[Xen-devel] [PATCH 4/9] x86/init: make ebda depend on PC subarch

["Luis R. Rodriguez" <mcgrof@xxxxxxxxxx>]

This lets us remove its use of paravirt_enabled(). The
other subarchs are not needed here given that on 32-bit
there is a switch already that negates access to this
code on X86_SUBARCH_INTEL_MID, and X86_SUBARCH_CE4100.
Both lguest and Xen had paravirt_enabled so that
excludes them.

Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxxxx>
---
 arch/x86/kernel/head.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/head.c b/arch/x86/kernel/head.c
index 992f442ca155..4e3be58a1a77 100644
--- a/arch/x86/kernel/head.c
+++ b/arch/x86/kernel/head.c
@@ -38,7 +38,7 @@ void __init reserve_ebda_region(void)
         * that the paravirt case can handle memory setup
         * correctly, without our help.
         */
-       if (paravirt_enabled())
+       if (boot_params.hdr.hardware_subarch != X86_SUBARCH_PC)
                return;
 
        /* end of low (conventional) memory */
-- 
2.7.0


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