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authorMatias Zabaljauregui <zabaljauregui@gmail.com>2009-06-12 22:27:07 -0600
committerRusty Russell <rusty@rustcorp.com.au>2009-06-12 22:27:08 +0930
commitacdd0b6292b282c4511897ac2691a47befbf1c6a (patch)
tree1bfcfc32b11d35e99fec5bbf52b19d6ee038f25e /arch/x86/include/asm/lguest.h
parentcefcad1773197523e11e18b669f245e6a8d32058 (diff)
lguest: PAE support
This version requires that host and guest have the same PAE status. NX cap is not offered to the guest, yet. Signed-off-by: Matias Zabaljauregui <zabaljauregui@gmail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'arch/x86/include/asm/lguest.h')
-rw-r--r--arch/x86/include/asm/lguest.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/include/asm/lguest.h b/arch/x86/include/asm/lguest.h
index 1caf57628b9..313389cd50d 100644
--- a/arch/x86/include/asm/lguest.h
+++ b/arch/x86/include/asm/lguest.h
@@ -17,8 +17,13 @@
/* Pages for switcher itself, then two pages per cpu */
#define TOTAL_SWITCHER_PAGES (SHARED_SWITCHER_PAGES + 2 * nr_cpu_ids)
-/* We map at -4M for ease of mapping into the guest (one PTE page). */
+/* We map at -4M (-2M when PAE is activated) for ease of mapping
+ * into the guest (one PTE page). */
+#ifdef CONFIG_X86_PAE
+#define SWITCHER_ADDR 0xFFE00000
+#else
#define SWITCHER_ADDR 0xFFC00000
+#endif
/* Found in switcher.S */
extern unsigned long default_idt_entries[];