diff options
Diffstat (limited to 'roms/ipxe/src/arch/i386/interface/vmware')
| -rw-r--r-- | roms/ipxe/src/arch/i386/interface/vmware/guestinfo.c | 271 | ||||
| -rw-r--r-- | roms/ipxe/src/arch/i386/interface/vmware/guestrpc.c | 328 | ||||
| -rw-r--r-- | roms/ipxe/src/arch/i386/interface/vmware/vmconsole.c | 134 | ||||
| -rw-r--r-- | roms/ipxe/src/arch/i386/interface/vmware/vmware.c | 58 |
4 files changed, 791 insertions, 0 deletions
diff --git a/roms/ipxe/src/arch/i386/interface/vmware/guestinfo.c b/roms/ipxe/src/arch/i386/interface/vmware/guestinfo.c new file mode 100644 index 00000000..a0530c8d --- /dev/null +++ b/roms/ipxe/src/arch/i386/interface/vmware/guestinfo.c @@ -0,0 +1,271 @@ +/* + * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>. + * + * This program 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 2 of the + * License, or any later version. + * + * This program 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 this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +/** @file + * + * VMware GuestInfo settings + * + */ + +#include <stdint.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include <ipxe/init.h> +#include <ipxe/settings.h> +#include <ipxe/netdevice.h> +#include <ipxe/guestrpc.h> + +/** GuestInfo GuestRPC channel */ +static int guestinfo_channel; + +/** + * Fetch value of typed GuestInfo setting + * + * @v settings Settings block + * @v setting Setting to fetch + * @v type Setting type to attempt (or NULL for default) + * @v data Buffer to fill with setting data + * @v len Length of buffer + * @ret found Setting found in GuestInfo + * @ret len Length of setting data, or negative error + */ +static int guestinfo_fetch_type ( struct settings *settings, + struct setting *setting, + const struct setting_type *type, + void *data, size_t len, int *found ) { + const char *parent_name = settings->parent->name; + char command[ 24 /* "info-get guestinfo.ipxe." */ + + strlen ( parent_name ) + 1 /* "." */ + + strlen ( setting->name ) + 1 /* "." */ + + ( type ? strlen ( type->name ) : 0 ) + 1 /* NUL */ ]; + struct setting *predefined; + char *info; + int info_len; + int check_len; + int ret; + + /* Construct info-get command */ + snprintf ( command, sizeof ( command ), + "info-get guestinfo.ipxe.%s%s%s%s%s", + parent_name, ( parent_name[0] ? "." : "" ), setting->name, + ( type ? "." : "" ), ( type ? type->name : "" ) ); + + /* Check for existence and obtain length of GuestInfo value */ + info_len = guestrpc_command ( guestinfo_channel, command, NULL, 0 ); + if ( info_len < 0 ) { + ret = info_len; + goto err_get_info_len; + } + + /* Mark as found */ + *found = 1; + + /* Determine default type if necessary */ + if ( ! type ) { + predefined = find_setting ( setting->name ); + type = ( predefined ? predefined->type : &setting_type_string ); + } + assert ( type != NULL ); + + /* Allocate temporary block to hold GuestInfo value */ + info = zalloc ( info_len + 1 /* NUL */ ); + if ( ! info ) { + DBGC ( settings, "GuestInfo %p could not allocate %d bytes\n", + settings, info_len ); + ret = -ENOMEM; + goto err_alloc; + } + info[info_len] = '\0'; + + /* Fetch GuestInfo value */ + check_len = guestrpc_command ( guestinfo_channel, command, + info, info_len ); + if ( check_len < 0 ) { + ret = check_len; + goto err_get_info; + } + if ( check_len != info_len ) { + DBGC ( settings, "GuestInfo %p length mismatch (expected %d, " + "got %d)\n", settings, info_len, check_len ); + ret = -EIO; + goto err_get_info; + } + DBGC2 ( settings, "GuestInfo %p found %s = \"%s\"\n", + settings, &command[9] /* Skip "info-get " */, info ); + + /* Parse GuestInfo value according to type */ + ret = setting_parse ( type, info, data, len ); + if ( ret < 0 ) { + DBGC ( settings, "GuestInfo %p could not parse \"%s\" as %s: " + "%s\n", settings, info, type->name, strerror ( ret ) ); + goto err_parse; + } + + err_parse: + err_get_info: + free ( info ); + err_alloc: + err_get_info_len: + return ret; +} + +/** + * Fetch value of GuestInfo setting + * + * @v settings Settings block + * @v setting Setting to fetch + * @v data Buffer to fill with setting data + * @v len Length of buffer + * @ret len Length of setting data, or negative error + */ +static int guestinfo_fetch ( struct settings *settings, + struct setting *setting, + void *data, size_t len ) { + struct setting_type *type; + int found = 0; + int ret; + + /* Try default type first */ + ret = guestinfo_fetch_type ( settings, setting, NULL, + data, len, &found ); + if ( found ) + return ret; + + /* Otherwise, try all possible types */ + for_each_table_entry ( type, SETTING_TYPES ) { + ret = guestinfo_fetch_type ( settings, setting, type, + data, len, &found ); + if ( found ) + return ret; + } + + /* Not found */ + return -ENOENT; +} + +/** GuestInfo settings operations */ +static struct settings_operations guestinfo_settings_operations = { + .fetch = guestinfo_fetch, +}; + +/** GuestInfo settings */ +static struct settings guestinfo_settings = { + .refcnt = NULL, + .siblings = LIST_HEAD_INIT ( guestinfo_settings.siblings ), + .children = LIST_HEAD_INIT ( guestinfo_settings.children ), + .op = &guestinfo_settings_operations, +}; + +/** Initialise GuestInfo settings */ +static void guestinfo_init ( void ) { + int rc; + + /* Open GuestRPC channel */ + guestinfo_channel = guestrpc_open(); + if ( guestinfo_channel < 0 ) { + rc = guestinfo_channel; + DBG ( "GuestInfo could not open channel: %s\n", + strerror ( rc ) ); + return; + } + + /* Register root GuestInfo settings */ + if ( ( rc = register_settings ( &guestinfo_settings, NULL, + "vmware" ) ) != 0 ) { + DBG ( "GuestInfo could not register settings: %s\n", + strerror ( rc ) ); + return; + } +} + +/** GuestInfo settings initialiser */ +struct init_fn guestinfo_init_fn __init_fn ( INIT_NORMAL ) = { + .initialise = guestinfo_init, +}; + +/** + * Create per-netdevice GuestInfo settings + * + * @v netdev Network device + * @ret rc Return status code + */ +static int guestinfo_net_probe ( struct net_device *netdev ) { + struct settings *settings; + int rc; + + /* Do nothing unless we have a GuestInfo channel available */ + if ( guestinfo_channel < 0 ) + return 0; + + /* Allocate and initialise settings block */ + settings = zalloc ( sizeof ( *settings ) ); + if ( ! settings ) { + rc = -ENOMEM; + goto err_alloc; + } + settings_init ( settings, &guestinfo_settings_operations, NULL, NULL ); + + /* Register settings */ + if ( ( rc = register_settings ( settings, netdev_settings ( netdev ), + "vmware" ) ) != 0 ) { + DBGC ( settings, "GuestInfo %p could not register for %s: %s\n", + settings, netdev->name, strerror ( rc ) ); + goto err_register; + } + DBGC ( settings, "GuestInfo %p registered for %s\n", + settings, netdev->name ); + + return 0; + + err_register: + free ( settings ); + err_alloc: + return rc; +} + +/** + * Remove per-netdevice GuestInfo settings + * + * @v netdev Network device + */ +static void guestinfo_net_remove ( struct net_device *netdev ) { + struct settings *parent = netdev_settings ( netdev ); + struct settings *settings; + + list_for_each_entry ( settings, &parent->children, siblings ) { + if ( settings->op == &guestinfo_settings_operations ) { + DBGC ( settings, "GuestInfo %p unregistered for %s\n", + settings, netdev->name ); + unregister_settings ( settings ); + free ( settings ); + return; + } + } +} + +/** GuestInfo per-netdevice driver */ +struct net_driver guestinfo_net_driver __net_driver = { + .name = "GuestInfo", + .probe = guestinfo_net_probe, + .remove = guestinfo_net_remove, +}; diff --git a/roms/ipxe/src/arch/i386/interface/vmware/guestrpc.c b/roms/ipxe/src/arch/i386/interface/vmware/guestrpc.c new file mode 100644 index 00000000..390fc554 --- /dev/null +++ b/roms/ipxe/src/arch/i386/interface/vmware/guestrpc.c @@ -0,0 +1,328 @@ +/* + * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>. + * + * This program 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 2 of the + * License, or any later version. + * + * This program 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 this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +/** @file + * + * VMware GuestRPC mechanism + * + */ + +#include <stdint.h> +#include <string.h> +#include <errno.h> +#include <assert.h> +#include <ipxe/vmware.h> +#include <ipxe/guestrpc.h> + +/* Disambiguate the various error causes */ +#define EPROTO_OPEN __einfo_error ( EINFO_EPROTO_OPEN ) +#define EINFO_EPROTO_OPEN \ + __einfo_uniqify ( EINFO_EPROTO, 0x00, "GuestRPC open failed" ) +#define EPROTO_COMMAND_LEN __einfo_error ( EINFO_EPROTO_COMMAND_LEN ) +#define EINFO_EPROTO_COMMAND_LEN \ + __einfo_uniqify ( EINFO_EPROTO, 0x01, "GuestRPC command length failed" ) +#define EPROTO_COMMAND_DATA __einfo_error ( EINFO_EPROTO_COMMAND_DATA ) +#define EINFO_EPROTO_COMMAND_DATA \ + __einfo_uniqify ( EINFO_EPROTO, 0x02, "GuestRPC command data failed" ) +#define EPROTO_REPLY_LEN __einfo_error ( EINFO_EPROTO_REPLY_LEN ) +#define EINFO_EPROTO_REPLY_LEN \ + __einfo_uniqify ( EINFO_EPROTO, 0x03, "GuestRPC reply length failed" ) +#define EPROTO_REPLY_DATA __einfo_error ( EINFO_EPROTO_REPLY_DATA ) +#define EINFO_EPROTO_REPLY_DATA \ + __einfo_uniqify ( EINFO_EPROTO, 0x04, "GuestRPC reply data failed" ) +#define EPROTO_REPLY_FINISH __einfo_error ( EINFO_EPROTO_REPLY_FINISH ) +#define EINFO_EPROTO_REPLY_FINISH \ + __einfo_uniqify ( EINFO_EPROTO, 0x05, "GuestRPC reply finish failed" ) +#define EPROTO_CLOSE __einfo_error ( EINFO_EPROTO_CLOSE ) +#define EINFO_EPROTO_CLOSE \ + __einfo_uniqify ( EINFO_EPROTO, 0x06, "GuestRPC close failed" ) + +/** + * Open GuestRPC channel + * + * @ret channel Channel number, or negative error + */ +int guestrpc_open ( void ) { + uint16_t channel; + uint32_t discard_b; + uint32_t status; + + /* Issue GuestRPC command */ + status = vmware_cmd_guestrpc ( 0, GUESTRPC_OPEN, GUESTRPC_MAGIC, + &channel, &discard_b ); + if ( status != GUESTRPC_OPEN_SUCCESS ) { + DBGC ( GUESTRPC_MAGIC, "GuestRPC open failed: status %08x\n", + status ); + return -EPROTO_OPEN; + } + + DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d opened\n", channel ); + return channel; +} + +/** + * Send GuestRPC command length + * + * @v channel Channel number + * @v len Command length + * @ret rc Return status code + */ +static int guestrpc_command_len ( int channel, size_t len ) { + uint16_t discard_d; + uint32_t discard_b; + uint32_t status; + + /* Issue GuestRPC command */ + status = vmware_cmd_guestrpc ( channel, GUESTRPC_COMMAND_LEN, len, + &discard_d, &discard_b ); + if ( status != GUESTRPC_COMMAND_LEN_SUCCESS ) { + DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d send command " + "length %zd failed: status %08x\n", + channel, len, status ); + return -EPROTO_COMMAND_LEN; + } + + return 0; +} + +/** + * Send GuestRPC command data + * + * @v channel Channel number + * @v data Command data + * @ret rc Return status code + */ +static int guestrpc_command_data ( int channel, uint32_t data ) { + uint16_t discard_d; + uint32_t discard_b; + uint32_t status; + + /* Issue GuestRPC command */ + status = vmware_cmd_guestrpc ( channel, GUESTRPC_COMMAND_DATA, data, + &discard_d, &discard_b ); + if ( status != GUESTRPC_COMMAND_DATA_SUCCESS ) { + DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d send command " + "data %08x failed: status %08x\n", + channel, data, status ); + return -EPROTO_COMMAND_DATA; + } + + return 0; +} + +/** + * Receive GuestRPC reply length + * + * @v channel Channel number + * @ret reply_id Reply ID + * @ret len Reply length, or negative error + */ +static int guestrpc_reply_len ( int channel, uint16_t *reply_id ) { + uint32_t len; + uint32_t status; + + /* Issue GuestRPC command */ + status = vmware_cmd_guestrpc ( channel, GUESTRPC_REPLY_LEN, 0, + reply_id, &len ); + if ( status != GUESTRPC_REPLY_LEN_SUCCESS ) { + DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d receive reply " + "length failed: status %08x\n", channel, status ); + return -EPROTO_REPLY_LEN; + } + + return len; +} + +/** + * Receive GuestRPC reply data + * + * @v channel Channel number + * @v reply_id Reply ID + * @ret data Reply data + * @ret rc Return status code + */ +static int guestrpc_reply_data ( int channel, uint16_t reply_id, + uint32_t *data ) { + uint16_t discard_d; + uint32_t status; + + /* Issue GuestRPC command */ + status = vmware_cmd_guestrpc ( channel, GUESTRPC_REPLY_DATA, reply_id, + &discard_d, data ); + if ( status != GUESTRPC_REPLY_DATA_SUCCESS ) { + DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d receive reply " + "%d data failed: status %08x\n", + channel, reply_id, status ); + return -EPROTO_REPLY_DATA; + } + + return 0; +} + +/** + * Finish receiving GuestRPC reply + * + * @v channel Channel number + * @v reply_id Reply ID + * @ret rc Return status code + */ +static int guestrpc_reply_finish ( int channel, uint16_t reply_id ) { + uint16_t discard_d; + uint32_t discard_b; + uint32_t status; + + /* Issue GuestRPC command */ + status = vmware_cmd_guestrpc ( channel, GUESTRPC_REPLY_FINISH, reply_id, + &discard_d, &discard_b ); + if ( status != GUESTRPC_REPLY_FINISH_SUCCESS ) { + DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d finish reply %d " + "failed: status %08x\n", channel, reply_id, status ); + return -EPROTO_REPLY_FINISH; + } + + return 0; +} + +/** + * Close GuestRPC channel + * + * @v channel Channel number + */ +void guestrpc_close ( int channel ) { + uint16_t discard_d; + uint32_t discard_b; + uint32_t status; + + /* Issue GuestRPC command */ + status = vmware_cmd_guestrpc ( channel, GUESTRPC_CLOSE, 0, + &discard_d, &discard_b ); + if ( status != GUESTRPC_CLOSE_SUCCESS ) { + DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d close failed: " + "status %08x\n", channel, status ); + return; + } + + DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d closed\n", channel ); +} + +/** + * Issue GuestRPC command + * + * @v channel Channel number + * @v command Command + * @v reply Reply buffer + * @v reply_len Length of reply buffer + * @ret len Length of reply, or negative error + * + * The actual length of the reply will be returned even if the buffer + * was too small. + */ +int guestrpc_command ( int channel, const char *command, char *reply, + size_t reply_len ) { + const uint8_t *command_bytes = ( ( const void * ) command ); + uint8_t *reply_bytes = ( ( void * ) reply ); + size_t command_len = strlen ( command ); + int orig_reply_len = reply_len; + uint16_t status; + uint8_t *status_bytes = ( ( void * ) &status ); + size_t status_len = sizeof ( status ); + uint32_t data; + uint16_t reply_id; + int len; + int remaining; + unsigned int i; + int rc; + + DBGC2 ( GUESTRPC_MAGIC, "GuestRPC channel %d issuing command:\n", + channel ); + DBGC2_HDA ( GUESTRPC_MAGIC, 0, command, command_len ); + + /* Sanity check */ + assert ( ( reply != NULL ) || ( reply_len == 0 ) ); + + /* Send command length */ + if ( ( rc = guestrpc_command_len ( channel, command_len ) ) < 0 ) + return rc; + + /* Send command data */ + while ( command_len ) { + data = 0; + for ( i = sizeof ( data ) ; i ; i-- ) { + if ( command_len ) { + data = ( ( data & ~0xff ) | + *(command_bytes++) ); + command_len--; + } + data = ( ( data << 24 ) | ( data >> 8 ) ); + } + if ( ( rc = guestrpc_command_data ( channel, data ) ) < 0 ) + return rc; + } + + /* Receive reply length */ + if ( ( len = guestrpc_reply_len ( channel, &reply_id ) ) < 0 ) { + rc = len; + return rc; + } + + /* Receive reply */ + for ( remaining = len ; remaining > 0 ; remaining -= sizeof ( data ) ) { + if ( ( rc = guestrpc_reply_data ( channel, reply_id, + &data ) ) < 0 ) { + return rc; + } + for ( i = sizeof ( data ) ; i ; i-- ) { + if ( status_len ) { + *(status_bytes++) = ( data & 0xff ); + status_len--; + len--; + } else if ( reply_len ) { + *(reply_bytes++) = ( data & 0xff ); + reply_len--; + } + data = ( ( data << 24 ) | ( data >> 8 ) ); + } + } + + /* Finish receiving RPC reply */ + if ( ( rc = guestrpc_reply_finish ( channel, reply_id ) ) < 0 ) + return rc; + + DBGC2 ( GUESTRPC_MAGIC, "GuestRPC channel %d received reply (id %d, " + "length %d):\n", channel, reply_id, len ); + DBGC2_HDA ( GUESTRPC_MAGIC, 0, &status, sizeof ( status ) ); + DBGC2_HDA ( GUESTRPC_MAGIC, sizeof ( status ), reply, + ( ( len < orig_reply_len ) ? len : orig_reply_len ) ); + + /* Check reply status */ + if ( status != GUESTRPC_SUCCESS ) { + DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d command failed " + "(status %04x, reply id %d, reply length %d):\n", + channel, status, reply_id, len ); + DBGC_HDA ( GUESTRPC_MAGIC, 0, command, command_len ); + DBGC_HDA ( GUESTRPC_MAGIC, 0, &status, sizeof ( status ) ); + DBGC_HDA ( GUESTRPC_MAGIC, sizeof ( status ), reply, + ( ( len < orig_reply_len ) ? len : orig_reply_len )); + return -EIO; + } + + return len; +} diff --git a/roms/ipxe/src/arch/i386/interface/vmware/vmconsole.c b/roms/ipxe/src/arch/i386/interface/vmware/vmconsole.c new file mode 100644 index 00000000..c6b9fff1 --- /dev/null +++ b/roms/ipxe/src/arch/i386/interface/vmware/vmconsole.c @@ -0,0 +1,134 @@ +/* + * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>. + * + * This program 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 2 of the + * License, or any later version. + * + * This program 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 this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +/** @file + * + * VMware logfile console + * + */ + +#include <string.h> +#include <ipxe/console.h> +#include <ipxe/lineconsole.h> +#include <ipxe/init.h> +#include <ipxe/guestrpc.h> +#include <config/console.h> + +/** VMware logfile console buffer size */ +#define VMCONSOLE_BUFSIZE 128 + +/* Set default console usage if applicable */ +#if ! ( defined ( CONSOLE_VMWARE ) && CONSOLE_EXPLICIT ( CONSOLE_VMWARE ) ) +#undef CONSOLE_VMWARE +#define CONSOLE_VMWARE ( CONSOLE_USAGE_ALL & ~CONSOLE_USAGE_TUI ) +#endif + +/** VMware logfile console GuestRPC channel */ +static int vmconsole_channel; + +/** VMware logfile console line buffer */ +static struct { + char prefix[4]; + char message[VMCONSOLE_BUFSIZE]; +} vmconsole_buffer = { + .prefix = "log ", +}; + +/** VMware logfile console ANSI escape sequence handlers */ +static struct ansiesc_handler vmconsole_handlers[] = { + { 0, NULL } +}; + +/** VMware logfile line console */ +static struct line_console vmconsole_line = { + .buffer = vmconsole_buffer.message, + .len = sizeof ( vmconsole_buffer.message ), + .ctx = { + .handlers = vmconsole_handlers, + }, +}; + +/** VMware logfile console recursion marker */ +static int vmconsole_entered; + +/** + * Print a character to VMware logfile console + * + * @v character Character to be printed + */ +static void vmconsole_putchar ( int character ) { + int rc; + + /* Ignore if we are already mid-logging */ + if ( vmconsole_entered ) + return; + + /* Fill line buffer */ + if ( line_putchar ( &vmconsole_line, character ) == 0 ) + return; + + /* Guard against re-entry */ + vmconsole_entered = 1; + + /* Send log message */ + if ( ( rc = guestrpc_command ( vmconsole_channel, + vmconsole_buffer.prefix, NULL, 0 ) ) <0){ + DBG ( "VMware console could not send log message: %s\n", + strerror ( rc ) ); + } + + /* Clear re-entry flag */ + vmconsole_entered = 0; +} + +/** VMware logfile console driver */ +struct console_driver vmconsole __console_driver = { + .putchar = vmconsole_putchar, + .disabled = CONSOLE_DISABLED, + .usage = CONSOLE_VMWARE, +}; + +/** + * Initialise VMware logfile console + * + */ +static void vmconsole_init ( void ) { + int rc; + + /* Attempt to open console */ + vmconsole_channel = guestrpc_open(); + if ( vmconsole_channel < 0 ) { + rc = vmconsole_channel; + DBG ( "VMware console could not be initialised: %s\n", + strerror ( rc ) ); + return; + } + + /* Mark console as available */ + vmconsole.disabled = 0; +} + +/** + * VMware logfile console initialisation function + */ +struct init_fn vmconsole_init_fn __init_fn ( INIT_CONSOLE ) = { + .initialise = vmconsole_init, +}; diff --git a/roms/ipxe/src/arch/i386/interface/vmware/vmware.c b/roms/ipxe/src/arch/i386/interface/vmware/vmware.c new file mode 100644 index 00000000..8074e611 --- /dev/null +++ b/roms/ipxe/src/arch/i386/interface/vmware/vmware.c @@ -0,0 +1,58 @@ +/* + * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>. + * + * This program 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 2 of the + * License, or any later version. + * + * This program 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 this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +/** @file + * + * VMware backdoor mechanism + * + * Based on the unofficial documentation at + * + * http://sites.google.com/site/chitchatvmback/backdoor + * + */ + +#include <stdint.h> +#include <errno.h> +#include <ipxe/vmware.h> + +/** + * Detect VMware presence + * + * @ret rc Return status code + */ +int vmware_present ( void ) { + uint32_t version; + uint32_t magic; + uint32_t product_type; + + /* Perform backdoor call */ + vmware_cmd_get_version ( &version, &magic, &product_type ); + + /* Check for VMware presence */ + if ( magic != VMW_MAGIC ) { + DBGC ( VMW_MAGIC, "VMware not present\n" ); + return -ENOENT; + } + + DBGC ( VMW_MAGIC, "VMware product type %04x version %08x detected\n", + product_type, version ); + return 0; +} |