Commit Graph

29890 Commits

Author SHA1 Message Date
Min Xu 299c44cd4f UefiCpuPkg: Setting initial-count register as the last step
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3711

Per SDM, changing the mode of APIC timer (from one-shot to periodic or
vice versa) by writing to the timer LVT entry does not start the timer.
To start the timer, it is necessary to write to the initial-count
register.

If initial-count is wrote before mode change, it's possible that timer
expired before the mode change. Thus failing the periodic mode.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Julien Grall <julien@xen.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
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
Min Xu c2e7be4055 OvmfPkg: Rename XenTimerDxe to LocalApicTimerDxe
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3711

XenTimerDxe is a local Apic timer driver and it has nothing to do
with Xen. So rename it to LocalApicTimerDxe.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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>
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Julien Grall <julien@xen.org>
Acked-by: Anthony PERARD <anthony.perard@citrix.com
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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
Min Xu 2520182122 OvmfPkg: Update IoMmuDxe to support TDX
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

The IOMMU protocol driver provides capabilities to set a DMA access
attribute and methods to allocate, free, map and unmap the DMA memory
for the PCI Bus devices.

The current IoMmuDxe driver supports DMA operations inside SEV guest.
To support DMA operation in TDX guest,
CC_GUEST_IS_XXX (PcdConfidentialComputingGuestAttr) is used to determine
if it is SEV guest or TDX guest.

Due to security reasons all DMA operations inside the SEV/TDX guest must
be performed on shared pages. The IOMMU protocol driver for the SEV/TDX
guest uses a bounce buffer to map guest DMA buffer to shared pages in
order to provide the support for DMA operations inside SEV/TDX guest.

The call of SEV or TDX specific function to set/clear EncMask/SharedBit
is determined by CC_GUEST_IS_XXX (PcdConfidentialComputingGuestAttr).

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu 07c721fea7 OvmfPkg/QemuFwCfgLib: Support Tdx in QemuFwCfgDxe
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

In the previous QemuFwCfgDxe only SEV is supported. This commit
introduce TDX support in QemuFwCfgDxe.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu fae5c1464d OvmfPkg: Add TdxDxe driver
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

TdxDxe driver is dispatched early in DXE, due to being list in APRIORI.
This module is responsible for below features:
 - Sets max logical cpus based on TDINFO
 - Sets PCI PCDs based on resource hobs
 - Set shared bit in MMIO region
 - Relocate Td mailbox and set its address in MADT table.

1. Set shared bit in MMIO region

Qemu allows a ROM device to set to ROMD mode (default) or MMIO mode.
When it is in ROMD mode, the device is mapped to guest memory and
satisfies read access directly.

In EDK2 Option ROM is treated as MMIO region. So Tdx guest access
Option ROM via TDVMCALL(MMIO). But as explained above, since Qemu set
the Option ROM to ROMD mode, the call of TDVMCALL(MMIO) always return
INVALID_OPERAND. Tdvf then falls back to direct access. This requires
to set the shared bit to corresponding PageTable entry. Otherwise it
triggers GP fault.

TdxDxe's entry point is the right place to set the shared bit in MMIO
region because Option ROM has not been discoverd yet.

2. Relocate Td mailbox and set the new address in MADT Mutiprocessor
Wakeup Table.

In TDX the guest firmware is designed to publish a multiprocessor-wakeup
structure to let the guest-bootstrap processor wake up guest-application
processors with a mailbox. The mailbox is memory that the guest firmware
can reserve so each guest virtual processor can have the guest OS send
a message to them. The address of the mailbox is recorded in the MADT
table. See [ACPI].

TdxDxe registers for protocol notification
(gQemuAcpiTableNotifyProtocolGuid) to call the AlterAcpiTable(), in
which MADT table is altered by the above Mailbox address. The protocol
will be installed in AcpiPlatformDxe when the MADT table provided by
Qemu is ready. This is to maintain the simplicity of the AcpiPlatformDxe.

AlterAcpiTable is the registered function which traverses the ACPI
table list to find the original MADT from Qemu. After the new MADT is
configured and installed, the original one will be uninstalled.

[ACPI] https://uefi.org/specs/ACPI/6.4/05_ACPI_Software_Programming_Model
/ACPI_Software_Programming_Model.html#multiprocessor-wakeup-structure

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu 5aa8018639 OvmfPkg/BaseMemEncryptTdxLib: Add TDX helper library
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

Add Intel Tdx helper library. The library provides the routines to:
-  set or clear Shared bit for a given memory region.
-  query whether TDX is enabled.

Please be noted, there a lot of duplicated codes for Page Table
operations. These codes should be moved to a common library
(PageTablesLib) so that it is more friendly for review and maintain.
There is a new feature requirement
https://bugzilla.tianocore.org/show_bug.cgi?id=847 which is to
implement the library. After the lib is introduced, BaseMemEncryptTdxLib
will be refactored.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu 9fdc70af6b OvmfPkg: Update AcpiPlatformDxe to alter MADT table
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

In TDX the guest firmware is designed to publish a multiprocessor-wakeup
structure to let the guest-bootstrap processor wake up guest-application
processors with a mailbox. The mailbox is memory that the guest firmware
can reserve so each guest virtual processor can have the guest OS send
a message to them. The address of the mailbox is recorded in the MADT
table. See [ACPI].

To maintain the simplicity of the AcpiPlatformDxe, the MADT ACPI table
will be altered in another driver (TdxDxe) by installing a protocol
to notify that the ACPI table provided by Qemu is ready. Then in TdxDxe
a notification functioin will be called to alter the MADT table to recorded
the mailbox address.

The protocol is gQemuAcpiTableNotifyProtocolGuid.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu cf17156d7d OvmfPkg: Update PlatformPei to support Tdx guest
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

OvmfPkg/PlatformPei is updated to support Tdx guest. There are below
major changes.
 - Set Tdx related PCDs
 - Publish Tdx RamRegions

In this patch there is another new function BuildPlatformInfoHob ().
This function builds EFI_HOB_PLATFORM_INFO which contains the
HostBridgeDevId. The hob is built in both Td guest and Non-Td guest.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu e23f8f52fd OvmfPkg: Update PlatformInitLib for Tdx guest
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

There are below changes in PlatformInitLib for Tdx guest:

1. Publish ram regions
In Tdx guest, the system memory is passed in TdHob by host VMM. So
the major task of PlatformTdxPublishRamRegions is to walk thru the
TdHob list and transfer the ResourceDescriptorHob and MemoryAllocationHob
to the hobs in DXE phase.

2. Build MemoryAllocationHob for Tdx Mailbox and Ovmf work area.

3. Update of PlatformAddressWidthInitialization. The physical
address width that Tdx guest supports is either 48 or 52.

4. Update of PlatformMemMapInitialization.
0xA0000 - 0xFFFFF is VGA bios region.  Platform initialization marks the
region as MMIO region. Dxe code maps MMIO region as IO region.
As TDX guest, MMIO region is maps as shared.  However VGA BIOS doesn't need
to be shared.  Guest TDX Linux maps VGA BIOS as private and accesses for
BIOS and stuck on repeating EPT violation.  VGA BIOS (more generally ROM
region) should be private.  Skip marking VGA BIOA region [0xa000, 0xfffff]
as MMIO in HOB.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu cc3620f304 UefiCpuPkg: Update AddressEncMask in CpuPageTable
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

MMIO region in Tdx guest is set with PcdTdxSharedBitMask in TdxDxe's
entry point. In SEV guest the page table entries is set with
PcdPteMemoryEncryptionAddressOrMask when creating 1:1 identity table.

So the AddressEncMask in GetPageTableEntry (@CpuPageTable.c) is either
PcdPteMemoryEncryptionAddressOrMask (in SEV guest), or
PcdTdxSharedBitMask (in TDX guest), or all-0 (in Legacy guest).

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: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
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
Min Xu fd306d1dbc MdeModulePkg: Add PcdTdxSharedBitMask
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

Guest Physical Address (GPA) space in Td guest is divided into private
and shared sub-spaces, determined by the SHARED bit of GPA. This PCD
holds the shared bit mask. Its default value is 0 and it will be set
in PlatformPei driver if it is of Td guest.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@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: Jian J Wang <jian.j.wang@intel.com>
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
Min Xu bec9104201 MdeModulePkg: Skip setting IA32_ERER.NXE if it has already been set
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

If IA32_ERER.NXE has already been set, skip setting it again.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@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: Jian J Wang <jian.j.wang@intel.com>
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
Min Xu 6b27c11690 OvmfPkg: Check Tdx in QemuFwCfgPei to avoid DMA operation
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

If TDX is enabled then we do not support DMA operation in PEI phase.
This is mainly because DMA in TDX guest requires using bounce buffer
(which need to allocate dynamic memory and allocating a PAGE size'd
buffer can be challenge in PEI phase).

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu 2b80269d98 OvmfPkg: Update Sec to support Tdx
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

There are below major changes in this commit.

1. SecEntry.nasm
In TDX BSP and APs goes to the same entry point in SecEntry.nasm.

BSP initialize the temporary stack and then jumps to SecMain, just as
legacy Ovmf does.

APs spin in a modified mailbox loop using initial mailbox structure.
Its structure defition is in OvmfPkg/Include/IndustryStandard/IntelTdx.h.
APs wait for command to see if the command is for me. If so execute the
command.

2. Sec/SecMain.c
When host VMM create the Td guest, the system memory informations are
stored in TdHob, which is a memory region described in Tdx metadata.
The system memory region in TdHob should be accepted before it can be
accessed. So the major task of this patch is to process the TdHobList
to accept the memory. After that TDVF follow the standard OVMF flow
and jump to PEI phase.

PcdUse1GPageTable is set to FALSE by default in OvmfPkgX64.dsc. It gives
no chance for Intel TDX to support 1G page table. To support 1G page
table this PCD is set to TRUE in OvmfPkgX64.dsc.

TDX_GUEST_SUPPORTED is defined in OvmfPkgX64.dsc. This macro wraps the
Tdx specific code.

TDX only works on X64, so the code is only valid in X64 arch.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu ccca1c2d5d OvmfPkg/Sec: Declare local variable as volatile in SecCoreStartupWithStack
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

Declare the local variables in SecCoreStartupWithStack that actually
move the data elements as volatile to prevent the optimizer from
replacing this function with the intrinsic memcpy().

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu b22ac35b75 OvmfPkg: Update PlatformInitLib to process Tdx hoblist
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

When host VMM create the Td guest, the system memory informations are
stored in TdHob, which is a memory region described in Tdx metadata.
The system memory region in TdHob should be accepted before it can be
accessed. So the newly added function (ProcessTdxHobList) is to process
the TdHobList to accept the memory. Because TdHobList is provided by
host VMM which is not trusted, so its content should be checked before
it is consumed by TDVF.

Because ProcessTdxHobList is to be called in SEC phase, so
PlatformInitLib.inf is updated to support SEC.

Note: In this patch it is BSP which accepts the pages. So there maybe
boot performance issue. There are some mitigations to this issue, such
as lazy accept, 2M accept page size, etc. We will re-visit here in the
future.

EFI_RESOURCE_MEMORY_UNACCEPTED is a new ResourceType in
EFI_HOB_RESOURCE_DESCRIPTOR. It is defined for the unaccepted memory
passed from Host VMM. This is proposed in microsoft/mu_basecore#66
files#diff-b20a11152d1ce9249c691be5690b4baf52069efadf2e2546cdd2eb663d80c9
e4R237 according to UEFI-Code-First. The proposal was approved in 2021
in UEFI Mantis, and will be added to the new PI.next specification.

Per the MdePkg reviewer's comments, before this new ResourceType is
added in the PI spec, it should not be in MdePkg. So it is now
defined as an internal implementation and will be moved to
MdePkg/Include/Pi/PiHob.h after it is added in PI spec.
See https://edk2.groups.io/g/devel/message/87641

PcdTdxAcceptPageSize is added for page accepting. Currently TDX supports
4K and 2M accept page size. The default value is 2M.

Tdx guest is only supported in X64. So for IA32 ProcessTdxHobList
just returns EFI_UNSUPPORTED.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu 96047b6663 OvmfPkg/PlatformInitLib: Move functions to Platform.c
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

Move functions in PlatformPei/Platform.c to PlatformInitLib/Platform.c.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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
Min Xu 10460942ff OvmfPkg/PlatformInitLib: Create MemDetect.c
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

Move functions in PlatformPei\MemDetect.c to PlatformInitLib\MemDetect.c.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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
Min Xu f53f449f15 OvmfPkg/PlatformPei: Refactor MiscInitialization
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

MiscInitialization is split into 2 functions:
 - PlatformMiscInitialization is for PlatformInitLib.
 - MiscInitialization calls PlatformMiscInitialization and then sets
   PCD. It is for PlatformPei.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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
Min Xu cec82a64cf OvmfPkg/PlatformPei: Refactor NoexecDxeInitialization
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

NoexecDxeInitialization is split into 2 functions:
 - PlatformNoexecDxeInitialization is for PlatformInitLib
 - NoexecDxeInitialization calls PlatformNoexecDxeInitialization and
   then sets PCD.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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
Min Xu 12e860a1e8 OvmfPkg/PlatformPei: Refactor MemMapInitialization
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

MemMapInitialization is split into 2 functions:
 - PlatformMemMapInitialization is for PlatformInfoLib
 - MemMapInitialization calls PlatformMemMapInitialization and then
   sets PCDs. It is for PlatformPei.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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
Min Xu e510326245 OvmfPkg/PlatformPei: Refactor InitializeRamRegions
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

InitializeRamRegions is refactored into 3 calls:
 - PlatformQemuInitializeRam
 - SevInitializeRam
 - PlatformQemuInitializeRamForS3

SevInitializeRam is not in PlatformInitLib. Because in the first stage
PlatformInitLib only support the basic platform featues.

PlatformQemuInitializeRamForS3 wraps the code which was previously in
InitializeRamRegions (many code in 2 if-checks).

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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
Min Xu f3801cf26c OvmfPkg/PlatformPei: Refactor QemuUc32BaseInitialization
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

Rename QemuUc32BaseInitialization to PlatformQemuUc32BaseInitialization.
This function is for PlatformInitLib.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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
Min Xu 432e4acd87 OvmfPkg/PlatformPei: Refactor MaxCpuCountInitialization
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

MaxCpuCountInitialization is splitted into two:
 - PlatformMaxCpuCountInitialization is for PlatformInitLib
 - MaxCpuCountInitialization is for PlatformPei. It calls
   PlatformMaxCpuCountInitialization then sets PCDs.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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
Min Xu 3dd47f9544 OvmfPkg/PlatformPei: Refactor AddressWidthInitialization
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

From this patch we start to restruct the functions which set PCDs into
two, one for PlatformInitLib, one for PlatformPei.

AddressWidthInitialization is the first one. It is splitted into two:
 - PlatformAddressWidthInitialization is for PlatformInitLib
 - AddressWidthInitialization is for PlatformPei. It calls
   PlatformAddressWidthInitialization then set PCDs.

Below functions are also refined for PlatformInitLib:
 - PlatformScanOrAdd64BitE820Ram
 - PlatformGetSystemMemorySizeAbove4gb
 - PlatformGetFirstNonAddress

All the SetPcd codes are removed from above functions.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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
Min Xu 6d2ce5fd5c OvmfPkg/PlatformPei: Refactor MiscInitialization for CloudHV
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

Refactor MiscInitialization for CloudHV to set PCD as other platforms
do. Because in the following patch we will split the functions which
set PCDs into two, one for PlatformInitLib, one for PlatformPei.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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
Min Xu 5a2574a82e OvmfPkg/PlatformPei: Refactor MiscInitialization
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

In MiscInitialization Microvm looks a little weird. Other platforms
call PcdSet16S to set the PcdOvmfHostBridgePciDevId with the value same
as PlatformInfoHob->HostBridgeDevId. But Microvm doesn't follow this
way. In switch-case 0xffff is Microvm, but set with
MICROVM_PSEUDO_DEVICE_ID. So we have to add a new function
( MiscInitializationForMicrovm ) for Microvm and delete the code in
MiscInitialization.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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
Min Xu 9a9b33b3d6 OvmfPkg/PlatformPei: Move global variables to PlatformInfoHob
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

The intention of PlatformInitLib is to extract the common function used
in OvmfPkg/PlatformPei. This lib will be used not only in PEI phase but
also in SEC phase. SEC phase cannot use global variables between
different functions. So PlatformInfoHob is created to hold the
informations shared between functions. For example, HostBridgeDevId
corespond to mHostBridgeDevId in PlatformPei.

In this patch we will first move below global variables to
PlatformInfoHob.
 - mBootMode
 - mS3Supported
 - mPhysMemAddressWidth
 - mMaxCpuCount
 - mHostBridgeDevId
 - mQ35SmramAtDefaultSmbase
 - mQemuUc32Base
 - mS3AcpiReservedMemorySize
 - mS3AcpiReservedMemoryBase

PlatformInfoHob also holds other information, for example,
PciIoBase / PciIoSize. This is because in SEC phase, PcdSetxxx
doesn't work. So we will restruct the functions which set PCDs
into two, one for PlatformInfoLib, one for PlatformPei.

So in this patch we first move global variables and PCDs to
PlatformInfoHob. All the changes are in OvmfPkg/PlatformPei.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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>
Cc: Sebastien Boeuf <sebastien.boeuf@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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
Min Xu 102cafedad OvmfPkg/PlatformInitLib: Add hob functions
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

In this patch of PlatformInitLib, below hob functions are introduced:
 - PlatformAddIoMemoryBaseSizeHob
 - PlatformAddIoMemoryRangeHob
 - PlatformAddMemoryBaseSizeHob
 - PlatformAddMemoryRangeHob
 - PlatformAddReservedMemoryBaseSizeHob

They correspond the below functions in OvmfPkg/PlatformPei:
 - AddIoMemoryBaseSizeHob
 - AddIoMemoryRangeHob
 - AddMemoryBaseSizeHob
 - AddMemoryRangeHob
 - AddReservedMemoryBaseSizeHob

After above hob functions are introduced in PlatformInitLib,
OvmfPkg/PlatformPei is refactored with this library.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu 57bcfc3b06 OvmfPkg: Create initial version of PlatformInitLib
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863

There are 3 variants of PlatformPei in OvmfPkg:
 - OvmfPkg/PlatformPei
 - OvmfPkg/XenPlatformPei
 - OvmfPkg/Bhyve/PlatformPei/PlatformPei.inf
These PlatformPeis can share many common codes, such as
Cmos / Hob / Memory / Platform related functions. This commit
(and its following several patches) are to create a PlatformInitLib
which wraps the common code called in above PlatformPeis.

In this initial version of PlatformInitLib, below Cmos related functions
are introduced:
 - PlatformCmosRead8
 - PlatformCmosWrite8
 - PlatformDebugDumpCmos

They correspond to the functions in OvmfPkg/PlatformPei:
 - CmosRead8
 - CmosWrite8
 - DebugDumpCmos

Considering this PlatformInitLib will be used in SEC phase, global
variables and dynamic PCDs are avoided. We use PlatformInfoHob
to exchange information between functions.

EFI_HOB_PLATFORM_INFO is the data struct which contains the platform
information, such as HostBridgeDevId, BootMode, S3Supported,
SmmSmramRequire, etc.

After PlatformInitLib is created, OvmfPkg/PlatformPei is refactored
with this library.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu 6a608255bb OvmfPkg: Add TdxMailboxLib
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

In Tdx BSP may issues commands to APs for some task, for example, to
accept pages paralelly. BSP also need to wait until all the APs have
done the task. TdxMailboxLib wraps these common funtions for BSP.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu 352eabdcd5 OvmfPkg: Add IntelTdx.h in OvmfPkg/Include/IndustryStandard
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

IntelTdx.h defines the defition used by TDX in OvmfPkg:
 - Mailbox related defitions,such as the data structure, command code,
   AP relocation defitions.

See Table 5.44 Multiprocessor Wakeup Mailbox Structure in below link.
https://uefi.org/specs/ACPI/6.4/05_ACPI_Software_Programming_Model/
ACPI_Software_Programming_Model.html#multiprocessor-wakeup-structure

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@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: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu 88da06ca76 UefiCpuPkg: Enable Tdx support in MpInitLib
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

In TDVF BSP and APs are simplified. BSP is the vCPU-0, while the others
are treated as APs.

So MP intialization is rather simple. ApWorker is not supported, BSP is
always the working processor, while the APs are just in a
wait-for-precedure state.

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: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
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
Min Xu d983b102b3 MdePkg: Add macro to check SEV / TDX guest
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

Add macros CC_GUEST_IS_SEV / CC_GUEST_IS_TDX to check SEV / TDX guest.

Cc: Michael Roth <michael.roth@amd.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Min Xu <min.m.xu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.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
Min Xu 7bed7ae6c5 UefiCpuPkg: Support TDX in BaseXApicX2ApicLib
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

MSR is accessed in BaseXApicX2ApicLib. In TDX some MSRs are accessed
directly from/to CPU. Some should be accessed via explicit requests
from the host VMM using TDCALL(TDG.VP.VMCALL). This is done by the
help of TdxLib.

Please refer to [TDX] Section 18.1
TDX: https://software.intel.com/content/dam/develop/external/us/en/
documents/tdx-module-1.0-public-spec-v0.931.pdf

Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@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: Ray Ni <ray.ni@intel.com>
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
Min Xu 3571fc906f MdePkg: Support IoRead/IoWrite for Tdx guest in BaseIoLibIntrinsic
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

This commit supports IoRead/IoWrite for SEV/TDX/Legacy guest in one
binary. It checks the guest type in runtime and then call corresponding
functions.

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
Min Xu d74e932681 MdePkg: Support IoFifo for Tdx guest in BaseIoLibIntrinsic
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

Previously IoFifo functions are in X64/IoFifoSev.nasm which supports
both SEV guest and Legacy guest. IoLibFifo.c is introduced to support
SEV/TDX/Legacy guest in one binary. It checks the guest type in runtime
and call corresponding functions then.

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
Min Xu b6b2de8848 MdePkg: Support mmio for Tdx guest in BaseIoLibIntrinsic
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

TDVF access MMIO with TDG.VP.VMCALL to invoke VMM provided emulation
functions. If the access to MMIO fails, it fall backs to the direct
access.

BaseIoLibIntrinsic.inf is the IoLib used by other packages. It will
not support I/O in Td guest. But some files are shared between
BaseIoLibIntrinsic and BaseIoLibIntrinsicSev (IoLib.c is the example). So
IoLibInternalTdxNull.c (which holds the null stub of the Td I/O routines)
is included in BaseIoLibIntrinsic.inf. BaseIoLibIntrinsic.inf doesn't
import TdxLib so that the Pkgs which include BaseIoLibIntrinsic.inf
need not include TdxLib.

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
Min Xu ab9d790901 MdePkg: Add helper functions for Tdx guest in BaseIoLibIntrinsic
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

Intel TDX architecture does not prescribe a specific software convention
to perform I/O from the guest TD. Guest TD providers have many choices to
provide I/O to the guest. The common I/O models are emulated devices,
para-virtualized devices, SRIOV devices and Direct Device assignments.

TDVF chooses para-virtualized I/O (Choice-A) which use the TDG.VP.VMCALL
function to invoke the funtions provided by the host VMM to perform I/O.
Another choice (Choice-B) is the emulation performed by the #VE handler.

There are 2 benefits of para-virtualized I/O:
1. Performance.
   VMEXIT/VMENTRY is skipped so that the performance is better than #VE
   handler.
2. De-couple with #VE handler.
   Choice-B depends on the #VE handler which means I/O is not available
   until #VE handler is installed. For example, in PEI phase #VE handler
   is installed in CpuMpPei, while communication with Qemu (via I/O port)
   happen earlier than it.

IoLibInternalTdx.c provides the helper functions for Tdx guest.
IoLibInternalTdxNull.c provides the null version of the helper functions.
It is included in the Non-X64 IoLib so that the build will not be broken.

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>
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
Min Xu de327f7d8a UefiCpuPkg/CpuExceptionHandler: Add base support for the #VE exception
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

Add base support to handle #VE exceptions. Update the common exception
handlers to invoke the VmTdExitHandleVe () function of the VmgExitLib
library when a #VE is encountered. A non-zero return code will propagate
to the targeted exception handler.

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: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
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
Min Xu daf8f642f3 OvmfPkg: Extend VmgExitLib to handle #VE exception
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

The base VmgExitLib library provides a default limited interface to
handle #VE exception. To provide full support, the OVMF version of
VmgExitLib is extended to provide full support of #VE handler.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jordan Justen <jordan.l.justen@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: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu eddcba40b5 UefiCpuPkg: Extend VmgExitLibNull to handle #VE exception
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

VmgExitLib performs the necessary processing to handle a #VC exception.
VmgExitLibNull is a NULL instance of VmgExitLib which provides a
default limited interface. In this commit VmgExitLibNull is extended to
handle a #VE exception with a default limited interface. A full feature
version of #VE handler will be created later.

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: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
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
Min Xu c3001cb744 MdePkg: Add TdxLib to wrap Tdx operations
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

TdxLib is created with functions to perform the related Tdx operation.
This includes functions for:
 - TdAcceptPages   : Accept pending private pages and initialize the pages
                     to all-0 using the TD ephemeral private key.
 - TdExtendRtmr    : Extend measurement to one of the RTMR registers.
 - TdSharedPageMask: Get the Td guest shared page mask which indicates it
                     is a Shared or Private page.
 - TdMaxVCpuNum    : Get the maximum number of virtual CPUs.
 - TdVCpuNum       : Get the number of virtual CPUs.

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
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
Min Xu 77228269e7 MdePkg: Update Cpuid.h for Tdx
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

Guest software can be designed to run either as a TD, as a legacy virtual
machine, or directly on the CPU, based on enumeration of its run-time
environment. [TDX-Module] Chap 10.2 defines the flow and the new CPUID
leaf 0x21.

[TDX-Module] Architecture Specification: Intel(R) Trust Domain Extensions
Module, Chap 10.2, 344425-003US, August 2021
https://www.intel.com/content/dam/develop/external/us/en/documents/
tdx-module-1.0-public-spec-v0.931.pdf

Cc: Ray Ni <ray.ni@intel.com>
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>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 08:15:12 +00:00
Min Xu 3f0c788a5f MdePkg: Add Tdx.h
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

Tdx.h includes the Intel Trust Domain Extension definitions.

Detailed information can be found in below document:
https://software.intel.com/content/dam/develop/external/us/en/
documents/tdx-module-1eas-v0.85.039.pdf

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Jiewen Yao <jiewen.yao@intel.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
Michael Kubacki b328bb54c6 BaseTools/Bin: Update GCC ARM compiler version
Updates to the latest release 11.2-2022.02. The previous download
page (version 10.3-2021.07) has been marked deprecated.

Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Yuwei Chen <yuwei.chen@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Sean Brogan <sean.brogan@microsoft.com>
2022-04-02 02:56:48 +00:00
Michael Kubacki 75628d27c0 OvmfPkg: Use windows-2019 VM image
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3890

The YAML file previously specified "windows-latest" which recently
moved to VS2022. To continue using VS2019 (at least in the short
term), the VM image needs to be explicitly set to "windows-2019".

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Sean Brogan <sean.brogan@microsoft.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
2022-04-02 02:56:48 +00:00
Michael Kubacki 3b0de44759 EmulatorPkg: Use windows-2019 VM image
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3890

The YAML file previously specified "windows-latest" which recently
moved to VS2022. To continue using VS2019 (at least in the short
term), the VM image needs to be explicitly set to "windows-2019".

Cc: Andrew Fish <afish@apple.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Abner Chang <abner.chang@hpe.com>
Cc: Nickle Wang <nickle.wang@hpe.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Sean Brogan <sean.brogan@microsoft.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
2022-04-02 02:56:48 +00:00
Michael Kubacki c3ca70669e .azurepipelines: Use windows-2019 VM image
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3890

The YAML file previously specified "windows-latest" which recently
moved to VS2022. To continue using VS2019 (at least in the short
term), the VM image needs to be explicitly set to "windows-2019".

Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Sean Brogan <sean.brogan@microsoft.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
2022-04-02 02:56:48 +00:00