_dprintf ("xen_loader", "Module node name %s \n", module_name); >>> + >>> + if (retval < (int) sizeof ("module@")) >>> + return grub_error (GRUB_ERR_IO, N_("failed to get FDT")); >>> + >>> + chosen_node =3D grub_fdt_find_subnode (xen_boot_fdt, 0, "chosen"); >>> + if (chosen_node < 0) >>> + chosen_node =3D grub_fdt_add_subnode (xen_boot_fdt, 0, "chosen"); >>> + if (chosen_node < 1) >>> + return grub_error (GRUB_ERR_IO, "failed to get chosen node in FDT"= ); >>> + >>> + module_node =3D >>> + grub_fdt_find_subnode (xen_boot_fdt, chosen_node, module_name); >>> + if (module_node < 0) >>> + module_node =3D >>> + grub_fdt_add_subnode (xen_boot_fdt, chosen_node, module_name); >>> + >>> + retval =3D grub_fdt_set_prop (xen_boot_fdt, module_node, "compatible= ", >>> + module->node_info.compat_string, >>> + (grub_uint32_t) module-> >>> + node_info.compat_string_size); >>> + if (retval) >>> + return grub_error (GRUB_ERR_IO, N_("failed to update FDT")); >>> + >>> + grub_dprintf ("xen_loader", "Module %s compatible =3D %s size =3D 0x= %lx\n", >>> + module->name, module->node_info.compat_string, >>> + module->node_info.compat_string_size); >>> + >>> + retval =3D grub_fdt_set_reg64 (xen_boot_fdt, module_node, >>> + xen_boot_address_align (module->start, >>> + module->align), >>> + module->size); >>> + if (retval) >>> + return grub_error (GRUB_ERR_IO, N_("failed to update FDT")); >>> + >>> + if (module->cmdline && module->cmdline_size > 0) >>> + { >>> + grub_dprintf ("xen_loader", >>> + "Module %s cmdline : %s @ %p size:%d\n", module->name= , >>> + module->cmdline, module->cmdline, module->cmdline_siz= e); >>> + >>> + retval =3D grub_fdt_set_prop (xen_boot_fdt, module_node, "bootar= gs", >>> + module->cmdline, module->cmdline_size += 1); >>> + if (retval) >>> + return grub_error (GRUB_ERR_IO, "failed to update FDT"); >>> + } >>> + else >>> + { >>> + grub_dprintf ("xen_loader", "Module %s has not bootargs!\n", >>> + module->name); >>> + } >>> + >>> + return GRUB_ERR_NONE; >>> +} >>> + >>> +static grub_err_t >>> +install_all_params (void) >>> +{ >>> + grub_efi_guid_t fdt_guid =3D GRUB_EFI_DEVICE_TREE_GUID; >>> + grub_efi_boot_services_t *b; >>> + grub_efi_status_t status; >>> + >>> + b =3D grub_efi_system_table->boot_services; >>> + status =3D b->install_configuration_table (&fdt_guid, xen_boot_fdt); >>> + if (status !=3D GRUB_EFI_SUCCESS) >>> + return grub_error (GRUB_ERR_IO, "failed to install FDT"); >>> + >>> + grub_dprintf ("xen_loader", >>> + "Installed/updated FDT configuration table @ %p\n", >>> + xen_boot_fdt); >>> + >>> + return GRUB_ERR_NONE; >>> +} >>> + >>> +static grub_err_t >>> +clean_all_params (void) >>> +{ >>> + if (xen_boot_fdt) >>> + { >>> + grub_efi_free_pages ((grub_efi_physical_address_t) xen_boot_fdt, >>> + BYTES_TO_PAGES (grub_fdt_get_totalsize >>> + (xen_boot_fdt))); >>> + xen_boot_fdt =3D NULL; >>> + } >>> + >>> + return GRUB_ERR_NONE; >>> +} >>> + >>> +static grub_err_t >>> +finalize_params_xen_boot (void) >>> +{ >>> + struct xen_boot_binary *module; >>> + >>> + if (xen_hypervisor) >>> + { >>> + if (prepare_xen_hypervisor_params () !=3D GRUB_ERR_NONE) >>> + goto fail; >>> + } >>> + else >>> + { >>> + grub_dprintf ("xen_loader", "Failed to get Xen Hypervisor info!\= n"); >>> + goto fail; >>> + } >>> + >>> + /* Set module params info */ >>> + FOR_LIST_ELEMENTS (module, module_head) >>> + { >>> + if (module->start && module->size > 0) >>> + { >>> + grub_dprintf ("xen_loader", "Module %s @ 0x%lx size:0x%lx\n", >>> + module->name, >>> + xen_boot_address_align (module->start, module->alig= n), >>> + module->size); >>> + if (prepare_xen_module_params (module) !=3D GRUB_ERR_NONE) >>> + goto fail; >>> + } >>> + else >>> + { >>> + grub_dprintf ("xen_loader", "Module info error: %s!\n", module->n= ame); >>> + goto fail; >>> + } >>> + } >>> + >>> + if (install_all_params () =3D=3D GRUB_ERR_NONE) >>> + return GRUB_ERR_NONE; >>> + >>> +fail: >>> + clean_all_params (); >>> + >>> + return grub_error (GRUB_ERR_IO, "failed to install/update FDT"); >>> +} >>> + >>> + >>> +static grub_err_t >>> +xen_boot (void) >>> +{ >>> + grub_err_t err =3D finalize_params_xen_boot (); >>> + if (err) >>> + return err; >>> + >>> + return grub_arm64_uefi_boot_image (xen_hypervisor->start, >>> + xen_hypervisor->size, >>> + xen_hypervisor->cmdline); >>> +} >>> + >>> +static void >>> +single_binary_unload (struct xen_boot_binary *binary) >>> +{ >>> + if (!binary) >>> + return; >>> + >>> + if (binary->start && binary->size > 0) >>> + { >>> + grub_efi_free_pages ((grub_efi_physical_address_t) binary->start= , >>> + BYTES_TO_PAGES (binary->size + binary->align))= ; >>> + } >>> + >>> + if (binary->cmdline && binary->cmdline_size > 0) >>> + { >>> + grub_free (binary->cmdline); >>> + grub_dprintf ("xen_loader", >>> + "Module %s cmdline memory free @ %p size: %d\n", >>> + binary->name, binary->cmdline, binary->cmdline_size); >>> + } >>> + >>> + if (binary->node_info.type =3D=3D MODULE_CUSTOM) >>> + grub_free ((void *) binary->node_info.compat_string); >>> + >>> + if (grub_strcmp (binary->name, XEN_HYPERVISOR_NAME)) >>> + grub_list_remove (GRUB_AS_LIST (binary)); >>> + >>> + grub_dprintf ("xen_loader", >>> + "Module %s struct memory free @ %p size: 0x%lx\n", >>> + binary->name, binary, sizeof (binary)); >>> + grub_free (binary); >>> + >>> + return; >>> +} >>> + >>> +static void >>> +all_binaries_unload (void) >>> +{ >>> + struct xen_boot_binary *binary; >>> + >>> + FOR_LIST_ELEMENTS (binary, module_head) >>> + { >>> + single_binary_unload (binary); >>> + } >>> + >>> + if (xen_hypervisor) >>> + single_binary_unload (xen_hypervisor); >>> + >>> + return; >>> +} >>> + >>> +static grub_err_t >>> +xen_unload (void) >>> +{ >>> + grub_linux_set_loaded (0); >>> + all_binaries_unload (); >>> + clean_all_params (); >>> + grub_dl_unref (my_mod); >>> + >>> + return GRUB_ERR_NONE; >>> +} >>> + >>> +static void >>> +xen_boot_binary_load (struct xen_boot_binary *binary, grub_file_t file= , >>> + int argc, char *argv[]) >>> +{ >>> + binary->size =3D grub_file_size (file); >>> + grub_dprintf ("xen_loader", "Xen_boot %s file size: 0x%lx\n", >>> + binary->name, binary->size); >>> + >>> + binary->start =3D (grub_addr_t) grub_efi_allocate_pages (0, >>> + (BYTES_TO_PAGES >>> + (binary->size + >>> + binary->align)= )); >>> + if (!binary->start) >>> + { >>> + grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory")); >>> + return; >>> + } >>> + >>> + grub_dprintf ("xen_loader", "Xen_boot %s numpages: 0x%lx\n", >>> + binary->name, BYTES_TO_PAGES (binary->size + binary->alig= n)); >>> + >>> + if (grub_file_read (file, (void *) xen_boot_address_align (binary->s= tart, >>> + binary->alig= n), >>> + binary->size) !=3D (grub_ssize_t) binary->size) >>> + { >>> + single_binary_unload (binary); >>> + grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"), arg= v[0]); >>> + return; >>> + } >>> + >>> + if (argc > 1) >>> + { >>> + binary->cmdline_size =3D grub_loader_cmdline_size (argc - 1, arg= v + 1); >>> + binary->cmdline =3D grub_zalloc (binary->cmdline_size); >>> + if (!binary->cmdline) >>> + { >>> + single_binary_unload (binary); >>> + grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory")); >>> + return; >>> + } >>> + grub_create_loader_cmdline (argc - 1, argv + 1, binary->cmdline, >>> + binary->cmdline_size); >>> + grub_dprintf ("xen_loader", >>> + "Xen_boot %s cmdline @ %p %s, size: %d\n", binary->na= me, >>> + binary->cmdline, binary->cmdline, binary->cmdline_siz= e); >>> + } >>> + else >>> + { >>> + binary->cmdline_size =3D 0; >>> + binary->cmdline =3D NULL; >>> + } >>> + >>> + grub_errno =3D GRUB_ERR_NONE; >>> + return; >>> +} >>> + >>> +static grub_err_t >>> +grub_cmd_xen_module (grub_command_t cmd, int argc, char *argv[]) >>> +{ >>> + >>> + struct xen_boot_binary *module =3D NULL; >>> + int file_name_index =3D 0; >>> + grub_file_t file =3D 0; >>> + >>> + if (!argc) >>> + { >>> + grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected")); >>> + goto fail; >>> + } >>> + >>> + if (!grub_linux_get_loaded ()) >>> + { >>> + grub_error (GRUB_ERR_BAD_ARGUMENT, >>> + N_("you need to load the Xen Hypervisor first")); >>> + goto fail; >>> + } >>> + >>> + module =3D >>> + (struct xen_boot_binary *) grub_zalloc (sizeof (struct xen_boot_bi= nary)); >>> + if (!module) >>> + return grub_errno; >>> + >>> + /* process all the options and get module type */ >>> + if (set_module_type (cmd, module, argc, argv, &file_name_index) !=3D >>> + GRUB_ERR_NONE) >>> + goto fail; >>> + switch (module->node_info.type) >>> + { >>> + case MODULE_IMAGE: >>> + case MODULE_INITRD: >>> + case MODULE_XSM: >>> + module->node_info.compat_string =3D >>> + default_compat_string[module->node_info.type].compat_string; >>> + module->node_info.compat_string_size =3D >>> + default_compat_string[module->node_info.type].size; >>> + break; >>> + >>> + case MODULE_CUSTOM: >>> + /* we have set the node_info in set_module_type */ >>> + break; >>> + >>> + default: >>> + return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("invalid argument")= ); >>> + } >>> + module->name =3D module->node_info.compat_string; >>> + module->align =3D module_default_align[module->node_info.type]; >>> + >>> + grub_dprintf ("xen_loader", "Init %s module and node info:\n" >>> + "compatible %s\ncompat_string_size 0x%lx\n", >>> + module->name, module->node_info.compat_string, >>> + module->node_info.compat_string_size); >>> + >>> + file =3D grub_file_open (argv[file_name_index]); >>> + if (!file) >>> + goto fail; >>> + >>> + xen_boot_binary_load (module, file, argc - file_name_index, >>> + argv + file_name_index); >>> + if (grub_errno =3D=3D GRUB_ERR_NONE) >>> + grub_list_push (GRUB_AS_LIST_P (&module_head), GRUB_AS_LIST (modul= e)); >>> + >>> +fail: >>> + if (file) >>> + grub_file_close (file); >>> + if (grub_errno !=3D GRUB_ERR_NONE) >>> + single_binary_unload (module); >>> + >>> + return grub_errno; >>> +} >>> + >>> +static grub_err_t >>> +grub_cmd_xen_hypervisor (grub_command_t cmd __attribute__ ((unused)), >>> + int argc, char *argv[]) >>> +{ >>> + struct xen_hypervisor_header sh; >>> + grub_file_t file =3D NULL; >>> + >>> + grub_dl_ref (my_mod); >>> + >>> + if (!argc) >>> + { >>> + grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected")); >>> + goto fail; >>> + } >>> + >>> + file =3D grub_file_open (argv[0]); >>> + if (!file) >>> + goto fail; >>> + >>> + if (grub_file_read (file, &sh, sizeof (sh)) !=3D (long) sizeof (sh)) >>> + goto fail; >>> + if (grub_arm64_uefi_check_image >>> + ((struct grub_arm64_linux_kernel_header *) &sh) !=3D GRUB_ERR_NO= NE) >>> + goto fail; >>> + grub_file_seek (file, 0); >>> + >>> + /* if another module has called grub_loader_set, >>> + we need to make sure that another module is unloaded properly */ >>> + grub_loader_unset (); >>> + >>> + xen_hypervisor =3D >>> + (struct xen_boot_binary *) grub_zalloc (sizeof (struct xen_boot_bi= nary)); >>> + if (!xen_hypervisor) >>> + return grub_errno; >>> + >>> + xen_hypervisor->name =3D XEN_HYPERVISOR_NAME; >>> + xen_hypervisor->align =3D (grub_size_t) sh.optional_header.section_a= lignment; >>> + >>> + xen_boot_binary_load (xen_hypervisor, file, argc, argv); >>> + if (grub_errno =3D=3D GRUB_ERR_NONE) >>> + { >>> + grub_loader_set (xen_boot, xen_unload, 0); >>> + grub_linux_set_loaded (1); >>> + } >>> + >>> +fail: >>> + if (file) >>> + grub_file_close (file); >>> + if (grub_errno !=3D GRUB_ERR_NONE) >>> + { >>> + grub_linux_set_loaded (0); >>> + all_binaries_unload (); >>> + grub_dl_unref (my_mod); >>> + } >>> + >>> + return grub_errno; >>> +} >>> + >>> +static grub_command_t cmd_xen_hypervisor, cmd_xen_module; >>> +static grub_command_t cmd_xen_linux, cmd_xen_initrd, cmd_xen_xsm; >>> + >>> +GRUB_MOD_INIT (xen_boot) >>> +{ >>> + cmd_xen_hypervisor =3D >>> + grub_register_command ("xen_hypervisor", grub_cmd_xen_hypervisor, = 0, >>> + N_("Load a xen hypervisor.")); >>> + cmd_xen_linux =3D >>> + grub_register_command ("xen_linux", grub_cmd_xen_module, 0, >>> + N_("Load a xen linux kernel for dom0.")); >>> + cmd_xen_initrd =3D >>> + grub_register_command ("xen_initrd", grub_cmd_xen_module, 0, >>> + N_("Load a xen initrd for dom0.")); >>> + cmd_xen_xsm =3D >>> + grub_register_command ("xen_xsm", grub_cmd_xen_module, 0, >>> + N_("Load a xen security module.")); >>> + cmd_xen_module =3D >>> + grub_register_command ("xen_module", grub_cmd_xen_module, 0, >>> + N_("Load a xen module.")); >>> + my_mod =3D mod; >>> +} >>> + >>> +GRUB_MOD_FINI (xen_boot) >>> +{ >>> + grub_unregister_command (cmd_xen_hypervisor); >>> + grub_unregister_command (cmd_xen_linux); >>> + grub_unregister_command (cmd_xen_initrd); >>> + grub_unregister_command (cmd_xen_xsm); >>> + grub_unregister_command (cmd_xen_module); >>> +} >>> >> >> > > > > -- > Best regards, > > Fu Wei > Software Engineer > Red Hat Software (Beijing) Co.,Ltd.Shanghai Branch > Ph: +86 21 61221326(direct) > Ph: +86 186 2020 4684 (mobile) > Room 1512, Regus One Corporate Avenue,Level 15, > One Corporate Avenue,222 Hubin Road,Huangpu District, > Shanghai,China 200021 --=20 Best regards, Fu Wei Software Engineer Red Hat Software (Beijing) Co.,Ltd.Shanghai Branch Ph: +86 21 61221326(direct) Ph: +86 186 2020 4684 (mobile) Room 1512, Regus One Corporate Avenue,Level 15, One Corporate Avenue,222 Hubin Road,Huangpu District, Shanghai,China 200021