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| author | Keir Fraser <keir.fraser@citrix.com> | 2008-10-27 10:08:48 +0000 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2008-10-27 10:08:48 +0000 |
| commit | 2f819e06d1f32cecd5179acc9fd037e2e3102d1b (patch) | |
| tree | 6f2a26fcb778ff64fd162bdb024e0dbde6a28e01 /xen/include/asm-x86/x86_64 | |
| parent | 59e17b596f9329a7d17220432b419ff5050adb50 (diff) | |
| download | xen-2f819e06d1f32cecd5179acc9fd037e2e3102d1b.tar.gz xen-2f819e06d1f32cecd5179acc9fd037e2e3102d1b.tar.bz2 xen-2f819e06d1f32cecd5179acc9fd037e2e3102d1b.zip | |
x86: relax restrictions on reserved bits in L3 for 32on64 x86 guests
A 32on64 guest cannot copy an existing pinned L3 entry to use as a new
L3 because COMPAT_L3_DISALLOW_MASK contains bits which are added to L3
entries by adjust_guest_l3e (U/S & R/W) or by the hardware (A & D).
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Diffstat (limited to 'xen/include/asm-x86/x86_64')
| -rw-r--r-- | xen/include/asm-x86/x86_64/page.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/xen/include/asm-x86/x86_64/page.h b/xen/include/asm-x86/x86_64/page.h index f20f053dd5..494a877caf 100644 --- a/xen/include/asm-x86/x86_64/page.h +++ b/xen/include/asm-x86/x86_64/page.h @@ -119,7 +119,7 @@ typedef l4_pgentry_t root_pgentry_t; #define L3_DISALLOW_MASK (BASE_DISALLOW_MASK) #define L4_DISALLOW_MASK (BASE_DISALLOW_MASK) -#define COMPAT_L3_DISALLOW_MASK 0xFFFFF1FEU +#define COMPAT_L3_DISALLOW_MASK 0xFFFFF198U #define PAGE_HYPERVISOR (__PAGE_HYPERVISOR | _PAGE_GLOBAL) #define PAGE_HYPERVISOR_NOCACHE (__PAGE_HYPERVISOR_NOCACHE | _PAGE_GLOBAL) |