bitkeeper revision 1.1159.170.55 (41ab5c23QYvtqtjdNhgpIdW_c5ibrA)

sync w/ head.

.rootkeys

@@ -44,90 +44,90 @@
 3f815145vGYx1WY79voKkZB9yKwJKQ extras/mini-os/time.c
 3f815145xlKBAQmal9oces3G_Mvxqw extras/mini-os/traps.c
 4187ca95_eQN62ugV1zliQcfzXrHnw install.sh
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+3f108af5VxPkLv13tXpXgoRKALQtXQ linux-2.4.28-xen-sparse/mm/mprotect.c
+3e5a4e681xMPdF9xCMwpyfuYMySU5g linux-2.4.28-xen-sparse/mm/mremap.c
+409ba2e7akOFqQUg6Qyg2s28xcXiMg linux-2.4.28-xen-sparse/mm/page_alloc.c
+3e5a4e683HKVU-sxtagrDasRB8eBVw linux-2.4.28-xen-sparse/mm/swapfile.c
+41180721bNns9Na7w1nJ0ZVt8bhUNA linux-2.4.28-xen-sparse/mm/vmalloc.c
+41505c57WAd5l1rlfCLNSCpx9J13vA linux-2.4.28-xen-sparse/net/core/skbuff.c
 40f562372u3A7_kfbYYixPHJJxYUxA linux-2.6.10-rc2-xen-sparse/arch/xen/Kconfig
 40f56237utH41NPukqHksuNf29IC9A linux-2.6.10-rc2-xen-sparse/arch/xen/Kconfig.drivers
 40f56237penAAlWVBVDpeQZNFIg8CA linux-2.6.10-rc2-xen-sparse/arch/xen/Makefile
@@ -251,6 +251,8 @@
 410a94a4KT6I6X0LVc7djB39tRDp4g linux-2.6.10-rc2-xen-sparse/mm/page_alloc.c
 41505c572m-s9ATiO1LiD1GPznTTIg linux-2.6.10-rc2-xen-sparse/net/core/skbuff.c
 4149ec79wMpIHdvbntxqVGLRZZjPxw linux-2.6.10-rc2-xen-sparse/net/ipv4/raw.c
+41ab440bnpxZdWShZrGgM9pPaz5rmA linux-2.6.9-xen-sparse/arch/xen/i386/kernel/cpu/mtrr/Makefile
+41ab440bBKWz-aEOEojU4PAMXe3Ppg linux-2.6.9-xen-sparse/arch/xen/i386/kernel/cpu/mtrr/main.c
 413cb1e4zst25MDYjg63Y-NGC5_pLg netbsd-2.0-xen-sparse/Makefile
 413cb1e5c_Mkxf_X0zimEhTKI_l4DA netbsd-2.0-xen-sparse/mkbuildtree
 413cb1e5kY_Zil7-b0kI6hvCIxBEYg netbsd-2.0-xen-sparse/nbconfig-xen
@@ -335,20 +337,35 @@
 40e1b09dMYB4ItGCqcMIzirdMd9I-w tools/libxutil/Makefile
 40e033325Sjqs-_4TuzeUEprP_gYFg tools/libxutil/allocate.c
 40e03332KYz7o1bn2MG_KPbBlyoIMA tools/libxutil/allocate.h
+41a216cav5JJbtDQnusfuMa_1x_Xpw tools/libxutil/debug.h
+40e9808eyjiahG5uF6AMelNVujBzCg tools/libxutil/enum.c
+40e9808eZpbdn9q2KSSMGCNvY_ZgpQ tools/libxutil/enum.h
 40e03332p5Dc_owJQRuN72ymJZddFQ tools/libxutil/file_stream.c
 40e03332jWfB2viAhLSkq1WK0r_iDQ tools/libxutil/file_stream.h
 40e03332rUjNMGg11n2rN6V4DCrvOg tools/libxutil/gzip_stream.c
 40e033321O5Qg22haLoq5lpmk4tooQ tools/libxutil/gzip_stream.h
+40e9808easXCzzAZQodEfKAhgUXSPA tools/libxutil/hash_table.c
+40e9808e94BNXIVVKBFHC3rnkvwtJg tools/libxutil/hash_table.h
 40e03332ihnBGzHykVwZnFmkAppb4g tools/libxutil/iostream.c
 40e03332UGwbLR4wsw4ft14p0Yw5pg tools/libxutil/iostream.h
 40e0333245DLDzJemeSVBLuutHtzEQ tools/libxutil/kernel_stream.c
 40e03332aK0GkgpDdc-PVTkWKTeOBg tools/libxutil/kernel_stream.h
+40e9808epW9iHcLXuO3QfUfLzB7onw tools/libxutil/lexis.c
+40e9808egccMhCizayQRGtpBA3L5MQ tools/libxutil/lexis.h
+41a216caM4z39Fzjb91rv9Ed_4By1A tools/libxutil/socket_stream.c
+41a216caqinvF1I5FQMHA4HTRz8MSA tools/libxutil/socket_stream.h
 40e03332KT_tnnoAMbPVAZBB7kSOAQ tools/libxutil/string_stream.c
 40e03332-VtK6_OZa1vMHXFil8uq6w tools/libxutil/string_stream.h
+40e9808e5_PLdodqVOSx0b4T_f5aeg tools/libxutil/sxpr.c
+40e9808e0O4sHZtkDv5hlSqjYcdQAQ tools/libxutil/sxpr.h
+40ec1cc6SIiGbynOi-1NtPesOlzF-Q tools/libxutil/sxpr_parser.c
+40ec1cc6wpvvGxZiq4EFvNOcw0tUFg tools/libxutil/sxpr_parser.h
 40e03332Rkvq6nn_UNjzAAK_Tk9v1g tools/libxutil/sys_net.c
 40e03332lQHvQHw4Rh7VsT1_sui29A tools/libxutil/sys_net.h
 40e033321smklZd7bDSdWvQCeIshtg tools/libxutil/sys_string.c
 40e03332h5V611rRWURRLqb1Ekatxg tools/libxutil/sys_string.h
+41a216cayFe2FQroFuzvNPw1AvNiqQ tools/libxutil/util.c
+41a216ca7mgVSnCBHPCLkGOIqPS1CQ tools/libxutil/util.h
 3f776bd2Xd-dUcPKlPN2vG89VGtfvQ tools/misc/Makefile
 40ab2cfawIw8tsYo0dQKtp83h4qfTQ tools/misc/fakei386xen
 3f6dc136ZKOjd8PIqLbFBl_v-rnkGg tools/misc/miniterm/Makefile
@@ -527,6 +544,64 @@
 40fcefb3yMSrZvApO9ToIi-iQwnchA tools/sv/images/xen.png
 41013a83z27rKvWIxAfUBMVZ1eDCDg tools/sv/inc/script.js
 40fcefb3zGC9XNBkSwTEobCoq8YClA tools/sv/inc/style.css
+41a21888_WlknVWjSxb32Fo13_ujsw tools/vnet/00README
+41a21888bOiOJc7blzRbe4MNJoaYTw tools/vnet/Makefile
+41a21888mg2k5HeiVjlQYEtJBZT4Qg tools/vnet/doc/vnet-module.txt
+41a21888cuxfT8wjCdRR6V1lqf5NtA tools/vnet/doc/vnet-xend.txt
+41a21888xEQJAIGktS6XQ4xz2TyA5g tools/vnet/examples/Makefile
+41a21888FGQhPR5LJ1GRtOSIIN3QEw tools/vnet/examples/network-vnet
+41a21888QPgKrulCfR9SY_pxZKU0KA tools/vnet/examples/vnet97.sxp
+41a21888Gm0UBs1i7HqveT7Yz0u8DQ tools/vnet/examples/vnet98.sxp
+41a21888r4oGPuGv2Lxl-thgV3H54w tools/vnet/examples/vnet99.sxp
+41a21888c9TCRlUwJS9WBjB3e9aWgg tools/vnet/vnet-module/00README
+41a21888K2ItolEkksc1MUqyTDI_Kg tools/vnet/vnet-module/Makefile
+41a21888mJsFJD7bVMm-nrnWnalGBw tools/vnet/vnet-module/Makefile-2.4
+41a21888Znze3-UCCBZ-Nxpj-bNeHA tools/vnet/vnet-module/Makefile-2.6
+41a21889fwc1judJ7DYvyEviSJ3TPg tools/vnet/vnet-module/Makefile.ver
+41a21889m_sYkdODF3j5uhMP-Guy9Q tools/vnet/vnet-module/Makefile.vnet
+41a21889bXW2lC28U6KS_s5tOJ_W9Q tools/vnet/vnet-module/esp.c
+41a21889L2MfLDsUFQxstt-0frIVmw tools/vnet/vnet-module/esp.h
+41a21889V1jOsB2JExI-XQl720WHwg tools/vnet/vnet-module/etherip.c
+41a21889IpMYbNufHMDXe2ndNw4JxA tools/vnet/vnet-module/etherip.h
+41a21889LT9TNqO2EvTFIUTujrkX9w tools/vnet/vnet-module/if_etherip.h
+41a21889PESythGZFG6kmSoOkkN2Nw tools/vnet/vnet-module/if_varp.h
+41a21889nCPEomHqOyQ4vnhEm4II4g tools/vnet/vnet-module/linux/pfkeyv2.h
+41a21889A_fw4pRmCbBfZdtRunM5Eg tools/vnet/vnet-module/random.c
+41a218899Xy2dPKSu3pkuqaqkfKMTA tools/vnet/vnet-module/random.h
+41a21889rIH5S1dv8ygdSsTGNlg0JA tools/vnet/vnet-module/sa.c
+41a218896Z4vxy6gnV9h0fWRWu0lKQ tools/vnet/vnet-module/sa.h
+41a21889qFD8BTbDpB55uVmSVDEsgw tools/vnet/vnet-module/sa_algorithm.c
+41a21889r2AwTe-OCSSVMxBzz8uDtw tools/vnet/vnet-module/sa_algorithm.h
+41a21889tvjtL7O8tMveVB8MdSKPnQ tools/vnet/vnet-module/skb_context.c
+41a21889lD_QOUz2Msd7fB5rJQzfxA tools/vnet/vnet-module/skb_context.h
+41a21889F1r1xnJamzdeuClR8MNwQg tools/vnet/vnet-module/skb_util.c
+41a21889sS4bjVqEna24sS8NpV7SRA tools/vnet/vnet-module/skb_util.h
+41a21889MDawEK3J_f_oAGnZznhG2w tools/vnet/vnet-module/tunnel.c
+41a218896TlHXpVVqF50uz_u_WMXRw tools/vnet/vnet-module/tunnel.h
+41a21889nQYbJbqrOApg_RbkwPtXGg tools/vnet/vnet-module/varp.c
+41a21889Pev5MJlqqass6CxN4mmvPw tools/vnet/vnet-module/varp.h
+41a21889GbsHHfkpA-PkOvltfEwpMA tools/vnet/vnet-module/varp_socket.c
+41a21889sknn8zd5xCJlpQbs7MvxKg tools/vnet/vnet-module/vif.c
+41a21889VsKKWpe6rcXOSLPy2FuNWQ tools/vnet/vnet-module/vif.h
+41a21889dgkOyuSTVqy7D8TPIzrUyw tools/vnet/vnet-module/vnet.c
+41a21889ocAdwk7V1nNt4iBpmYW-Mw tools/vnet/vnet-module/vnet.h
+41a21889YrTiC0ArJSGFtiaHz2j1qQ tools/vnet/vnet-module/vnet_dev.c
+41a21889rHT4vrC4VAfk7-xP_K5aBg tools/vnet/vnet-module/vnet_dev.h
+41a21889qJj6GjT2f5hMHRvPS1AW4w tools/vnet/vnet-module/vnet_ioctl.c
+41a2188a8W4xYB0LYm512agtoEv52g tools/vnet/vnet-module/vnet_ioctl.h
+41a2188aFF_1T9OgpqUjjjaCqKB8lw tools/vnet/vnetd/Makefile
+41a2188a9j84qS4CxqMLVCvyGpA93w tools/vnet/vnetd/connection.c
+41a2188atexNEami9TNVYNkRSb7Bqg tools/vnet/vnetd/connection.h
+41a2188abgYpITSrWoMGHHrM56nklw tools/vnet/vnetd/marshal.c
+41a2188aUbOi5tAYwOS4aPixo1EGwQ tools/vnet/vnetd/marshal.h
+41a2188aDJlSVB1s_st2MSWxW8kMwg tools/vnet/vnetd/select.c
+41a2188aE9LUDdSSwNT3BWVWCvGSnQ tools/vnet/vnetd/select.h
+41a2188aTbMKv_Eig12dSrBUEBl1Jg tools/vnet/vnetd/timer.c
+41a2188aIzBGqQ6DUVzCxfBsN0Q6Ww tools/vnet/vnetd/timer.h
+41a2188aIf3Xk6uvk7KzjdpOsflAEw tools/vnet/vnetd/vcache.c
+41a2188ar6_vOO3_tEJQjmFVU3409A tools/vnet/vnetd/vcache.h
+41a2188aETrGU60X9WtGhYVfU7z0Pw tools/vnet/vnetd/vnetd.c
+41a2188ahYjemudGyB7078AWMFR-0w tools/vnet/vnetd/vnetd.h
 4194e861IgTabTt8HOuh143QIJFD1Q tools/x2d2/Makefile
 4194e861M2gcBz4i94cQYpqzi8n6UA tools/x2d2/cntrl_con.c
 4194e8612TrrMvC8ZlA4h2ZYCPWz4g tools/x2d2/minixend.c
@@ -543,23 +618,13 @@
 40e9808eysqT4VNDlJFqsZB2rdg4Qw tools/xfrd/connection.c
 40e9808eyXfJUi4E0C3WSgrEXqQ1sQ tools/xfrd/connection.h
 40e9808eULGwffNOE4kBrAfZ9YAVMA tools/xfrd/debug.h
-40e9808eyjiahG5uF6AMelNVujBzCg tools/xfrd/enum.c
-40e9808eZpbdn9q2KSSMGCNvY_ZgpQ tools/xfrd/enum.h
-40e9808easXCzzAZQodEfKAhgUXSPA tools/xfrd/hash_table.c
-40e9808e94BNXIVVKBFHC3rnkvwtJg tools/xfrd/hash_table.h
 411b5139tfKZfWs1LQHmwDR_wjKoxQ tools/xfrd/http.h
-40e9808epW9iHcLXuO3QfUfLzB7onw tools/xfrd/lexis.c
-40e9808egccMhCizayQRGtpBA3L5MQ tools/xfrd/lexis.h
 40e9808ePADCSKL1YgGCt2TbYPnYkw tools/xfrd/lzi_stream.c
 40e9808eDNAdpF71o5teYb9DTT-PRw tools/xfrd/lzi_stream.h
 40e9808eQxi0EzTcPJtosrzxEIjA-Q tools/xfrd/marshal.c
 40e9808etg13xfRm0Lqd8vY-jHOoTg tools/xfrd/marshal.h
 40e9808eCsmywryb036TdtRMJHDMmQ tools/xfrd/select.c
 40e9808e99OcM547cKMTfmCVSoWVAw tools/xfrd/select.h
-40e9808e5_PLdodqVOSx0b4T_f5aeg tools/xfrd/sxpr.c
-40e9808e0O4sHZtkDv5hlSqjYcdQAQ tools/xfrd/sxpr.h
-40ec1cc6SIiGbynOi-1NtPesOlzF-Q tools/xfrd/sxpr_parser.c
-40ec1cc6wpvvGxZiq4EFvNOcw0tUFg tools/xfrd/sxpr_parser.h
 40e9808eF3NVldqRNS5IHM8gbFAvpw tools/xfrd/xdr.c
 40e9808ezXzoRHm7pybXU69NtnjimA tools/xfrd/xdr.h
 40e9808edpUtf4bJ8IbqClPJj_OvbA tools/xfrd/xen_domain.c
@@ -570,6 +635,11 @@
 3f72f1bdJPsV3JCnBqs9ddL9tr6D2g xen/COPYING
 3ddb79bcbOVHh38VJzc97-JEGD4dJQ xen/Makefile
 3ddb79bcWnTwYsQRWl_PaneJfa6p0w xen/Rules.mk
+41a26ebcqaSGVQ8qTMwpPwOJSJ7qSw xen/arch/ia64/privop.c
+41a26ebc4BOHDUsT0TSnryPeV2xfRA xen/arch/ia64/process.c
+41a26ebcJ30TFl1v2kR8rqpEBvOtVw xen/arch/ia64/regionreg.c
+41a26ebc--sjlYZQxmIxyCx3jw70qA xen/arch/ia64/vcpu.c
+41a26ebc4jSBGQOuyNIPDST58mNbBw xen/arch/ia64/xenasm.S
 3ddb79bcZbRBzT3elFWSX7u6NtMagQ xen/arch/x86/Makefile
 3ddb79bcBQF85CfLS4i1WGZ4oLLaCA xen/arch/x86/Rules.mk
 3e5636e5FAYZ5_vQnmgwFJfSdmO5Mw xen/arch/x86/acpi.c
@@ -589,6 +659,13 @@
 3ddb79bdqfIcjkz_h9Hvtp8Tk_19Zw xen/arch/x86/irq.c
 40ec29ffuOa1ZvmJHzFKyZn4k_RcXg xen/arch/x86/memory.c
 3ddb79bdS4UeWWXDH-FaBKqcpMFcnw xen/arch/x86/mpparse.c
+41aaf566Z4sTDgJ77eEg0TzzQ1ka6Q xen/arch/x86/mtrr/amd.c
+41aaf566TOpOBXT00wwQGUh20f1rlA xen/arch/x86/mtrr/centaur.c
+41aaf566yhr0zKYnGVSOQpkWMM0Kiw xen/arch/x86/mtrr/cyrix.c
+41aaf567t3hFKsyfEFoy3KAnB-bj8w xen/arch/x86/mtrr/generic.c
+41aaf567tqrKGSTDK8OVeAbpeoccPw xen/arch/x86/mtrr/main.c
+41aaf567a36esU-rUK7twPiv-yTFyw xen/arch/x86/mtrr/mtrr.h
+41aaf567DcTL6pqVtLZJI5cSryyA1A xen/arch/x86/mtrr/state.c
 3f12cff65EV3qOG2j37Qm0ShgvXGRw xen/arch/x86/nmi.c
 3ddb79bdHe6_Uij4-glW91vInNtBYQ xen/arch/x86/pci-irq.c
 3ddb79bcZ_2FxINljqNSkqa17ISyJw xen/arch/x86/pci-pc.c
@@ -628,6 +705,7 @@
 3e4cd9d8LAAghUY0hNIK72uc2ch_Nw xen/common/keyhandler.c
 3ddb79bduhSEZI8xa7IbGQCpap5y2A xen/common/lib.c
 3ddb79bdS39UXxUtZnaScie83-7VTQ xen/common/memory.c
+41a61536SZbR6cj1ukWTb0DYU-vz9w xen/common/multicall.c
 3ddb79bdD4SLmmdMD7yLW5HcUWucXw xen/common/page_alloc.c
 3e54c38dkHAev597bPr71-hGzTdocg xen/common/perfc.c
 4051bcecFeq4DE70p4zGO5setf47CA xen/common/physdev.c
@@ -723,6 +801,8 @@
 40ec25fd7cSvbP7Biw91zaU_g0xsEQ xen/include/asm-x86/mm.h
 3ddb79c3n_UbPuxlkNxvvLycClIkxA xen/include/asm-x86/mpspec.h
 3ddb79c2wa0dA_LGigxOelSGbJ284Q xen/include/asm-x86/msr.h
+41aaf567Mi3OishhvrCtET1y-mxQBg xen/include/asm-x86/mtrr.h
+41a61536MFhNalgbVmYGXAhQsPTZNw xen/include/asm-x86/multicall.h
 3ddb79c3xjYnrv5t3VqYlR4tNEOl4Q xen/include/asm-x86/page.h
 3ddb79c3ysKUbxZuwKBRK3WXU2TlEg xen/include/asm-x86/pci.h
 404f1bb41Yl-5ZjIWnG66HDCj6OIWA xen/include/asm-x86/pda.h
@@ -784,6 +864,7 @@
 3ddb79c18Ajy7micDGQQfJ0zWgEHtA xen/include/xen/list.h
 3ddb79c1gs2VbLbQlw0dcDUXYIepDA xen/include/xen/mm.h
 3ddb79c1ieLZfGSFwfvvSQ2NK1BMSg xen/include/xen/multiboot.h
+41a61536ii6j2lJ2rXwMOLaG1CHPvw xen/include/xen/multicall.h
 3ddb79c2Fg44_PBPVxHSC0gTOMq4Ow xen/include/xen/pci.h
 3ddb79c0MOVXq8qZDQRGb6z64_xAwg xen/include/xen/pci_ids.h
 3e54c38dlSCVdyVM4PKcrSfzLLxWUQ xen/include/xen/perfc.h

BitKeeper/etc/ignore

@@ -59,6 +59,13 @@ tools/check/.*
 tools/libxc/xen/*
 tools/misc/miniterm/miniterm
 tools/misc/xen_cpuperf
+tools/vnet/gc
+tools/vnet/gc*/*
+tools/vnet/vnet-module/.tmp_versions/*
+tools/vnet/vnet-module/.*.cmd
+tools/vnet/vnet-module/*.ko
+tools/vnet/vnet-module/vnet_module.mod.*
+tools/vnetd/vnetd
 tools/web-shutdown.tap
 tools/xentrace/xentrace
 tools/xfrd/xfrd

Makefile

@@ -7,9 +7,12 @@ INSTALL_DIR ?= $(DIST_DIR)/install
 
 KERNELS ?= linux-2.6-xen0 linux-2.6-xenU
 # linux-2.4-xen0 linux-2.4-xenU netbsd-2.0-xenU
+# You may use wildcards in the above e.g. KERNELS=*2.4*
 
 ALLKERNELS = $(patsubst buildconfigs/mk.%,%,$(wildcard buildconfigs/mk.*))
 ALLSPARSETREES = $(patsubst %-xen-sparse,%,$(wildcard *-xen-sparse))
+XKERNELS := $(foreach kernel, $(KERNELS), $(patsubst buildconfigs/mk.%,%,$(wildcard buildconfigs/mk.$(kernel))) )
+
 
 export INSTALL_DIR
 
@@ -46,7 +49,7 @@ tools:
 	$(MAKE) prefix=$(INSTALL_DIR) dist=yes -C tools install
 
 kernels:
-	for i in $(KERNELS) ; do $(MAKE) $$i-build ; done
+	for i in $(XKERNELS) ; do $(MAKE) $$i-build ; done
 
 docs:
 	sh ./docs/check_pkgs && \
@@ -57,11 +60,11 @@ kbuild: kernels
 
 # Delete the kernel build trees entirely
 kdelete:
-	for i in $(KERNELS) ; do $(MAKE) $$i-delete ; done
+	for i in $(XKERNELS) ; do $(MAKE) $$i-delete ; done
 
 # Clean the kernel build trees
 kclean:
-	for i in $(KERNELS) ; do $(MAKE) $$i-clean ; done
+	for i in $(XKERNELS) ; do $(MAKE) $$i-clean ; done
 
 # Make patches from kernel sparse trees
 mkpatches:

buildconfigs/Rules.mk

@@ -48,6 +48,9 @@ pristine-%: %.tar.bz2
 	mv tmp-$(@F)/* $@
 	touch $@ # update timestamp to avoid rebuild
 	@rm -rf tmp-$(@F)
+	[ -d patches/$* ] && \
+	  for i in patches/$*/*.patch ; do ( cd $@ ; patch -p1 <../$$i ) ; done || \
+	  true
 
 %-build:
 	$(MAKE) -f buildconfigs/mk.$* build

docs/src/user.tex

@@ -707,7 +707,9 @@ culminating in a login prompt.
 Ttylinux is a very small Linux distribution, designed to require very
 few resources.  We will use it as a concrete example of how to start a
 Xen domain.  Most users will probably want to install a full-featured
-distribution once they have mastered the basics.
+distribution once they have mastered the basics\footnote{ttylinux is
+maintained by Pascal Schmidt. You can download source packages from
+the distribution's home page: {\tt http://www.minimalinux.org/ttylinux/}}.
 
 \begin{enumerate}
 \item Download and extract the ttylinux disk image from the Files

linux-2.4.28-xen-sparse/Makefile

@@ -1,6 +1,6 @@
 VERSION = 2
 PATCHLEVEL = 4
-SUBLEVEL = 27
+SUBLEVEL = 28
 EXTRAVERSION =
 
 KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)

linux-2.4.28-xen-sparse/arch/xen/Makefile

@@ -50,6 +50,10 @@ ifdef CONFIG_MK7
 CFLAGS += $(call check_gcc,-march=athlon,-march=i686 -malign-functions=4)
 endif
 
+# Disable unit-at-a-time mode, it makes gcc use a lot more stack
+# due to the lack of sharing of stacklots.
+CFLAGS += $(call check_gcc,-fno-unit-at-a-time,)
+
 HEAD := arch/xen/kernel/head.o arch/xen/kernel/init_task.o
 
 SUBDIRS += arch/xen/kernel arch/xen/mm arch/xen/lib

linux-2.4.28-xen-sparse/arch/xen/config.in

@@ -146,7 +146,7 @@ if [ "$CONFIG_PROC_FS" = "y" ]; then
 	 A.OUT		CONFIG_KCORE_AOUT" ELF
 fi
 tristate 'Kernel support for a.out binaries' CONFIG_BINFMT_AOUT
-tristate 'Kernel support for ELF binaries' CONFIG_BINFMT_ELF
+bool 'Kernel support for ELF binaries' CONFIG_BINFMT_ELF
 tristate 'Kernel support for MISC binaries' CONFIG_BINFMT_MISC
 bool 'Select task to kill on out of memory condition' CONFIG_OOM_KILLER
 

linux-2.4.28-xen-sparse/arch/xen/defconfig-xen0

@@ -1,5 +1,5 @@
 #
-# Automatically generated by make menuconfig: don't edit
+# Automatically generated make config: don't edit
 #
 CONFIG_XEN=y
 CONFIG_X86=y
@@ -220,6 +220,10 @@ CONFIG_IP_NF_TARGET_ULOG=y
 # CONFIG_IP_SCTP is not set
 # CONFIG_ATM is not set
 CONFIG_VLAN_8021Q=y
+
+#
+#  
+#
 # CONFIG_IPX is not set
 # CONFIG_ATALK is not set
 
@@ -276,17 +280,27 @@ CONFIG_IDE=y
 # IDE, ATA and ATAPI Block devices
 #
 CONFIG_BLK_DEV_IDE=y
+
+#
+# Please see Documentation/ide.txt for help/info on IDE drives
+#
 # CONFIG_BLK_DEV_HD_IDE is not set
 # CONFIG_BLK_DEV_HD is not set
+# CONFIG_BLK_DEV_IDE_SATA is not set
 CONFIG_BLK_DEV_IDEDISK=y
 CONFIG_IDEDISK_MULTI_MODE=y
 CONFIG_IDEDISK_STROKE=y
 # CONFIG_BLK_DEV_IDECS is not set
+# CONFIG_BLK_DEV_DELKIN is not set
 CONFIG_BLK_DEV_IDECD=y
 CONFIG_BLK_DEV_IDETAPE=y
 CONFIG_BLK_DEV_IDEFLOPPY=y
 CONFIG_BLK_DEV_IDESCSI=y
 CONFIG_IDE_TASK_IOCTL=y
+
+#
+# IDE chipset support/bugfixes
+#
 CONFIG_BLK_DEV_CMD640=y
 CONFIG_BLK_DEV_CMD640_ENHANCED=y
 # CONFIG_BLK_DEV_ISAPNP is not set
@@ -330,6 +344,10 @@ CONFIG_BLK_DEV_SLC90E66=y
 CONFIG_BLK_DEV_TRM290=y
 CONFIG_BLK_DEV_VIA82CXXX=y
 CONFIG_IDE_CHIPSETS=y
+
+#
+# Note: most of these also require special kernel boot parameters
+#
 # CONFIG_BLK_DEV_4DRIVES is not set
 # CONFIG_BLK_DEV_ALI14XX is not set
 # CONFIG_BLK_DEV_DTC2278 is not set
@@ -351,12 +369,20 @@ CONFIG_BLK_DEV_PDC202XX=y
 # SCSI support
 #
 CONFIG_SCSI=y
+
+#
+# SCSI support type (disk, tape, CD-ROM)
+#
 CONFIG_BLK_DEV_SD=y
 CONFIG_SD_EXTRA_DEVS=40
 # CONFIG_CHR_DEV_ST is not set
 # CONFIG_CHR_DEV_OSST is not set
 # CONFIG_BLK_DEV_SR is not set
 CONFIG_CHR_DEV_SG=y
+
+#
+# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
+#
 # CONFIG_SCSI_DEBUG_QUEUES is not set
 # CONFIG_SCSI_MULTI_LUN is not set
 # CONFIG_SCSI_CONSTANTS is not set
@@ -396,10 +422,13 @@ CONFIG_SCSI_MEGARAID=y
 # CONFIG_SCSI_MEGARAID2 is not set
 CONFIG_SCSI_SATA=y
 # CONFIG_SCSI_SATA_SVW is not set
+CONFIG_SCSI_ATA_PIIX=y
+# CONFIG_SCSI_SATA_NV is not set
 CONFIG_SCSI_SATA_PROMISE=y
 CONFIG_SCSI_SATA_SX4=y
 CONFIG_SCSI_SATA_SIL=y
 CONFIG_SCSI_SATA_SIS=y
+# CONFIG_SCSI_SATA_ULI is not set
 CONFIG_SCSI_SATA_VIA=y
 CONFIG_SCSI_SATA_VITESSE=y
 CONFIG_SCSI_BUSLOGIC=y
@@ -643,6 +672,14 @@ CONFIG_PSMOUSE=y
 # Joysticks
 #
 # CONFIG_INPUT_GAMEPORT is not set
+
+#
+# Input core support is needed for gameports
+#
+
+#
+# Input core support is needed for joysticks
+#
 # CONFIG_QIC02_TAPE is not set
 # CONFIG_IPMI_HANDLER is not set
 # CONFIG_IPMI_PANIC_EVENT is not set
@@ -898,6 +935,7 @@ CONFIG_CRYPTO_MD5=m
 CONFIG_CRYPTO_SHA1=m
 CONFIG_CRYPTO_SHA256=m
 CONFIG_CRYPTO_SHA512=m
+# CONFIG_CRYPTO_WP512 is not set
 CONFIG_CRYPTO_DES=m
 CONFIG_CRYPTO_BLOWFISH=m
 CONFIG_CRYPTO_TWOFISH=m
@@ -906,6 +944,8 @@ CONFIG_CRYPTO_AES=m
 CONFIG_CRYPTO_CAST5=m
 CONFIG_CRYPTO_CAST6=m
 # CONFIG_CRYPTO_TEA is not set
+# CONFIG_CRYPTO_KHAZAD is not set
+# CONFIG_CRYPTO_ANUBIS is not set
 CONFIG_CRYPTO_ARC4=m
 CONFIG_CRYPTO_DEFLATE=m
 # CONFIG_CRYPTO_MICHAEL_MIC is not set

linux-2.4.28-xen-sparse/arch/xen/defconfig-xenU

@@ -1,5 +1,5 @@
 #
-# Automatically generated by make menuconfig: don't edit
+# Automatically generated make config: don't edit
 #
 CONFIG_XEN=y
 CONFIG_X86=y
@@ -12,11 +12,9 @@ CONFIG_UID16=y
 #
 # CONFIG_XEN_PRIVILEGED_GUEST is not set
 # CONFIG_XEN_PHYSDEV_ACCESS is not set
-# CONFIG_XEN_BLKDEV_BACKEND is not set
-# CONFIG_XEN_NETDEV_BACKEND is not set
-CONFIG_XEN_BLKDEV_FRONTEND=y
-CONFIG_XEN_NETDEV_FRONTEND=y
 CONFIG_XEN_SCRUB_PAGES=y
+CONFIG_XEN_NETDEV_FRONTEND=y
+CONFIG_XEN_BLKDEV_FRONTEND=y
 CONFIG_NO_IDLE_HZ=y
 # CONFIG_FOREIGN_PAGES is not set
 CONFIG_NETDEVICES=y
@@ -156,6 +154,10 @@ CONFIG_IP_NF_TARGET_ULOG=y
 # CONFIG_IP_SCTP is not set
 # CONFIG_ATM is not set
 CONFIG_VLAN_8021Q=y
+
+#
+#  
+#
 # CONFIG_IPX is not set
 # CONFIG_ATALK is not set
 
@@ -188,12 +190,20 @@ CONFIG_VLAN_8021Q=y
 # SCSI support
 #
 CONFIG_SCSI=y
+
+#
+# SCSI support type (disk, tape, CD-ROM)
+#
 CONFIG_BLK_DEV_SD=y
 CONFIG_SD_EXTRA_DEVS=40
 # CONFIG_CHR_DEV_ST is not set
 # CONFIG_CHR_DEV_OSST is not set
 # CONFIG_BLK_DEV_SR is not set
 CONFIG_CHR_DEV_SG=y
+
+#
+# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
+#
 # CONFIG_SCSI_DEBUG_QUEUES is not set
 # CONFIG_SCSI_MULTI_LUN is not set
 # CONFIG_SCSI_CONSTANTS is not set
@@ -219,10 +229,13 @@ CONFIG_CHR_DEV_SG=y
 # CONFIG_SCSI_MEGARAID2 is not set
 # CONFIG_SCSI_SATA is not set
 # CONFIG_SCSI_SATA_SVW is not set
+# CONFIG_SCSI_ATA_PIIX is not set
+# CONFIG_SCSI_SATA_NV is not set
 # CONFIG_SCSI_SATA_PROMISE is not set
 # CONFIG_SCSI_SATA_SX4 is not set
 # CONFIG_SCSI_SATA_SIL is not set
 # CONFIG_SCSI_SATA_SIS is not set
+# CONFIG_SCSI_SATA_ULI is not set
 # CONFIG_SCSI_SATA_VIA is not set
 # CONFIG_SCSI_SATA_VITESSE is not set
 # CONFIG_SCSI_BUSLOGIC is not set
@@ -305,6 +318,10 @@ CONFIG_PSMOUSE=y
 # CONFIG_INPUT_EMU10K1 is not set
 # CONFIG_INPUT_SERIO is not set
 # CONFIG_INPUT_SERPORT is not set
+
+#
+# Joysticks
+#
 # CONFIG_INPUT_ANALOG is not set
 # CONFIG_INPUT_A3D is not set
 # CONFIG_INPUT_ADI is not set

linux-2.4.28-xen-sparse/arch/xen/kernel/ldt.c

@@ -179,7 +179,7 @@ static int write_ldt(void * ptr, unsigned long bytecount, int oldmode)
 {
 	struct mm_struct * mm = current->mm;
 	__u32 entry_1, entry_2, *lp;
-	unsigned long phys_lp;
+	unsigned long mach_lp;
 	int error;
 	struct modify_ldt_ldt_s ldt_info;
 
@@ -208,7 +208,7 @@ static int write_ldt(void * ptr, unsigned long bytecount, int oldmode)
 	}
 
 	lp = (__u32 *) ((ldt_info.entry_number << 3) + (char *) mm->context.ldt);
-	phys_lp = arbitrary_virt_to_phys(lp);
+	mach_lp = arbitrary_virt_to_machine(lp);
 
    	/* Allow LDTs to be cleared by the user. */
    	if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
@@ -241,7 +241,7 @@ static int write_ldt(void * ptr, unsigned long bytecount, int oldmode)
 
 	/* Install the new entry ...  */
 install:
-	error = HYPERVISOR_update_descriptor(phys_lp, entry_1, entry_2);
+	error = HYPERVISOR_update_descriptor(mach_lp, entry_1, entry_2);
 
 out_unlock:
 	up(&mm->context.sem);

linux-2.4.28-xen-sparse/arch/xen/kernel/process.c

@@ -304,7 +304,7 @@ void dump_thread(struct pt_regs * regs, struct user * dump)
  * More important, however, is the fact that this allows us much
  * more flexibility.
  */
-void __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
+void fastcall __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 {
     struct thread_struct *next = &next_p->thread;
 
@@ -344,6 +344,7 @@ void __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
         op.cmd           = DOM0_IOPL;
         op.u.iopl.domain = DOMID_SELF;
         op.u.iopl.iopl   = next->io_pl;
+        op.interface_version = DOM0_INTERFACE_VERSION;
         queue_multicall1(__HYPERVISOR_dom0_op, (unsigned long)&op);
     }
 

linux-2.4.28-xen-sparse/arch/xen/kernel/signal.c

@@ -581,7 +581,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka,
  * want to handle. Thus you cannot kill init even with a SIGKILL even by
  * mistake.
  */
-int do_signal(struct pt_regs *regs, sigset_t *oldset)
+int fastcall do_signal(struct pt_regs *regs, sigset_t *oldset)
 {
 	siginfo_t info;
 	struct k_sigaction *ka;

linux-2.4.28-xen-sparse/arch/xen/mm/fault.c

@@ -84,27 +84,6 @@ asmlinkage void do_page_fault(struct pt_regs *regs,
         error_code &= 3;
         error_code |= (regs->xcs & 2) << 1;
 
-#if MMU_UPDATE_DEBUG > 0
-        if ( (error_code == 0) && (address >= TASK_SIZE) )
-        {
-            unsigned long paddr = __pa(address);
-            int i;
-            for ( i = 0; i < mmu_update_queue_idx; i++ )
-            {
-                if ( update_debug_queue[i].ptr == paddr )
-                {
-                    printk("XXX now(EIP=%08lx:ptr=%08lx) "
-                           "then(%s/%d:p/v=%08lx/%08lx)\n",
-                           regs->eip, address,
-                           update_debug_queue[i].file,
-                           update_debug_queue[i].line,
-                           update_debug_queue[i].ptr,
-                           update_debug_queue[i].val);
-                }
-            }
-        }
-#endif
-
 	if ( flush_page_update_queue() != 0 )
 		return;
 

linux-2.4.28-xen-sparse/drivers/block/ll_rw_blk.c

@@ -132,7 +132,7 @@ static inline int get_max_sectors(kdev_t dev)
 	return max_sectors[MAJOR(dev)][MINOR(dev)];
 }
 
-inline request_queue_t *blk_get_queue(kdev_t dev)
+static inline request_queue_t *__blk_get_queue(kdev_t dev)
 {
 	struct blk_dev_struct *bdev = blk_dev + MAJOR(dev);
 
@@ -142,6 +142,11 @@ inline request_queue_t *blk_get_queue(kdev_t dev)
 		return &blk_dev[MAJOR(dev)].request_queue;
 }
 
+request_queue_t *blk_get_queue(kdev_t dev)
+{
+	return __blk_get_queue(dev);
+}
+
 static int __blk_cleanup_queue(struct request_list *list)
 {
 	struct list_head *head = &list->free;
@@ -303,7 +308,7 @@ void blk_queue_bounce_limit(request_queue_t *q, u64 dma_addr)
 /*
  * can we merge the two segments, or do we need to start a new one?
  */
-inline int blk_seg_merge_ok(struct buffer_head *bh, struct buffer_head *nxt)
+static inline int __blk_seg_merge_ok(struct buffer_head *bh, struct buffer_head *nxt)
 {
 	/*
 	 * if bh and nxt are contigous and don't cross a 4g boundary, it's ok
@@ -314,6 +319,11 @@ inline int blk_seg_merge_ok(struct buffer_head *bh, struct buffer_head *nxt)
 	return 0;
 }
 
+int blk_seg_merge_ok(struct buffer_head *bh, struct buffer_head *nxt)
+{
+	return __blk_seg_merge_ok(bh, nxt);
+}
+
 static inline int ll_new_segment(request_queue_t *q, struct request *req, int max_segments)
 {
 	if (req->nr_segments < max_segments) {
@@ -326,7 +336,7 @@ static inline int ll_new_segment(request_queue_t *q, struct request *req, int ma
 static int ll_back_merge_fn(request_queue_t *q, struct request *req, 
 			    struct buffer_head *bh, int max_segments)
 {
-	if (blk_seg_merge_ok(req->bhtail, bh))
+	if (__blk_seg_merge_ok(req->bhtail, bh))
 		return 1;
 
 	return ll_new_segment(q, req, max_segments);
@@ -335,7 +345,7 @@ static int ll_back_merge_fn(request_queue_t *q, struct request *req,
 static int ll_front_merge_fn(request_queue_t *q, struct request *req, 
 			     struct buffer_head *bh, int max_segments)
 {
-	if (blk_seg_merge_ok(bh, req->bh))
+	if (__blk_seg_merge_ok(bh, req->bh))
 		return 1;
 
 	return ll_new_segment(q, req, max_segments);
@@ -346,7 +356,7 @@ static int ll_merge_requests_fn(request_queue_t *q, struct request *req,
 {
 	int total_segments = req->nr_segments + next->nr_segments;
 
-	if (blk_seg_merge_ok(req->bhtail, next->bh))
+	if (__blk_seg_merge_ok(req->bhtail, next->bh))
 		total_segments--;
 
 	if (total_segments > max_segments)
@@ -1255,7 +1265,7 @@ void generic_make_request (int rw, struct buffer_head * bh)
 	 * Stacking drivers are expected to know what they are doing.
 	 */
 	do {
-		q = blk_get_queue(bh->b_rdev);
+		q = __blk_get_queue(bh->b_rdev);
 		if (!q) {
 			printk(KERN_ERR
 			       "generic_make_request: Trying to access "

linux-2.4.28-xen-sparse/drivers/char/tty_io.c

@@ -1688,11 +1688,11 @@ static int tiocsetd(struct tty_struct *tty, int *arg)
 
 static int send_break(struct tty_struct *tty, int duration)
 {
-	set_current_state(TASK_INTERRUPTIBLE);
-
 	tty->driver.break_ctl(tty, -1);
-	if (!signal_pending(current))
+	if (!signal_pending(current)) {
+		set_current_state(TASK_INTERRUPTIBLE);
 		schedule_timeout(duration);
+	}
 	tty->driver.break_ctl(tty, 0);
 	if (signal_pending(current))
 		return -EINTR;

linux-2.4.28-xen-sparse/include/asm-xen/pgtable.h

@@ -350,7 +350,7 @@ static inline void make_pages_writable(void *va, unsigned int nr)
     }
 }
 
-static inline unsigned long arbitrary_virt_to_phys(void *va)
+static inline unsigned long arbitrary_virt_to_machine(void *va)
 {
     pgd_t *pgd = pgd_offset_k((unsigned long)va);
     pmd_t *pmd = pmd_offset(pgd, (unsigned long)va);

linux-2.4.28-xen-sparse/include/asm-xen/smp.h

@@ -38,7 +38,7 @@ extern int cpu_sibling_map[];
 
 extern void smp_flush_tlb(void);
 extern void smp_message_irq(int cpl, void *dev_id, struct pt_regs *regs);
-extern void smp_send_reschedule(int cpu);
+extern void fastcall smp_send_reschedule(int cpu);
 extern void smp_invalidate_rcv(void);		/* Process an NMI */
 extern void (*mtrr_hook) (void);
 extern void zap_low_mappings (void);

linux-2.4.28-xen-sparse/include/linux/mm.h

@@ -309,11 +309,9 @@ typedef struct page {
 /* Make it prettier to test the above... */
 #define UnlockPage(page)	unlock_page(page)
 #define Page_Uptodate(page)	test_bit(PG_uptodate, &(page)->flags)
-#define SetPageUptodate(page) \
-	do {								\
-		arch_set_page_uptodate(page);				\
-		set_bit(PG_uptodate, &(page)->flags);			\
-	} while (0)
+#ifndef SetPageUptodate
+#define SetPageUptodate(page)	set_bit(PG_uptodate, &(page)->flags)
+#endif
 #define ClearPageUptodate(page)	clear_bit(PG_uptodate, &(page)->flags)
 #define PageDirty(page)		test_bit(PG_dirty, &(page)->flags)
 #define SetPageDirty(page)	set_bit(PG_dirty, &(page)->flags)

linux-2.4.28-xen-sparse/include/linux/sched.h

@@ -769,7 +769,7 @@ extern struct mm_struct * start_lazy_tlb(void);
 extern void end_lazy_tlb(struct mm_struct *mm);
 
 /* mmdrop drops the mm and the page tables */
-extern inline void FASTCALL(__mmdrop(struct mm_struct *));
+extern void FASTCALL(__mmdrop(struct mm_struct *));
 static inline void mmdrop(struct mm_struct * mm)
 {
 	if (atomic_dec_and_test(&mm->mm_count))

linux-2.4.28-xen-sparse/mm/highmem.c

@@ -130,7 +130,7 @@ start:
 	return vaddr;
 }
 
-void *kmap_high(struct page *page, int nonblocking)
+void fastcall *kmap_high(struct page *page, int nonblocking)
 {
 	unsigned long vaddr;
 
@@ -155,7 +155,7 @@ void *kmap_high(struct page *page, int nonblocking)
 	return (void*) vaddr;
 }
 
-void kunmap_high(struct page *page)
+void fastcall kunmap_high(struct page *page)
 {
 	unsigned long vaddr;
 	unsigned long nr;

linux-2.4.28-xen-sparse/mm/memory.c

@@ -1439,7 +1439,7 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct * vma,
  * On a two-level page table, this ends up actually being entirely
  * optimized away.
  */
-pmd_t *__pmd_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
+pmd_t fastcall *__pmd_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
 {
 	pmd_t *new;
 
@@ -1473,7 +1473,7 @@ out:
  * We've already handled the fast-path in-line, and we own the
  * page table lock.
  */
-pte_t *pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
+pte_t fastcall *pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
 {
 	if (pmd_none(*pmd)) {
 		pte_t *new;

linux-2.4.28-xen-sparse/mm/page_alloc.c

@@ -109,7 +109,7 @@ static struct tq_struct free_pages_ok_no_irq_task = {
  * -- wli
  */
 
-static void __free_pages_ok (struct page *page, unsigned int order)
+static void fastcall __free_pages_ok (struct page *page, unsigned int order)
 {
 	unsigned long index, page_idx, mask, flags;
 	free_area_t *area;
@@ -242,7 +242,7 @@ static inline struct page * expand (zone_t *zone, struct page *page,
 }
 
 static FASTCALL(struct page * rmqueue(zone_t *zone, unsigned int order));
-static struct page * rmqueue(zone_t *zone, unsigned int order)
+static struct page * fastcall rmqueue(zone_t *zone, unsigned int order)
 {
 	free_area_t * area = zone->free_area + order;
 	unsigned int curr_order = order;
@@ -288,7 +288,7 @@ static struct page * rmqueue(zone_t *zone, unsigned int order)
 }
 
 #ifndef CONFIG_DISCONTIGMEM
-struct page *_alloc_pages(unsigned int gfp_mask, unsigned int order)
+struct page * fastcall _alloc_pages(unsigned int gfp_mask, unsigned int order)
 {
 	return __alloc_pages(gfp_mask, order,
 		contig_page_data.node_zonelists+(gfp_mask & GFP_ZONEMASK));
@@ -296,7 +296,7 @@ struct page *_alloc_pages(unsigned int gfp_mask, unsigned int order)
 #endif
 
 static struct page * FASTCALL(balance_classzone(zone_t *, unsigned int, unsigned int, int *));
-static struct page * balance_classzone(zone_t * classzone, unsigned int gfp_mask, unsigned int order, int * freed)
+static struct page * fastcall balance_classzone(zone_t * classzone, unsigned int gfp_mask, unsigned int order, int * freed)
 {
 	struct page * page = NULL;
 	int __freed;
@@ -374,7 +374,7 @@ static inline unsigned long zone_free_pages(zone_t * zone, unsigned int order)
 /*
  * This is the 'heart' of the zoned buddy allocator:
  */
-struct page * __alloc_pages(unsigned int gfp_mask, unsigned int order, zonelist_t *zonelist)
+struct page * fastcall __alloc_pages(unsigned int gfp_mask, unsigned int order, zonelist_t *zonelist)
 {
 	zone_t **zone, * classzone;
 	struct page * page;
@@ -487,7 +487,7 @@ struct page * __alloc_pages(unsigned int gfp_mask, unsigned int order, zonelist_
 /*
  * Common helper functions.
  */
-unsigned long __get_free_pages(unsigned int gfp_mask, unsigned int order)
+fastcall unsigned long __get_free_pages(unsigned int gfp_mask, unsigned int order)
 {
 	struct page * page;
 
@@ -497,7 +497,7 @@ unsigned long __get_free_pages(unsigned int gfp_mask, unsigned int order)
 	return (unsigned long) page_address(page);
 }
 
-unsigned long get_zeroed_page(unsigned int gfp_mask)
+fastcall unsigned long get_zeroed_page(unsigned int gfp_mask)
 {
 	struct page * page;
 
@@ -510,13 +510,13 @@ unsigned long get_zeroed_page(unsigned int gfp_mask)
 	return 0;
 }
 
-void __free_pages(struct page *page, unsigned int order)
+fastcall void __free_pages(struct page *page, unsigned int order)
 {
 	if (!PageReserved(page) && put_page_testzero(page))
 		__free_pages_ok(page, order);
 }
 
-void free_pages(unsigned long addr, unsigned int order)
+fastcall void free_pages(unsigned long addr, unsigned int order)
 {
 	if (addr != 0)
 		__free_pages(virt_to_page(addr), order);

linux-2.4.28-xen-sparse/mm/swapfile.c

@@ -256,7 +256,7 @@ static int exclusive_swap_page(struct page *page)
  * work, but we opportunistically check whether
  * we need to get all the locks first..
  */
-int can_share_swap_page(struct page *page)
+int fastcall can_share_swap_page(struct page *page)
 {
 	int retval = 0;
 
@@ -284,7 +284,7 @@ int can_share_swap_page(struct page *page)
  * Work out if there are any other processes sharing this
  * swap cache page. Free it if you can. Return success.
  */
-int remove_exclusive_swap_page(struct page *page)
+int fastcall remove_exclusive_swap_page(struct page *page)
 {
 	int retval;
 	struct swap_info_struct * p;

linux-2.6.10-rc2-xen-sparse/arch/xen/configs/xen0_defconfig

@@ -114,6 +114,7 @@ CONFIG_X86_CPUID=y
 # CONFIG_EDD is not set
 CONFIG_NOHIGHMEM=y
 # CONFIG_HIGHMEM4G is not set
+CONFIG_MTRR=y
 CONFIG_HAVE_DEC_LOCK=y
 # CONFIG_REGPARM is not set
 

linux-2.6.10-rc2-xen-sparse/arch/xen/i386/Kconfig

@@ -573,6 +573,11 @@ config HAVE_ARCH_BOOTMEM_NODE
 #	  low memory.  Setting this option will put user-space page table
 #	  entries in high memory.
 
+config MTRR
+	bool
+	depends on XEN_PRIVILEGED_GUEST
+	default y
+
 #config MTRR
 #	 bool "MTRR (Memory Type Range Register) support"
 #	 ---help---

linux-2.6.10-rc2-xen-sparse/arch/xen/i386/kernel/cpu/Makefile

@@ -18,7 +18,7 @@ c-obj-y	+=	umc.o
 
 #obj-$(CONFIG_X86_MCE)	+=	../../../../i386/kernel/cpu/mcheck/
 
-#obj-$(CONFIG_MTRR)	+= 	../../../../i386/kernel/cpu/mtrr/
+obj-$(CONFIG_MTRR)	+= 	mtrr/
 #obj-$(CONFIG_CPU_FREQ)	+=	../../../../i386/kernel/cpu/cpufreq/
 
 c-link	:=

linux-2.6.10-rc2-xen-sparse/arch/xen/i386/kernel/entry.S

@@ -64,6 +64,7 @@ ES		= 0x20
 ORIG_EAX	= 0x24
 EIP		= 0x28
 CS		= 0x2C
+EVENT_MASK	= 0x2E
 EFLAGS		= 0x30
 OLDESP		= 0x34
 OLDSS		= 0x38
@@ -79,19 +80,23 @@ VM_MASK		= 0x00020000
 #define evtchn_upcall_pending		/* 0 */
 #define evtchn_upcall_mask		1
 
+#define XEN_GET_VCPU_INFO(reg)	movl HYPERVISOR_shared_info,reg
 #define XEN_BLOCK_EVENTS(reg)	movb $1,evtchn_upcall_mask(reg)
 #define XEN_UNBLOCK_EVENTS(reg)	movb $0,evtchn_upcall_mask(reg)
-#define XEN_TEST_PENDING(reg)	testb $0xFF,evtchn_upcall_pending(%reg)
+#define XEN_SAVE_UPCALL_MASK(reg,tmp,off) \
+	movb evtchn_upcall_mask(reg), tmp; \
+	movb tmp, off(%esp)
+
+#define XEN_TEST_PENDING(reg)	testb $0xFF,evtchn_upcall_pending(reg)
 
 #ifdef CONFIG_PREEMPT
-#define preempt_stop		movl HYPERVISOR_shared_info,%esi	; \
-				XEN_BLOCK_EVENTS(%esi)
+#define preempt_stop		XEN_BLOCK_EVENTS(%esi)
 #else
 #define preempt_stop
 #define resume_kernel		restore_all_enable_events
 #endif
 
-#define SAVE_ALL \
+#define SAVE_ALL_NO_EVENTMASK \
 	cld; \
 	pushl %es; \
 	pushl %ds; \
@@ -104,7 +109,12 @@ VM_MASK		= 0x00020000
 	pushl %ebx; \
 	movl $(__USER_DS), %edx; \
 	movl %edx, %ds; \
-	movl %edx, %es;
+	movl %edx, %es
+
+#define SAVE_ALL \
+	SAVE_ALL_NO_EVENTMASK; \
+	XEN_GET_VCPU_INFO(%esi); \
+	XEN_SAVE_UPCALL_MASK(%esi,%dl,EVENT_MASK)
 
 #define RESTORE_INT_REGS \
 	popl %ebx;	\
@@ -154,6 +164,7 @@ ENTRY(ret_from_fork)
 	call schedule_tail
 	GET_THREAD_INFO(%ebp)
 	popl %eax
+	XEN_GET_VCPU_INFO(%esi)
 	jmp syscall_exit
 
 /*
@@ -174,34 +185,31 @@ ret_from_intr:
 	testl $(VM_MASK | 2), %eax
 	jz resume_kernel		# returning to kernel or vm86-space
 ENTRY(resume_userspace)
-	movl HYPERVISOR_shared_info,%esi
-	XEN_BLOCK_EVENTS(%esi)		# make tests atomic
-					# make sure we don't miss an interrupt
+	XEN_GET_VCPU_INFO(%esi)
+	XEN_BLOCK_EVENTS(%esi)		# make sure we don't miss an interrupt
 					# setting need_resched or sigpending
 					# between sampling and the iret
-ret_syscall_tests:
 	movl TI_flags(%ebp), %ecx
 	andl $_TIF_WORK_MASK, %ecx	# is there any work to be done on
 					# int/exception return?
 	jne work_pending
-	jmp restore_all_enable_events
+	jmp restore_all
 
 #ifdef CONFIG_PREEMPT
 ENTRY(resume_kernel)
-	movl HYPERVISOR_shared_info,%esi
+	XEN_GET_VCPU_INFO(%esi)
 	cmpl $0,TI_preempt_count(%ebp)	# non-zero preempt_count ?
-	jnz restore_all_enable_events
+	jnz restore_all
 need_resched:
 	movl TI_flags(%ebp), %ecx	# need_resched set ?
 	testb $_TIF_NEED_RESCHED, %cl
-	jz restore_all_enable_events
-	testl $IF_MASK,EFLAGS(%esp)     # interrupts off (exception path) ?
-	jz restore_all_enable_events
+	jz restore_all
+	testb $0xFF,EVENT_MASK(%esp)	# interrupts off (exception path) ?
+	jnz restore_all
 	movl $PREEMPT_ACTIVE,TI_preempt_count(%ebp)
-	XEN_UNBLOCK_EVENTS(%esi)	# reenable event callbacks
+	XEN_UNBLOCK_EVENTS(%esi)
 	call schedule
-	movl HYPERVISOR_shared_info,%esi
-	XEN_BLOCK_EVENTS(%esi)		# make tests atomic
+	XEN_BLOCK_EVENTS(%esi)
 	movl $0,TI_preempt_count(%ebp)
 	jmp need_resched
 #endif
@@ -267,35 +275,44 @@ syscall_call:
 	call *sys_call_table(,%eax,4)
 	movl %eax,EAX(%esp)		# store the return value
 syscall_exit:
-	movl HYPERVISOR_shared_info,%esi
-	XEN_BLOCK_EVENTS(%esi)		# make tests atomic
-					# make sure we don't miss an interrupt
+	XEN_BLOCK_EVENTS(%esi)		# make sure we don't miss an interrupt
 					# setting need_resched or sigpending
 					# between sampling and the iret
 	movl TI_flags(%ebp), %ecx
 	testw $_TIF_ALLWORK_MASK, %cx	# current->work
 	jne syscall_exit_work
-	jmp restore_all_enable_events
+restore_all:
+	testl $VM_MASK, EFLAGS(%esp)
+	jnz resume_vm86
+	movb EVENT_MASK(%esp), %al
+	notb %al			# %al == ~saved_mask
+	andb evtchn_upcall_mask(%esi),%al
+	andb $1,%al			# %al == mask & ~saved_mask
+	jnz restore_all_enable_events	#     != 0 => reenable event delivery
+	RESTORE_ALL
+
+resume_vm86:
+	XEN_UNBLOCK_EVENTS(%esi)
+	RESTORE_REGS
+	movl %eax,(%esp)
+	movl $__HYPERVISOR_switch_vm86,%eax
+	int $0x82
+	ud2
 
 	# perform work that needs to be done immediately before resumption
 	ALIGN
 work_pending:
-	XEN_UNBLOCK_EVENTS(%esi)	# reenable event callbacks
 	testb $_TIF_NEED_RESCHED, %cl
 	jz work_notifysig
 work_resched:
 	call schedule
-	movl HYPERVISOR_shared_info,%esi
-	XEN_BLOCK_EVENTS(%esi)		# make tests atomic
-					# make sure we don't miss an interrupt
+	XEN_BLOCK_EVENTS(%esi)		# make sure we don't miss an interrupt
 					# setting need_resched or sigpending
 					# between sampling and the iret
 	movl TI_flags(%ebp), %ecx
 	andl $_TIF_WORK_MASK, %ecx	# is there any work to be done other
 					# than syscall tracing?
-	jz restore_all_enable_events
-	# XXXcl sti missing???
-	XEN_UNBLOCK_EVENTS(%esi)	# reenable event callbacks
+	jz restore_all
 	testb $_TIF_NEED_RESCHED, %cl
 	jnz work_resched
 
@@ -307,8 +324,7 @@ work_notifysig:				# deal with pending signals and
 					# vm86-space
 	xorl %edx, %edx
 	call do_notify_resume
-	movl HYPERVISOR_shared_info,%esi
-	jmp restore_all_enable_events
+	jmp restore_all
 
 	ALIGN
 work_notifysig_v86:
@@ -318,8 +334,7 @@ work_notifysig_v86:
 	movl %eax, %esp
 	xorl %edx, %edx
 	call do_notify_resume
-	movl HYPERVISOR_shared_info,%esi
-	jmp restore_all_enable_events
+	jmp restore_all
 
 	# perform syscall exit tracing
 	ALIGN
@@ -336,11 +351,9 @@ syscall_trace_entry:
 	# perform syscall exit tracing
 	ALIGN
 syscall_exit_work:
-	movl HYPERVISOR_shared_info,%esi
 	testb $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP), %cl
 	jz work_pending
-	XEN_UNBLOCK_EVENTS(%esi)	# reenable event callbacks
-					# could let do_syscall_trace() call
+	XEN_UNBLOCK_EVENTS(%esi)	# could let do_syscall_trace() call
 					# schedule() instead
 	movl %esp, %eax
 	movl $1, %edx
@@ -360,6 +373,44 @@ syscall_badsys:
 	movl $-ENOSYS,EAX(%esp)
 	jmp resume_userspace
 
+#if 0 /* XEN */
+/*
+ * Build the entry stubs and pointer table with
+ * some assembler magic.
+ */
+.data
+ENTRY(interrupt)
+.text
+
+vector=0
+ENTRY(irq_entries_start)
+.rept NR_IRQS
+	ALIGN
+1:	pushl $vector-256
+	jmp common_interrupt
+.data
+	.long 1b
+.text
+vector=vector+1
+.endr
+
+	ALIGN
+common_interrupt:
+	SAVE_ALL
+	call do_IRQ
+	jmp ret_from_intr
+
+#define BUILD_INTERRUPT(name, nr)	\
+ENTRY(name)				\
+	pushl $nr-256;			\
+	SAVE_ALL			\
+	call smp_/**/name;	\
+	jmp ret_from_intr;
+
+/* The include is where all of the SMP etc. interrupts come from */
+#include "entry_arch.h"
+#endif /* XEN */
+
 ENTRY(divide_error)
 	pushl $0			# no error code
 	pushl $do_divide_error
@@ -385,6 +436,8 @@ error_code:
 	movl %ecx, %ds
 	movl %ecx, %es
 	movl %esp,%eax			# pt_regs pointer
+	XEN_GET_VCPU_INFO(%esi)
+	XEN_SAVE_UPCALL_MASK(%esi,%dl,EVENT_MASK+8)
 	call *%edi
 	jmp ret_from_exception
 
@@ -401,24 +454,24 @@ error_code:
 # activation and restart the handler using the previous one.
 ENTRY(hypervisor_callback)
 	pushl %eax
-	SAVE_ALL
-	GET_THREAD_INFO(%ebp)
+	SAVE_ALL_NO_EVENTMASK
 	movl EIP(%esp),%eax
 	cmpl $scrit,%eax
 	jb   11f
 	cmpl $ecrit,%eax
 	jb   critical_region_fixup
-11:	push %esp
+11:	XEN_GET_VCPU_INFO(%esi)
+	movb $0, EVENT_MASK(%esp)
+	push %esp
 	call evtchn_do_upcall
 	add  $4,%esp
-	movl HYPERVISOR_shared_info,%esi
-	movb CS(%esp),%cl
-	test $2,%cl			# slow return to ring 2 or 3
-	jne  ret_syscall_tests
+	jmp  ret_from_intr
+
+        ALIGN
 restore_all_enable_events:  
-safesti:XEN_UNBLOCK_EVENTS(%esi)	# reenable event callbacks
+	XEN_UNBLOCK_EVENTS(%esi)
 scrit:	/**** START OF CRITICAL REGION ****/
-	testb $1,evtchn_upcall_pending(%esi)
+	XEN_TEST_PENDING(%esi)
 	jnz  14f			# process more events if necessary...
 	RESTORE_ALL
 14:	XEN_BLOCK_EVENTS(%esi)
@@ -450,7 +503,7 @@ critical_region_fixup:
 	jmp  11b
 
 critical_fixup_table:
-	.byte 0x00,0x00,0x00		# testb $0xff,(%esi)
+	.byte 0x00,0x00,0x00		# testb $0xff,(%esi) = XEN_TEST_PENDING
 	.byte 0x00,0x00			# jnz  14f
 	.byte 0x00			# pop  %ebx
 	.byte 0x04			# pop  %ecx
@@ -468,11 +521,13 @@ critical_fixup_table:
 
 # Hypervisor uses this for application faults while it executes.
 ENTRY(failsafe_callback)
-1:      popl %ds
-2:      popl %es
-3:      popl %fs
-4:      popl %gs
-5:	iret
+1:	popl %ds
+2:	popl %es
+3:	popl %fs
+4:	popl %gs
+	subl $4,%esp
+	SAVE_ALL
+	jmp  ret_from_exception
 .section .fixup,"ax";	\
 6:	movl $0,(%esp);	\
 	jmp 1b;		\
@@ -482,12 +537,6 @@ ENTRY(failsafe_callback)
 	jmp 3b;		\
 9:	movl $0,(%esp);	\
 	jmp 4b;		\
-10:	pushl %ss;	\
-	popl %ds;	\
-	pushl %ss;	\
-	popl %es;	\
-	pushl $11;	\
-	call do_exit;	\
 .previous;		\
 .section __ex_table,"a";\
 	.align 4;	\
@@ -495,7 +544,6 @@ ENTRY(failsafe_callback)
 	.long 2b,7b;	\
 	.long 3b,8b;	\
 	.long 4b,9b;	\
-	.long 5b,10b;	\
 .previous
 
 ENTRY(coprocessor_error)
@@ -548,10 +596,10 @@ debug_stack_correct:
 	movl %esp,%eax			# pt_regs pointer
 	call do_debug
 	testl %eax,%eax
-	jnz restore_all_enable_events
+	jnz restore
 	jmp ret_from_exception
 
-#if 0
+#if 0 /* XEN */
 /*
  * NMI is doubly nasty. It can happen _while_ we're handling
  * a debug fault, and the debug fault hasn't yet been able to
@@ -595,7 +643,7 @@ nmi_debug_stack_check:
 nmi_debug_stack_fixup:
 	FIX_STACK(24,nmi_stack_correct, 1)
 	jmp nmi_stack_correct
-#endif
+#endif /* XEN */
 
 ENTRY(int3)
 	pushl $-1			# mark this as an int
@@ -604,7 +652,7 @@ ENTRY(int3)
 	movl %esp,%eax		# pt_regs pointer
 	call do_int3
 	testl %eax,%eax
-	jnz restore_all_enable_events
+	jnz restore_all
 	jmp ret_from_exception
 
 ENTRY(overflow)
@@ -627,10 +675,6 @@ ENTRY(coprocessor_segment_overrun)
 	pushl $do_coprocessor_segment_overrun
 	jmp error_code
 
-ENTRY(double_fault)
-	pushl $do_double_fault
-	jmp error_code
-
 ENTRY(invalid_TSS)
 	pushl $do_invalid_TSS
 	jmp error_code
@@ -655,31 +699,31 @@ ENTRY(alignment_check)
 # which is the linear faulting address.
 # fastcall register usage:  %eax = pt_regs, %edx = error code,
 #			    %ecx = fault address
-#define PAGE_FAULT_STUB(_name1, _name2)					  \
-ENTRY(_name1)								  \
-	pushl %ds							; \
-	pushl %eax							; \
-	xorl %eax, %eax							; \
-	pushl %ebp							; \
-	pushl %edi							; \
-	pushl %esi							; \
-	pushl %edx							; \
-	decl %eax			/* eax = -1 */			; \
-	pushl %ecx							; \
-	pushl %ebx							; \
-	cld								; \
-	movl %es,%edi							; \
-	movl ES(%esp), %ecx		/* get the faulting address */	; \
-	movl ORIG_EAX(%esp), %edx	/* get the error code */	; \
-	movl %eax, ORIG_EAX(%esp)					; \
-	movl %edi, ES(%esp)						; \
-	movl $(__KERNEL_DS), %eax					; \
-	movl %eax, %ds							; \
-	movl %eax, %es							; \
-	movl %esp,%eax			/* pt_regs pointer */		; \
-	call _name2							; \
-	jmp ret_from_exception						;
-PAGE_FAULT_STUB(page_fault, do_page_fault)
+ENTRY(page_fault)
+	pushl %ds
+	pushl %eax
+	xorl %eax, %eax
+	pushl %ebp
+	pushl %edi
+	pushl %esi
+	pushl %edx
+	decl %eax			/* eax = -1 */
+	pushl %ecx
+	pushl %ebx
+	cld
+	movl %es,%edi
+	movl ES(%esp), %ecx		/* get the faulting address */
+	movl ORIG_EAX(%esp), %edx	/* get the error code */
+	movl %eax, ORIG_EAX(%esp)
+	movl %edi, ES(%esp)
+	movl $(__KERNEL_DS),%eax
+	movl %eax, %ds
+	movl %eax, %es
+	movl %esp,%eax			/* pt_regs pointer */
+	XEN_GET_VCPU_INFO(%esi)
+	XEN_SAVE_UPCALL_MASK(%esi,%bl,EVENT_MASK+12)
+	call do_page_fault
+	jmp ret_from_exception
 
 #ifdef CONFIG_X86_MCE
 ENTRY(machine_check)
@@ -807,7 +851,7 @@ ENTRY(sys_call_table)
 	.long sys_iopl		/* 110 */
 	.long sys_vhangup
 	.long sys_ni_syscall	/* old "idle" system call */
-	.long sys_ni_syscall	/* disable sys_vm86old */
+	.long sys_vm86old
 	.long sys_wait4
 	.long sys_swapoff	/* 115 */
 	.long sys_sysinfo

linux-2.6.10-rc2-xen-sparse/arch/xen/i386/kernel/ldt.c

@@ -193,7 +193,7 @@ static int write_ldt(void __user * ptr, unsigned long bytecount, int oldmode)
 {
 	struct mm_struct * mm = current->mm;
 	__u32 entry_1, entry_2, *lp;
-	unsigned long phys_lp;
+	unsigned long mach_lp;
 	int error;
 	struct user_desc ldt_info;
 
@@ -222,7 +222,7 @@ static int write_ldt(void __user * ptr, unsigned long bytecount, int oldmode)
 	}
 
 	lp = (__u32 *) ((ldt_info.entry_number << 3) + (char *) mm->context.ldt);
-	phys_lp = arbitrary_virt_to_phys(lp);
+	mach_lp = arbitrary_virt_to_machine(lp);
 
    	/* Allow LDTs to be cleared by the user. */
    	if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
@@ -240,7 +240,7 @@ static int write_ldt(void __user * ptr, unsigned long bytecount, int oldmode)
 
 	/* Install the new entry ...  */
 install:
-	error = HYPERVISOR_update_descriptor(phys_lp, entry_1, entry_2);
+	error = HYPERVISOR_update_descriptor(mach_lp, entry_1, entry_2);
 
 out_unlock:
 	up(&mm->context.sem);

linux-2.6.10-rc2-xen-sparse/arch/xen/i386/kernel/process.c

@@ -538,6 +538,7 @@ struct task_struct fastcall * __switch_to(struct task_struct *prev_p, struct tas
 		op.cmd           = DOM0_IOPL;
 		op.u.iopl.domain = DOMID_SELF;
 		op.u.iopl.iopl   = next->io_pl;
+		op.interface_version = DOM0_INTERFACE_VERSION;
 		queue_multicall1(__HYPERVISOR_dom0_op, (unsigned long)&op);
 	}
 

linux-2.6.10-rc2-xen-sparse/arch/xen/i386/kernel/setup.c

@@ -1389,10 +1389,11 @@ void __init setup_arch(char **cmdline_p)
 	init_mm.end_data = (unsigned long) _edata;
 	init_mm.brk = (PFN_UP(__pa(xen_start_info.pt_base)) + xen_start_info.nr_pt_frames) << PAGE_SHIFT;
 
-	code_resource.start = virt_to_phys(_text);
-	code_resource.end = virt_to_phys(_etext)-1;
-	data_resource.start = virt_to_phys(_etext);
-	data_resource.end = virt_to_phys(_edata)-1;
+	/* XEN: This is nonsense: kernel may not even be contiguous in RAM. */
+	/*code_resource.start = virt_to_phys(_text);*/
+	/*code_resource.end = virt_to_phys(_etext)-1;*/
+	/*data_resource.start = virt_to_phys(_etext);*/
+	/*data_resource.end = virt_to_phys(_edata)-1;*/
 
 	parse_cmdline_early(cmdline_p);
 

linux-2.6.10-rc2-xen-sparse/arch/xen/i386/kernel/traps.c

@@ -76,7 +76,6 @@ asmlinkage void overflow(void);
 asmlinkage void bounds(void);
 asmlinkage void invalid_op(void);
 asmlinkage void device_not_available(void);
-asmlinkage void double_fault(void);
 asmlinkage void coprocessor_segment_overrun(void);
 asmlinkage void invalid_TSS(void);
 asmlinkage void segment_not_present(void);
@@ -455,7 +454,6 @@ DO_VM86_ERROR( 4, SIGSEGV, "overflow", overflow)
 DO_VM86_ERROR( 5, SIGSEGV, "bounds", bounds)
 DO_ERROR_INFO( 6, SIGILL,  "invalid operand", invalid_op, ILL_ILLOPN, regs->eip)
 DO_VM86_ERROR( 7, SIGSEGV, "device not available", device_not_available)
-DO_ERROR( 8, SIGSEGV, "double fault", double_fault)
 DO_ERROR( 9, SIGFPE,  "coprocessor segment overrun", coprocessor_segment_overrun)
 DO_ERROR(10, SIGSEGV, "invalid TSS", invalid_TSS)
 DO_ERROR(11, SIGBUS,  "segment not present", segment_not_present)
@@ -964,7 +962,6 @@ static trap_info_t trap_table[] = {
 	{  5, 3, __KERNEL_CS, (unsigned long)bounds			},
 	{  6, 0, __KERNEL_CS, (unsigned long)invalid_op			},
 	{  7, 0, __KERNEL_CS, (unsigned long)device_not_available	},
-	{  8, 0, __KERNEL_CS, (unsigned long)double_fault		},
 	{  9, 0, __KERNEL_CS, (unsigned long)coprocessor_segment_overrun },
 	{ 10, 0, __KERNEL_CS, (unsigned long)invalid_TSS		},
 	{ 11, 0, __KERNEL_CS, (unsigned long)segment_not_present	},

linux-2.6.10-rc2-xen-sparse/arch/xen/i386/mm/hypervisor.c

@@ -56,62 +56,6 @@ static mmu_update_t update_queue[QUEUE_SIZE];
 unsigned int mmu_update_queue_idx = 0;
 #define idx mmu_update_queue_idx
 
-#if MMU_UPDATE_DEBUG > 0
-page_update_debug_t update_debug_queue[QUEUE_SIZE] = {{0}};
-#undef queue_l1_entry_update
-#undef queue_l2_entry_update
-#endif
-#if MMU_UPDATE_DEBUG > 3
-static void DEBUG_allow_pt_reads(void)
-{
-    pte_t *pte;
-    mmu_update_t update;
-    int i;
-    for ( i = idx-1; i >= 0; i-- )
-    {
-        pte = update_debug_queue[i].ptep;
-        if ( pte == NULL ) continue;
-        update_debug_queue[i].ptep = NULL;
-        update.ptr = virt_to_machine(pte);
-        update.val = update_debug_queue[i].pteval;
-        HYPERVISOR_mmu_update(&update, 1, NULL);
-    }
-}
-static void DEBUG_disallow_pt_read(unsigned long va)
-{
-    pte_t *pte;
-    pmd_t *pmd;
-    pgd_t *pgd;
-    unsigned long pteval;
-    /*
-     * We may fault because of an already outstanding update.
-     * That's okay -- it'll get fixed up in the fault handler.
-     */
-    mmu_update_t update;
-    pgd = pgd_offset_k(va);
-    pmd = pmd_offset(pgd, va);
-    pte = pte_offset_kernel(pmd, va); /* XXXcl */
-    update.ptr = virt_to_machine(pte);
-    pteval = *(unsigned long *)pte;
-    update.val = pteval & ~_PAGE_PRESENT;
-    HYPERVISOR_mmu_update(&update, 1, NULL);
-    update_debug_queue[idx].ptep = pte;
-    update_debug_queue[idx].pteval = pteval;
-}
-#endif
-
-#if MMU_UPDATE_DEBUG > 1
-#undef queue_pt_switch
-#undef queue_tlb_flush
-#undef queue_invlpg
-#undef queue_pgd_pin
-#undef queue_pgd_unpin
-#undef queue_pte_pin
-#undef queue_pte_unpin
-#undef queue_set_ldt
-#endif
-
-
 /*
  * MULTICALL_flush_page_update_queue:
  *   This is a version of the flush which queues as part of a multicall.
@@ -123,13 +67,6 @@ void MULTICALL_flush_page_update_queue(void)
     spin_lock_irqsave(&update_lock, flags);
     if ( (_idx = idx) != 0 ) 
     {
-#if MMU_UPDATE_DEBUG > 1
-	    if (idx > 1)
-        printk("Flushing %d entries from pt update queue\n", idx);
-#endif
-#if MMU_UPDATE_DEBUG > 3
-        DEBUG_allow_pt_reads();
-#endif
         idx = 0;
         wmb(); /* Make sure index is cleared first to avoid double updates. */
         queue_multicall3(__HYPERVISOR_mmu_update, 
@@ -143,13 +80,6 @@ void MULTICALL_flush_page_update_queue(void)
 static inline void __flush_page_update_queue(void)
 {
     unsigned int _idx = idx;
-#if MMU_UPDATE_DEBUG > 1
-    if (idx > 1)
-    printk("Flushing %d entries from pt update queue\n", idx);
-#endif
-#if MMU_UPDATE_DEBUG > 3
-    DEBUG_allow_pt_reads();
-#endif
     idx = 0;
     wmb(); /* Make sure index is cleared first to avoid double updates. */
     if ( unlikely(HYPERVISOR_mmu_update(update_queue, _idx, NULL) < 0) )
@@ -183,9 +113,6 @@ void queue_l1_entry_update(pte_t *ptr, unsigned long val)
 {
     unsigned long flags;
     spin_lock_irqsave(&update_lock, flags);
-#if MMU_UPDATE_DEBUG > 3
-    DEBUG_disallow_pt_read((unsigned long)ptr);
-#endif
     update_queue[idx].ptr = virt_to_machine(ptr);
     update_queue[idx].val = val;
     increment_index();
@@ -303,9 +230,6 @@ void xen_l1_entry_update(pte_t *ptr, unsigned long val)
 {
     unsigned long flags;
     spin_lock_irqsave(&update_lock, flags);
-#if MMU_UPDATE_DEBUG > 3
-    DEBUG_disallow_pt_read((unsigned long)ptr);
-#endif
     update_queue[idx].ptr = virt_to_machine(ptr);
     update_queue[idx].val = val;
     increment_index_and_flush();

linux-2.6.10-rc2-xen-sparse/arch/xen/i386/mm/init.c

@@ -435,17 +435,24 @@ void zap_low_mappings (void)
 void __init zone_sizes_init(void)
 {
 	unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0};
-	unsigned int max_dma, high, low;
+	unsigned int /*max_dma,*/ high, low;
 	
-	max_dma = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
+	/*
+	 * XEN: Our notion of "DMA memory" is fake when running over Xen.
+	 * We simply put all RAM in the DMA zone so that those drivers which
+	 * needlessly specify GFP_DMA do not get starved of RAM unnecessarily.
+	 * Those drivers that *do* require lowmem are screwed anyway when
+	 * running over Xen!
+	 */
+	/*max_dma = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;*/
 	low = max_low_pfn;
 	high = highend_pfn;
 	
-	if (low < max_dma)
+	/*if (low < max_dma)*/
 		zones_size[ZONE_DMA] = low;
-	else {
-		zones_size[ZONE_DMA] = max_dma;
-		zones_size[ZONE_NORMAL] = low - max_dma;
+	/*else*/ {
+		/*zones_size[ZONE_DMA] = max_dma;*/
+		/*zones_size[ZONE_NORMAL] = low - max_dma;*/
 #ifdef CONFIG_HIGHMEM
 		zones_size[ZONE_HIGHMEM] = high - low;
 #endif
@@ -590,7 +597,7 @@ void __init paging_init(void)
 	HYPERVISOR_shared_info = (shared_info_t *)fix_to_virt(FIX_SHARED_INFO);
 	memset(empty_zero_page, 0, sizeof(empty_zero_page));
 
-#ifdef CONFIG_XEN_PRIVILEGED_GUEST
+#ifdef CONFIG_XEN_PHYSDEV_ACCESS
 	/* Setup mapping of lower 1st MB */
 	for (i = 0; i < NR_FIX_ISAMAPS; i++)
 		if (xen_start_info.flags & SIF_PRIVILEGED)

linux-2.6.10-rc2-xen-sparse/arch/xen/i386/mm/ioremap.c

@@ -45,6 +45,20 @@ void __init bt_iounmap(void *addr, unsigned long size)
 
 #else
 
+/*
+ * Does @address reside within a non-highmem page that is local to this virtual
+ * machine (i.e., not an I/O page, nor a memory page belonging to another VM).
+ * See the comment that accompanies pte_pfn() in pgtable-2level.h to understand
+ * why this works.
+ */
+static inline int is_local_lowmem(unsigned long address)
+{
+	extern unsigned long max_low_pfn;
+	unsigned long mfn = address >> PAGE_SHIFT;
+	unsigned long pfn = mfn_to_pfn(mfn);
+	return ((pfn < max_low_pfn) && (pfn_to_mfn(pfn) == mfn));
+}
+
 static inline void remap_area_pte(pte_t * pte, unsigned long address, unsigned long size,
 	unsigned long phys_addr, unsigned long flags)
 {
@@ -149,19 +163,18 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
 	if (!size || last_addr < phys_addr)
 		return NULL;
 
-	if (phys_addr >= 0x0 && last_addr < 0x100000)
-		return isa_bus_to_virt(phys_addr);
-
+#ifdef CONFIG_XEN_PRIVILEGED_GUEST
 	/*
 	 * Don't remap the low PCI/ISA area, it's always mapped..
 	 */
-	if (phys_addr >= 0xA0000 && last_addr < 0x100000)
-		return (void __iomem *) phys_to_virt(phys_addr);
+	if (phys_addr >= 0x0 && last_addr < 0x100000)
+		return isa_bus_to_virt(phys_addr);
+#endif
 
 	/*
 	 * Don't allow anybody to remap normal RAM that we're using..
 	 */
-	if (machine_to_phys(phys_addr) < virt_to_phys(high_memory)) {
+	if (is_local_lowmem(phys_addr)) {
 		char *t_addr, *t_end;
 		struct page *page;
 
@@ -228,7 +241,7 @@ void __iomem *ioremap_nocache (unsigned long phys_addr, unsigned long size)
 	/* Guaranteed to be > phys_addr, as per __ioremap() */
 	last_addr = phys_addr + size - 1;
 
-	if (machine_to_phys(last_addr) < virt_to_phys(high_memory)) { 
+	if (is_local_lowmem(last_addr)) { 
 		struct page *ppage = virt_to_page(bus_to_virt(phys_addr));
 		unsigned long npages;
 
@@ -255,17 +268,19 @@ void __iomem *ioremap_nocache (unsigned long phys_addr, unsigned long size)
 void iounmap(volatile void __iomem *addr)
 {
 	struct vm_struct *p;
-	if ((unsigned long)addr <= 0x100000)
-		return;
 	if ((void __force *) addr <= high_memory) 
 		return; 
+#ifdef CONFIG_XEN_PRIVILEGED_GUEST
+	if ((unsigned long) addr >= fix_to_virt(FIX_ISAMAP_BEGIN))
+		return;
+#endif
 	p = remove_vm_area((void *) (PAGE_MASK & (unsigned long __force) addr));
 	if (!p) { 
 		printk("__iounmap: bad address %p\n", addr);
 		return;
 	} 
 
-	if (p->flags && machine_to_phys(p->phys_addr) < virt_to_phys(high_memory)) { 
+	if (p->flags && is_local_lowmem(p->phys_addr)) { 
 		change_page_attr(virt_to_page(bus_to_virt(p->phys_addr)),
 				 p->size >> PAGE_SHIFT,
 				 PAGE_KERNEL); 				 
@@ -285,14 +300,13 @@ void __init *bt_ioremap(unsigned long phys_addr, unsigned long size)
 	if (!size || last_addr < phys_addr)
 		return NULL;
 
-	if (phys_addr >= 0x0 && last_addr < 0x100000)
-		return isa_bus_to_virt(phys_addr);
-
+#ifdef CONFIG_XEN_PRIVILEGED_GUEST
 	/*
 	 * Don't remap the low PCI/ISA area, it's always mapped..
 	 */
-	if (phys_addr >= 0xA0000 && last_addr < 0x100000)
-		return phys_to_virt(phys_addr);
+	if (phys_addr >= 0x0 && last_addr < 0x100000)
+		return isa_bus_to_virt(phys_addr);
+#endif
 
 	/*
 	 * Mappings have to be page-aligned
@@ -329,10 +343,12 @@ void __init bt_iounmap(void *addr, unsigned long size)
 	enum fixed_addresses idx;
 
 	virt_addr = (unsigned long)addr;
-	if (virt_addr < 0x100000)
-		return;
 	if (virt_addr < fix_to_virt(FIX_BTMAP_BEGIN))
 		return;
+#ifdef CONFIG_XEN_PRIVILEGED_GUEST
+	if (virt_addr >= fix_to_virt(FIX_ISAMAP_BEGIN))
+		return;
+#endif
 	offset = virt_addr & ~PAGE_MASK;
 	nrpages = PAGE_ALIGN(offset + size - 1) >> PAGE_SHIFT;
 

linux-2.6.10-rc2-xen-sparse/arch/xen/i386/mm/pgtable.c

@@ -195,7 +195,7 @@ void pte_ctor(void *pte, kmem_cache_t *cache, unsigned long unused)
 
 	clear_page(pte);
 	make_page_readonly(pte);
-	queue_pte_pin(virt_to_phys(pte));
+	queue_pte_pin(__pa(pte));
 	flush_page_update_queue();
 }
 
@@ -204,7 +204,7 @@ void pte_dtor(void *pte, kmem_cache_t *cache, unsigned long unused)
 	struct page *page = virt_to_page(pte);
 	ClearPageForeign(page);
 
-	queue_pte_unpin(virt_to_phys(pte));
+	queue_pte_unpin(__pa(pte));
 	make_page_writable(pte);
 	flush_page_update_queue();
 }