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| author | Keir Fraser <keir.fraser@citrix.com> | 2008-04-16 10:05:57 +0100 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2008-04-16 10:05:57 +0100 |
| commit | 28baa78877ebda840603774d6a1e3e9da9546a6e (patch) | |
| tree | 7f3e7943f2838769040a19258e95fa79b8c105bf /extras/mini-os/mm.c | |
| parent | f464d312c7b7185b7174434b61d00903949d3a76 (diff) | |
| download | xen-28baa78877ebda840603774d6a1e3e9da9546a6e.tar.gz xen-28baa78877ebda840603774d6a1e3e9da9546a6e.tar.bz2 xen-28baa78877ebda840603774d6a1e3e9da9546a6e.zip | |
stubdom: sparse application's BSS by linking it separately first, put
markers at its beginning and end, and then link with mini-os.
That permits to stick a bit more to upstream qemu.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Diffstat (limited to 'extras/mini-os/mm.c')
| -rw-r--r-- | extras/mini-os/mm.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/extras/mini-os/mm.c b/extras/mini-os/mm.c index f204fa66ec..2cc9e9db6d 100644 --- a/extras/mini-os/mm.c +++ b/extras/mini-os/mm.c @@ -36,6 +36,7 @@ #include <os.h> #include <hypervisor.h> +#include <xen/memory.h> #include <mm.h> #include <types.h> #include <lib.h> @@ -360,6 +361,17 @@ void free_pages(void *pointer, int order) } +int free_physical_pages(xen_pfn_t *mfns, int n) +{ + struct xen_memory_reservation reservation; + + set_xen_guest_handle(reservation.extent_start, mfns); + reservation.nr_extents = n; + reservation.extent_order = 0; + reservation.domid = DOMID_SELF; + return HYPERVISOR_memory_op(XENMEM_decrease_reservation, &reservation); +} + #ifdef HAVE_LIBC void *sbrk(ptrdiff_t increment) { |