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* efi_loader: SetVariable() deleting variablesHeinrich Schuchardt2019-09-231-5/+6
| | | | | | | | | | | APPEND_WRITE with data length zero is allowable according to the UEFI specification. The EDK2 interpretation of no access attributes is attributes = 0. As the UEFI specification is vague in this respect let's stick to EDK2 here. Fixes: commit 6d2f27c5fd60 ("efi_loader: variable: support APPEND_WRITE") Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: SetVariable() fix illegal returnHeinrich Schuchardt2019-09-231-1/+1
| | | | | | | | | | We always have to return via EFI_EXIT() from EFIAPI functions. Coverity reported an unreachable line and a resource leak. Fixes: commit 6d2f27c5fd60 ("efi_loader: variable: support APPEND_WRITE") Reported-by: Coverity Scan CID 253575, CID 184095 Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: description efi_stri_coll()Heinrich Schuchardt2019-09-231-5/+0
| | | | | | | Remove outdated TODO for efi_stri_coll(). efi_stri_coll() is already using the Unicode capitalization table. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: variable: support APPEND_WRITEAKASHI Takahiro2019-09-201-26/+44
| | | | | | | | | | | If EFI_VARIABLE_APPEND_WRITE is specified in attributes at efi_set_variable(), specified data will be appended to the variable's original value. Attributes other than APPEND_WRITE should not be modified. With this patch, APPEND_WRITE test in 'variables' selftest will pass. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
* efi_loader: incorrect return value form DisconnectControllerHeinrich Schuchardt2019-09-201-12/+14
| | | | | | | | | | DisconnectController() should never return EFI_NOT_FOUND. If EFI_DRIVER_BINDING_PROTOCOL.Stop() fails, return EFI_DEVICE_ERROR. If the driver handle does not expose the EFI_DRIVER_BINDING_PROTOCOL return EFI_INVALID_PARAMETER. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: device_path: support Sandbox's "host" devicesAKASHI Takahiro2019-09-201-0/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sandbox's "host" devices are currently described as UCLASS_ROOT udevice with DEV_IF_HOST block device. As the current implementation of efi_device_path doesn't support such a type, any "host" device on sandbox cannot be seen as a distinct object. For example, => host bind 0 /foo/disk.img => efi devices Scanning disk host0... Found 1 disks Device Device Path ================ ==================== 0000000015c19970 /VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b) 0000000015c19d70 /VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b) => efi dh Handle Protocols ================ ==================== 0000000015c19970 Device Path, Device Path To Text, Device Path Utilities, Unicode Collation 2, HII String, HII Database, HII Config Routing 0000000015c19ba0 Driver Binding 0000000015c19c10 Simple Text Output 0000000015c19c80 Simple Text Input, Simple Text Input Ex 0000000015c19d70 Block IO, Device Path, Simple File System As you can see here, efi_root (0x0000000015c19970) and host0 device (0x0000000015c19d70) have the same representation of device path. This is not only inconvenient, but also confusing since two different efi objects are associated with the same device path and efi_dp_find_obj() will possibly return a wrong result. Solution: Each "host" device should be given an additional device path node of "vendor device path" to make it distinguishable. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: parameter checks EFI_FILE_PROTOCOL.SetInfo()Heinrich Schuchardt2019-09-111-6/+4
| | | | | | | | | | We do not support volume label changes. No parameter checks are needed here. When the info for as file is changed the buffer must always contain a file name. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: check parameters EFI_FILE_PROTOCOL.GetInfo()Heinrich Schuchardt2019-09-091-0/+6
| | | | | | | | | Check the parameters of EFI_FILE_PROTOCOL.GetInfo() to avoid possible NULL dereference. Check the buffer size for EFI_FILE_SYSTEM_INFO. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: volume name in EFI_FILE_PROTOCOL.GetInfo()Heinrich Schuchardt2019-09-091-6/+12
| | | | | | | | We cannot determine the volume name in U-Boot. Instead of providing a dummy volume name in case of EFI_FILE_SYSTEM_INFO and EFI_UNSUPPORTED in case of EFI_FILE_SYSTEM_VOLUME_LABEL consistently return an empty string. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: EFI_FILE_PROTOCOL rev 2 stubHeinrich Schuchardt2019-09-091-5/+31
| | | | | | | The UEFI specification requires to implement version 2 of the EFI_FILE_PROTOCOL. Provide the missing functions as stubs. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: file size checksHeinrich Schuchardt2019-09-091-29/+40
| | | | | | | | | | The file size has to be determined in multiple places. Factor out a common function. If on entry into EFI_FILE_PROTOCOL.Read() the current position is beyond the end of the file, return EFI_DEVICE_ERROR. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: correct reading of directoriesHeinrich Schuchardt2019-09-091-18/+5
| | | | | | | | | | | | | | | | | EFI_FILE_PROTOCOL.Read() is used both to read files and directories. When reaching the end of a directory we always have to return buffer size zero irrespective of the incoming buffer size. (The described scenario for a Shim quirk cannot arise because every directory has at least '.' and '..' as entries.) Even when the buffer_size is too small multiple times we have to keep a reference to our last read directory entry. When we return to the start of the directory via SetPosition() we must remove the reference to a previously kept directory entry. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: eliminate inline function ascii2unicode()Heinrich Schuchardt2019-09-092-13/+20
| | | | | | | ascii2unicode() can only convert characters 0x00-0x7f from UTF-8 to UTF-16. Use utf8_utf16_strcpy() instead. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: EFI_FILE_PROTOCOL.Write() check argsHeinrich Schuchardt2019-09-091-10/+41
| | | | | | | | | | | Check the parameters passed to Write(): * cannot write to directories (UEFI SCT 2017, 5.7.3.5.15) * cannot write to file opened read only (UEFI SCT 2017, 5.7.3.5.16) Add missing comments. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* doc: UEFI API documentationHeinrich Schuchardt2019-09-053-9/+13
| | | | | | | | Add some more files to the UEFI API documentation. Correct some Sphinx comments. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: EFI_BLOCK_IO_PROTOCOL.Reset()Heinrich Schuchardt2019-09-051-1/+16
| | | | | | | | | We cannot do anything in EFI_BLOCK_IO_PROTOCOL.Reset() but this does not justify to return an error. Let EFI_BLOCK_IO_PROTOCOL.Reset() return EFI_SUCCESS. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: use EFI_PRINT() instead of debug()Heinrich Schuchardt2019-09-051-3/+3
| | | | | | | EFI_PRINT() offers indention of debug messages. Adjust the debug messages of the BLOCK_IO_PROTOCOL. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: parameter checks BLOCK_IO_PROTOCOLHeinrich Schuchardt2019-09-051-1/+36
| | | | | | | | | Check parameters of ReadBlocks() and WriteBlocks(). If the buffer size is not a multiple of the block size, we have to return EFI_BAD_BUFFER_SIZE. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: do not set invalid screen modeHeinrich Schuchardt2019-09-051-0/+4
| | | | | | | | EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.SetMode() should return EFI_UNDEFINED if a screen mode is not available. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Alexander Graf <agraf@csgraf.de>
* efi_loader: cursor positioningHeinrich Schuchardt2019-09-051-5/+13
| | | | | | | | | | When backspacing in column 0 do no set the column index to ULONG_MAX. Ensure that the row number is not set to ULONG_MAX even if the row count is advertised as 0. Ignore control characters other the 0x08, 0x0a, 0x0d when updating the column. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: correctly render UsbClass DP nodes as textHeinrich Schuchardt2019-09-051-1/+1
| | | | | | Correct the text representation of UsbClass device path nodes. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: correctly render CD-ROM device path nodesHeinrich Schuchardt2019-09-052-2/+3
| | | | | | | | | | Correct the name of the partition size component in struct efi_device_path_cdrom_path. Render entry, start, and size when converting a CD-ROM device path node to text. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: correctly render MAC address device path nodesHeinrich Schuchardt2019-09-051-8/+7
| | | | | | If the interface type is greater 1 render all 32 bytes of the MAC address. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: correct text conversion for vendor DPHeinrich Schuchardt2019-09-051-1/+10
| | | | | | | Vendor device paths may contain data. When converting vendor device paths to text this binary data has to be rendered. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: Extract adding a conventional memory in separate routinePark, Aiden2019-09-051-32/+50
| | | | | | | | | | Adding a conventional memory region to the memory map may require ram_top limitation and it can be also commonly used. Extract adding a conventional memory to the memory map in a separate routine for generic use. Signed-off-by: Aiden Park <aiden.park@intel.com> Tested-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: implement MCastIPtoMACHeinrich Schuchardt2019-09-051-2/+42
| | | | | | | | Implement the MCastIPtoMAC service of the simple network protocol. It converts an multicast IPv4 (or IPv6) address to a multicast Ethernet address. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: fix status management in network stackHeinrich Schuchardt2019-09-051-7/+62
| | | | | | | | | | | | The network should start in status EfiSimpleNetworkStopped. Add and correct status checks in the simple network protocol. Correct the unit test: * Shutdown() and Stop() during setup if needed * invoke Shutdown() before Stop() when tearing down Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: EFI_SIMPLE_NETWORK.Transmit() fill headerHeinrich Schuchardt2019-09-051-6/+25
| | | | | | | Fill the media header in EFI_SIMPLE_NETWORK.Transmit(). Check that the buffer size is large enough for the header. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: interrupts in simple network protocolHeinrich Schuchardt2019-09-051-15/+25
| | | | | | | | | GetStatus() must clear the interrupt status. Transmit() should set the TX interrupt. Receive() should clear the RX interrupt. Initialize() and Start() should clear the interrupt status. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: do not call efi_runtime_detach twiceHeinrich Schuchardt2019-08-151-9/+4
| | | | | | | | | | | | | Commit 7f95104d91cc ("efi_loader: detach runtime in ExitBootServices()") added a call to efi_runtime_detach() to ExitBootServices() but did not remove the call in SetVirtualAddressMap(). Remove the superfluous function call. Correct a comment referring to efi_runtime_detach(). Fixes: 7f95104d91cc ("efi_loader: detach runtime in ExitBootServices()") Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: parameter check in SetVirtualAddressMapHeinrich Schuchardt2019-08-151-3/+10
| | | | | | | Check the parameters DescriptorSize and DescriptiorVersion of SetVirtualAddressMap() as prescribed by the UEFI specification. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: EFI_PXE_BASE_CODE_PROTOCOL stubHeinrich Schuchardt2019-08-151-3/+129
| | | | | | | | | | | | U-Boot implements the EFI_PXE_BASE_CODE_PROTOCOL because GRUB uses the mode information for booting via PXE. All function pointers in the protocol were NULL up to now which will cause immediate crashes when the services of the protocol are called. Create function stubs for all services of the protocol returning EFI_UNSUPPORTED. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* env: Rename environment.h to env_internal.hSimon Glass2019-08-111-1/+1
| | | | | | | | | | | | | | This file contains lots of internal details about the environment. Most code can include env.h instead, calling the functions there as needed. Rename this file and add a comment at the top to indicate its internal nature. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> [trini: Fixup apalis-tk1.c] Signed-off-by: Tom Rini <trini@konsulko.com>
* env: Drop environment.h header file where not neededSimon Glass2019-08-111-1/+0
| | | | | | | | This header file is now only used by files that access internal environment features. Drop it from various places where it is not needed. Acked-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Simon Glass <sjg@chromium.org>
* env: Move env_get() to env.hSimon Glass2019-08-111-0/+1
| | | | | | | Move env_get() over to the new header file. Acked-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Simon Glass <sjg@chromium.org>
* env: Move env_set() to env.hSimon Glass2019-08-111-0/+1
| | | | | | | Move env_set() over to the new header file. Acked-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Simon Glass <sjg@chromium.org>
* efi_loader: implement ConvertPointer()Heinrich Schuchardt2019-07-301-4/+71
| | | | | | | Implement the ConvertPointer() runtime service. Suggested-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: definition of efi_virtual_address_map()Heinrich Schuchardt2019-07-301-7/+7
| | | | | | | Use efi_uintn_t where the UEFI spec uses UINTN. Use efi_uintn_t also for the result of the division of two efi_uintn_t. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: re-enable GRUB workaround on 32bit ARMHeinrich Schuchardt2019-07-302-15/+21
| | | | | | | | | | | | | GRUB on ARM 32bit prior to version 2.04 lacks proper handling of caches. In U-Boot v2019.04 a workaround for this was inadvertently removed. The workaround is currently also needed for booting on systems with caches that cannot be managed via CP15 (e.g. with an i.MX6 CPU). Re-enable the workaround and make it customizable. Fixes: f69d63fae281 ("efi_loader: use efi_start_image() for bootefi") Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: unaligned access in efi_file_from_path()Heinrich Schuchardt2019-07-161-1/+6
| | | | | | | | The device path structure is packed. So no assumption on the alignment is possible. Copy the file name in efi_file_from_path() to assure there is no unaligned access. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: efi_dp_from_file() expect UTF-8 pathHeinrich Schuchardt2019-07-161-9/+31
| | | | | | Properly convert UTF-8 file names to UTF-16. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: function comments efi_bootmgr.cHeinrich Schuchardt2019-07-161-7/+40
| | | | | | Convert function descriptions to Sphinx style. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: fix comment for struct efi_pool_allocationHeinrich Schuchardt2019-07-161-5/+9
| | | | | | | Change comment for struct efi_pool_allocation to match Sphinx style. Describe all structure fields. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: fix comments for variable servicesHeinrich Schuchardt2019-07-161-4/+23
| | | | | | | | Add missing parameter descriptions. Remove an invalid link. Correct the formatting of a function comment. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: fix comments for efi_update_exit_data()Heinrich Schuchardt2019-07-161-3/+3
| | | | | | Add missing colons after parameter descriptions. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: fix function comments in efi_boottime.cHeinrich Schuchardt2019-07-161-3/+4
| | | | | | | | | | | scripts/kernel-doc pointed out some errors in the function comments in efi_boottime.c. Add missing and remove superfluous parameter descriptions. Escape * in a function description. Add empty lines for readability. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: Change return type of efi_add_memory_map()Bryan O'Donoghue2019-07-162-15/+23
| | | | | | | | | | | | | | | | | | | | | | | | We currently have some inconsistent use of efi_add_memory_map() throughout the code. In particular the return value of efi_add_memory_map() is not interpreted the same way by various users in the codebase. This patch does the following: - Changes efi_add_memory_map() to return efi_status_t. - Adds a method description to efi_add_memory_map(). - Changes efi_add_memory_map() to return EFI_SUCCESS - Returns non-zero for error in efi_add_memory_map() - Updates efi_allocate_pages() to new efi_add_memory_map() - Updates efi_free_pages() to new efi_add_memory_map() - Updates efi_carve_out_dt_rsv() to new efi_add_memory_map() - Updates efi_add_runtime_mmio() to new efi_add_memory_map() Fixes: 5d00995c361c ("efi_loader: Implement memory allocation and map") Fixes: 74c16acce30b ("efi_loader: Don't allocate from memory holes") Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Cc: Alexander Graf <agraf@csgraf.de> Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGEHeinrich Schuchardt2019-07-162-8/+31
| | | | | | | | Implement the EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event. This requires allocating the event and the event list from runtime data. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: efi_set_virtual_address_map_runtime()Heinrich Schuchardt2019-07-161-1/+1
| | | | | | | efi_set_virtual_address_map_runtime() must be of type __efi_runtime. Fixes: ee8ebaaaaedc ("efi_loader: split off detaching SetVirtualAddress()") Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
* efi_loader: detach runtime in ExitBootServices()Heinrich Schuchardt2019-07-062-1/+4
| | | | | | | | | | | | | | | | Linux can be called with a command line parameter efi=novamap, cf. commit 4e46c2a95621 ("efi/arm/arm64: Allow SetVirtualAddressMap() to be omitted"). In this case SetVirtualAddressMap() is not called after ExitBootServices(). OpenBSD 32bit does not call SetVirtualAddressMap() either. Runtime services must be set to an implementation supported at runtime in ExitBootServices(). Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Suggested-by: Alexander Graf <agraf@csgraf.de> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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