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| author | Keir Fraser <keir.fraser@citrix.com> | 2008-11-04 11:46:00 +0000 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2008-11-04 11:46:00 +0000 |
| commit | 8ebbe767aa281355990b834b06d9b287e19e01c3 (patch) | |
| tree | ea5bd1a1d5899dea0db32f25e89e4cf7bbaac22d /xen/common/kernel.c | |
| parent | 4cd8a74f6e9e92a813bedba469975cf4b54892e0 (diff) | |
| download | xen-8ebbe767aa281355990b834b06d9b287e19e01c3.tar.gz xen-8ebbe767aa281355990b834b06d9b287e19e01c3.tar.bz2 xen-8ebbe767aa281355990b834b06d9b287e19e01c3.zip | |
x86: allow grant table originating ptes to have their guest available
bits set.
In order to allow 2.6.27's get_user_pages_fast() to correctly detect
granted pages (so they would be passed to get_user_pages()), it must
be possible to tell the grant table code in Xen to set the three
available bits in the pte-s it creates.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Diffstat (limited to 'xen/common/kernel.c')
| -rw-r--r-- | xen/common/kernel.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/xen/common/kernel.c b/xen/common/kernel.c index f3af91f2ed..9137671817 100644 --- a/xen/common/kernel.c +++ b/xen/common/kernel.c @@ -222,7 +222,8 @@ DO(xen_version)(int cmd, XEN_GUEST_HANDLE(void) arg) #ifdef CONFIG_X86 if ( !is_hvm_vcpu(current) ) fi.submap |= (1U << XENFEAT_mmu_pt_update_preserve_ad) | - (1U << XENFEAT_highmem_assist); + (1U << XENFEAT_highmem_assist) | + (1U << XENFEAT_gnttab_map_avail_bits); #endif break; default: |