From: Jeremy Fitzhardinge <jeremy@goop.org>
To: the arch/x86 maintainers <x86@kernel.org>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [PATCH 3/3] xen: set max_pfn_mapped
Date: Mon, 16 Jun 2008 14:54:51 -0700 [thread overview]
Message-ID: <4856E12B.6040500@goop.org> (raw)
We need to set max_pfn_mapped, so do so. Xen guarantees that at least 512k is
mapped beyond the end of the kernel image, so we can rely on that being present.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
---
arch/x86/xen/enlighten.c | 1 +
1 file changed, 1 insertion(+)
===================================================================
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1266,6 +1266,7 @@
init_pg_tables_start = __pa(pgd);
init_pg_tables_end = __pa(pgd) + xen_start_info->nr_pt_frames*PAGE_SIZE;
+ max_pfn_mapped = (init_pg_tables_end + 512*1024) >> PAGE_SHIFT;
init_mm.pgd = pgd; /* use the Xen pagetables to start */
next reply other threads:[~2008-06-16 21:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-16 21:54 Jeremy Fitzhardinge [this message]
2008-06-20 12:51 ` [PATCH 3/3] xen: set max_pfn_mapped Ingo Molnar
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