diff options
Diffstat (limited to 'i386/i386/ldt.c')
| -rw-r--r-- | i386/i386/ldt.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/i386/i386/ldt.c b/i386/i386/ldt.c index 7299377..0ef7a8c 100644 --- a/i386/i386/ldt.c +++ b/i386/i386/ldt.c @@ -28,6 +28,9 @@ * same LDT. */ #include <mach/machine/vm_types.h> +#include <mach/xen.h> + +#include <intel/pmap.h> #include "vm_param.h" #include "seg.h" @@ -36,15 +39,23 @@ extern int syscall(); +#ifdef MACH_XEN +/* It is actually defined in xen_boothdr.S */ +extern +#endif /* MACH_XEN */ struct real_descriptor ldt[LDTSZ]; void ldt_init() { +#ifdef MACH_XEN + pmap_set_page_readwrite(ldt); +#else /* MACH_XEN */ /* Initialize the master LDT descriptor in the GDT. */ fill_gdt_descriptor(KERNEL_LDT, kvtolin(&ldt), sizeof(ldt)-1, ACC_PL_K|ACC_LDT, 0); +#endif /* MACH_XEN */ /* Initialize the LDT descriptors. */ fill_ldt_gate(USER_SCALL, @@ -61,5 +72,9 @@ ldt_init() ACC_PL_U|ACC_DATA_W, SZ_32); /* Activate the LDT. */ +#ifdef MACH_HYP + hyp_set_ldt(&ldt, LDTSZ); +#else /* MACH_HYP */ lldt(KERNEL_LDT); +#endif /* MACH_HYP */ } |