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| author | Heinrich Schuchardt <heinrich.schuchardt@canonical.com> | 2024-09-16 23:12:18 +0200 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2024-10-04 04:53:21 +0000 |
| commit | f8c738577f813bbe6cb017cfbb29b70582ab32b4 (patch) | |
| tree | 912940249114ed2b0d925ad527a577cbd3cf172e /UefiCpuPkg/CpuDxeRiscV64 | |
| parent | 28dd588ca80c61c4bea9294785d5d884ad3f2c41 (diff) | |
| download | edk2-f8c738577f813bbe6cb017cfbb29b70582ab32b4.tar.gz edk2-f8c738577f813bbe6cb017cfbb29b70582ab32b4.tar.bz2 edk2-f8c738577f813bbe6cb017cfbb29b70582ab32b4.zip | |
UefiCpuPkg: RiscV64: initialize FPU
The OpenSSL library uses floating point registers.
The is no guarantee that a prior firmware stage has enabled the FPU.
Provide a library BaseRiscVFpuLib to
* Enable the FPU and set it to state 'dirty'.
* Clear the fcsr CSR.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Diffstat (limited to 'UefiCpuPkg/CpuDxeRiscV64')
| -rw-r--r-- | UefiCpuPkg/CpuDxeRiscV64/CpuDxe.c | 6 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxeRiscV64/CpuDxe.h | 1 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuDxeRiscV64/CpuDxeRiscV64.inf | 1 |
3 files changed, 8 insertions, 0 deletions
diff --git a/UefiCpuPkg/CpuDxeRiscV64/CpuDxe.c b/UefiCpuPkg/CpuDxeRiscV64/CpuDxe.c index c6bae100a9..6a22e01711 100644 --- a/UefiCpuPkg/CpuDxeRiscV64/CpuDxe.c +++ b/UefiCpuPkg/CpuDxeRiscV64/CpuDxe.c @@ -360,6 +360,12 @@ InitializeCpu ( ASSERT_EFI_ERROR (Status);
//
+ // Initialize FPU
+ //
+ Status = RiscVInitializeFpu ();
+ ASSERT_EFI_ERROR (Status);
+
+ //
// Install Boot protocol
//
Status = gBS->InstallProtocolInterface (
diff --git a/UefiCpuPkg/CpuDxeRiscV64/CpuDxe.h b/UefiCpuPkg/CpuDxeRiscV64/CpuDxe.h index d4d67778eb..40077d65bd 100644 --- a/UefiCpuPkg/CpuDxeRiscV64/CpuDxe.h +++ b/UefiCpuPkg/CpuDxeRiscV64/CpuDxe.h @@ -14,6 +14,7 @@ #include <Protocol/Cpu.h>
#include <Protocol/RiscVBootProtocol.h>
+#include <Library/BaseRiscVFpuLib.h>
#include <Library/BaseRiscVSbiLib.h>
#include <Library/BaseRiscVMmuLib.h>
#include <Library/BaseLib.h>
diff --git a/UefiCpuPkg/CpuDxeRiscV64/CpuDxeRiscV64.inf b/UefiCpuPkg/CpuDxeRiscV64/CpuDxeRiscV64.inf index 9d9a5ef8f2..cb0f71e42e 100644 --- a/UefiCpuPkg/CpuDxeRiscV64/CpuDxeRiscV64.inf +++ b/UefiCpuPkg/CpuDxeRiscV64/CpuDxeRiscV64.inf @@ -38,6 +38,7 @@ PeCoffGetEntryPointLib
RiscVSbiLib
RiscVMmuLib
+ RiscVFpuLib
CacheMaintenanceLib
[Sources]
|