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Push kernel/user limit to 2GiB, so Mach can address up to close to 2GiB memory.
This makes glibc's local-bigmem.diff patch mandatory.
Index: gnumach/i386/include/mach/i386/vm_param.h
===================================================================
--- gnumach.orig/i386/include/mach/i386/vm_param.h 2012-06-10 23:45:02.000000000 +0200
+++ gnumach/i386/include/mach/i386/vm_param.h 2012-07-14 15:57:26.423861314 +0200
@@ -73,6 +73,6 @@
with that.
*/
#define VM_MIN_ADDRESS (0)
-#define VM_MAX_ADDRESS (0xc0000000UL)
+#define VM_MAX_ADDRESS (0x80000000UL)
#endif /* _MACH_I386_VM_PARAM_H_ */
Index: gnumach/i386/Makefrag.am
===================================================================
--- gnumach.orig/i386/Makefrag.am 2012-06-10 23:45:02.000000000 +0200
+++ gnumach/i386/Makefrag.am 2012-07-14 15:57:26.427861233 +0200
@@ -199,7 +199,7 @@ EXTRA_DIST += \
i386/ldscript
if PLATFORM_at
gnumach_LINKFLAGS += \
- --defsym _START=0xC0100000 \
+ --defsym _START=0x80100000 \
--defsym _START_MAP=0x100000 \
-T '$(srcdir)'/i386/ldscript
endif
Index: gnumach/i386/i386/vm_param.h
===================================================================
--- gnumach.orig/i386/i386/vm_param.h 2012-06-10 23:45:02.000000000 +0200
+++ gnumach/i386/i386/vm_param.h 2012-07-14 15:57:44.559495669 +0200
@@ -31,13 +31,13 @@
/* The kernel address space is usually 1GB, usually starting at virtual address 0. */
#ifdef MACH_XEN
-#define VM_MIN_KERNEL_ADDRESS 0xC0000000UL
+#define VM_MIN_KERNEL_ADDRESS 0x80000000UL
#define INIT_VM_MIN_KERNEL_ADDRESS VM_MIN_KERNEL_ADDRESS
#else /* MACH_XEN */
/* This can be changed freely to separate kernel addresses from user addresses
* for better trace support in kdb; the _START symbol has to be offset by the
* same amount. */
-#define VM_MIN_KERNEL_ADDRESS 0xC0000000UL
+#define VM_MIN_KERNEL_ADDRESS 0x80000000UL
/* This must remain 0 */
#define INIT_VM_MIN_KERNEL_ADDRESS 0x00000000UL
#endif /* MACH_XEN */
Index: gnumach/i386/xen/Makefrag.am
===================================================================
--- gnumach.orig/i386/xen/Makefrag.am 2012-07-14 15:58:19.998781083 +0200
+++ gnumach/i386/xen/Makefrag.am 2012-07-14 15:58:30.254574271 +0200
@@ -28,7 +28,7 @@ libkernel_a_SOURCES += \
if PLATFORM_xen
gnumach_LINKFLAGS += \
- --defsym _START=0xC0000000 \
- --defsym _START_MAP=0xC0000000 \
+ --defsym _START=0x80000000 \
+ --defsym _START_MAP=0x80000000 \
-T '$(srcdir)'/i386/ldscript
endif
Index: gnumach/i386/xen/xen_boothdr.S
===================================================================
--- gnumach.orig/i386/xen/xen_boothdr.S 2012-07-14 15:58:13.358914976 +0200
+++ gnumach/i386/xen/xen_boothdr.S 2012-07-14 15:58:39.790381972 +0200
@@ -22,8 +22,8 @@
.ascii "GUEST_OS=GNU Mach"
.ascii ",GUEST_VERSION=1.3"
.ascii ",XEN_VER=xen-3.0"
- .ascii ",VIRT_BASE=0xC0000000"
- .ascii ",ELF_PADDR_OFFSET=0xC0000000"
+ .ascii ",VIRT_BASE=0x80000000"
+ .ascii ",ELF_PADDR_OFFSET=0x80000000"
.ascii ",HYPERCALL_PAGE=0x2"
#if PAE
.ascii ",PAE=yes[extended-cr3]"
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