Move the FdtSerialPortAddressLib to Ovmfpkg so that other ARCH can
easily use it.
Build-tested only (with "ArmVirtQemu.dsc and OvmfPkgX64.dsc").
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
PlatformPeiLib produces the EarlyPL011BaseAddress GUID HOB, and
FdtPL011SerialPortLib consumes it. Extend the HOB such that it also carry
the base address of the PL011 UART meant for DebugLib usage -- namely the
first UART that is *not* designated by the /chosen node's "stdout-path"
property. Implement this policy in PlatformPeiLib.
Note that as far as the SerialPortLib+console UART is concerned, this
patch makes no difference. That selection remains consistent with the
pre-patch state, and therefore consistent with EarlyFdtPL011SerialPortLib.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20231008153912.175941-6-lersek@redhat.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=4577
[lersek@redhat.com: add TianoCore BZ reference]
Introduce a new library class + instance for:
- collecting serial port base addresses from the device tree,
- collecting the /chosen stdout-path serial port base address from the
device tree.
The logic is loosely based on the following functions:
- SerialPortGetBaseAddress()
[ArmVirtPkg/Library/FdtPL011SerialPortLib/EarlyFdtPL011SerialPortLib.c]
- PlatformPeim() [ArmVirtPkg/Library/PlatformPeiLib/PlatformPeiLib.c]
- GetSerialConsolePortAddress()
[ArmVirtPkg/Library/Fdt16550SerialPortHookLib/EarlyFdt16550SerialPortHookLib.c]
which are going to be converted to clients of the new library later.
Copyright notices from those other files are preserved.
The new library fixes the following warts, found by reading the existent
code:
- Neither of the three functions check whether the "reg" property exists.
(This may be implicitly checked when they compare the property size to
16.)
- GetSerialConsolePortAddress() uses ScanMem8() for locating a colon (":")
node path separator in "stdout-path", when AsciiStrStr() could work just
as fine. While ScanMem8() is likely faster, "stdout-path" is presumably
very short, and ScanMem8() introduces an extra lib class dependency
(namely BaseMemoryLib).
- If ScanMem8() fails to locate a colon in "stdout-path", then
GetSerialConsolePortAddress() re-measures the length of the whole
"stdout-path" property. This is conceptually (if not performance-wise)
disturbing, because we know the whole size of the "stdout-path" property
from the property lookup just before, so we only need to subtract the
NUL-terminator for learning the length.
- GetSerialConsolePortAddress() does not check if the first (or only) node
path inside the "stdout-path" property is empty. (Not a big deal, the
subsequent alias resolution should simply fail.)
- GetSerialConsolePortAddress() does not verify if the node path retrieved
(and potentially alias-resolved) from "stdout-path" can be located in
the device tree; it assumes it.
- Code is duplicated (of course) between SerialPortGetBaseAddress() and
PlatformPeim(), but more surprisingly, all three functions embed the
same code for verifying the "status" property of the serial port node,
and for checking and reading its "reg" property.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20231008153912.175941-2-lersek@redhat.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=4577
[lersek@redhat.com: add TianoCore BZ reference]
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737
Apply uncrustify changes to .c/.h files in the ArmVirtPkg package
Cc: Andrew Fish <afish@apple.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
This is one of the series patches to restructure the location of modules under
ArmVirtPkg for RiscVVirtPkg. RiscVVirtPkg leverage FDT Client protocol to
parse FDT nodes.
Signed-off-by: Abner Chang <abner.chang@hpe.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Schaefer <daniel.schaefer@hpe.com>
Cc: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Daniel Schaefer <daniel.schaefer@hpe.com>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Introduce a new GUID Hob gEarly16550UartBaseAddressGuid
to cache the base address of the 16550 UART, for when
PCD access is not available.
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Ard Biesheuvel <Ard.Biesheuvel@arm.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
We no longer use ELF PIE executables to implement the self-relocating
PrePi so drop the custom linker script and visibility override header
file.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Sami Mujawar <Sami.Mujawar@arm.com>
We're going to switch the internal line terminators globally to LF at some
point, but until then, let's use CRLF consistently. Convert source files
with LFs in them to CRLF, using "unix2dos".
"git show -b" prints no code changes for this patch.
(I collected all the file name suffixes in this package, with:
$ git ls-files -- $PACKAGE | rev | cut -f 1 -d . | sort -u | rev
I eliminated those suffixes that didn't stand for text files, then
blanket-converted the rest with unix2dos. Finally, picked up the actual
changes with git-add.)
The CRLF conversion is motivated by "PatchCheck.py".
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1659
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20200227213903.13884-3-lersek@redhat.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
The self-relocating PrePi module that is used by the ArmVirtQemuKernel
and ArmVirtXen targets runs the linker in PIE mode so that it emits
dynamic relocations into the final image in a way that permits the
module to relocate itself into place before calling into the C code.
When building these targets using the CLANG38 toolchain, we switch
from the BFD to the GOLD linker, which behaves a bit differently when
building PIE executables, and insists on emitting GOT indirected symbol
references throughout, which means a) that we end up with absolute
addresses (which need to be fixed up at load time) for no good reason,
and b) we have to add support for handling GOT entries to GenFw if we
want to convert them into PE/COFF.
So instead, let's emit a shared library. Since the ELF image only serves
as the input to GenFw, this does not lead to any loss of functionality,
although it does require the -Bsymbolic linker option to be added to
ensure that no symbol based dynamic relocations are emitted (which
would, e.g., permit lazy binding for shared libraries). So for all
other toolchains, the linker option changes are a no-op.
Then, we have to convince CLANG38/GOLD that there is no need to refer
to symbols via a GOT entry. This is done by forcing hidden visibility
for all symbols in all components that make up the PrePi SEC module:
this informs the linker that a symbol is never exported or preempted,
making it safe to refer to it directly from anywhere in the code,
rather than indirectly via a GOT entry.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Laszlo Ersek <lersek@redhat.com>
As part of the effort to get rid of ArmPlatformLib (which incorporates
far too many duties in a single library), introduce ArmVirtMemInfoLib
which will be invoked by our ArmVirtMemoryInitPeiLib implementation to
get a description of the virtual address space. This will allow us to
remove this functionality from ArmPlatformLib later, or, in the case of
ArmVirtXen and ArmVirtQemuKernel, drop ArmPlatformLib altogether.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Now that the PL031 RTC driver library no longer depends on the ARM
platform specific ArmPlatformSysConfigLib, we no longer need to
implement ArmPlatform.h or have a resolution for that library.
This allows us to get rid of a rather dodgy practice of including
platform headers using compiler flags, which is a bad idea at various
levels.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Add high level methods to iterate over all 'reg' properties of all DT
nodes whose device_type properties have the value "memory". Since we are
modifying the FdtClient protocol, update the protocol and the only existing
implementation at the same time.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
The FDT client protocol methods dealing with "reg" properties return
the size of a "reg" element. Currently, we have hardcoded this as '8',
since #address-cells == #size-cells == 2 in most cases. However, for
different values, have a single 'reg' element size is not unambiguous,
since - however unlikely - if #address-cells != #size-cells, we do not
know which is which.
So before adding more methods to the protocol, fix up this oversight.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
This introduces the FdtClientProtocol, which will be used to expose the
device tree provided by the host to other DXE drivers.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Chao Li
Laszlo Ersek
Michael Kubacki
Abner Chang
Sami Mujawar
Ard Biesheuvel
Michael D Kinney
Ard Biesheuvel
Olivier Martin