Commit Graph

706 Commits

Author SHA1 Message Date
Ceping Sun 043615ae8b MdePkg/BaseLib: Add NULL version Tdx functions for other architectures
Currently, the NULL version Tdx functions are only built for Ia32.
In BaseLib, the others architectures also need such NULL version
Tdx functions.

Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Min Xu <min.m.xu@intel.com>
Signed-off-by: Ceping Sun <cepingx.sun@intel.com>
2024-09-09 02:57:02 +00:00
Chao Li a066ca16d3 MdePkg: Rename the LoongArch CSR 0x20 register
Added a new name for CSR 0x20 because LoongArch SPEC has adjustd the CSR
0x20 register name.

Ref: LoongArch Reference Manual Vol 1, Seciton 7.1.
https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html#control-and-status-registers

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
2024-08-30 19:54:01 +00:00
kuqin12 a29a9cce5f MdePkg/BaseLib: Add CRC16 CCITT False Implementation.
This change is added to incorporate basic implementation for
CRC16-CCITT-FALSE algorithm.

This function is useful for providing CRC16 value used in other data
structures that requires CRC16 value that complies with JEDEC SPD
requirements, i.e. BDAT table.

The lookup table is inherited from `https://crccalc.com/` and the result
values are also compared against this site.

Signed-off-by: Aaron Pop <aaronpop@microsoft.com>
2024-08-06 05:18:13 +00:00
Pierre Gondois 30e53f8b5e MdePkg/BaseLib: AARCH64: Add ArmReadIdAA64Isar0Reg()
To enable AARCH64 native instruction support for Openssl,
some interfaces must be implemented. OPENSSL_cpuid_setup()
allows to probe the supported features of the platform.

Add ArmReadIdAA64Isar0Reg() to read the AA64Isar0, containing
Arm64 instruction capabilities.
A similar ArmReadIdAA64Isar0() function is available in the ArmPkg,
but the CryptoPkg where OPENSSL_cpuid_setup will reside cannot rely
on the ArmPkg.

Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
2024-08-01 13:41:01 +00:00
Pierre Gondois a72d93e163 MdePkg/BaseLib: AARCH64: Add ArmReadCntPctReg()
To enable AARCH64 native instruction support for Openssl,
some interfaces must be implemented. OPENSSL_rdtsc() requests
an access to a counter to get some non-trusted entropy.

Add ArmReadCntPctReg() to read system count.
A similar ArmReadCntPct() function is available in the ArmPkg,
but the CryptoPkg where OPENSSL_rdtsc will reside cannot rely
on the ArmPkg.

Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
2024-08-01 13:41:01 +00:00
Dongyan Qian 0adc868b36 MdePkg/BaseLib: Optimize LOONGARCH64 csr usage
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4812

When the Select is out of support, use method break exception
instead of method return -1, avoid unknown errors caused by untimely
detection.

Cc: Chao Li <lichao@loongson.cn>
Signed-off-by: Dongyan Qian <qiandongyan@loongson.cn>
2024-07-17 19:33:57 +00:00
Dongyan Qian 2fbaaa96d1 MdePkg/BaseLib: Fix an instruction write width error in LoongArch64
Cpucfg fetch is a 32-bit register, and AsmCpucfg's function
 declaration is a 32-bit address storage operation in BaseLib.h,
So, fix it by replacing stptr.d with stptr.w instrcution.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4797

Cc: Chao Li <lichao@loongson.cn>
Signed-off-by: Dongyan Qian <qiandongyan@loongson.cn>
Co-authored-by: Chao Li <lichao@loongson.cn>
2024-06-26 00:52:39 +00:00
Gerd Hoffmann 5e776299a2 MdePkg/X86UnitTestHost: set rdrand cpuid bit
Set the rdrand feature bit when faking cpuid for host test cases.
Needed to make the CryptoPkg test cases work.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2024-06-14 13:31:12 +00:00
Ray Ni d3b32dca06 MdePkg/BaseLib: Let CpuDeadLoop() be breakable in debugger
Starting from certain version of Visual Studio  C compiler (I don’t
have the exact version. I am using VS2019), CpuDeadLoop is optimized
quite well by compiler.
The compiler does not generate instructions that jump out of the loop
when the "Index" is non-zero.
It becomes harder/impossible for developers to break out of the dead-loop
in debugger.

The new version of CpuDeadLoop() compares a volatile global to a volatile
local. This forces 2 reads and a comparison on every loop iteration.
The local variable can be set to 1 to exit the loop without modifying the
global variable.
Using VS2019 with max opt enabled, The dead-loop can be exit by setting
Index to 1 in a debugger.

Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
2024-06-12 07:18:12 +00:00
Shun Cheng Liu 558a25366d MdePkg/BaseLib: Fix AARCH64 compilation error
Declare InternalAssertJumpBuffer as EXTERN

Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Shun Cheng Liu <adam.liu@tw.synaptics.com>
Reviewed-by: levi.yun <yeoreum.yun@arm.com>
2024-05-15 01:13:18 +00:00
Tom Lendacky c0bf953fe8 MdePkg/BaseLib: Add a new VMGEXIT instruction invocation for SVSM
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4654

The SVSM specification relies on a specific register calling convention to
hold the parameters that are associated with the SVSM request. The SVSM is
invoked by requesting the hypervisor to run the VMPL0 VMSA of the guest
using the GHCB MSR Protocol or a GHCB NAE event.

Create a new version of the VMGEXIT instruction that will adhere to this
calling convention and load the SVSM function arguments into the proper
register before invoking the VMGEXIT instruction. On return, perform the
atomic exchange on the SVSM call pending value as specified in the SVSM
specification.

Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
2024-04-17 18:30:03 +00:00
Ceping Sun 07c49d5d40 MdePkg/BaseLib: Update TDVMCALL_EXPOSE_REGS_MASK
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4696

Refer to the [GHCI] spec, TDVF should clear the BIT5 for RBP in the mask.

Reference:
[GHCI]: TDX Guest-Host-Communication Interface v1.5
https://cdrdv2.intel.com/v1/dl/getContent/726792

Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Min Xu <min.m.xu@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Michael Roth <michael.roth@amd.com>
Cc: Isaku Yamahata <isaku.yamahata@intel.com>
Signed-off-by: Ceping Sun <cepingx.sun@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2024-03-19 09:42:06 +00:00
Chao Li bc0b418cba MdePkg: Add IOCSR operation for LoongArch
Add IoCsrRead8, IoCsrRead16, IoCsrRead32, IoCsrRead64, IoCsrWrite8,
IoCsrWrite16, IoCsrWrite32, IoCsrWrite64 to operate the IOCSR registers
of LoongArch architecture.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2024-02-06 23:51:47 +08:00
Chao Li 0565a8e885 MdePkg: Add CSR operation for LoongArch
Add CsrRead, CsrWrite and CsrXChg functions for LoongArch, and use them
to operate the CSR register of LoongArch architecture.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
Co-authored-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2024-02-06 23:51:47 +08:00
Chao Li 414ad233a5 MdePkg: Add read stable counter operation for LoongArch
Add LoongArch gets stable counter ASM function.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2024-02-06 23:51:47 +08:00
Chao Li 344dc4b9d3 MdePkg: Add LoongArch Cpucfg function
Add LoongArch AsmCpucfg function and Cpucfg definitions.

Also added Include/Register/LoongArch64/Cpucfg.h to IgnoreFiles of
EccCheck.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2024-02-06 23:51:47 +08:00
Chao Li 2ff435b264 MdePkg: Add LoongArch64 local interrupt function set into BaseLib
Adding LoongArch local interrupt function set, which is used to control
the opening or closing of the local interrupt when the global interrupt
is enabled.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2024-02-06 23:51:47 +08:00
Chao Li 57684402e4 MdePkg: Add LoongArch64 exception function set into BaseLib
Adding SetExceptionBaseAddress and SetTlbRebaseAddress functions
for LoongArch64.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2024-02-06 23:51:47 +08:00
王洋 0765ee6cd3 MdePkg/BaseLib: Fix boot DxeCore hang on riscv platform
For scene of
HandOffToDxeCore()->SwitchStack(DxeCoreEntryPoint)->
InternalSwitchStack()->LongJump(),Variable HobList.Raw
will be passed (from *Context1 to register a0) to
DxeMain() in parameter *HobStart.

However, meanwhile the function LongJump() overrides
register a0 with a1 (-1)  due to commit (ea628f28e5 "RISCV: Fix
InternalLongJump to return correct value"), then cause hang.

Replacing calling LongJump() with new InternalSwitchStackAsm() to pass
addres data in register s0 to register a0 could fix this issue (just
like the solution in MdePkg/Library/BaseLib/AArch64/SwitchStack.S)

Signed-off-by: Yang Wang <wangyang@bosc.ac.cn>
Cc: Bamvor Jian ZHANG <zhangjian@bosc.ac.cn>
Cc: Andrei Warkentin <andrei.warkentin@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Sunil V L <sunilvl@ventanamicro.com>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Reviewed-by: Ran Wang <wangran@bosc.ac.cn>
Reviewed-by: Andrei Warkentin <andrei.warkentin@intel.com>
2024-01-11 15:19:26 +00:00
Sunil V L 8ae17a71af MdePkg/BaseLib: RISC-V: Add function to update stimecmp register
stimecmp is a CSR supported only when Sstc extension is supported by the
platform. This register can be used to set the timer interrupt directly in
S-mode instead of going via SBI call. Add a function to update this
register.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Andrei Warkentin <andrei.warkentin@intel.com>
Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Andrei Warkentin <andrei.warkentin@intel.com>
2024-01-11 12:07:42 +00:00
Dhaval 26727c2ae2 MdePkg: Implement RISC-V Cache Management Operations
Implement Cache Management Operations (CMO) defined by
RISC-V spec https://github.com/riscv/riscv-CMOs.

Notes:
1. CMO only supports block based Operations. Meaning cache
   flush/invd/clean Operations are not available for the entire
   range. In that case we fallback on fence.i instructions.
2. Operations are implemented using Opcodes to make them compiler
   independent. binutils 2.39+ compilers support CMO instructions.

Test:
1. Ensured correct instructions are refelecting in asm
2. Qemu implements basic support for CMO operations in that it allwos
   instructions without exceptions. Verified it works properly in
   that sense.
3. SG2042Pkg implements CMO-like instructions. It was verified that
   CpuFlushCpuDataCache works fine. This more of less
   confirms that framework is alright.
4. TODO: Once Silicon is available with exact instructions, we will
   further verify this.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Sunil V L <sunilvl@ventanamicro.com>
Cc: Daniel Schaefer <git@danielschaefer.me>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Pedro Falcato <pedro.falcato@gmail.com>

Signed-off-by: Dhaval Sharma <dhaval@rivosinc.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Sunil V L <sunilvl@...>
Reviewed-by: Jingyu Li <jingyu.li01@...>
2023-12-19 12:48:14 +00:00
Dhaval 30faafd024 MdePkg: Rename Cache Management Function To Clarify Fence Based Op
There are different ways to manage cache on RISC-V Processors.
One way is to use fence instruction. Another way is to use CPU
specific cache management operation instructions ratified as
per RISC-V ISA specifications to be introduced in future
patches. Current method is fence instruction based, rename the
function accordingly to add that clarity.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Sunil V L <sunilvl@ventanamicro.com>
Cc: Daniel Schaefer <git@danielschaefer.me>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Pedro Falcato <pedro.falcato@gmail.com>

Signed-off-by: Dhaval Sharma <dhaval@rivosinc.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2023-12-19 12:48:14 +00:00
Pedro Falcato e2d4f75913 MdePkg/BaseLib: Fix CRC16-ANSI calculation
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4609

The current CalculateCrc16Ansi implementation does the following:
1) Invert the passed checksum
2) Calculate the new checksum by going through data and using the
   lookup table
3) Invert it back again

This emulated my design for CalculateCrc32c, where 0 is
passed as the initial checksum, and it inverts in the end.
However, CRC16 does not invert the checksum on input and output.
So this is incorrect.

Fix the problem by not inverting input checksums nor output checksums.
Callers should now pass CRC16ANSI_INIT as the initial value instead of
"0". This is a breaking change.

This problem was found out-of-list when older ext4 filesystems
(that use crc16 checksums) failed to mount with "corruption".

Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Pedro Falcato <pedro.falcato@gmail.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
2023-12-03 02:37:26 +00:00
Ceping Sun 68e37f4578 MdePkg/BaseLib: Update TdVmcall to always output the value in R11
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4572

According to section 3.2 of the [GHCI] spec, if the return status
of MapGPA is "TDG.VP.VMCALL_RETRY", TD must retry this operation
for the pages in the region starting at the GPA specified in R11.

Currently, TDVF has not handled the retry results and always clears
the R11 on unsuccessful return status. For this, the TdVmcall needs
to output the value of R11 on unsuccessful return status to handle
the retry results of MapGPA.

Reference:
[GHCI]: TDX Guest-Host-Communication Interface v1.0
https://cdrdv2.intel.com/v1/dl/getContent/726790

Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Min Xu <min.m.xu@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Michael Roth <michael.roth@amd.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Ceping Sun <cepingx.sun@intel.com>
2023-11-09 17:15:39 +00:00
Leif Lindholm 1497c4b074 MdePkg/BaseLib: fix typo in Arm SetJump
RO -> R0

Signed-off-by: Leif Lindholm <quic_llindhol@quicinc.com>
Reported-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2023-10-03 11:56:52 +00:00
Leif Lindholm 1a66bd51ca MdePkg/BaseLib: ensure ARM LongJump never returns 0
The ARM implementation of InternalLongJump always returned the value
Value - but it is not supposed to ever return 0. Add the test to prevent
that, and return 1 if Value is 0 - as is already present in AArch64.

Signed-off-by: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2023-10-02 15:48:02 +00:00
Leif Lindholm 2b2705343a MdePkg/BaseLib: correct register sizes in AArch64 SetJump/LongJump
Both in SetJump and in InternalLongJump, 32-bit w register views were
used for the UINTN return value. In SetJump, this did not cause errors;
it was only counterintuitive. But in InternalLongJump, it meant the top
32 bits of Value were stripped off.

Change all of these to use the 64-bit x register views.

Signed-off-by: Leif Lindholm <quic_llindhol@quicinc.com>
Reanimated-by: Andrei Warkentin <andrei.warkentin@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Andrei Warkentin <andrei.warkentin@intel.com>
2023-10-02 15:48:02 +00:00
Leif Lindholm ae79efb7bd MdePkg/BaseLib: use normal register init in ARM SetJump implementations
There may be architectures on which there are benefits to
  eor r0, r0(, r0)
but ARM was never one of them. Change to more readable
  mov r0, #0
instead.

Signed-off-by: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2023-10-02 15:48:02 +00:00
Leif Lindholm 80bbea192a MdePkg/BaseLib: add ASSERT in ARM* SetJump implementations
The SetJump comment header states that:
  If JumpBuffer is NULL, then ASSERT().

However, this was not currently done.
Add a call to InternalAssertJumpBuffer.

Signed-off-by: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2023-10-02 15:48:02 +00:00
Leif Lindholm cbf0e4f5b3 MdePkg/BaseLib: fix comments in ARM* SetJump/LongJump implementations
Drop redundant comment about IPF (clearly copied across from now deleted
code).

Also change
"Instead is resumes execution" ->
"Instead it resumes execution"

Signed-off-by: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
2023-10-02 15:48:02 +00:00
Andrei Warkentin ea628f28e5 RISCV: Fix InternalLongJump to return correct value
InternalLongJump was not returning the 2nd parameter passed
to LongJmp (Value) as the return value from SetJmp.

Seen with code compiled with -Os, where an LongJmp (Buffer, -1)
somehow translated to SetJmp returning 0...

Cc: Yong Li <yong.li@intel.com>
Cc: Sunil V L <sunilvl@ventanamicro.com>
Cc: Tuan Phan <tphan@ventanamicro.com>
Cc: Daniel Schaefer <git@danielschaefer.me>
Signed-off-by: Andrei Warkentin <andrei.warkentin@intel.com>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
2023-09-21 04:57:57 +00:00
Tuan Phan 7178047402 MdePkg/BaseLib: RISC-V: Support getting satp register value
Add an API to retrieve satp register value.

Signed-off-by: Tuan Phan <tphan@ventanamicro.com>
Reviewed-by: Andrei Warkentin <andrei.warkentin@intel.com>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
2023-07-15 14:10:18 +00:00
Yong Li ded0b489af MdePkg/BaseLib: Add SpeculationBarrier implementation for RiscV64
Implement the SpeculationBarrier with implementations consisting of
fence instruction which provides finer-grain memory orderings.
Perform Data Barrier in RiscV: fence rw,rw
Perform Instruction Barrier in RiscV: fence.i; fence r,r
More detail is in Appendix A: RVWMO Explanatory Material in
https://github.com/riscv/riscv-isa-manual

This API is first introduced in the below commits for IA32 and x64
d9f1cac51b
e83d841fdc
and below the commit for ARM and AArch64 implementation
c0959b4426

This commit is to add the RiscV64 implementation which will be used by
variable service under Variable/RuntimeDxe

Cc: Andrei Warkentin <andrei.warkentin@intel.com>
Cc: Evan Chai <evan.chai@intel.com>
Cc: Sunil V L <sunilvl@ventanamicro.com>
Cc: Tuan Phan <tphan@ventanamicro.com>
Signed-off-by: Yong Li <yong.li@intel.com>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
2023-06-06 20:37:18 +00:00
Michael D Kinney eb20c21fcc MdePkg/Library/BaseLib: HOST_APPLICATION IA32/X64 only
Update BaseLib host-based unit test INF file to only list
VALID_ARCHITECTURES of IA32 and X64 to align with all other
host-based unit test INF files. The UnitTestFrameworkPkg only
provides build support of host-based unit tests to OS applications
for IA32 and X64.

Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Oliver Smith-Denny <osde@linux.microsoft.com>
2023-04-10 05:59:02 +00:00
Michael Kubacki 321240b135 MdePkg: Fix conditionally uninitialized variables
Fixes CodeQL alerts for CWE-457:
https://cwe.mitre.org/data/definitions/457.html

Note that this change affects the actual return value from the
following functions. The functions documented that if an integer
overflow occurred, MAX_UINTN would be returned. They were
implemented to actually return an undefined value from the stack.

This change makes the function follow its description. However, this
is technically different than what callers may have previously
expected.

MdePkg/Library/BaseLib/String.c:
  - StrDecimalToUintn()
  - StrDecimalToUint64()
  - StrHexToUintn()
  - StrHexToUint64()
  - AsciiStrDecimalToUintn()
  - AsciiStrDecimalToUint64()
  - AsciiStrHexToUintn()
  - AsciiStrHexToUint64()

Cc: Erich McMillan <emcmillan@microsoft.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Michael Kubacki <mikuback@linux.microsoft.com>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Co-authored-by: Erich McMillan <emcmillan@microsoft.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Oliver Smith-Denny <osd@smith-denny.com>
2023-04-03 15:29:08 +00:00
Ard Biesheuvel c4c7fb2174 MdePkg/BaseLib AARCH64: Make asm files BTI compatible
Add the BTI instructions and the associated note to make the AArch64 asm
objects compatible with BTI enforcement.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
Reviewed-by: Oliver Smith-Denny <osd@smith-denny.com>
2023-03-30 11:05:22 +00:00
Ard Biesheuvel e504b3917e MdePkg/BaseLib AARCH64: Make LongJump() BTI compatible
Currently, the AArch64 implementation of LongJump() avoids using the RET
instruction to perform the jump, even though the target address is held
in the link register X30, as the nature of a long jump implies that the
ordinary return address prediction machinery will not be able to make a
correct prediction.

However, LongJump() is rarely used, and the return stack will be out of
sync in any case, so this optimization has little value in practice, and
given that indirect calls other than function returns require a BTI
landing pad at the call site, this optimization is not compatible with
BTI. So let's just use RET instead.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
Reviewed-by: Oliver Smith-Denny <osd@smith-denny.com>
2023-03-30 11:05:22 +00:00
Rebecca Cran b17a3a133b MdePkg: Update code to be more C11 compliant by using __func__
__FUNCTION__ is a pre-standard extension that gcc and Visual C++ among
others support, while __func__ was standardized in C99.

Since it's more standard, replace __FUNCTION__ with __func__ throughout
MdePkg.

Visual Studio versions before VS 2015 don't support __func__ and so
will fail to compile. A workaround is to define __func__ as
__FUNCTION__ :

 #define __func__ __FUNCTION__

Signed-off-by: Rebecca Cran <rebecca@quicinc.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
2023-03-17 17:55:48 +00:00
Andrei Warkentin 5bd2e5dfe6 MdePkg: BaseLib: don't log in RISCV InternalSwitchStack
InternalSwitchStack may be called with a TPL high
enough for a DebugLib implementation to assert.

Other arch implementations don't log either.

Cc: Daniel Schaefer <git@danielschaefer.me>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
Signed-off-by: Andrei Warkentin <andrei.warkentin@intel.com>
2023-03-08 18:10:34 +00:00
Sunil V L 550f196e82 MdePkg/BaseLib: RISC-V: Add few more helper functions
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4076

Few of the basic helper functions required for any
RISC-V CPU were added in edk2-platforms. To support
qemu virt, they need to be added in BaseLib.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Daniel Schaefer <git@danielschaefer.me>
Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Acked-by: Abner Chang <abner.chang@amd.com>
Reviewed-by: Andrei Warkentin <andrei.warkentin@intel.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
2023-02-16 05:53:28 +00:00
Liu, Zhiguang d103840cfb MdePkg/UnitTestHostBaseLib: Remove HOST_APPLICATION limitation
Remove HOST_APPLICATION limitation for UnitTestHostBaseLib, so that
this library can be used as BaseLib by Emulator.
Also, add some missing files

Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Ray Ni <ray.ni@intel.com>
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
2022-12-14 13:34:33 +00:00
Pedro Falcato 35043a5ec0 MdePkg/BaseLib: Fix out-of-bounds reads in SafeString
There was a OOB access in *StrHexTo* functions, when passed strings like
"XDEADBEEF".

OpenCore folks established an ASAN-equipped project to fuzz Ext4Dxe,
which was able to catch these (mostly harmless) issues.

Cc: Vitaly Cheptsov <vit9696@protonmail.com>
Cc: Marvin H?user <mhaeuser@posteo.de>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Pedro Falcato <pedro.falcato@gmail.com>
Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Jiewen Yao <Jiewen.yao@Intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2022-11-07 01:57:09 +00:00
Chao Li cd24eb578b MdePkg/BaseLib: BaseLib for LOONGARCH64 architecture.
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4053

Add LoongArch LOONGARCH64 BaseLib functions.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>

Signed-off-by: Chao Li <lichao@loongson.cn>
Co-authored-by: Baoqi Zhang <zhangbaoqi@loongson.cn>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
2022-10-14 02:16:33 +00:00
Pedro Falcato 92288f4334 MdePkg/BaseLib: Add CRC16-ANSI and CRC32c implementations
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3871

Add the CRC16-ANSI and CRC32C implementations previously found at
Features/Ext4Pkg/Ext4Dxe/Crc{16,32c}.c to BaseLib.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>

Signed-off-by: Pedro Falcato <pedro.falcato@gmail.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2022-06-13 02:41:35 +00:00
Rebecca Cran 48b919cb14 MdePkg: Remove RVCT support
RVCT is obsolete and no longer used.
Remove support for it.

Signed-off-by: Rebecca Cran <quic_rcran@quicinc.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
2022-05-13 14:58:54 +00:00
Min Xu 818bc9596d MdePkg: Introduce basic Tdx functions in BaseLib
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

Introduce basic Tdx functions in BaseLib:
 - TdCall ()
 - TdVmCall ()
 - TdIsEnabled ()

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Jason d3febfd9ad MdePkg: Replace Opcode with the corresponding instructions.
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3790

Replace Opcode with the corresponding instructions.
The code changes have been verified with CompareBuild.py tool, which
can be used to compare the results of two different EDK II builds to
determine if they generate the same binaries.
(tool link: https://github.com/mdkinney/edk2/tree/sandbox/CompareBuild)

Signed-off-by: Jason Lou <yun.lou@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
2022-03-01 01:45:47 +00:00
Michael Kubacki 2f88bd3a12 MdePkg: Apply uncrustify changes
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737

Apply uncrustify changes to .c/.h files in the MdePkg 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: Liming Gao <gaoliming@byosoft.com.cn>
2021-12-07 17:24:28 +00:00
Michael D Kinney d0e2f8232a MdePkg: Change OPTIONAL keyword usage style
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3760

Update all use of ', OPTIONAL' to ' OPTIONAL,' for function params.

Cc: Andrew Fish <afish@apple.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2021-12-07 17:24:28 +00:00
Michael D Kinney 5948ec3647 MdePkg: Reproduce builds across source format changes
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3688

* Use DEBUG_LINE_NUMBER instead of __LINE__.
* Use DEBUG_EXPRESSION_STRING instead of #Expression.

Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Tested-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2021-11-08 18:01:35 +00:00