* efisetup: Ignore Unicode byte-order mark in command line
References #418
Signed-off-by: Tormod Volden <debian.tormod@gmail.com>
* doc: Command line parameters for QEMU auto-start
The use of 0x0 instead of 0 is because of a bug in the TianoCore EDK-II
bcfg tool. Also the need to escape the " quotes with ^ seems like
another bug.
Signed-off-by: Tormod Volden <debian.tormod@gmail.com>
---------
Signed-off-by: Tormod Volden <debian.tormod@gmail.com>
* system/loongarch: Add 64-bit PCIe memory space mapping
Added the 64-bit PCIe memory space mapping. From 0x8000000000ULL to
0xFD00000000ULL are LoongArch 64-bit PCIe memory spaces and need to be
mapped.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/loongarch: Optimization timer on LoongArch
Since some LoongArch64 CPUs stop the performance counters when ilde, the
running time displayed on the screen is incorrect.
Using stable counter can solve this problem, so remove the performance
counters time, and add stable counter time.
Signed-off-by: Chao Li <lichao@loongson.cn>
---------
Signed-off-by: Chao Li <lichao@loongson.cn>
The x86_64 SysV calling convention does not require r8-r11 to be
preserved by the callee. So we need to save and restore them in the
low-level interrupt handling code in case the C interrupt() function
uses them.
* lib/assert: Add LoongArch assert support
Added LoongArch break 3 assert instruction.
Signed-off-by: Chao Li <lichao@loongson.cn>
* lib/barrier: Add barrier method for LoongArch
Added LoongArch barriers in barrier_spin_wait and barrier_halt_wait
functions.
Signed-off-by: Chao Li <lichao@loognson.cn>
* lib/spinlock: Add LoongArch CPU pause
Because the LoongArch haven't pause instruction, using eight nops to
replace the pause.
Signed-off-by: Chao Li <lichao@loongson.cn>
* lib/string: Make LoongArch use the string function in the file
Since LoongArch GCC doesn't have built-in string functions, use the
string function instance in the sting.c
Signed-off-by: Chao Li <lichao@loongson.cn>
* lib/unistd: Add LoongArch CPU pause
Because the LoongArch haven't pause instruction, using eight nops to
replace the pause.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/acpi: Reduce the way of search RSDP for non-x86 ARCHs
Searching RSDP from legacy BIOS EDBA and reserved areas is available
only on i386 and x64.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/cache: Add LoongArch64 cache operations support
Added cache operations support for LoongArch64.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/cpuid: Add the compile limit
Make the `cpuid` function action only on i386/x64.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/heap: Add heap support for LoongArch64
LoongArch64 uses the low 256MB as the low memory.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/memrw: Add 8-bit and 16-bit memory operations
Added 8-bit and 16-bit memory access operations, which 8-bit uses
`movb` and 16-bit is `movw`.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/memrw: Add LoongArch memory access operations
Added 8/16/32/64-bit memory access operations for LoongArch64.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system: Add Loongson PCI vendor ID and Loongson 7A chipset EHCI workaround
1. Added Loongson PCI vendor ID.
2. Added Loongson 7A chipset ECHI workaround.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/io: Add LoongArch64 IO port operations
Added IO port operations for LoongArch64.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/reloc64: Add LoongArch64 relocations support
Added R_LARCH_RELATIVE and R_LARCH_NONE relocations support for
LoongArch64.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/serial: Add Loongson CPU serial port support
Add the serial port address perfix of Loongson CPU and obtain serial
port clock method.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/smbus: Rename smbus.c to i2c_x86.c
Renamed the smbus.c to i2c_x86.c in i386 and x64 platforms.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/smp: Add LoongArch SMP support
Added LoongArch multi-core support and a way of map to node numbers if
the NUMA is enabled.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/timers: Add LoongArch supports
In LoongArch, there is a stable counter that is independent of other
clocks, it like the TSC in x64. Using it to count the ticks per
millisecond.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/tsc: Add LoongArch support
Usually the frequency of stable counter is not same to CPU frequency, so
using the performance counter for the delay operations.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/usbhcd: Add LoongArch MMIO perfix
Added LoongArch64 MMIO address perfix, use for address the PCI memory
space.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/usbhcd: Add Loongson 7A2000 chipset OHCI BAR offset fix
If the BAR address is not fixed for the Loongson 7A2000 OHCI controller,
some prots will not be usable, This change currently only affects the
LoongArch platform.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system: Add the way to IO access via MMIO
Usually, it is access the IO like PCI IO via MMIO on non-X86 ARCHs, so
a method to access IO via MMIO is added.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system: Add the way to access PCI memory space via MMIO
Some uniformly address ARCHs access the PCI memory depended the MMIO, so
the method to access PCI memory via MMIO is added.
Signed-off-by: Chao Li <lichao@loongson.cn>
* app: Add LoongArch version support
Reduced the version field by two characters to support ARCH name
abbreviations with more than three characters, and added "la64" ARCH
version display.
Singed-off-by: Chao Li <lichao@loongson.cn>
* test/block_move: Add block move test via ASM for LoongArch
Add block move test inline assembly instance for LoongArch.
Signed-off-by: Chao Li <lichao@loongson.cn>
* test/mov_inv_fixed: Add LoongArch ASM version word write operation
Add LoongArch ASM version word write cycle if it uses the HAND_OPTIMISED.
Signed-off-by: Chao Li <lichao@loongson.cn>
* boot: Adjust the AP stack size for LoongArch
LoongArch exception will store all of the GP, FP and CSR on stack, it
need more stack size, make LoongArch AP using 2KB stack size.
Signed-off-by: Chao Li <lichao@loongson.cn>
* boot/efisetup: Add LoongArch CPU halt instruction
Add "idle 0" for LoongArch
Signed-off-by: Chao Li <lichao@loongson.cn>
* boot/efi: Limiting the ms_abi using scope
Make the ms_abi only work on i386 and x64.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/imc/loongson: Add Loongson LoongArch IMC support
Added the Loongson LoongArch CPU IMC instance, support read out the IMC
sequence, currently only supports reading MC0.
Signed-off-by: Chao Li <lichao@loongson.cn>
* app/loongarch: Add intrrupt handler for LoongArch
Added the LoongArch IRQ handler support.
Signed-off-by: Chao Li <lichao@loongson.cn>
* system/loongarch: Add LoongArch ARCH specific files
Added LoongArch ARCH specific files: cpuid.c, cpuinfo.c, hwctrl.c,
memctrl.c, temperature.c, vmem.c, registers.h
They use the same pubilc API for i386 and x64 platforms.
Signed-off-by: Chao Li <lichao@loongson.cn>
* boot: Add LoongArch startup and header
Added the header.S and startup64.S for LoongArch, CPU works on:
1. Page mode.
2. Load and store is cacheable.
3. Instructions is cacheable.
4. DMWn 0 and 1 is used.
5. To access non-cacheable areas, use the perfix 0x8000000000000000.
Signed-off Chao Li <lichao@loongson.cn>
* build64/la64: Add LoongArch64 build files
Add infrastructure files to build memtest86 plus for LoongArch64
platform.
Signed-off-by: Chao Li <lichao@loongson.cn>
* workflows: Add LoongArch64 CI supports
Adjust workflow logci, remvoe 32 and 64 wordsize, replace with "i386,
x86_64 and la64", add LoongArch64 build CI check.
Signed-off-by: Chao Li <lichao@loongson.cn>
---------
Signed-off-by: Chao Li <lichao@loongson.cn>
Signed-off-by: Chao Li <lichao@loognson.cn>
The EFI image .text section is taken from memtest_shared.bin, which is
a combined code and data section. Some recent UEFI BIOSs set the page
protection attributes when loading EFI images, so we need to mark this
section as both executable and writable to prevent page faults.
Fixes issue #413 and should fix issue #377.
Added a new CC flag into build32 and build64 Makefiles to distinguish
whether compiling to 32-bit or 64-bit code.
[Lionel Debroux: rebased on the memrw functions refactor.]
Signed-off-by: Chao Li <lichao@loongson.cn>
Added LoongArch32, LoongArch64 machine numbers, which are defined in Microsoft PE SPEC.
[Lionel Debroux: added RISC-V 32, RISC-V 64, RISC-V 128 PE machine numbers as well, since we already have the ARM machine numbers anyway.]
Signed-off-by: Chao Li <lichao@loongson.cn>
Signed-off-by: Lionel Debroux <lionel_debroux@yahoo.fr>
* Add a file containing useful macro definitions, currently a single top-level macro for obtaining the size of an array; use it to replace a sizeof(x) / sizeof(x[0]) construct in system/smbus.c . This requires switching the GCC build mode from C11 to C11 with GCC extensions.
* Initial NUMA awareness (#12) support: parse the ACPI SRAT to build up new internal structures related to proximity domains and affinity; use these structures in setup_vm_map() and calculate_chunk() to skip the work on the processors which don't belong to the proximity domain currently being tested.
Tested on a number of 1S single-domain, 2S multi-domain and 4S multi-domain platforms.
SKIP_RANGE(iterations) trick by Martin Whitaker.
* Add boot option to rotate screen display through 90 degrees.
Some machines have a detachable display that can be used in either
portrait or landscape orientations, and require software to rotate
the displayed image accordingly. There is no way to detect the
current orientation through the BIOS, so provide a boot option to
control this. Hopefully we only need to support one (+90 degree)
angle.
Note that the rotate option only works in graphical mode. When booted
by a legacy BIOS using text mode, we have to rely on the BIOS to do
what's necessary.
* Extend boot command line options for display screen control.
Replace "rotate" option with "screen.rhs-up" and "screen.lhs-up" to
allow rotation in either direction. Add a "screen.mode=<w>x<h>"
option to set a preferred width <w> and height <h> for the UEFI
frame buffer. Also allow "screen.mode=bios" to use the default
UEFI frame buffer resolution.
* Add more debug output for EFI frame buffer mode.
* Replicate command line parsing of screen options in efisetup.c.
Trying to do it only once in screen.c didn't work, because static
variables initialied to zero are placed in the bss section, and we
don't zero the bss section until after efisetup() is executed.
The resulting code is in fact smaller, because the compiler can
optimise better when everything is local.
* Add a boot command line option for efisetup debug.
* Improve EFI debug test screen pattern.
* Document the new screen and efidebug boot command line options.
* Fix typo in README.
We have a .setup section in the EFI image that contains the remainder of
the Linux boot header and the real-mode setup code to support booting via
an intermediate bootloader. This sits between the PE header and the .text
section. We don't want the EFI loader to load this section, so simply
increase the SizeOfHeader field in the PE header to cover it.
The AP stacks section was being discarded by the linker because the
change in section name and attributes hadn't been propagated from
the startup64.S to startup32.S.
The alignment characteristics are only valid in COFF files. The section
alignment for image files is determined by the SectionAlignment field
in the image header.
When the reloc and sbat sections were added by PR #34, three bugs were
introduced:
1. The virtual address and size fields in the PE headers were set to the
same values as the raw address and size fields. This is incorrect, because
the sections in the image file are aligned on 512 byte boundaries, but when
loaded into memory they need to be aligned on 4096 byte boundaries.
2. The value programmed into the SizeOfImage field was too large, as it
double-counted the region before the start of the .text section.
3. The value programmed into the SizeOfImage field no longer included the bss
size. That potentially allowed the EFI loader to load the image immediately
before a reserved region of memory without leaving enough space for the bss
section.
This commit fixes those bugs by calculating both file and virtual memory
offsets & sizes in the ld script. Note that we can't add a bss section to the
EFI image because many EFI loaders fail to load images that have uninitialised
data sections. Instead the text region size in virtual memory is increased
to include the bss size.
This fixes issue #243. It also eliminates the gaps between sections
observed in issue #202.
A headless EFI system may have no GOP devices. In this case, disable
output to the physical display, but continue to write to the shadow
buffer. This allows operation via a serial console.
This patch adds a new section, ".sbat", which allows for the revocation
of signed binaries given a numeric value representing the set of bugs
which allow for arbitrary code execution, and therefore a Secure Boot
breakout, in a given family of binaries.
In this case, the class is defined as "memtest86+", and the current set
of bugs is 1. This doesn't imply that we're aware of bugs currently,
merely that when we change it to 2, any bugs that /have/ been discovered
have been fixed.
Documentation for how SBAT works can be found at the following URLs:
https://github.com/rhboot/shim/blob/main/SBAT.mdhttps://github.com/rhboot/shim/blob/main/SBAT.example.md
Signed-off-by: Peter Jones <pjones@redhat.com>
In the past, we've seen some problems with some EFI loaders refusing to
load a binary that has both a .text section with the VMA set and no
relocations, when the VMA set to load is already allocated for some
other purpose.
This patch adds a dummy absolute relocation from 0 to 0, so the loader
can always feel like it has done something useful.
Signed-off-by: Peter Jones <pjones@redhat.com>
SizeOfImage is defined as:
The size (in bytes) of the image, including all headers, as the image
is loaded in memory. It must be a multiple of SectionAlignment.
SizeOfHeaders likewise is defined as:
The combined size of an MS-DOS stub, PE header, and section headers
rounded up to a multiple of FileAlignment.
Currently SizeOfImage represents .bss and .text, but it doesn't include
.header or .setup, nor any sections we'll add later, and there's nothing
enforcing that it matches SectionAlignment. Additionally, since .bss is
being set up in our running code and /not/ by the loader, the current
value is dangerously high, as in the event there is an error in the
section table, it could potentially lead the loader to mark memory
allocated at runtime holding user-supplied data by any EFI binary loaded
before us as executable.
This patch adds a new symbol, _img_end, which is after .text and is
rounded up to 4kB (which is also what SectionAlignment is set to). It
also adds a local label, anchored with ".org 512", and uses that to set
SizeOfHeaders - this will ensure the build fails without outputting and
invalid binary if the headers take too much space.
Signed-off-by: Peter Jones <pjones@redhat.com>
Currently, the PE headers we create in boot/header.S do not allocate
space for any Data Directory entries, as they haven't been needed.
In order to support signatures and compatibility with some loaders, we
need the Data Directory to be populated at least enough to set
DataDirectory.Certs and DataDirectory.BaseReloc.
This patch extends that space enough to include those entries.
Signed-off-by: Peter Jones <pjones@redhat.com>
This changes header.S to use the constants defined in peimage.h to for
the values in its structure, making it a lot easier to debug.
Signed-off-by: Peter Jones <pjones@redhat.com>
This adds a header file to describe the PE binary we're building. This
has constants defined for all the values we use in the PE headers, as
well as the structures for reference (guarded by #ifdef __ASSEMBLY__).
This particular peimage.h is originally from binutils-2.10.0.18, which
is GPLv2 licensed, and is copyright the Free Software Foundation. I've
added the few additional fields we need.
Signed-off-by: Peter Jones <pjones@redhat.com>
Most legacy BIOSs will support USB legacy keyboard emulation. Using that
will avoid having to reserve memory for the USB drivers, and should
improve the chance of having a working keyboard without having to work
around various USB device quirks.
In a .code16 section, the default coding for the lgdt instruction only loads
a 24 bit base address from the GDT descriptor. When loaded above 16MB, we
need it to load the full 32 bits.
This shouldn't be needed because we don't set the relocatable_kernel flag,
but the GRUB linuxefi command pays no attention to that. Currently the
linuxefi command also ignores the alignment values, but set them now in
case that changes in the future.
The old barrier implementation was very slow when running on a multi-socket
machine (pcmemtest issue 16).
The new implementation provides two options:
- when blocked, spin on a thread-local flag
- when blocked, execute a HLT instruction and wait for a NMI
The first option might be faster, but we need to measure it to find out. A
new boot command line option is provided to select between the two, with a
third setting that uses a mixture of the two.
- the calculation of the RSP value when an interrupt occurred was
out by 8 bytes
- in a few places a 32-bit pointer was used instead of a 64-bit one
- incorrect tabulation (white space)
There is more in the startup code that isn't thread safe than just
the use of the temporary stack. So take the mutex for the whole time.
The code isn't that long, so it's not worth trying to cover just the
critical sections.
