From: Avi Kivity <avi@qumranet.com>
Date: Sun, 30 Dec 2007 10:29:05 +0000 (+0200)
Subject: KVM: MMU: Avoid calling gfn_to_page() in mmu_set_spte()
X-Git-Tag: v2.6.25-rc1~1138^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d7824fff896a1698a07a8046dc362f4500c302f7;p=pandora-kernel.git

KVM: MMU: Avoid calling gfn_to_page() in mmu_set_spte()

Since gfn_to_page() is a sleeping function, and we want to make the core mmu
spinlocked, we need to pass the page from the walker context (which can sleep)
to the shadow context (which cannot).

[marcelo: avoid recursive locking of mmap_sem]

Signed-off-by: Avi Kivity <avi@qumranet.com>
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