<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <meta name="Generator" content="Microsoft Word 15 (filtered medium)"> <style></style> </head> <body lang="EN-US" link="blue" vlink="#954F72" style="word-wrap:break-word"> <div class="WordSection1"> Hi Jiewen, <o:p> </o:p> I did not fill these 2 variables for this patch because I thought to follow up fix for this issue separately because the AARCH64 instance does not fill it either and I meant for this patch to solely extends the coverage to x64 (and IA32). But please let me know if you think otherwise, I can add the x64 fix in this patch as well. But I do not have fix for AARCH64 since I am not familiar with how it should work. <o:p> </o:p> Thanks, Kun <o:p> </o:p> <div style="mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in"> From: <a href="mailto:jiewen.yao@intel.com">Yao, Jiewen</a> Sent: Sunday, December 27, 2020 16:18 To: <a href="mailto:kun.q@outlook.com">Kun Qin</a>; <a href="mailto:devel@edk2.groups.io"> devel@edk2.groups.io</a> Cc: <a href="mailto:ard.biesheuvel@arm.com">Ard Biesheuvel</a>; <a href="mailto:sami.mujawar@arm.com"> Sami Mujawar</a>; <a href="mailto:supreeth.venkatesh@arm.com">Supreeth Venkatesh</a> Subject: RE: [PATCH v1 04/15] StandaloneMmPkg: StandaloneMmMemLib: Extends support for X64 architecture </div> <o:p> </o:p> May I know where is the code to fill below? EFI_MMRAM_DESCRIPTOR *mMmMemLibInternalMmramRanges; UINTN mMmMemLibInternalMmramCount; > -----Original Message----- > From: Kun Qin <kun.q@outlook.com> > Sent: Saturday, December 19, 2020 2:50 AM > To: devel@edk2.groups.io > Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>; Sami Mujawar > <sami.mujawar@arm.com>; Yao, Jiewen <jiewen.yao@intel.com>; Supreeth > Venkatesh <supreeth.venkatesh@arm.com> > Subject: [PATCH v1 04/15] StandaloneMmPkg: StandaloneMmMemLib: > Extends support for X64 architecture > > This change extends StandaloneMmMemLib library to support X64 > architecture. The implementation is ported from > MdePkg/Library/SmmMemLib. > > Cc: Ard Biesheuvel <ard.biesheuvel@arm.com> > Cc: Sami Mujawar <sami.mujawar@arm.com> > Cc: Jiewen Yao <jiewen.yao@intel.com> > Cc: Supreeth Venkatesh <supreeth.venkatesh@arm.com> > > Signed-off-by: Kun Qin <kun.q@outlook.com> > --- > > StandaloneMmPkg/Library/StandaloneMmMemLib/X64/StandaloneMmMe > mLibInternal.c | 67 ++++++++++++++++++++ > > StandaloneMmPkg/Library/StandaloneMmMemLib/StandaloneMmMemLib > .inf | 6 +- > 2 files changed, 72 insertions(+), 1 deletion(-) > > diff --git > a/StandaloneMmPkg/Library/StandaloneMmMemLib/X64/StandaloneMm > MemLibInternal.c > b/StandaloneMmPkg/Library/StandaloneMmMemLib/X64/StandaloneMm > MemLibInternal.c > new file mode 100644 > index 000000000000..c5e21c583f44 > --- /dev/null > +++ > b/StandaloneMmPkg/Library/StandaloneMmMemLib/X64/StandaloneMm > MemLibInternal.c > @@ -0,0 +1,67 @@ > +/** @file > + Internal ARCH Specific file of MM memory check library. > + > + MM memory check library implementation. This library consumes > MM_ACCESS_PROTOCOL > + to get MMRAM information. In order to use this library instance, the > platform should produce > + all MMRAM range via MM_ACCESS_PROTOCOL, including the range for > firmware (like MM Core > + and MM driver) and/or specific dedicated hardware. > + > + Copyright (c) 2015, Intel Corporation. All rights reserved. > + Copyright (c) 2016 - 2018, ARM Limited. All rights reserved. > + > + SPDX-License-Identifier: BSD-2-Clause-Patent > + > +**/ > +#include <Library/BaseLib.h> > +#include <Library/BaseMemoryLib.h> > +#include <Library/DebugLib.h> > +#include <Library/HobLib.h> > +// > +// Maximum support address used to check input buffer > +// > +extern EFI_PHYSICAL_ADDRESS > mMmMemLibInternalMaximumSupportAddress; > + > +/** > + Calculate and save the maximum support address. > + > +**/ > +VOID > +MmMemLibInternalCalculateMaximumSupportAddress ( > + VOID > + ) > +{ > + VOID *Hob; > + UINT32 RegEax; > + UINT8 PhysicalAddressBits; > + > + // > + // Get physical address bits supported. > + // > + Hob = GetFirstHob (EFI_HOB_TYPE_CPU); > + if (Hob != NULL) { > + PhysicalAddressBits = ((EFI_HOB_CPU *) Hob)->SizeOfMemorySpace; > + } else { > + AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL); > + if (RegEax >= 0x80000008) { > + AsmCpuid (0x80000008, &RegEax, NULL, NULL, NULL); > + PhysicalAddressBits = (UINT8) RegEax; > + } else { > + PhysicalAddressBits = 36; > + } > + } > + // > + // IA-32e paging translates 48-bit linear addresses to 52-bit physical > addresses. > + // > + ASSERT (PhysicalAddressBits <= 52); > + if (PhysicalAddressBits > 48) { > + PhysicalAddressBits = 48; > + } > + > + // > + // Save the maximum support address in one global variable > + // > + mMmMemLibInternalMaximumSupportAddress = > (EFI_PHYSICAL_ADDRESS)(UINTN)(LShiftU64 (1, PhysicalAddressBits) - 1); > + DEBUG ((DEBUG_INFO, "mMmMemLibInternalMaximumSupportAddress > = 0x%lx\n", mMmMemLibInternalMaximumSupportAddress)); > +} > + > + > diff --git > a/StandaloneMmPkg/Library/StandaloneMmMemLib/StandaloneMmMem > Lib.inf > b/StandaloneMmPkg/Library/StandaloneMmMemLib/StandaloneMmMem > Lib.inf > index 49da02e54e6d..65ad0a48905c 100644 > --- > a/StandaloneMmPkg/Library/StandaloneMmMemLib/StandaloneMmMem > Lib.inf > +++ > b/StandaloneMmPkg/Library/StandaloneMmMemLib/StandaloneMmMem > Lib.inf > @@ -26,12 +26,15 @@ [Defines] > # > # The following information is for reference only and not required by the > build tools. > # > -# VALID_ARCHITECTURES = AARCH64 > +# VALID_ARCHITECTURES = X64 AARCH64 > # > > [Sources.Common] > StandaloneMmMemLib.c > > +[Sources.X64] > + X64/StandaloneMmMemLibInternal.c > + > [Sources.AARCH64] > AArch64/StandaloneMmMemLibInternal.c > > @@ -42,3 +45,4 @@ [Packages] > [LibraryClasses] > BaseMemoryLib > DebugLib > + HobLib > -- > 2.28.0.windows.1<o:p></o:p> <o:p> </o:p> </div> </body> </html> <div width="1" style="color:white;clear:both">_._,_._,_</div> <hr> Groups.io Links: You receive all messages sent to this group. <a target="_blank" href="https://edk2.groups.io/g/devel/message/69473">View/Reply Online (#69473)</a> | | <a target="_blank" href="https://groups.io/mt/79068287/1813853">Mute This Topic</a> | <a href="https://edk2.groups.io/g/devel/post">New Topic</a> <a href="https://edk2.groups.io/g/devel/editsub/1813853">Your Subscription</a> | <a href="mailto:devel+owner@edk2.groups.io">Contact Group Owner</a> | <a href="https://edk2.groups.io/g/devel/unsub">Unsubscribe</a> [edk2-devel-archive@redhat.com] <div width="1" style="color:white;clear:both">_._,_._,_</div>