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lguest: PAE support

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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>
This commit is contained in:
Matias Zabaljauregui
2009-06-12 22:27:07 -06:00
committed by Rusty Russell
parent cefcad1773
commit acdd0b6292
9 changed files with 402 additions and 47 deletions
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7
arch/x86/include/asm/lguest.h
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@@ -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[];