From fb008dbe01f9d30bba4ff84f1825722644da40be Mon Sep 17 00:00:00 2001
From: Min M Xu <min.m.xu@intel.com>
Date: Wed, 22 Jun 2022 09:00:23 +0800
Subject: EmbeddedPkg: Add AllocateRuntimePages in PrePiMemoryAllocationLib

AllocateRuntimePages is used to allocate one or more 4KB pages of
type EfiRuntimeServicesData.

Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Abner Chang <abner.chang@hpe.com>
Cc: Daniel Schaefer <daniel.schaefer@hpe.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ard Biesheuvel <ardb+tianocore@kernel.org>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
---
 EmbeddedPkg/Include/Library/PrePiLib.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'EmbeddedPkg/Include')

diff --git a/EmbeddedPkg/Include/Library/PrePiLib.h b/EmbeddedPkg/Include/Library/PrePiLib.h
index 7b2cea2..3741b08 100644
--- a/EmbeddedPkg/Include/Library/PrePiLib.h
+++ b/EmbeddedPkg/Include/Library/PrePiLib.h
@@ -666,6 +666,25 @@ AllocatePages (
   );
 
 /**
+  Allocates one or more 4KB pages of type EfiRuntimeServicesData.
+
+  Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns a pointer to the
+  allocated buffer.  The buffer returned is aligned on a 4KB boundary.  If Pages is 0, then NULL
+  is returned.  If there is not enough memory remaining to satisfy the request, then NULL is
+  returned.
+
+  @param  Pages                 The number of 4 KB pages to allocate.
+
+  @return A pointer to the allocated buffer or NULL if allocation fails.
+
+**/
+VOID *
+EFIAPI
+AllocateRuntimePages (
+  IN UINTN  Pages
+  );
+
+/**
   Allocates a buffer of type EfiBootServicesData.
 
   Allocates the number bytes specified by AllocationSize of type EfiBootServicesData and returns a
-- 
cgit v1.1