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| author | Zeng Chi <zengchi@kylinos.cn> | 2026-09-21 18:24:42 +0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-09-22 08:36:16 -0700 |
| commit | 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d (patch) | |
| tree | 660d50d4139cb750fbde1ae3432452c20726c99d /arch/x86/tools/Makefile | |
| download | linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.tar.gz linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.zip | |
KVM: Don't pre-reserve xarray entries when storing empty/NULL attributesgrafted
Skip the xarray reservation loop when clearing all memory attributes, as
storing NULL only erases the entry and never needs to allocate, so no
reservation (and no cleanup of a failed one) is required in that case.
Suggested-by: Sean Christopherson <seanjc@google.com>
Cc: David Ballesteros <davimaba.v@proton.me>
Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com
[sean: split to separate patch]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/tools/Makefile')
| -rw-r--r-- | arch/x86/tools/Makefile | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/x86/tools/Makefile b/arch/x86/tools/Makefile new file mode 100644 index 000000000..39a183fff --- /dev/null +++ b/arch/x86/tools/Makefile @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: GPL-2.0 +PHONY += posttest + +ifneq ($(findstring 1, $(KBUILD_VERBOSE)),) + posttest_verbose = -v +else + posttest_verbose = +endif + +ifeq ($(CONFIG_64BIT),y) + posttest_64bit = -y +else + posttest_64bit = -n +endif + +reformatter = $(srctree)/arch/x86/tools/objdump_reformat.awk +chkobjdump = $(srctree)/arch/x86/tools/chkobjdump.awk + +quiet_cmd_posttest = TEST $@ + cmd_posttest = $(OBJDUMP) -d -j .text $(objtree)/vmlinux | $(AWK) -f $(reformatter) | $(obj)/insn_decoder_test $(posttest_64bit) $(posttest_verbose) + +quiet_cmd_sanitytest = TEST $@ + cmd_sanitytest = $(obj)/insn_sanity $(posttest_64bit) -m 1000000 + +posttest: $(obj)/insn_decoder_test vmlinux $(obj)/insn_sanity + $(call cmd,posttest) + $(call cmd,sanitytest) + +hostprogs += insn_decoder_test insn_sanity + +# -I needed for generated C source and C source which in the kernel tree. +HOSTCFLAGS_insn_decoder_test.o := -Wall -I$(srctree)/tools/arch/x86/lib/ -I$(srctree)/tools/arch/x86/include/ -I$(objtree)/arch/x86/lib/ + +HOSTCFLAGS_insn_sanity.o := -Wall -I$(srctree)/tools/arch/x86/lib/ -I$(srctree)/tools/arch/x86/include/ -I$(objtree)/arch/x86/lib/ + +# Dependencies are also needed. +$(obj)/insn_decoder_test.o: $(srctree)/tools/arch/x86/lib/insn.c $(srctree)/tools/arch/x86/lib/inat.c $(srctree)/tools/arch/x86/include/asm/inat_types.h $(srctree)/tools/arch/x86/include/asm/inat.h $(srctree)/tools/arch/x86/include/asm/insn.h $(objtree)/arch/x86/lib/inat-tables.c + +$(obj)/insn_sanity.o: $(srctree)/tools/arch/x86/lib/insn.c $(srctree)/tools/arch/x86/lib/inat.c $(srctree)/tools/arch/x86/include/asm/inat_types.h $(srctree)/tools/arch/x86/include/asm/inat.h $(srctree)/tools/arch/x86/include/asm/insn.h $(objtree)/arch/x86/lib/inat-tables.c + +HOST_EXTRACFLAGS += -I$(srctree)/tools/include -I$(srctree)/include/uapi \ + -I$(srctree)/arch/$(SUBARCH)/include/uapi + +hostprogs += relocs vdso2c +relocs-objs := relocs_32.o relocs_64.o relocs_common.o + +always-y := $(hostprogs) + +PHONY += $(hostprogs) +$(hostprogs): %: $(obj)/% + @: |