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authorIan Campbell <Ian.Campbell@citrix.com>2008-10-10 11:27:38 +0100
committerIngo Molnar <mingo@elte.hu>2008-10-10 13:00:15 +0200
commit5dc64a3442b98eaa0e3730c35fcf00cf962a93e7 (patch)
tree4023600dc25e00ca34927cd05232dbbd75e91c6d /net/core
parenteefb47f6a1e855653d275cb90592a3587ea93a09 (diff)
xen: do not reserve 2 pages of padding between hypervisor and fixmap.
When reserving space for the hypervisor the Xen paravirt backend adds an extra two pages (this was carried forward from the 2.6.18-xen tree which had them "for safety"). Depending on various CONFIG options this can cause the boot time fixmaps to span multiple PMDs which is not supported and triggers a WARN in early_ioremap_init(). This was exposed by 2216d199b1430d1c0affb1498a9ebdbd9c0de439 which moved the dmi table parsing earlier. x86: fix CONFIG_X86_RESERVE_LOW_64K=y The bad_bios_dmi_table() quirk never triggered because we do DMI setup too late. Move it a bit earlier. There is no real reason to reserve these two extra pages and the fixmap already incorporates FIX_HOLE which serves the same purpose. None of the other callers of reserve_top_address do this. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'net/core')
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