linux-kernel - [PATCH v3 3/5] x86: Call efi_memblock_x86_reserve

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Message-Id: <1395781076-12000-4-git-send-email-daniel.kiper@oracle.com>
Date:	Tue, 25 Mar 2014 21:57:54 +0100
From:	Daniel Kiper <daniel.kiper@...cle.com>
To:	linux-efi@...r.kernel.org, linux-ia64@...r.kernel.org,
	linux-kernel@...r.kernel.org, x86@...nel.org,
	xen-devel@...ts.xenproject.org
Cc:	boris.ostrovsky@...cle.com, david.vrabel@...rix.com,
	eshelton@...ox.com, fenghua.yu@...el.com, hpa@...or.com,
	ian.campbell@...rix.com, jbeulich@...e.com, jeremy@...p.org,
	konrad.wilk@...cle.com, matt.fleming@...el.com, mingo@...hat.com,
	stefano.stabellini@...citrix.com, tglx@...utronix.de,
	tony.luck@...el.com, Daniel Kiper <daniel.kiper@...cle.com>
Subject: [PATCH v3 3/5] x86: Call efi_memblock_x86_reserve_range() on native EFI platform only

Call efi_memblock_x86_reserve_range() on native EFI platform only.
This is not needed and even it should not be called on platforms
which wraps EFI infrastructure like Xen.

Signed-off-by: Daniel Kiper <daniel.kiper@...cle.com>
---
 arch/x86/kernel/setup.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index ce72964..992b67a 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -933,7 +933,7 @@ void __init setup_arch(char **cmdline_p)
 		set_bit(EFI_64BIT, &x86_efi_facility);
 	}
 
-	if (efi_enabled(EFI_BOOT))
+	if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature, "EL", 2))
 		efi_memblock_x86_reserve_range();
 #endif
 
-- 
1.7.10.4

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