When you boot an efi payload from network, then exit that payload
and load another payload from disk afterwords, the disk payload will
currently see the network device as its boot path.
This breaks grub2 for example which tries to find its modules based
on the path it was loaded from.
This patch fixes that issue by always reverting to disk paths if we're
not in the network boot. That way the data structures after a network
boot look the same as before.
Signed-off-by: Alexander Graf <agraf@suse.de>
Compiler attributes are more commonly __foo style tags rather than big
upper case eye sores like EFI_RUNTIME_TEXT.
Simon Glass felt quite strongly about this, so this patch converts our
existing defines over to more eye friendly ones.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add the required pieces to support the EFI loader on x86.
Since U-Boot only builds for 32-bit on x86, only a 32-bit EFI application
is supported. If a 64-bit kernel must be booted, U-Boot supports this
directly using FIT (see doc/uImage.FIT/kernel.its). U-Boot can act as a
payload for both 32-bit and 64-bit EFI.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
These are missing in some functions. Add them to keep things consistent.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This is required for x86 and is also correct for ARM (since it is empty).
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
If the system has a valid "serial#" environment variable set (which boards that
can find it out programatically set automatically), use that as input for the
serial number and UUID fields in the SMBIOS tables.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
So far we were only installing the FDT table and didn't have space
to store any other. Hence nobody realized that our efi table allocation
was broken in that it didn't set the indicator for the number of tables
plus one.
This patch fixes it, allowing code to allocate new efi tables.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
We can pass SMBIOS easily as EFI configuration table to an EFI payload. This
patch adds enablement for that case.
While at it, we also enable SMBIOS generation for ARM systems, since they support
EFI_LOADER.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
The type 4 table generation code is very x86 centric today. Refactor things
out into the device model cpu class to allow the tables to get generated for
other architectures as well.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The CPU udevice already has a few callbacks to retreive information
about the currently running CPUs. This patch adds a new get_vendor()
call that returns the vendor of the main CPUs.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
For SMBIOS tables we need to know the CPU family as well as CPU IDs. This
patches allocates some space for them in the cpu device and populates it
on x86.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The SMBIOS generation code passes pointers as u32. That causes the compiler
to warn on casts to pointers. This patch moves all address pointers to
uintptr_t instead.
Technically u32 would be enough for the current SMBIOS2 style tables, but
we may want to extend the code to SMBIOS3 in the future which is 64bit
address capable.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
We want to be able to add configuration table entries from our own code as
well as from EFI payload code. Export the boot service function internally
too, so that we can reuse it.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
We will need the SMBIOS generation function on ARM as well going forward,
so let's move it into a non arch specific location.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
We need the checksum function without all the other table functionality
soon, so let's split it out into its own C file.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
When we're running in 32bpp mode, expose the frame buffer address
to our payloads so that Linux efifb can pick it up.
Signed-off-by: Alexander Graf <agraf@suse.de>
So far bounce buffers were only used for disk I/O, but network I/O
may suffer from the same problem.
On platforms that have problems doing DMA on high addresses, let's
also bounce outgoing network packets. Incoming ones always already
get bounced.
This patch fixes EFI PXE boot on ZynqMP for me.
Signed-off-by: Alexander Graf <agraf@suse.de>
Now that we have generic PSCI reset and shutdown support in place, we can
advertise those as EFI Run Time Services, allowing efi applications and
OSs to reset and shut down systems.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Most armv8 systems have PSCI support enabled in EL3, either through
ARM Trusted Firmware or other firmware.
On these systems, we do not need to implement system reset manually,
but can instead rely on higher level firmware to deal with it.
The exclude list seems excessive right now, but NXP is working on
providing an in-tree PSCI implementation, so that all NXP systems
can eventually use PSCI as well.
Signed-off-by: Alexander Graf <agraf@suse.de>
[agraf: fix meson]
Reviewed-by: Simon Glass <sjg@chromium.org>
Using PSCI you can not only reset the system, you can also shut it down!
This patch exposes a function to do exactly that to whatever code wants
to make use of it.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
All systems that are running on armv8 are running bare metal with firmware
that implements PSCI running in EL3. That means we don't really need to expose
the hypercall variants of them.
This patch leaves the code in, but makes the code explicit enough to have the
compiler optimize it out. With this we don't need to worry about hvc vs smc
calling convention when calling psci helper functions.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
EFI allows an OS to leverage firmware drivers while the OS is running. In the
generic code we so far had to stub those implementations out, because we would
need board specific knowledge about MMIO setups for it.
However, boards can easily implement those themselves. This patch provides the
framework so that a board can implement its own versions of get_time and
reset_system which would actually do something useful.
While at it we also introduce a simple way for code to reserve MMIO pointers
as runtime available.
Signed-off-by: Alexander Graf <agraf@suse.de>
As soon as a mapping is unlinked from the list, there are no further
references to it, so it should be freed. If it not unlinked,
update the start address and length.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
The code assumes sorted mappings in descending address order. When
splitting a mapping, insert the new part next to the current mapping.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Currently each allocation creates a new mapping. Readding the mapping
as free memory (EFI_CONVENTIONAL_MEMORY) potentially allows to hand out
an existing mapping, thus limiting the number of mapping descriptors in
the memory map.
Mitigates a problem with current (4.8rc7) linux kernels when doing an
efi_get_memory map, resulting in an infinite loop. Space for the memory
map is reserved with allocate_pool (implicitly creating a new mapping) and
filled. If there is insufficient slack space (8 entries) in the map, the
space is freed and a new round is started, with space for one more entry.
As each round increases requirement and allocation by exactly one, there
is never enough slack space. (At least 32 entries are allocated, so as
long as there are less than 24 entries, there is enough slack).
Earlier kernels reserved no slack, and did less allocations, so this
problem was not visible.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
We need a functional free_pool implementation, as otherwise each
allocate_pool causes growth of the memory descriptor table.
Different to free_pages, free_pool does not provide the size for the
to be freed allocation, thus we have to track the size ourselves.
As the only EFI requirement for pool allocation is an alignment of
8 bytes, we can keep allocating a range using the page allocator,
reserve the first 8 bytes for our bookkeeping and hand out the
remainder to the caller. This saves us from having to use any
independent data structures for tracking.
To simplify the conversion between pool allocations and the corresponding
page allocation, we create an auxiliary struct efi_pool_allocation.
Given the allocation size free_pool size can handoff freeing the page
range, which was indirectly allocated by a call to allocate_pool,
to free_pages.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
We currently handle efi_allocate_pool() in our boot time service
file. In the following patch, pool allocation will receive additional
internal semantics that we should preserve inside efi_memory.c instead.
As foundation for those changes, split the function into an externally
facing efi_allocate_pool_ext() for use by payloads and an internal helper
efi_allocate_pool() in efi_memory.c that handles the actual allocation.
While at it, change the magic 0xfff / 12 constants to the more obvious
EFI_PAGE_MASK/SHIFT defines.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
A type mismatch in the efi_allocate_pool boot service flow causes
hazardous memory scribbling on 32-bit systems.
This is efi_allocate_pool's prototype:
static efi_status_t EFIAPI efi_allocate_pool(int pool_type,
unsigned long size,
void **buffer);
Internally, it invokes efi_allocate_pages as follows:
efi_allocate_pages(0, pool_type, (size + 0xfff) >> 12,
(void*)buffer);
This is efi_allocate_pages' prototype:
efi_status_t efi_allocate_pages(int type, int memory_type,
unsigned long pages,
uint64_t *memory);
The problem: efi_allocate_pages does this internally:
*memory = addr;
This fix in efi_allocate_pool uses a transitional uintptr_t cast to
ensure the correct outcome, irrespective of the system's native word
size.
This was observed when bootefi'ing the EFI instance of FreeBSD's first
stage bootstrap (boot1.efi) on a 32-bit ARM platform (Qemu VExpress +
Cortex-a9).
Signed-off-by: Robin Randhawa <robin.randhawa@arm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
The current efi_get_memory_map() function overwrites the map_size
property before reading its value. That way the sanity check whether our
memory map fits into the given array always succeeds, potentially
overwriting arbitrary payload memory.
This patch moves the property update write after its sanity check, so
that the check actually verifies the correct value.
So far this has not triggered any known bugs, but we're better off safe
than sorry.
If the buffer is to small, the returned memory_map_size indicates the
required size to the caller.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
In 74c16acce3 the return values where
changed, but the description was kept.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Move SYS_OS_BASE to Kconfig and cleanup existing
uses.
Signed-off-by: Heiko Schocher <hs@denx.de>
[trini: Also migrate a4m2k]
Signed-off-by: Tom Rini <trini@konsulko.com>
Jon Master reports that QEMU refuses to load a U-Boot image built
with CONFIG_ARMV7_NONSEC, but without CONFIG_ARMV7_PSCI since
commit 5a3aae68c7 ("ARM: armv7: guard memory reserve for PSCI
with #ifdef CONFIG_ARMV7_PSCI").
It looks like only PSCI that needs the Secure stack, so move
the #ifdef to guard the whole of .secure_stack allocation in order
not to create the empty section.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reported-by: Jon Masters <jcm@redhat.com>
Link: http://patchwork.ozlabs.org/patch/664025/
lbc_clk is used to fixup dts as "bus frequency".
It is not being used by Linux IFC and eLBC driver.
So remove unused "bus frqeuency" fix-up of devicre tree.
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
PBL flush command is restricted to CCSR memory space. So use WAIT
PBI command to provide enough time for data to get flush in
target memory.
Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
[York Sun: rewrap commit message]
Reviewed-by: York Sun <york.sun@nxp.com>
T series boards use unified RCW for sd, spi and nand boot.
Now split txxx_rcw.cfg to txxx_sd_rcw.cfg, txxx_spi_rcw.cfg
and txxx_nand_rcw.cfg for SPI/NAND/SD boot.
And modify RCW[PBI_SRC] for them:
PBI_SRC=5 for SPI 24-bit addressing
PBI_SRC=6 for SD boot
PBI_SRC=14 for IFC NAND boot
Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
The signature for this macro has changed. Bring in the upstream version and
adjust U-Boot's usages to suit.
Signed-off-by: Simon Glass <sjg@chromium.org>
Update to drivers/power/pmic/palmas.c:
Signed-off-by: Keerthy <j-keerthy@ti.com>
Change-Id: I6cc9021339bfe686f9df21d61a1095ca2b3776e8
These have now landed upstream. The naming is different and in one case the
function signature has changed. Update the code to match.
This applies the following upstream commits by
Thierry Reding <treding@nvidia.com> :
604e61e fdt: Add functions to retrieve strings
8702bd1 fdt: Add a function to get the index of a string
2218387 fdt: Add a function to count strings
Signed-off-by: Simon Glass <sjg@chromium.org>
This includes small changes to the following functions, from upstream
commit 6d1832c:
- fdt_get_max_phandle() (upstream commit 84e0e134)
- fdt_node_check_compatible (upstream commit 53bf130b)
- fdt_setprop_inplace_namelen_partial() to remove useless brackets and
use idx instead of index
- _fdt_resize_property() to use idx instead of index
- _fdt_splice() (upstream commit d4c7c25c)
It also includes various typo fixes in libfdt.h
Signed-off-by: Simon Glass <sjg@chromium.org>
Using pointer arithmetic to generate a pointer outside a known object is,
technically, undefined behaviour in C. Unfortunately, we were using that
in fdt_offset_ptr() to detect overflows.
To fix this we need to do our bounds / overflow checking on the offsets
before constructing pointers from them.
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Simon Glass <sjg@chromium.org>
Sometimes devicetree nodes and or properties are added out of the u-boot
console, maybe through some script or manual interaction.
The devicetree as loaded or embedded is quite small, so the devicetree
has to be resized to take up those new nodes/properties.
In original the devicetree was only extended by effective
4 * add_mem_rsv.
With this commit we can add an argument to the "fdt resize" command,
which takes the extrasize to be added.
Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Acked-by: Simon Glass <sjg@chromium.org>
eth-uclass.c expects DM-capable Ethernet adapters to implement ops->
read_rom_hwaddr(), or for some other mechanism to set pdata->enetaddr, or
for the user to set environment variable $usbethaddr. Without any of
these, it will refuse to initialize the device since no valid MAC address
is known. Implement this function for the smsc95xx driver.
With this feature implemented, there is no point smsc95xx_init_common()
re-reading the MAC address from ROM, so ifdef out this code when DM_ETH
is enabled.
This allows (at least) the built-in Ethernet on the NVIDIA Harmony board
to operate again.
Fixes: 0990fcb772 ("net: smsc95xx: Add driver-model support")
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Add a NFS download test, based on TFTP test.
Tested on i.MX6 SabreLite board.
Signed-off-by: Guillaume GARDET <guillaume.gardet@free.fr>
Cc: Tom Rini <trini@konsulko.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
