/**
Fetch the number of boot CPUs from QEMU and expose it to UefiCpuPkg modules.
Set the mMaxCpuCount variable.
**/
VOID
MaxCpuCountInitialization (
VOID
)
{
UINT16 ProcessorCount;
RETURN_STATUS PcdStatus;
QemuFwCfgSelectItem (QemuFwCfgItemSmpCpuCount);
ProcessorCount = QemuFwCfgRead16 ();
//
// If the fw_cfg key or fw_cfg entirely is unavailable, load mMaxCpuCount
// from the PCD default. No change to PCDs.
//
if (ProcessorCount == 0) {
mMaxCpuCount = PcdGet32 (PcdCpuMaxLogicalProcessorNumber);
return;
}
//
// Otherwise, set mMaxCpuCount to the value reported by QEMU.
//
mMaxCpuCount = ProcessorCount;
//
// Additionally, tell UefiCpuPkg modules (a) the exact number of VCPUs, (b)
// to wait, in the initial AP bringup, exactly as long as it takes for all of
// the APs to report in. For this, we set the longest representable timeout
// (approx. 71 minutes).
//
PcdStatus = PcdSet32S (PcdCpuMaxLogicalProcessorNumber, ProcessorCount);
ASSERT_RETURN_ERROR (PcdStatus);
PcdStatus = PcdSet32S (PcdCpuApInitTimeOutInMicroSeconds, MAX_UINT32);
ASSERT_RETURN_ERROR (PcdStatus);
DEBUG ((DEBUG_INFO, "%a: QEMU reports %d processor(s)\n", __FUNCTION__,
ProcessorCount));
}
/**
Install default (fallback) table for SMBIOS Type 1.
In case QEMU has provided no Type 1 SMBIOS table in whole, prepare one here,
patch it with any referring saved patches, and install it.
@param[in] Smbios The EFI_SMBIOS_PROTOCOL instance used for
installing SMBIOS tables.
@param[in] ProducerHandle Passed on to Smbios->Add(), ProducerHandle
tracks the origin of installed SMBIOS tables.
@param[in,out] Context The BUILD_CONTEXT object tracking installed
tables and saved patches.
@retval EFI_SUCCESS A Type 1 table has already been installed from the
SMBIOS firmware configuration blob.
@retval EFI_SUCCESS No Type 1 table was installed previously, and installing
the default here has succeeded.
@return Error codes from the PATCH_FORMATTED() and
PATCH_UNFORMATTED() macros, except EFI_NOT_FOUND, which
is only an informative result of theirs.
**/
EFI_STATUS
EFIAPI
InstallSmbiosType1 (
IN EFI_SMBIOS_PROTOCOL *Smbios,
IN EFI_HANDLE ProducerHandle,
IN OUT BUILD_CONTEXT *Context
)
{
TABLE_CONTEXT *Table;
OVMF_TYPE1 OvmfType1;
EFI_STATUS Status;
EFI_SMBIOS_HANDLE SmbiosHandle;
Table = &Context->Table[1];
if (Table->Installed) {
return EFI_SUCCESS;
}
CopyMem (&OvmfType1, &mOvmfType1, sizeof OvmfType1);
QemuFwCfgSelectItem (QemuFwCfgItemSystemUuid);
OvmfType1.Base.Uuid.Data1 = SwapBytes32 (QemuFwCfgRead32 ());
OvmfType1.Base.Uuid.Data2 = SwapBytes16 (QemuFwCfgRead16 ());
OvmfType1.Base.Uuid.Data3 = SwapBytes16 (QemuFwCfgRead16 ());
QemuFwCfgReadBytes (sizeof OvmfType1.Base.Uuid.Data4,
&OvmfType1.Base.Uuid.Data4);
//
// Default contents ready. Formatted fields must be patched before installing
// the table, while strings in the unformatted area will be patched
// afterwards.
//
Status = PATCH_FORMATTED (Context, 1, &OvmfType1, Uuid);
switch (Status) {
case EFI_NOT_FOUND:
break;
case EFI_SUCCESS:
OvmfType1.Base.Uuid.Data1 = SwapBytes32 (OvmfType1.Base.Uuid.Data1);
OvmfType1.Base.Uuid.Data2 = SwapBytes16 (OvmfType1.Base.Uuid.Data2);
OvmfType1.Base.Uuid.Data3 = SwapBytes16 (OvmfType1.Base.Uuid.Data3);
break;
default:
return Status;
}
Status = PATCH_FORMATTED (Context, 1, &OvmfType1, WakeUpType);
if (Status != EFI_NOT_FOUND && Status != EFI_SUCCESS) {
return Status;
}
//
// Install SMBIOS table with patched formatted area and default strings.
//
SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
Status = Smbios->Add (Smbios, ProducerHandle, &SmbiosHandle,
(EFI_SMBIOS_TABLE_HEADER *) &OvmfType1);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a: Smbios->Add(): %r\n", __FUNCTION__, Status));
return Status;
}
Table->Installed = TRUE;
//
// Patch strings in the unformatted area of the installed table.
//
Status = PATCH_UNFORMATTED (Smbios, SmbiosHandle, Context, 1, &OvmfType1,
Manufacturer);
if (Status != EFI_NOT_FOUND && Status != EFI_SUCCESS) {
return Status;
}
Status = PATCH_UNFORMATTED (Smbios, SmbiosHandle, Context, 1, &OvmfType1,
ProductName);
if (Status != EFI_NOT_FOUND && Status != EFI_SUCCESS) {
return Status;
}
Status = PATCH_UNFORMATTED (Smbios, SmbiosHandle, Context, 1, &OvmfType1,
Version);
if (Status != EFI_NOT_FOUND && Status != EFI_SUCCESS) {
return Status;
}
Status = PATCH_UNFORMATTED (Smbios, SmbiosHandle, Context, 1, &OvmfType1,
SerialNumber);
if (Status != EFI_NOT_FOUND && Status != EFI_SUCCESS) {
return Status;
}
Status = PATCH_UNFORMATTED (Smbios, SmbiosHandle, Context, 1, &OvmfType1,
SKUNumber);
if (Status != EFI_NOT_FOUND && Status != EFI_SUCCESS) {
return Status;
}
Status = PATCH_UNFORMATTED (Smbios, SmbiosHandle, Context, 1, &OvmfType1,
Family);
if (Status != EFI_NOT_FOUND && Status != EFI_SUCCESS) {
return Status;
}
return EFI_SUCCESS;
}