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| author | Corvin Köhne <corvink@freebsd.org> | 2023-06-06 11:21:37 +0200 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2023-06-06 10:55:41 +0000 |
| commit | f211292711e53501c713fc38658522b695fb53de (patch) | |
| tree | 48a776b9119bf392358c19cfdc063a6a8dc3057d /OvmfPkg/Include | |
| parent | c1dd400a13d1a5e862809c55f6760ba3a944a609 (diff) | |
| download | edk2-f211292711e53501c713fc38658522b695fb53de.tar.gz edk2-f211292711e53501c713fc38658522b695fb53de.tar.bz2 edk2-f211292711e53501c713fc38658522b695fb53de.zip | |
OvmfPkg/Xen: export search of RSDP into a library function
Xen and bhyve are placing ACPI tables into system memory. So, they can
share the same code. Therefore, create a new library which searches and
installs ACPI tables from system memory.
Signed-off-by: Corvin Köhne <corvink@FreeBSD.org>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'OvmfPkg/Include')
| -rw-r--r-- | OvmfPkg/Include/Library/AcpiPlatformLib.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/OvmfPkg/Include/Library/AcpiPlatformLib.h b/OvmfPkg/Include/Library/AcpiPlatformLib.h new file mode 100644 index 0000000000..b0a3c5bd00 --- /dev/null +++ b/OvmfPkg/Include/Library/AcpiPlatformLib.h @@ -0,0 +1,24 @@ +/** @file
+ Copyright (c) 2023, Corvin Köhne <corvink@FreeBSD.org>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+/**
+ Searches and returns the address of the ACPI Root System Description Pointer (RSDP) in system memory.
+
+ @param StartAddress Start address of search range.
+ @param EndAddress End address of search range.
+ @param RsdpPtr Return pointer to RSDP.
+
+ @retval EFI_SUCCESS RSDP successfully found.
+ @retval EFI_NOT_FOUND Couldn't find RSDP.
+ @retval EFI_ABORTED Invalid RSDP found.
+**/
+EFI_STATUS
+EFIAPI
+GetAcpiRsdpFromMemory (
+ IN UINT64 StartAddress,
+ IN UINT64 EndAddress,
+ OUT EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER **RsdpPtr
+ );
|