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...existing memory, I changed new_pt_frame in arch/x86/mm.c in the following way: The pt_pfn is mapped R/W, then it is zeroed by a memset(). After that it is mapped with the correct protection flags and pinned. The problem is that the first mapping fails: Mapping memory range 0xc0400000 - 0xc1000000 MINI_OS(file=mm.c, line=68) Allocating new L1 pt frame for pt_pfn=36, mfn=ca8, prev_l_mfn=cad, offset=301 (XEN) .../xen-3.0.4-testing.hg/xen/include/asm/mm.h:184:d1 Error pfn 0: rd=ffbe8100, od=ffbf4100, caf=80000002, taf=e8000002 (XEN) mm.c:456:d1 Could not get page ref for pfn 0 (XEN) mm.c:2225:d1 Could...

...debug=y include $(XEN_ROOT)/Config.mk - -override CONFIG_QEMU=ioemu IOEMU_OPTIONS=--disable-sdl --disable-opengl --disable-vnc-tls --disable-brlapi --disable-kqemu ZLIB_URL?=http://www.zlib.net @@ -59,8 +57,8 @@ TARGET_CPPFLAGS += -isystem $(CURDIR)/$( TARGET_CPPFLAGS += -isystem $(CURDIR)/$(MINI_OS)/include/posix TARGET_CPPFLAGS += -isystem $(CROSS_PREFIX)/$(GNU_TARGET_ARCH)-xen-elf/include TARGET_CPPFLAGS += -isystem $(GCC_INSTALL)include -TARGET_CPPFLAGS += -isystem $(CURDIR)/lwip/src/include -TARGET_CPPFLAGS += -isystem $(CURDIR)/lwip/src/include/ipv4 +TARGET_CPPFLAGS += -isystem $(CURDI...

...here: $XEN_SRC/stubdom/Makefile: # Do not use host headers and libs GCC_INSTALL = $(shell gcc -print-search-dirs | sed -n -e ''s/install: \(.*\)/\1/p'') TARGET_CPPFLAGS += -U __linux__ -U __FreeBSD__ -U __sun__ TARGET_CPPFLAGS += -nostdinc TARGET_CPPFLAGS += -isystem $(CURDIR)/$(MINI_OS)/include/posix TARGET_CPPFLAGS += -isystem $(CROSS_PREFIX)/$(GNU_TARGET_ARCH)-xen-elf/include TARGET_CPPFLAGS += -isystem $(GCC_INSTALL)include TARGET_CPPFLAGS += -isystem $(CURDIR)/lwip/src/include TARGET_CPPFLAGS += -isystem $(CURDIR)/lwip/src/include/ipv4 TARGET_CPPFLAGS += -I$(CURDIR)/include...

Changes from v3: - mini-os configuration files moved into stubdom/ - mini-os extra console support now a config option - Fewer #ifdefs - grant table setup uses hypercall bounce - Xenstore stub domain syslog support re-enabled Changes from v2: - configuration support added to mini-os build system - add mini-os support for conditionally compiling frontends, xenbus -