diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2024-02-22 17:01:03 +0100 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2024-02-26 21:56:21 +0000 |
| commit | e2c9d8eba49754b644ed4599331395d777afc379 (patch) | |
| tree | 1e11e198d61feb9ec79d2721384653173cee16d7 | |
| parent | b48523046283e8ef670b5d2b9f53de6855f7d3bf (diff) | |
| download | edk2-e2c9d8eba49754b644ed4599331395d777afc379.tar.gz edk2-e2c9d8eba49754b644ed4599331395d777afc379.tar.bz2 edk2-e2c9d8eba49754b644ed4599331395d777afc379.zip | |
UefiCpuPkg/MpInitLib: Add support for multiple HOBs to SwitchApContext()
Rename the MpHandOff parameter to FirstMpHandOff. Add loops so the
function inspects all HOBs present in the system.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20240222160106.686484-4-kraxel@redhat.com>
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/MpLib.c | 35 | ||||
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/MpLib.h | 2 |
2 files changed, 24 insertions, 13 deletions
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.c b/UefiCpuPkg/Library/MpInitLib/MpLib.c index 76449f73f4..8eab8b636d 100644 --- a/UefiCpuPkg/Library/MpInitLib/MpLib.c +++ b/UefiCpuPkg/Library/MpInitLib/MpLib.c @@ -1938,31 +1938,42 @@ GetBspNumber ( This procedure allows the AP to switch to another section of
memory and continue its loop there.
- @param[in] MpHandOff Pointer to MP hand-off data structure.
+ @param[in] FirstMpHandOff Pointer to first MP hand-off HOB body.
**/
VOID
SwitchApContext (
- IN MP_HAND_OFF *MpHandOff
+ IN CONST MP_HAND_OFF *FirstMpHandOff
)
{
- UINTN Index;
- UINT32 BspNumber;
+ UINTN Index;
+ UINT32 BspNumber;
+ CONST MP_HAND_OFF *MpHandOff;
- BspNumber = GetBspNumber (MpHandOff);
+ BspNumber = GetBspNumber (FirstMpHandOff);
- for (Index = 0; Index < MpHandOff->CpuCount; Index++) {
- if (Index != BspNumber) {
- *(UINTN *)(UINTN)MpHandOff->Info[Index].StartupProcedureAddress = (UINTN)SwitchContextPerAp;
- *(UINT32 *)(UINTN)MpHandOff->Info[Index].StartupSignalAddress = MpHandOff->StartupSignalValue;
+ for (MpHandOff = FirstMpHandOff;
+ MpHandOff != NULL;
+ MpHandOff = GetNextMpHandOffHob (MpHandOff))
+ {
+ for (Index = 0; Index < MpHandOff->CpuCount; Index++) {
+ if (MpHandOff->ProcessorIndex + Index != BspNumber) {
+ *(UINTN *)(UINTN)MpHandOff->Info[Index].StartupProcedureAddress = (UINTN)SwitchContextPerAp;
+ *(UINT32 *)(UINTN)MpHandOff->Info[Index].StartupSignalAddress = MpHandOff->StartupSignalValue;
+ }
}
}
//
// Wait all APs waken up if this is not the 1st broadcast of SIPI
//
- for (Index = 0; Index < MpHandOff->CpuCount; Index++) {
- if (Index != BspNumber) {
- WaitApWakeup ((UINT32 *)(UINTN)(MpHandOff->Info[Index].StartupSignalAddress));
+ for (MpHandOff = FirstMpHandOff;
+ MpHandOff != NULL;
+ MpHandOff = GetNextMpHandOffHob (MpHandOff))
+ {
+ for (Index = 0; Index < MpHandOff->CpuCount; Index++) {
+ if (MpHandOff->ProcessorIndex + Index != BspNumber) {
+ WaitApWakeup ((UINT32 *)(UINTN)(MpHandOff->Info[Index].StartupSignalAddress));
+ }
}
}
}
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.h b/UefiCpuPkg/Library/MpInitLib/MpLib.h index fab2b2d493..3a7b9896cf 100644 --- a/UefiCpuPkg/Library/MpInitLib/MpLib.h +++ b/UefiCpuPkg/Library/MpInitLib/MpLib.h @@ -482,7 +482,7 @@ GetWakeupBuffer ( **/
VOID
SwitchApContext (
- IN MP_HAND_OFF *MpHandOff
+ IN CONST MP_HAND_OFF *FirstMpHandOff
);
/**
|