xen: move include/asm-* to arch/*/include/asm

This avoid the need to create the symbolic link "include/asm".

Whenever a comment refer to an "asm" headers, this patch avoid
spelling the arch when not needed to avoid some code churn.

One unrelated change is to sort entries in MAINTAINERS for "INTEL(R)
VT FOR X86 (VT-X)"

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Paul Durrant <paul@xen.org>
Acked-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Julien Grall <jgrall@amazon.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>

.gitignore

@@ -314,6 +314,7 @@ xen/arch/x86/boot/*.lnk
 xen/arch/x86/efi.lds
 xen/arch/x86/efi/check.efi
 xen/arch/x86/efi/mkreloc
+xen/arch/x86/include/asm/asm-macros.h
 xen/arch/*/xen.lds
 xen/arch/*/efi/boot.c
 xen/arch/*/efi/compat.c
@@ -321,12 +322,10 @@ xen/arch/*/efi/ebmalloc.c
 xen/arch/*/efi/efi.h
 xen/arch/*/efi/pe.c
 xen/arch/*/efi/runtime.c
+xen/arch/*/include/asm/asm-offsets.h
 xen/common/config_data.S
 xen/common/config.gz
 xen/include/headers*.chk
-xen/include/asm
-xen/include/asm-*/asm-offsets.h
-xen/include/asm-x86/asm-macros.h
 xen/include/compat/*
 xen/include/config/
 xen/include/generated/

MAINTAINERS

@@ -245,7 +245,6 @@ F:	xen/drivers/char/omap-uart.c
 F:	xen/drivers/char/pl011.c
 F:	xen/drivers/char/scif-uart.c
 F:	xen/drivers/passthrough/arm/
-F:	xen/include/asm-arm/
 F:	xen/include/public/arch-arm/
 F:	xen/include/public/arch-arm.h
 
@@ -290,10 +289,10 @@ EFI
 M:	Jan Beulich <jbeulich@suse.com>
 S:	Supported
 F:	xen/arch/x86/efi/
+F:	xen/arch/x86/include/asm/efi*.h
+F:	xen/arch/x86/include/asm/x86_*/efi*.h
 F:	xen/common/efi/
 F:	xen/include/efi/
-F:	xen/include/asm-x86/efi*.h
-F:	xen/include/asm-x86/x86_*/efi*.h
 
 GDBSX DEBUGGER
 M:	Elena Ufimtseva <elena.ufimtseva@oracle.com>
@@ -319,8 +318,8 @@ F:	xen/include/xen/hypfs.h
 INTEL(R) TRUSTED EXECUTION TECHNOLOGY (TXT)
 R:	Lukasz Hawrylko <lukasz.hawrylko@linux.intel.com>
 S:	Odd Fixes
+F:	xen/arch/x86/include/asm/tboot.h
 F:	xen/arch/x86/tboot.c
-F:	xen/include/asm-x86/tboot.h
 
 INTEL(R) VT FOR DIRECTED I/O (VT-D)
 M:	Kevin Tian <kevin.tian@intel.com>
@@ -331,10 +330,10 @@ INTEL(R) VT FOR X86 (VT-X)
 M:	Jun Nakajima <jun.nakajima@intel.com>
 M:	Kevin Tian <kevin.tian@intel.com>
 S:	Supported
-F:	xen/arch/x86/hvm/vmx/
-F:	xen/arch/x86/mm/p2m-ept.c
-F:	xen/include/asm-x86/hvm/vmx/
 F:	xen/arch/x86/cpu/vpmu_intel.c
+F:	xen/arch/x86/hvm/vmx/
+F:	xen/arch/x86/include/asm/hvm/vmx/
+F:	xen/arch/x86/mm/p2m-ept.c
 
 IOMMU VENDOR INDEPENDENT CODE
 M:	Jan Beulich <jbeulich@suse.com>
@@ -401,10 +400,10 @@ M:	Ross Lagerwall <ross.lagerwall@citrix.com>
 S:	Supported
 F:	docs/misc/livepatch.pandoc
 F:	tools/misc/xen-livepatch.c
+F:	xen/arch/*/include/asm/livepatch.h
 F:	xen/arch/*/livepatch*
 F:	xen/arch/*/*/livepatch*
 F:	xen/common/livepatch*
-F:	xen/include/asm-*/livepatch.h
 F:	xen/include/xen/livepatch*
 F:	xen/test/livepatch/*
 
@@ -473,7 +472,6 @@ R:	Connor Davis <connojdavis@gmail.com>
 S:	Supported
 F:	config/riscv64.mk
 F:	xen/arch/riscv/
-F:	xen/include/asm-riscv/
 
 RTDS SCHEDULER
 M:	Dario Faggioli <dfaggioli@suse.com>
@@ -502,8 +500,8 @@ F:	stubdom/
 TEE MEDIATORS
 M:	Volodymyr Babchuk <volodymyr_babchuk@epam.com>
 S:	Supported
+F:	xen/arch/arm/include/asm/tee
 F:	xen/arch/arm/tee/
-F:	xen/include/asm-arm/tee
 
 TOOLSTACK
 M:	Wei Liu <wl@xen.org>
@@ -531,6 +529,8 @@ F:	tools/misc/xen-access.c
 F:	xen/arch/*/monitor.c
 F:	xen/arch/*/vm_event.c
 F:	xen/arch/arm/mem_access.c
+F:	xen/arch/x86/include/asm/hvm/monitor.h
+F:	xen/arch/x86/include/asm/hvm/vm_event.h
 F:	xen/arch/x86/mm/mem_access.c
 F:	xen/arch/x86/hvm/monitor.c
 F:	xen/arch/x86/hvm/vm_event.c
@@ -540,8 +540,6 @@ F:	xen/common/vm_event.c
 F:	xen/include/*/mem_access.h
 F:	xen/include/*/monitor.h
 F:	xen/include/*/vm_event.h
-F:	xen/include/asm-x86/hvm/monitor.h
-F:	xen/include/asm-x86/hvm/vm_event.h
 
 VPCI
 M:	Roger Pau Monné <roger.pau@citrix.com>
@@ -567,7 +565,6 @@ R:	Wei Liu <wl@xen.org>
 S:	Supported
 L:	xen-devel@lists.xenproject.org
 F:	xen/arch/x86/
-F:	xen/include/asm-x86/
 F:	xen/include/public/arch-x86/
 F:	xen/include/xen/lib/x86
 F:	xen/lib/x86
@@ -587,10 +584,10 @@ F:	xen/arch/x86/hvm/emulate.c
 F:	xen/arch/x86/hvm/intercept.c
 F:	xen/arch/x86/hvm/io.c
 F:	xen/arch/x86/hvm/ioreq.c
-F:	xen/include/asm-x86/hvm/emulate.h
-F:	xen/include/asm-x86/hvm/io.h
-F:	xen/include/asm-x86/hvm/ioreq.h
-F:	xen/include/asm-x86/ioreq.h
+F:	xen/arch/x86/include/asm/hvm/emulate.h
+F:	xen/arch/x86/include/asm/hvm/io.h
+F:	xen/arch/x86/include/asm/hvm/ioreq.h
+F:	xen/arch/x86/include/asm/ioreq.h
 
 X86 MEMORY MANAGEMENT
 M:	Jan Beulich <jbeulich@suse.com>
@@ -622,10 +619,10 @@ M:	Wei Liu <wl@xen.org>
 S:	Supported
 F:	xen/arch/x86/guest/hyperv/
 F:	xen/arch/x86/hvm/viridian/
-F:	xen/include/asm-x86/guest/hyperv.h
-F:	xen/include/asm-x86/guest/hyperv-hcall.h
-F:	xen/include/asm-x86/guest/hyperv-tlfs.h
-F:	xen/include/asm-x86/hvm/viridian.h
+F:	xen/arch/x86/include/asm/guest/hyperv.h
+F:	xen/arch/x86/include/asm/guest/hyperv-hcall.h
+F:	xen/arch/x86/include/asm/guest/hyperv-tlfs.h
+F:	xen/arch/x86/include/asm/hvm/viridian.h
 
 XENSTORE
 M:	Wei Liu <wl@xen.org>

tools/include/Makefile

@@ -30,7 +30,7 @@ xen-dir:
 	ln -s $(XEN_ROOT)/xen/include/acpi/platform acpi/
 	ln -s $(XEN_ROOT)/xen/include/acpi/ac*.h acpi/
 ifeq ($(CONFIG_X86),y)
-	ln -s $(XEN_ROOT)/xen/include/asm-x86 xen/asm
+	ln -s $(XEN_ROOT)/xen/arch/x86/include/asm xen/
 	mkdir -p xen/lib/x86
 	ln -s $(filter-out %autogen.h,$(wildcard $(XEN_ROOT)/xen/include/xen/lib/x86/*.h)) xen/lib/x86/
 	ln -s $(XEN_ROOT)/xen/include/xen/lib/x86/Makefile xen/lib/x86/

tools/misc/xen-access.c

@@ -56,11 +56,11 @@
 #define ERROR(a, b...) fprintf(stderr, a "\n", ## b)
 #define PERROR(a, b...) fprintf(stderr, a ": %s\n", ## b, strerror(errno))
 
-/* From xen/include/asm-x86/processor.h */
+/* From xen/arch/x86/include/asm/processor.h */
 #define X86_TRAP_DEBUG  1
 #define X86_TRAP_INT3   3
 
-/* From xen/include/asm-x86/x86-defns.h */
+/* From xen/arch/x86/include/asm/x86-defns.h */
 #define X86_CR4_PGE        0x00000080 /* enable global pages */
 
 typedef struct vm_event {

tools/tests/vhpet/Makefile

@@ -32,7 +32,7 @@ distclean: clean
 .PHONY: install
 install:
 
-hpet.h: $(XEN_ROOT)/xen/include/asm-x86/hpet.h
+hpet.h: $(XEN_ROOT)/xen/arch/x86/include/asm/hpet.h
 	cp $< $@
 
 hpet.c: $(XEN_ROOT)/xen/arch/x86/hvm/hpet.c

xen/Makefile

@@ -166,7 +166,7 @@ ifeq ($(TARGET_ARCH),x86)
 t1 = $(call as-insn,$(CC),".L0: .L1: .skip (.L1 - .L0)",,-no-integrated-as)
 
 # Check whether clang asm()-s support .include.
-t2 = $(call as-insn,$(CC) -I$(BASEDIR)/include,".include \"asm-x86/asm-defns.h\"",,-no-integrated-as)
+t2 = $(call as-insn,$(CC) -I$(BASEDIR)/arch/x86/include,".include \"asm/asm-defns.h\"",,-no-integrated-as)
 
 # Check whether clang keeps .macro-s between asm()-s:
 # https://bugs.llvm.org/show_bug.cgi?id=36110
@@ -382,7 +382,7 @@ _clean: delete-unfresh-files
 		-o -name ".*.o.tmp" -o -name "*~" -o -name "core" \
 		-o -name "*.gcno" -o -name ".*.cmd" -o -name "lib.a" \) -exec rm -f {} \;
 	rm -f include/asm $(TARGET) $(TARGET).gz $(TARGET).efi $(TARGET).efi.map $(TARGET)-syms $(TARGET)-syms.map *~ core
-	rm -f asm-offsets.s include/asm-*/asm-offsets.h
+	rm -f asm-offsets.s arch/*/include/asm/asm-offsets.h
 	rm -f .banner .allconfig.tmp
 
 .PHONY: _distclean
@@ -396,7 +396,6 @@ $(TARGET).gz: $(TARGET)
 $(TARGET): delete-unfresh-files
 	$(MAKE) -C tools
 	$(MAKE) -f $(BASEDIR)/Rules.mk include/xen/compile.h
-	[ -e include/asm ] || ln -sf asm-$(TARGET_ARCH) include/asm
 	[ -e arch/$(TARGET_ARCH)/efi ] && for f in $$(cd common/efi; echo *.[ch]); \
 		do test -r arch/$(TARGET_ARCH)/efi/$$f || \
 		   ln -nsf ../../../common/efi/$$f arch/$(TARGET_ARCH)/efi/; \
@@ -404,7 +403,7 @@ $(TARGET): delete-unfresh-files
 		true
 	$(MAKE) -f $(BASEDIR)/Rules.mk -C include
 	$(MAKE) -f $(BASEDIR)/Rules.mk -C arch/$(TARGET_ARCH) include
-	$(MAKE) -f $(BASEDIR)/Rules.mk include/asm-$(TARGET_ARCH)/asm-offsets.h
+	$(MAKE) -f $(BASEDIR)/Rules.mk arch/$(TARGET_ARCH)/include/asm/asm-offsets.h
 	$(MAKE) -f $(BASEDIR)/Rules.mk -C arch/$(TARGET_ARCH) $@
 
 # drivers/char/console.o contains static banner/compile info. Blow it away.
@@ -450,7 +449,7 @@ asm-offsets.s: arch/$(TARGET_ARCH)/$(TARGET_SUBARCH)/asm-offsets.c
 	$(CC) $(call cpp_flags,$(c_flags)) -S -g0 -o $@.new -MQ $@ $<
 	$(call move-if-changed,$@.new,$@)
 
-include/asm-$(TARGET_ARCH)/asm-offsets.h: asm-offsets.s
+arch/$(TARGET_ARCH)/include/asm/asm-offsets.h: asm-offsets.s
 	@(set -e; \
 	  echo "/*"; \
 	  echo " * DO NOT MODIFY."; \
@@ -468,8 +467,8 @@ include/asm-$(TARGET_ARCH)/asm-offsets.h: asm-offsets.s
 
 SUBDIRS = xsm arch/$(TARGET_ARCH) common drivers lib test
 define all_sources
-    ( find include/asm-$(TARGET_ARCH) -name '*.h' -print; \
-      find include -name 'asm-*' -prune -o -name '*.h' -print; \
+    ( find arch/$(TARGET_ARCH)/include -name '*.h' -print; \
+      find include -name '*.h' -print; \
       find $(SUBDIRS) -name '*.[chS]' -print )
 endef
 

xen/arch/arm/README.LinuxPrimitives

@@ -8,19 +8,19 @@ arm64:
 
 bitops: last sync @ v3.16-rc6 (last commit: 8715466b6027)
 
-linux/arch/arm64/include/asm/bitops.h   xen/include/asm-arm/arm64/bitops.h
+linux/arch/arm64/include/asm/bitops.h   xen/arch/arm/include/asm/arm64/bitops.h
 
 ---------------------------------------------------------------------
 
 cmpxchg: last sync @ v3.16-rc6 (last commit: e1dfda9ced9b)
 
-linux/arch/arm64/include/asm/cmpxchg.h  xen/include/asm-arm/arm64/cmpxchg.h
+linux/arch/arm64/include/asm/cmpxchg.h  xen/arch/arm/include/asm/arm64/cmpxchg.h
 
 ---------------------------------------------------------------------
 
 atomics: last sync @ v3.16-rc6 (last commit: 8715466b6027)
 
-linux/arch/arm64/include/asm/atomic.h   xen/include/asm-arm/arm64/atomic.h
+linux/arch/arm64/include/asm/atomic.h   xen/arch/arm/include/asm/arm64/atomic.h
 
 The following functions were taken from Linux:
     atomic_add(), atomic_add_return(), atomic_sub(), atomic_sub_return(),
@@ -76,13 +76,13 @@ diff -u ../linux/arch/arm/lib/findbit.S xen/arch/arm/arm32/lib/findbit.S
 
 cmpxchg: last sync @ v3.16-rc6 (last commit: c32ffce0f66e)
 
-linux/arch/arm/include/asm/cmpxchg.h    xen/include/asm-arm/arm32/cmpxchg.h
+linux/arch/arm/include/asm/cmpxchg.h    xen/arch/arm/include/asm/arm32/cmpxchg.h
 
 ---------------------------------------------------------------------
 
 atomics: last sync @ v3.16-rc6 (last commit: 030d0178bdbd)
 
-linux/arch/arm/include/asm/atomic.h     xen/include/asm-arm/arm32/atomic.h
+linux/arch/arm/include/asm/atomic.h     xen/arch/arm/include/asm/arm32/atomic.h
 
 The following functions were taken from Linux:
     atomic_add(), atomic_add_return(), atomic_sub(), atomic_sub_return(),

xen/arch/arm/arch.mk

@@ -2,6 +2,7 @@
 # arm-specific definitions
 
 CFLAGS += -I$(BASEDIR)/include
+CFLAGS += -I$(BASEDIR)/arch/$(TARGET_ARCH)/include
 
 $(call cc-options-add,CFLAGS,CC,$(EMBEDDED_EXTRA_CFLAGS))
 $(call cc-option-add,CFLAGS,CC,-Wnested-externs)

xen/arch/arm/arm32/head.S

@@ -599,7 +599,7 @@ remove_identity_mapping:
         strd  r2, r3, [r0, r1]
 
 identity_mapping_removed:
-        /* See asm-arm/arm32/flushtlb.h for the explanation of the sequence. */
+        /* See asm/arm32/flushtlb.h for the explanation of the sequence. */
         dsb   nshst
         mcr   CP32(r0, TLBIALLH)
         dsb   nsh

xen/arch/arm/arm64/head.S

@@ -737,7 +737,7 @@ remove_identity_mapping:
         str   xzr, [x0, x1, lsl #3]
 
 identity_mapping_removed:
-        /* See asm-arm/arm64/flushtlb.h for the explanation of the sequence. */
+        /* See asm/arm64/flushtlb.h for the explanation of the sequence. */
         dsb   nshst
         tlbi  alle2
         dsb   nsh