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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-04-02 10:54:12 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-24 23:57:33 +0200 |
| commit | af7ae3b9c4a4c1337903f31131d58e3c0d2b6d55 (patch) | |
| tree | 671e5800167551047b9b9dfcdadd77046c4ee2d1 /arch/x86 | |
| parent | b77797fb2bf31bf076e6b69736119bc6a077525b (diff) | |
| download | linux-stable-af7ae3b9c4a4c1337903f31131d58e3c0d2b6d55.tar.gz linux-stable-af7ae3b9c4a4c1337903f31131d58e3c0d2b6d55.tar.bz2 linux-stable-af7ae3b9c4a4c1337903f31131d58e3c0d2b6d55.zip | |
xen: allow compilation with non-flat memory
There's no real reason we can't support sparsemem/discontigmem, so do so.
This is mostly useful to support hotplug memory.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/xen/Kconfig | 2 | ||||
| -rw-r--r-- | arch/x86/xen/enlighten.c | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig index 4d5f2649bee4..2e641be2737e 100644 --- a/arch/x86/xen/Kconfig +++ b/arch/x86/xen/Kconfig @@ -6,7 +6,7 @@ config XEN bool "Xen guest support" select PARAVIRT depends on X86_32 - depends on X86_CMPXCHG && X86_TSC && !NEED_MULTIPLE_NODES && !(X86_VISWS || X86_VOYAGER) + depends on X86_CMPXCHG && X86_TSC && !(X86_VISWS || X86_VOYAGER) help This is the Linux Xen port. Enabling this will allow the kernel to boot in a paravirtualized environment under the diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index bc129146f99f..c8a56e457d61 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -669,7 +669,9 @@ static void xen_write_cr3(unsigned long cr3) everything is pinned. */ static __init void xen_alloc_pte_init(struct mm_struct *mm, u32 pfn) { +#ifdef CONFIG_FLATMEM BUG_ON(mem_map); /* should only be used early */ +#endif make_lowmem_page_readonly(__va(PFN_PHYS(pfn))); } |