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* OvmfPkg/Sec: Move SEV-ES SEC workarea definition to common header fileTom Lendacky2021-01-071-4/+2
| | | | | | | | | | | | | | | | BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3108 In order to allow for the SEV-ES workarea to be used for other purposes and by other files, move the definition into the BaseMemEncryptSevLib header file, MemEncryptSevLib.h. Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Ard Biesheuvel <ard.biesheuvel@arm.com> Cc: Brijesh Singh <brijesh.singh@amd.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Message-Id: <07d66f3384bd54da97d540e89b9f3473a6d17231.1610045305.git.thomas.lendacky@amd.com>
* OvmfPkg/Sec: Enable cache early to speed up bootingTom Lendacky2020-08-171-0/+7
| | | | | | | | | | | | | | | | | | | BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198 Currently, the OVMF code relies on the hypervisor to enable the cache support on the processor in order to improve the boot speed. However, with SEV-ES, the hypervisor is not allowed to change the CR0 register to enable caching. Update the OVMF Sec support to enable caching in order to improve the boot speed when running as an SEV-ES guest. Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Ard Biesheuvel <ard.biesheuvel@arm.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
* OvmfPkg/Sec: Add #VC exception handling for Sec phaseTom Lendacky2020-08-171-13/+169
| | | | | | | | | | | | | | | | | | | | | | BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198 An SEV-ES guest will generate a #VC exception when it encounters a non-automatic exit (NAE) event. It is expected that the #VC exception handler will communicate with the hypervisor using the GHCB to handle the NAE event. NAE events can occur during the Sec phase, so initialize exception handling early in the OVMF Sec support. Before establishing the exception handling, validate that the supported version of the SEV-ES protocol in OVMF is supported by the hypervisor. Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Ard Biesheuvel <ard.biesheuvel@arm.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
* OvmfPkg: replace old EFI_D_ debug levels with new DEBUG_ onesRebecca Cran2020-04-301-14/+14
| | | | | | | | | | | | | Generated mechanically with: find OvmfPkg -type f -exec sed -i -e 's/EFI_D_/DEBUG_/g' {} \; Signed-off-by: Rebecca Cran <rebecca@bsdio.com> Cc: Philippe Mathieu-Daude <philmd@redhat.com> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Ard Biesheuvel <ard.biesheuvel@arm.com> Cc: Laszlo Ersek <lersek@redhat.com> Message-Id: <20200429215327.606467-1-rebecca@bsdio.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
* OvmfPkg: strip trailing whitespaceLeif Lindholm2019-10-041-17/+17
| | | | | | | | | | | | | Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Anthony Perard <anthony.perard@citrix.com> Cc: Julien Grall <julien.grall@arm.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
* OvmfPkg/Sec: fix out-of-bounds readsLaszlo Ersek2019-04-241-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RH covscan justifiedly reports that accessing "EFI_FFS_FILE_HEADER.Size" and "EFI_COMMON_SECTION_HEADER.Size", which both are of type UINT8[3], through (UINT32*), is undefined behavior: > Error: OVERRUN (CWE-119): > edk2-89910a39dcfd/OvmfPkg/Sec/SecMain.c:283: overrun-local: Overrunning > array of 3 bytes at byte offset 3 by dereferencing pointer > "(UINT32 *)File->Size". > # 281| > # 282| File = (EFI_FFS_FILE_HEADER*)(UINTN) CurrentAddress; > # 283|-> Size = *(UINT32*) File->Size & 0xffffff; > # 284| if (Size < (sizeof (*File) + sizeof (EFI_COMMON_SECTION_HEADER))) { > # 285| return EFI_VOLUME_CORRUPTED; > > Error: OVERRUN (CWE-119): > edk2-89910a39dcfd/OvmfPkg/Sec/SecMain.c:614: overrun-local: Overrunning > array of 3 bytes at byte offset 3 by dereferencing pointer > "(UINT32 *)File->Size". > # 612| > # 613| File = (EFI_FFS_FILE_HEADER*)(UINTN) CurrentAddress; > # 614|-> Size = *(UINT32*) File->Size & 0xffffff; > # 615| if (Size < sizeof (*File)) { > # 616| return EFI_NOT_FOUND; > > Error: OVERRUN (CWE-119): > edk2-89910a39dcfd/OvmfPkg/Sec/SecMain.c:639: overrun-local: Overrunning > array of 3 bytes at byte offset 3 by dereferencing pointer > "(UINT32 *)Section->Size". > # 637| Section = (EFI_COMMON_SECTION_HEADER*)(UINTN) CurrentAddress; > # 638| > # 639|-> Size = *(UINT32*) Section->Size & 0xffffff; > # 640| if (Size < sizeof (*Section)) { > # 641| return EFI_NOT_FOUND; Fix these by invoking the FFS_FILE_SIZE() and SECTION_SIZE() macros, which by now have been fixed too. Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Jordan Justen <jordan.l.justen@intel.com> Bugzilla: https://bugzilla.tianocore.org/show_bug.cgi?id=1710 Issue: scan-1008.txt Issue: scan-1009.txt Issue: scan-1010.txt Signed-off-by: Laszlo Ersek <lersek@redhat.com> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com> Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
* OvmfPkg: Replace BSD License with BSD+Patent LicenseMichael D Kinney2019-04-091-7/+1
| | | | | | | | | | | | | | | | | | | | https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
* OvmfPkg/SecMain: Fix stack switching to permanent memoryGe Song2017-09-061-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In earlier PEI stage, temporary memory at PcdOvmfSecPeiTempRamBase is employed as stack and heap. We move them to the new room and do some relocation fixup when permanent memory becomes available. TemporaryRamMigration() is responsible for switching the stack. Before entering TemporaryRamMigration(), Ebp/Rbp is populated with the content of Esp/Rsp and used as frame pointer. After the execution of SetJump/LongJump, stack migrates to new position while the context keeps unchanged. But when TemporaryRamMigration() exits, Esp/Rsp is filled with the content of Ebp/Rbp to destroy this stack frame. The result is, stack switches back to previous temporary memory. When permanent memory becomes available, modules that have registered themselves for shadowing will be scheduled to execute. Some of them need to consume more memory(heap/stack). Contrast to temporary stack, permanent stack possesses larger space. The potential risk is overflowing the stack if stack staying in temporary memory. When it happens, system may crash during S3 resume. More detailed information: > (gdb) disassemble /r > Dump of assembler code for function TemporaryRamMigration: > 0x00000000fffcd29c <+0>: 55 push %rbp > 0x00000000fffcd29d <+1>: 48 89 e5 mov %rsp,%rbp > 0x00000000fffcd2a0 <+4>: 48 81 ec 70 01 00 00 sub > $0x170,%rsp > ... > ... > 0x00000000fffcd425 <+393>: e8 80 10 00 00 callq 0xfffce4aa > <SaveAndSetDebugTimerInterrupt> > => 0x00000000fffcd42a <+398>: b8 00 00 00 00 mov $0x0,%eax > 0x00000000fffcd42f <+403>: c9 leaveq > 0x00000000fffcd430 <+404>: c3 retq > End of assembler dump. See the description of leave(opcode: c9), from Intel 64 and IA-32 Architectures Software Developer's Manual, Volume 2A "Releases the stack frame set up by an earlier ENTER instruction. The LEAVE instruction copies the frame pointer (in the EBP register) into the stack pointer register (ESP), which releases the stack space allocated to the stack frame. The old frame pointer (the frame pointer for the calling procedure that was saved by the ENTER instruction) is then popped from the stack into the EBP register, restoring the calling procedure’s stack frame." To solve this, update Ebp/Rbp too when Esp/Rsp is updated Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ge Song <ge.song@hxt-semitech.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
* OvmfPkg: Fix typos in commentsGary Lin2016-10-191-1/+1
| | | | | | | | | | | | | | | - Incude -> Include - futhure -> future - Predfined -> Predefined - minimue -> minimum - predeined -> predefined - excute -> execute - dirver -> driver - inforamtion -> information Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Gary Lin <glin@suse.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
* OvmfPkg/Sec: Support SECTION2 DXEFV typesThomas Palmer2016-07-271-3/+13
| | | | | | | | | | | | | | | | Support down-stream projects that require large DXEFV sizes greater than 16MB by handling SECTION2 common headers. These are already created by the build tools when necessary. Use IS_SECTION2 and SECTION2_SIZE macros to calculate accurate image sizes when appropriate. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Thomas Palmer <thomas.palmer@hpe.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Regression-tested-by: Laszlo Ersek <lersek@redhat.com> [lersek@redhat.com: fix NB->MB typo in commit message] Signed-off-by: Laszlo Ersek <lersek@redhat.com>
* OvmfPkg/Sec: Use EFI_COMMON_SECTION_HEADER to avoid castsThomas Palmer2016-07-271-4/+5
| | | | | | | | | | | Drop superfluous casts. There is no change in behavior because EFI_FIRMWARE_VOLUME_IMAGE_SECTION is just a typedef of EFI_COMMON_SECTION_HEADER. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Thomas Palmer <thomas.palmer@hpe.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
* OvmfPkg: decompress FVs on S3 resume if SMM_REQUIRE is setLaszlo Ersek2015-11-301-2/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If OVMF was built with -D SMM_REQUIRE, that implies that the runtime OS is not trusted and we should defend against it tampering with the firmware's data. One such datum is the PEI firmware volume (PEIFV). Normally PEIFV is decompressed on the first boot by SEC, then the OS preserves it across S3 suspend-resume cycles; at S3 resume SEC just reuses the originally decompressed PEIFV. However, if we don't trust the OS, then SEC must decompress PEIFV from the pristine flash every time, lest we execute OS-injected code or work with OS-injected data. Due to how FVMAIN_COMPACT is organized, we can't decompress just PEIFV; the decompression brings DXEFV with itself, plus it uses a temporary output buffer and a scratch buffer too, which even reach above the end of the finally installed DXEFV. For this reason we must keep away a non-malicious OS from DXEFV too, plus the memory up to PcdOvmfDecomprScratchEnd. The delay introduced by the LZMA decompression on S3 resume is negligible. If -D SMM_REQUIRE is not specified, then PcdSmmSmramRequire remains FALSE (from the DEC file), and then this patch has no effect (not counting some changed debug messages). If QEMU doesn't support S3 (or the user disabled it on the QEMU command line), then this patch has no effect also. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19037 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg: Sec: assert the build-time calculated end of the scratch bufferLaszlo Ersek2015-11-301-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | The DecompressMemFvs() function in "OvmfPkg/Sec/SecMain.c" uses more memory, temporarily, than what PEIFV and DXEFV will ultimately need. First, it uses an output buffer for decompression, second, the decompression itself needs a scratch buffer (and this scratch buffer is the highest area that SEC uses). DecompressMemFvs() used to be called on normal boots only (ie. not on S3 resume), which is why the decompression output buffer and the scratch buffer were allowed to scribble over RAM. However, we'll soon start to worry during S3 resume that the runtime OS might tamper with the pre-decompressed PEIFV, and we'll decompress the firmware volumes on S3 resume too, from pristine flash. For this we'll need to know the end of the scratch buffer in advance, so we can prepare a non-malicious OS for it. Calculate the end of the scratch buffer statically in the FDF files, and assert in DecompressMemFvs() that the runtime decompression will match it. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19036 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg: Sec: force reinit of BaseExtractGuidedSectionLib handler tableLaszlo Ersek2015-11-301-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BaseExtractGuidedSectionLib uses a table at the static physical address PcdGuidedExtractHandlerTableAddress, and modules that are linked against BaseExtractGuidedSectionLib are expected to work together on that table. Namely, some modules can register handlers for GUIDed sections, some other modules can decode such sections with the pre-registered handlers. The table carries persistent information between these modules. BaseExtractGuidedSectionLib checks a table signature whenever it is used (by whichever module that is linked against it), and at the first use (identified by a signature mismatch) it initializes the table. One of the module types that BaseExtractGuidedSectionLib can be used with is SEC, if the SEC module in question runs with the platform's RAM already available. In such cases the question emerges whether the initial contents of the RAM (ie. contents that predate the very first signature check) can be trusted. Normally RAM starts out with all zeroes (leading to a signature mismatch on the first check); however a malicious runtime OS can populate the area with some payload, then force a warm platform reset or an S3 suspend-and-resume. In such cases the signature check in the SEC module might not fire, and ExtractGuidedSectionDecode() might run code injected by the runtime OS, as part of SEC (ie. with high privileges). Therefore we clear the handler table in SEC. See also git commit ad43bc6b2e (SVN rev 15433) -- this patch secures the (d) and (e) code paths examined in that commit. Furthermore, a non-malicious runtime OS will observe no change in behavior; see case (c) in said commit. Cc: Michael Kinney <michael.d.kinney@intel.com> Cc: Jordan Justen <jordan.l.justen@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> [michael.d.kinney@intel.com: prevent VS20xx loop intrinsic with volatile] Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Reviewed-by: Michael Kinney <michael.d.kinney@intel.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19035 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg: Sec: Fix SOURCE_DEBUG_ENABLE ASSERT()Michael Kinney2015-10-161-1/+10
| | | | | | | | | | | | | | | | | | | | | The update to the LocalApicLib instances to make sure the Local APIC is initialized before use (SVN r18595 / git commit 6d72ff7d9daf) generates an ASSERT() when SOURCE_DEBUG_ENABLE is enabled for OVMF. The fix is to initialize the Local APIC Timer and mask it before initializing the DebugAgent. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Regression-tested-by: Laszlo Ersek <lersek@redhat.com> [lersek@redhat.com: rewrap code comment, rewrap commit msg, add precise commit ref] Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18622 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg: fix conversion specifiers in DEBUG format stringsLaszlo Ersek2015-07-281-4/+4
| | | | | | | | | | | | Cc: Scott Duplichan <scott@notabs.org> Cc: Jordan Justen <jordan.l.justen@intel.com> Reported-by: Scott Duplichan <scott@notabs.org> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Build-tested-by: Scott Duplichan <scott@notabs.org> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18095 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg/Sec: Don't decompress the FV on S3 resumeJordan Justen2014-03-041-2/+52
| | | | | | | | | | | | | | Since we marked the FV at PcdOvmfPeiMemFvBase as ACPI NVS memory, we can use it on S3 resume. The FV at PcdOvmfDxeMemFvBase may have been overwritten by the OS, but we do not use it's contents on S3 resume. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15296 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg: Split MAINFV into a separate PEI and DXE FVsJordan Justen2014-01-211-16/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By splitting the PEI and DXE phases into separate FVs, we can only reserve the PEI FV for ACPI S3 support. This should save about 7MB. Unfortunately, this all has to happen in a single commit. DEC: * Remove PcdOvmfMemFv(Base|Size) * Add PcdOvmfPeiMemFv(Base|Size) * Add PcdOvmfDxeMemFv(Base|Size) FDF: * Add new PEIFV. Move PEI modules here. * Remove MAINFV * Add PEIFV and DXEFV into FVMAIN_COMPACT - They are added as 2 sections of a file, and compressed together so they should retain good compression * PcdOvmf(Pei|Dxe)MemFv(Base|Size) are set SEC: * Find both the PEI and DXE FVs after decompression. - Copy them separately to their memory locations. Platform PEI driver: * Fv.c: Publish both FVs as appropriate * MemDetect.c: PcdOvmfMemFv(Base|Size) => PcdOvmfDxeMemFv(Base|Size) OVMF.fd before: Non-volatile data storage FVMAIN_COMPACT uncompressed FV FFS file LZMA compressed MAINFV uncompressed individual PEI modules uncompressed FV FFS file compressed with PI_NONE DXEFV uncompressed individual DXE modules uncompressed SECFV uncompressed OVMF.fd after: Non-volatile data storage FVMAIN_COMPACT uncompressed FV FFS file LZMA compressed PEIFV uncompressed individual PEI modules uncompressed DXEFV uncompressed individual DXE modules uncompressed SECFV uncompressed Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15151 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg/Sec: Add FindFfsSectionInstanceJordan Justen2014-01-211-3/+43
| | | | | | | | | | | | | | | | | This allow you to search for an 'instance' of a section within a series of FFS sections. For example, we will split the MAINFV into a PEI and DXE FV, and then compress those two FV's together within a FFS FV file. The DXE FV will appear as the second section of the file, and therefore we will search for it using an Instance=1 value. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15150 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg/Sec: Remove EFIAPI from functions that don't require itJordan Justen2014-01-211-6/+0
| | | | | | | | | | | | These are all internal functions that don't interface with assembly code or other drivers. Therefore EFIAPI is not required. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15149 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg/Sec: Cleanup debug messagesJordan Justen2014-01-211-8/+9
| | | | | | | | | | | | Remove some not-so-useful messages (during FV scanning). Convert ERROR to INFO and vise versa where appropriate. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15148 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg: Move SEC/PEI Temporary RAM from 0x70000 to 0x810000Jordan Justen2014-01-211-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | Note: The Temporary RAM memory size is being reduced from 64KB to 32KB. This still appears to be more than adequate for OVMF's early PEI phase. We will be adding another 32KB range of RAM just above this range for use on S3 resume. The range is declared as part of MEMFD, so it is easier to identify the memory range. We also now assign PCDs to the memory range. The PCDs are used to set the initial SEC/PEI stack in SEC's assembly code. The PCDs are also used in the SEC C code to setup the Temporary RAM PPI. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15147 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg X64 ResetVector: Move page tables from 512KB to 8MBJordan Justen2014-01-211-0/+8
| | | | | | | | | | | | | | | | | | To help consolidate OVMF fixed memory uses, we declare this range in MEMFD and thereby move it to 8MB. We also now declare the table range in the FDF to set PCDs. This allows us to ASSERT that CR3 is set as expected in OVMF SEC. OvmfPkgIa32.fdf and OvmfPkgIa32X64.fdf are updated simply for consistency. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15146 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg/Sec/SecMain.c: Convert to CRLF (dos) textJordan Justen2014-01-211-765/+765
| | | | | | | | Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15145 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg/Sec: Stop building identity mapped pages in SECJordan Justen2013-09-241-142/+2
| | | | | | | | | | | | | | Now for X64 we use a VTF0 ResetVector which puts the page tables in RAM. Therefore SEC no longer needs to do this. This reverts commit r14494. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Tested-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14719 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg/Sec: Build identity mapped pages in RAM for X64Jordan Justen2013-07-181-2/+142
| | | | | | | | | | | | | | | | | | | | | This is based on MdeModulePkg/Core/DxeIplPeim/X64/VirtualMemory.c. Previously we would run using page tables built into the firmware device. If a flash memory is available, it is unsafe for the page tables to be stored in memory since the processor may try to write to the page table data structures. Additionally, when KVM ROM support is enabled for the firmware device, then PEI fails to boot when the page tables are in the firmware device. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14494 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg: Remove variables that are set, but not usedjljusten2011-10-311-2/+0
| | | | | | | | | GCC 4.6 generates a warning when a variable is set, but never used. Signed-off-by: jljusten git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12615 6f19259b-4bc3-4df7-8a09-765794883524
* Changed TEMPORARY_RAM_SUPPORT_PPI to EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI.vanjeff2011-03-141-2/+2
| | | | git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11385 6f19259b-4bc3-4df7-8a09-765794883524
* Clean up SEC implementation for Ovmf.mdkinney2010-08-031-78/+656
| | | | git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10770 6f19259b-4bc3-4df7-8a09-765794883524
* Update the copyright notice formathhtian2010-04-281-2/+2
| | | | git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10439 6f19259b-4bc3-4df7-8a09-765794883524
* OVMF SEC: Fix VS2005 compiler warningsjljusten2010-01-061-1/+1
| | | | | | | | * FindPeiCore.c => FindFfsFileAndSection: remove unreachable code * SecMain.c => SecCoreStartupWithStack: confirm 64-bit to 32-bit conversion with IA32 builds. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9679 6f19259b-4bc3-4df7-8a09-765794883524
* OVMF: Update OVMF FD/FV build to minimize ROM sizejljusten2010-01-041-11/+14
| | | | | | | | | * Only SEC is uncompressed now * The MAIN FV with PEI & DXE can easily shrink and grow as needed * The final output will now be OVMF.Fv rather than OVMF.fd * The final output size will be a multiple of 64kb git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9672 6f19259b-4bc3-4df7-8a09-765794883524
* OVMF SEC: Modify to match new interface of reset vector modulejljusten2009-12-161-22/+30
| | | | | | | | | | | | | | | | Previously the interface to the SEC module was: ESI/RSI - SEC Core entry point EDI/RDI - PEI Core entry point EBP/RBP - Start of BFV Now it is: RAX/EAX Initial value of the EAX register (BIST: Built-in Self Test) DI 'BP': boot-strap processor, or 'AP': application processor RBP/EBP Address of Boot Firmware Volume (BFV) git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9572 6f19259b-4bc3-4df7-8a09-765794883524
* Use InitializeFloatingPointUnits() from UefiCpuLib to initialize floating ↵qhuang82009-11-251-0/+7
| | | | | | point units in SEC phase. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9481 6f19259b-4bc3-4df7-8a09-765794883524
* Add initial version of Open Virtual Machine Firmware (OVMF) platform.jljusten2009-05-271-0/+171
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8398 6f19259b-4bc3-4df7-8a09-765794883524
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-03 04:24:00 +0000