[edk2-devel] [PATCH v2 1/5] ArmVirtPkg: Library: Memory initialization for Cloud Hypervisor
Jianyong Wu
jianyong.wu at arm.com
Thu May 27 06:39:38 UTC 2021
Hi Laszlo,
Based on comments from Sami, maybe I need remove this patch and reuse the qemu memory initialization lib code. Thank for your comments.
Thanks
Jianyong
> -----Original Message-----
> From: Laszlo Ersek <lersek at redhat.com>
> Sent: Wednesday, May 19, 2021 2:12 PM
> To: devel at edk2.groups.io; Jianyong Wu <Jianyong.Wu at arm.com>;
> ardb+tianocore at kernel.org; Sami Mujawar <Sami.Mujawar at arm.com>
> Cc: hao.a.wu at intel.com; Justin He <Justin.He at arm.com>; Leif Lindholm
> <leif at nuviainc.com>
> Subject: Re: [edk2-devel] [PATCH v2 1/5] ArmVirtPkg: Library: Memory
> initialization for Cloud Hypervisor
>
> Sorry, just noticed:
>
> On 05/19/21 08:07, Laszlo Ersek wrote:
> > On 05/17/21 08:50, Jianyong Wu wrote:
> >> Cloud Hypervisor is kvm based VMM implemented in rust.
> >>
> >> This library populates the system memory map for the Cloud Hypervisor
> >> virtual platform.
> >>
> >> Cc: Laszlo Ersek <lersek at redhat.com>
> >> Cc: Ard Biesheuvel <ardb+tianocore at kernel.org>
> >> Cc: Leif Lindholm <leif at nuviainc.com>
> >> Signed-off-by: Jianyong Wu <jianyong.wu at arm.com>
> >> ---
> >> .../CloudHvVirtMemInfoPeiLib.inf | 47 ++++++++
> >> .../CloudHvVirtMemInfoLib.c | 94 ++++++++++++++++
> >> .../CloudHvVirtMemInfoPeiLibConstructor.c | 100
> ++++++++++++++++++
> >> 3 files changed, 241 insertions(+)
> >> create mode 100644
> >>
> ArmVirtPkg/Library/CloudHvVirtMemInfoLib/CloudHvVirtMemInfoPeiLib.inf
> >> create mode 100644
> >> ArmVirtPkg/Library/CloudHvVirtMemInfoLib/CloudHvVirtMemInfoLib.c
> >> create mode 100644
> >>
> ArmVirtPkg/Library/CloudHvVirtMemInfoLib/CloudHvVirtMemInfoPeiLibCon
> s
> >> tructor.c
> >>
> >> diff --git
> >>
> a/ArmVirtPkg/Library/CloudHvVirtMemInfoLib/CloudHvVirtMemInfoPeiLib.i
> >> nf
> >>
> b/ArmVirtPkg/Library/CloudHvVirtMemInfoLib/CloudHvVirtMemInfoPeiLib.i
> >> nf
> >> new file mode 100644
> >> index 000000000000..71dbf9c06ccc
> >> --- /dev/null
> >> +++
> b/ArmVirtPkg/Library/CloudHvVirtMemInfoLib/CloudHvVirtMemInfoPeiL
> >> +++ ib.inf
> >> @@ -0,0 +1,47 @@
> >> +#/* @file
> >> +#
> >> +# Copyright (c) 2011-2015, ARM Limited. All rights reserved.
> >
> > (1) New file, please refresh the end year in the (C) notice.
> >
> >> +# Copyright (c) 2014-2017, Linaro Limited. All rights reserved.
> >> +#
> >> +# SPDX-License-Identifier: BSD-2-Clause-Patent # #*/
> >> +
> >> +[Defines]
> >> + INF_VERSION = 0x0001001A
> >> + BASE_NAME = ClhVirtMemInfoPeiLib
>
> (4) s/Clh/CloudHv/
>
> Thanks
> Laszlo
>
> >> + FILE_GUID = 3E29D940-0591-EE6A-CAD4-223A9CF55E75
> >> + MODULE_TYPE = BASE
> >> + VERSION_STRING = 1.0
> >> + LIBRARY_CLASS = ArmVirtMemInfoLib|PEIM
> >> + CONSTRUCTOR = CloudHvVirtMemInfoPeiLibConstructor
> >> +
> >> +[Sources]
> >> + CloudHvVirtMemInfoLib.c
> >> + CloudHvVirtMemInfoPeiLibConstructor.c
> >> +
> >> +[Packages]
> >> + ArmPkg/ArmPkg.dec
> >> + ArmVirtPkg/ArmVirtPkg.dec
> >> + EmbeddedPkg/EmbeddedPkg.dec
> >> + MdeModulePkg/MdeModulePkg.dec
> >> + MdePkg/MdePkg.dec
> >> +
> >> +[LibraryClasses]
> >> + ArmLib
> >> + BaseMemoryLib
> >> + DebugLib
> >> + FdtLib
> >> + PcdLib
> >> + MemoryAllocationLib
> >> +
> >> +[Pcd]
> >> + gArmTokenSpaceGuid.PcdFdBaseAddress
> >> + gArmTokenSpaceGuid.PcdFvBaseAddress
> >> + gArmTokenSpaceGuid.PcdSystemMemoryBase
> >> + gArmTokenSpaceGuid.PcdSystemMemorySize
> >> +
> >> +[FixedPcd]
> >> + gArmTokenSpaceGuid.PcdFdSize
> >> + gArmTokenSpaceGuid.PcdFvSize
> >> + gArmVirtTokenSpaceGuid.PcdDeviceTreeInitialBaseAddress
> >> diff --git
> >> a/ArmVirtPkg/Library/CloudHvVirtMemInfoLib/CloudHvVirtMemInfoLib.c
> >> b/ArmVirtPkg/Library/CloudHvVirtMemInfoLib/CloudHvVirtMemInfoLib.c
> >> new file mode 100644
> >> index 000000000000..69f4e6ab6cc4
> >> --- /dev/null
> >> +++
> b/ArmVirtPkg/Library/CloudHvVirtMemInfoLib/CloudHvVirtMemInfoLib.
> >> +++ c
> >> @@ -0,0 +1,94 @@
> >> +/** @file
> >> +
> >> + Copyright (c) 2014-2017, Linaro Limited. All rights reserved.
> >
> > (2) New file, ARM (C) missing.
> >
> >> +
> >> + SPDX-License-Identifier: BSD-2-Clause-Patent
> >> +
> >> +**/
> >> +
> >> +#include <Base.h>
> >> +#include <Library/ArmLib.h>
> >> +#include <Library/BaseMemoryLib.h>
> >> +#include <Library/DebugLib.h>
> >> +#include <Library/MemoryAllocationLib.h>
> >> +
> >> +// Number of Virtual Memory Map Descriptors
> >> +#define MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS 5
> >> +
> >> +//
> >> +// mach-virt's core peripherals such as the UART, the GIC and the
> >> +RTC are // all mapped in the 'miscellaneous device I/O' region,
> >> +which we just map // in its entirety rather than device by device.
> >> +Note that it does not // cover any of the NOR flash banks or PCI resource
> windows.
> >> +//
> >> +#define MACH_VIRT_PERIPH_BASE 0x08000000
> >> +#define MACH_VIRT_PERIPH_SIZE SIZE_128MB
> >> +
> >> +//
> >> +// in cloud-hypervisor, 0x0 ~ 0x8000000 is reserved as normal memory
> >> +for UEFI //
> >> +#define CLOUDHV_UEFI_MEM_BASE 0x0
> >> +#define CLOUDHV_UEFI_MEM_SIZE 0x08000000
> >> +
> >> +/**
> >> + Return the Virtual Memory Map of your platform
> >> +
> >> + This Virtual Memory Map is used by MemoryInitPei Module to
> >> + initialize the MMU on your platform.
> >> +
> >> + @param[out] VirtualMemoryMap Array of
> ARM_MEMORY_REGION_DESCRIPTOR
> >> + describing a Physical-to-Virtual Memory
> >> + mapping. This array must be ended by a
> >> + zero-filled entry. The allocated memory
> >> + will not be freed.
> >> +
> >> +**/
> >> +VOID
> >> +ArmVirtGetMemoryMap (
> >> + OUT ARM_MEMORY_REGION_DESCRIPTOR **VirtualMemoryMap
> >> + )
> >> +{
> >> + ARM_MEMORY_REGION_DESCRIPTOR *VirtualMemoryTable;
> >> +
> >> + ASSERT (VirtualMemoryMap != NULL);
> >> +
> >> + VirtualMemoryTable = AllocatePool (sizeof
> (ARM_MEMORY_REGION_DESCRIPTOR) *
> >> +
> >> + MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS);
> >> +
> >> + if (VirtualMemoryTable == NULL) {
> >> + DEBUG ((DEBUG_ERROR, "%a: Error: Failed AllocatePool()\n",
> __FUNCTION__));
> >> + return;
> >> + }
> >> +
> >> + // System DRAM
> >> + VirtualMemoryTable[0].PhysicalBase = PcdGet64
> >> + (PcdSystemMemoryBase); VirtualMemoryTable[0].VirtualBase =
> VirtualMemoryTable[0].PhysicalBase;
> >> + VirtualMemoryTable[0].Length = PcdGet64 (PcdSystemMemorySize);
> >> + VirtualMemoryTable[0].Attributes =
> ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK;
> >> +
> >> + DEBUG ((DEBUG_INFO, "%a: Dumping System DRAM Memory Map:\n"
> >> + "\tPhysicalBase: 0x%lX\n"
> >> + "\tVirtualBase: 0x%lX\n"
> >> + "\tLength: 0x%lX\n",
> >> + __FUNCTION__,
> >> + VirtualMemoryTable[0].PhysicalBase,
> >> + VirtualMemoryTable[0].VirtualBase,
> >> + VirtualMemoryTable[0].Length));
> >> +
> >> + // Memory mapped peripherals (UART, RTC, GIC, virtio-mmio, etc)
> >> + VirtualMemoryTable[1].PhysicalBase = MACH_VIRT_PERIPH_BASE;
> >> + VirtualMemoryTable[1].VirtualBase = MACH_VIRT_PERIPH_BASE;
> >> + VirtualMemoryTable[1].Length = MACH_VIRT_PERIPH_SIZE;
> >> + VirtualMemoryTable[1].Attributes =
> ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
> >> +
> >> + // Map the FV region as normal executable memory
> >> + VirtualMemoryTable[2].PhysicalBase = PcdGet64 (PcdFvBaseAddress);
> >> + VirtualMemoryTable[2].VirtualBase =
> VirtualMemoryTable[2].PhysicalBase;
> >> + VirtualMemoryTable[2].Length = FixedPcdGet32 (PcdFvSize);
> >> + VirtualMemoryTable[2].Attributes =
> ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK;
> >> +
> >> + // End of Table
> >> + ZeroMem (&VirtualMemoryTable[3], sizeof
> >> + (ARM_MEMORY_REGION_DESCRIPTOR));
> >> +
> >> + *VirtualMemoryMap = VirtualMemoryTable; }
> >> diff --git
> >>
> a/ArmVirtPkg/Library/CloudHvVirtMemInfoLib/CloudHvVirtMemInfoPeiLibC
> o
> >> nstructor.c
> >>
> b/ArmVirtPkg/Library/CloudHvVirtMemInfoLib/CloudHvVirtMemInfoPeiLibC
> o
> >> nstructor.c
> >> new file mode 100644
> >> index 000000000000..062dfcee1d66
> >> --- /dev/null
> >> +++
> b/ArmVirtPkg/Library/CloudHvVirtMemInfoLib/CloudHvVirtMemInfoPeiL
> >> +++ ibConstructor.c
> >> @@ -0,0 +1,100 @@
> >> +/** @file
> >> +
> >> + Copyright (c) 2014-2017, Linaro Limited. All rights reserved.
> >
> > (3) New file, ARM (C) missing.
> >
> > With those updates:
> >
> > Acked-by: Laszlo Ersek <lersek at redhat.com>
> >
> > (BTW I'd like at least one of Ard, Leif, and Sami to give an R-b for
> > this patch set.)
> >
> > Thanks,
> > Laszlo
> >
> >> +
> >> + SPDX-License-Identifier: BSD-2-Clause-Patent
> >> +
> >> +**/
> >> +
> >> +#include <Base.h>
> >> +#include <Library/DebugLib.h>
> >> +#include <Library/PcdLib.h>
> >> +#include <libfdt.h>
> >> +
> >> +RETURN_STATUS
> >> +EFIAPI
> >> +CloudHvVirtMemInfoPeiLibConstructor (
> >> + VOID
> >> + )
> >> +{
> >> + VOID *DeviceTreeBase;
> >> + INT32 Node, Prev;
> >> + UINT64 NewBase, CurBase;
> >> + UINT64 NewSize, CurSize;
> >> + CONST CHAR8 *Type;
> >> + INT32 Len;
> >> + CONST UINT64 *RegProp;
> >> + RETURN_STATUS PcdStatus;
> >> +
> >> + NewBase = 0;
> >> + NewSize = 0;
> >> +
> >> + DeviceTreeBase = (VOID *)(UINTN)PcdGet64
> >> + (PcdDeviceTreeInitialBaseAddress);
> >> + ASSERT (DeviceTreeBase != NULL);
> >> +
> >> + //
> >> + // Make sure we have a valid device tree blob // ASSERT
> >> + (fdt_check_header (DeviceTreeBase) == 0);
> >> +
> >> + //
> >> + // Look for the lowest memory node // for (Prev = 0;; Prev =
> >> + Node) {
> >> + Node = fdt_next_node (DeviceTreeBase, Prev, NULL);
> >> + if (Node < 0) {
> >> + break;
> >> + }
> >> +
> >> + //
> >> + // Check for memory node
> >> + //
> >> + Type = fdt_getprop (DeviceTreeBase, Node, "device_type", &Len);
> >> + if (Type && AsciiStrnCmp (Type, "memory", Len) == 0) {
> >> + //
> >> + // Get the 'reg' property of this node. For now, we will assume
> >> + // two 8 byte quantities for base and size, respectively.
> >> + //
> >> + RegProp = fdt_getprop (DeviceTreeBase, Node, "reg", &Len);
> >> + if (RegProp != 0 && Len == (2 * sizeof (UINT64))) {
> >> +
> >> + CurBase = fdt64_to_cpu (ReadUnaligned64 (RegProp));
> >> + CurSize = fdt64_to_cpu (ReadUnaligned64 (RegProp + 1));
> >> +
> >> + DEBUG ((DEBUG_INFO, "%a: System RAM @ 0x%lx - 0x%lx\n",
> >> + __FUNCTION__, CurBase, CurBase + CurSize - 1));
> >> +
> >> + if (NewBase > CurBase || NewBase == 0) {
> >> + NewBase = CurBase;
> >> + NewSize = CurSize;
> >> + }
> >> + } else {
> >> + DEBUG ((DEBUG_ERROR, "%a: Failed to parse FDT memory node\n",
> >> + __FUNCTION__));
> >> + }
> >> + }
> >> + }
> >> +
> >> + //
> >> + // Make sure the start of DRAM matches our expectation // ASSERT
> >> + (FixedPcdGet64 (PcdSystemMemoryBase) == NewBase); PcdStatus =
> >> + PcdSet64S (PcdSystemMemorySize, NewSize);
> ASSERT_RETURN_ERROR
> >> + (PcdStatus);
> >> +
> >> + //
> >> + // We need to make sure that the machine we are running on has at
> >> + least // 128 MB of memory configured, and is currently executing
> >> + this binary from // NOR flash. This prevents a device tree image
> >> + in DRAM from getting // clobbered when our caller installs
> >> + permanent PEI RAM, before we have a // chance of marking its
> >> + location as reserved or copy it to a freshly // allocated block in the
> permanent PEI RAM in the platform PEIM.
> >> + //
> >> + ASSERT (NewSize >= SIZE_128MB);
> >> + ASSERT (
> >> + (((UINT64)PcdGet64 (PcdFdBaseAddress) +
> >> + (UINT64)PcdGet32 (PcdFdSize)) <= NewBase) ||
> >> + ((UINT64)PcdGet64 (PcdFdBaseAddress) >= (NewBase + NewSize)));
> >> +
> >> + return RETURN_SUCCESS;
> >> +}
> >>
> >
IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#75752): https://edk2.groups.io/g/devel/message/75752
Mute This Topic: https://groups.io/mt/82880899/1813853
Group Owner: devel+owner at edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [edk2-devel-archive at redhat.com]
-=-=-=-=-=-=-=-=-=-=-=-
More information about the edk2-devel-archive
mailing list