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* [efi] Also try original ComponentName protocol for retrieving driver namesMichael Brown2014-08-011-1/+34
| | | | | | | The ComponentName and ComponentName2 protocols differ only in the standard which is used for language name codes. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Add excessive sanity checks into efi_debug functionsMichael Brown2014-08-011-3/+53
| | | | | | | | Try very hard to avoid ever doing something invalid while attempting to generate a debug message. Debugged-by: Curtis Larsen <larsen@dixie.edu> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Improve debugging of the debugging facilitiesMichael Brown2014-08-011-17/+41
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Dump handle information around connect/disconnect attemptsMichael Brown2014-07-311-0/+9
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Dump existing openers when we are unable to open a protocolMichael Brown2014-07-314-0/+8
| | | | | | | | Dump the existing openers of a protocol whenever we are unable to open a protocol using attributes of BY_DEVICE, EXCLUSIVE, or BY_CHILD_CONTROLLER. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Avoid unnecessarily passing pointers to EFI_HANDLEsMichael Brown2014-07-315-14/+14
| | | | | | | | | | | | efi_file_install() and efi_download_install() are both used to install onto existing handles. There is therefore no need to allow for each of their calls to InstallMultipleProtocolInterfaces() to create a new handle. By passing the handle directly (rather than a pointer to the handle), we avoid potential confusion (and erroneous debug message colours). Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Allow compiler to perform type checks on EFI_HANDLEMichael Brown2014-07-311-0/+10
| | | | | | | | | The EFI headers define EFI_HANDLE as a void pointer, which renders type checking on anything dealing with EFI handles somewhat useless. Work around this bizarre sabotage attempt by redefining EFI_HANDLE as a pointer to an anonymous structure. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Use efi_handle_name() instead of efi_devpath_text() where applicableMichael Brown2014-07-314-47/+43Star
| | | | | | | | | | Using efi_devpath_text() is marginally more efficient if we already have the device path protocol available, but the mild increase in efficiency is not worth compromising the clarity of the pattern: DBGC ( device, "THING %p %s ...", device, efi_handle_name ( device ) ); Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Use efi_handle_name() instead of efi_handle_devpath_text()Michael Brown2014-07-318-88/+49Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Add ability to dump all openers of a given protocol on a handleMichael Brown2014-07-312-4/+106
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Provide efi_handle_name() for debuggingMichael Brown2014-07-312-0/+236
| | | | | | | | Provide a function efi_handle_name() (as a generalisation of efi_handle_devpath_text()) which tries various methods to produce a human-readable name for an EFI handle. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Expand the range of well-known EFI GUIDs in debug messagesMichael Brown2014-07-314-10/+390
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Ignore failures when attempting to install SNP HII protocolMichael Brown2014-07-302-6/+13
| | | | | | | | HII seems to fail on several systems. Since it is non-essential, treat HII problems as non-fatal. Debugged-by: Curtis Larsen <larsen@dixie.edu> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [netdevice] Avoid registering duplicate network devicesMichael Brown2014-07-302-5/+42
| | | | | | | | | | | | | | | | | Reject network devices which appear to be duplicates of those already available via a different underlying hardware device. On a Xen PV-HVM system, this allows us to filter out the emulated PCI NICs (which would otherwise appear alongside the netfront NICs). Note that we cannot use the Xen facility to "unplug" the emulated PCI NICs, since there is no guarantee that the OS we subsequently load will have a native netfront driver. We permit devices with the same MAC address if they are attached to the same underlying hardware device (e.g. VLAN devices). Inspired-by: Marin Hannache <git@mareo.fr> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Report exact failure when unable to open the device pathMichael Brown2014-07-301-2/+4
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Fix incorrect debug message level when device has no device pathMichael Brown2014-07-301-2/+2
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Fill in loaded image's DeviceHandle if firmware fails to do soMichael Brown2014-07-301-0/+7
| | | | | | | | | | | | | | | | | | | Some EFI 1.10 implementations (observed with a mid-2011 iMac) seem to fail to fill in the DeviceHandle for our loaded images. It is plausible that these implementations fill in the DeviceHandle only if loading the image from a device path (rather than directly from a memory buffer). Work around this problem by filling in DeviceHandle if the firmware leaves it empty. We cannot sensibly fill in FilePath, because we have no way of knowing whether or not the firmware will treat this as a pointer to be freed when the image returns. Reported-by: Curtis Larsen <larsen@dixie.edu> Tested-by: Curtis Larsen <larsen@dixie.edu> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Unload started images only on failureMichael Brown2014-07-301-9/+17
| | | | | | | | | | | | | | | | | If the StartImage() call returns with no error, then the image must have been started and returned successfully. It either unloaded itself, or it intended to remain loaded (e.g. it was a driver). We therefore do not unload successful images. If there was an error, we attempt to unload the image. This may not work. In particular, there is no way to tell whether an error returned from StartImage() was due to being unable to start the image (in which case we probably should call UnloadImage()), or due to the image itself returning an error (in which case we probably should not call UnloadImage()). We therefore ignore any failures from the UnloadImage() call itself. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Default to releasing network devices for use via SNPMichael Brown2014-07-305-36/+53
| | | | | | | | | | | | | | | | | | | | | | | | We currently treat network devices as available for use via the SNP API only if RX queue processing has been frozen. (This is similar in spirit to the way that RX queue processing is frozen for the network device currently exposed via the PXE API.) The default state of a freshly created network device is for the RX queue to not be frozen, and thus to be unavailable for use via SNP. This causes problems when devices are added through code paths other than _efidrv_start() (which explicitly releases devices for use via SNP). We don't actually need to freeze RX queue processing, since calls via the SNP API will always use netdev_poll() rather than net_poll(), and so will never trigger the RX queue processing code path anyway. We can therefore simplify the code to use a single global flag to indicate whether network devices are claimed for use by iPXE or available for use via SNP. Using a global flag allows the default state for dynamically created network devices to behave sensibly. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [xen] Add support for Xen netfront virtual NICsMichael Brown2014-07-294-0/+1009
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [xen] Add basic support for PV-HVM domainsMichael Brown2014-07-2918-0/+2272
| | | | | | | | | Add basic support for Xen PV-HVM domains (detected via the Xen platform PCI device with IDs 5853:0001), including support for accessing configuration via XenStore and enumerating devices via XenBus. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [xen] Import selected public headersMichael Brown2014-07-2919-0/+5650
| | | | | | | | | | | | Import selected headers from the xen/include/public directory of the Xen repository at git://xenbits.xen.org/xen.git The script ./include/xen/import.pl can be used to automatically import any required headers and their dependencies (in a similar fashion to ./include/ipxe/efi/import.pl). Trailing whitespace is stripped and an appropriate FILE_LICENCE declaration is added to each header file. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [lotest] Discard packets arriving on the incorrect network deviceMichael Brown2014-07-291-6/+6
| | | | | | | | | | | | | Commit 24bbaf6 ("[lotest] Allow loopback testing on shared networks") introduced a regression in which loopback testing packets would be accepted from any network device. This produces unexpected results, such as VLAN loopback testing succeeding even when incorrectly using the underlying trunk device as either transmitter or receiver. Fix by discarding any loopback testing packets which arrive on a network device other than the current loopback testing receiver. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ioapi] Centralise notion of PAGE_SIZEMichael Brown2014-07-283-3/+9
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Set GITVERSION only if there is a git repositoryFlorian Schmaus2014-07-281-1/+1
| | | | | | | | | | | | | | | The $(BIN)/version.%.o target will fail if iPXE is built within a non-git repository, e.g. when the user downloaded and extracted an archive containing iPXE sources, *and* if any parent directory of the iPXE sources is a git repository (or even contains a directory named ".git"). This is because git will by default ascend the directory tree and look for ".git". The problem typically manifests on source based distributions, see for example https://bugs.gentoo.org/show_bug.cgi?id=482804 Modified-by: Michael Brown <mcb30@ipxe.org> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Show more diagnostic information when building with DEBUG=efi_wrapMichael Brown2014-07-262-3/+6
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [lacp] Set "aggregatable" flag in response LACPDUSven Ulland2014-07-231-1/+2
| | | | | | | | | | | | | Some switches do not allow an individual link (as defined in IEEE Std 802.3ad-2000 section 43.3.5) to work alone in a link aggregation group as described in section 43.3.6. This is verified on Dell's PowerConnect M6220, based on the Broadcom Strata XGS-IV chipset. Set the LACP_STATE_AGGREGATABLE flag in the actor.state field to announce link aggregation in the response LACPDU, which will have the switch enable the link aggregation group and allow frames to pass. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [x86_64] Add functions to read and write model-specific registersMichael Brown2014-07-231-0/+43
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [i386] Add functions to read and write model-specific registersMichael Brown2014-07-231-0/+38
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [natsemi] Check for ioremap() failuresMichael Brown2014-07-161-0/+5
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [myson] Check for ioremap() failuresMichael Brown2014-07-161-0/+5
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [skel] Check for ioremap() failuresMichael Brown2014-07-161-0/+5
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [vmxnet3] Check for ioremap() failuresMichael Brown2014-07-161-0/+10
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [realtek] Check for ioremap() failuresMichael Brown2014-07-161-0/+5
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [intel] Check for ioremap() failuresMichael Brown2014-07-162-0/+10
| | | | | Debugged-by: Anton D. Kachalov <mouse@yandex-team.ru> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ioapi] Fail ioremap() when attempting to map a zero bus addressMichael Brown2014-07-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | When a 32-bit iPXE binary is running on a system which allocates PCI memory BARs above 4GB, our PCI subsystem will return the base address for any such BARs as zero (with a warning message if DEBUG=pci is enabled). Currently, ioremap() will happily map an address pointing to the start of physical memory, providing no sensible indication of failure. Fix by always returning NULL if we are asked to ioremap() a zero bus address. With a totally flat memory model (e.g. under EFI), this provides an accurate failure indication since no PCI peripheral will be mapped to the zero bus address. With the librm memory model, there is the possibility of a spurious NULL return from ioremap() if the bus address happens to be equal to virt_offset. Under the current virtual memory map, the NULL virtual address will always be the start of .textdata, and so this problem cannot occur; a NULL return from ioremap() will always be an accurate failure indication. Debugged-by: Anton D. Kachalov <mouse@yandex-team.ru> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Use EFI_CONSOLE_CONTROL_PROTOCOL to set text mode if availableCurtis Larsen2014-07-161-0/+34
| | | | | | | | | On some older EFI 1.10 implementations (observed with an old iMac), we must use the (now obsolete) EFI_CONSOLE_CONTROL_PROTOCOL to switch the console into text mode. Modified-by: Michael Brown <mcb30@ipxe.org> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Include EFI_CONSOLE_CONTROL_PROTOCOL headerMichael Brown2014-07-162-1/+125
| | | | | | | | | | | | The EFI_CONSOLE_CONTROL_PROTOCOL does not exist in the current UEFI specification, but is required to enable text output on some older EFI 1.10 implementations (observed on an old iMac). The header is not present in any of the standard include directories, but can still be found in the EDK2 codebase as part of EdkCompatibilityPkg. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Print well-known GUIDs by name in debug messagesMichael Brown2014-07-161-0/+32
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Allow for interception of boot services calls by loaded imageMichael Brown2014-07-163-0/+257
| | | | | | | When building with DEBUG=efi_wrap, print details of calls made by the loaded image to selected boot services functions. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Install our own disk I/O protocol and claim exclusive use of itMichael Brown2014-07-142-13/+223
| | | | | | | | | | | | | | | | | | | The EFI FAT filesystem driver has a bug: if a block device contains no FAT filesystem but does have an EFI_SIMPLE_FILE_SYSTEM_PROTOCOL instance, the FAT driver will assume that it must have previously installed the EFI_SIMPLE_FILE_SYSTEM_PROTOCOL. This causes the FAT driver to claim control of our device, and to refuse to stop driving it, which prevents us from later uninstalling correctly. Work around this bug by opening the disk I/O protocol ourselves, thereby preventing the FAT driver from opening it. Note that the alternative approach of opening the block I/O protocol (and thereby in theory preventing DiskIo from attaching to the block I/O protocol) causes an endless loop of calls to our DRIVER_STOP method when starting the EFI shell. I have no idea why this is. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Update EDK2 headersMichael Brown2014-07-1420-96/+533
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [netdevice] Reset network device index when last device is unregisteredMichael Brown2014-07-141-2/+8
| | | | | | | | | | | | | | When functioning as an EFI driver, drivers can be disconnected and reconnected multiple times (e.g. via the EFI shell "connect" command, or by running an executable such as ipxe.efi which will temporarily disconnect existing drivers). Minimise surprise by resetting the network device index to zero whenever the last device is unregistered. This is not foolproof, but it does handle the common case of having all devices unregistered and then reregistered in the original order. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [crypto] Fix debug messageMichael Brown2014-07-121-1/+1
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [crypto] Add support for iPAddress subject alternative namesMichael Brown2014-07-113-40/+105
| | | | | Originally-implemented-by: Jarrod Johnson <jarrod.b.johnson@gmail.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Include SNP NIC driver within the all-drivers targetMichael Brown2014-07-081-0/+4
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Rewrite SNP NIC driverMichael Brown2014-07-085-510/+418Star
| | | | | | | | | Rewrite the SNP NIC driver to use non-blocking and deferrable transmissions, to provide link status detection, to provide information about the underlying (PCI) hardware device, and to avoid unnecessary I/O buffer allocations during receive polling. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Attempt to start only drivers claiming support for a deviceMichael Brown2014-07-081-0/+7
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Identify autoboot device by MAC address when chainloadingMichael Brown2014-07-083-0/+89
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [autoboot] Allow autoboot device to be identified by link-layer addressMichael Brown2014-07-083-15/+65
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
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