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| author | Keir Fraser <keir.fraser@citrix.com> | 2009-07-06 11:55:17 +0100 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2009-07-06 11:55:17 +0100 |
| commit | 583731dce8006ab42a54e8d0d8015d52c2f20e66 (patch) | |
| tree | bd5059eb291447d9d6d7fb09ab00617c9c1b4573 /xen/include/asm-x86/x86_64 | |
| parent | 8259ef78d3bf79d24a2a0280fbc0cddd03754ddb (diff) | |
| download | xen-583731dce8006ab42a54e8d0d8015d52c2f20e66.tar.gz xen-583731dce8006ab42a54e8d0d8015d52c2f20e66.tar.bz2 xen-583731dce8006ab42a54e8d0d8015d52c2f20e66.zip | |
32on64: increase size of compat argument translation area to 2 pages.
The existing single page is not quite large enough to translate a
XENMEM_exchange hypercall with order=3D9. Since Linux uses
MAX_CONTIG_ORDER of 9 this seems like a reasonable upper bound to
support.
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/uaccess.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/xen/include/asm-x86/x86_64/uaccess.h b/xen/include/asm-x86/x86_64/uaccess.h index f76be30d3e..40f5e4210d 100644 --- a/xen/include/asm-x86/x86_64/uaccess.h +++ b/xen/include/asm-x86/x86_64/uaccess.h @@ -2,7 +2,7 @@ #define __X86_64_UACCESS_H #define COMPAT_ARG_XLAT_VIRT_BASE this_cpu(compat_arg_xlat) -#define COMPAT_ARG_XLAT_SIZE PAGE_SIZE +#define COMPAT_ARG_XLAT_SIZE (2*PAGE_SIZE) DECLARE_PER_CPU(void *, compat_arg_xlat); int setup_compat_arg_xlat(unsigned int cpu, int node); #define is_compat_arg_xlat_range(addr, size) ({ \ |