linux-kernel - [PATCH 4/9] efi.h: Add allocation types for boottime->allocate

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Message-Id: <1313060386-4858-5-git-send-email-matt@console-pimps.org>
Date:	Thu, 11 Aug 2011 11:59:41 +0100
From:	Matt Fleming <matt@...sole-pimps.org>
To:	linux-kernel@...r.kernel.org
Cc:	Matthew Garrett <mjg@...hat.com>,
	"H. Peter Anvin" <hpa@...ux.intel.com>
Subject: [PATCH 4/9] efi.h: Add allocation types for boottime->allocate_pages()

From: Matt Fleming <matt.fleming@...ux.intel.com>

Add the allocation types detailed in section 6.2 - "AllocatePages()"
of the UEFI 2.3 specification. These definitions will be used by the
x86 EFI boot stub which needs to allocate memory during boot.

Cc: Matthew Garrett <mjg@...hat.com>
Cc: "H. Peter Anvin" <hpa@...ux.intel.com>
Signed-off-by: Matt Fleming <matt.fleming@...ux.intel.com>
---
 include/linux/efi.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/include/linux/efi.h b/include/linux/efi.h
index d10a639..cd28c7a 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -109,6 +109,14 @@ typedef struct {
 	u32 imagesize;
 } efi_capsule_header_t;
 
+/*
+ * Allocation types for calls to boottime->allocate_pages.
+ */
+#define EFI_ALLOCATE_ANY_PAGES		0
+#define EFI_ALLOCATE_MAX_ADDRESS	1
+#define EFI_ALLOCATE_ADDRESS		2
+#define EFI_MAX_ALLOCATE_TYPE		3
+
 typedef int (*efi_freemem_callback_t) (u64 start, u64 end, void *arg);
 
 /*
-- 
1.7.4.4

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