linux-kernel - [RFC v2 1/2] efi: Early use of boot service memory

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Message-Id: <1385067686-73500-2-git-send-email-jerry.hoemann@hp.com>
Date:	Thu, 21 Nov 2013 14:01:25 -0700
From:	Jerry Hoemann <jerry.hoemann@...com>
To:	rob@...dley.net, tglx@...utronix.de, mingo@...hat.com,
	hpa@...or.com, x86@...nel.org, matt.fleming@...el.com,
	yinghai@...nel.org, akpm@...ux-foundation.org, bp@...e.de,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-efi@...r.kernel.org
Cc:	penberg@...nel.org, mingo.kernel.org@...il.com, vgoyal@...hat.com,
	jerry.hoemann@...com
Subject: [RFC v2 1/2] efi: Early use of boot service memory

Add #define to allow for specifying that firmware doesn't reuse
boot service code or data after Exit Boot Service.

Signed-off-by: Jerry Hoemann <jerry.hoemann@...com>
---
 include/linux/efi.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/efi.h b/include/linux/efi.h
index 5f8f176..af085cf 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -568,6 +568,7 @@ efi_guid_unparse(efi_guid_t *guid, char *out)
 }
 
 extern void efi_init (void);
+extern void efi_quirks(void);
 extern void *efi_get_pal_addr (void);
 extern void efi_map_pal_code (void);
 extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg);
@@ -634,6 +635,7 @@ extern int __init efi_setup_pcdp_console(char *);
 #define EFI_RUNTIME_SERVICES	3	/* Can we use runtime services? */
 #define EFI_MEMMAP		4	/* Can we use EFI memory map? */
 #define EFI_64BIT		5	/* Is the firmware 64-bit? */
+#define EFI_QUIRK_RESERVE_BSCD	6	/* Reserve Boot Service Data/Code */
 
 #ifdef CONFIG_EFI
 # ifdef CONFIG_X86
-- 
1.7.11.3

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