From 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d Mon Sep 17 00:00:00 2001 From: Zeng Chi Date: Mon, 21 Sep 2026 18:24:42 +0800 Subject: KVM: Don't pre-reserve xarray entries when storing empty/NULL attributes 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 Cc: David Ballesteros Signed-off-by: Zeng Chi Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com [sean: split to separate patch] Signed-off-by: Sean Christopherson --- arch/powerpc/boot/install.sh | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100755 arch/powerpc/boot/install.sh (limited to 'arch/powerpc/boot/install.sh') diff --git a/arch/powerpc/boot/install.sh b/arch/powerpc/boot/install.sh new file mode 100755 index 000000000..c3df6c27c --- /dev/null +++ b/arch/powerpc/boot/install.sh @@ -0,0 +1,37 @@ +#!/bin/sh +# +# This file is subject to the terms and conditions of the GNU General Public +# License. See the file "COPYING" in the main directory of this archive +# for more details. +# +# Copyright (C) 1995 by Linus Torvalds +# +# Blatantly stolen from in arch/i386/boot/install.sh by Dave Hansen +# +# "make install" script for ppc64 architecture +# +# Arguments: +# $1 - kernel version +# $2 - kernel image file +# $3 - kernel map file +# $4 - default install path (blank if root directory) + +set -e + +# this should work for both the pSeries zImage and the iSeries vmlinux.sm +image_name=$(basename "$2") + + +echo "Warning: '${INSTALLKERNEL}' command not available... Copying" \ + "directly to $4/$image_name-$1" >&2 + +if [ -f "$4"/"$image_name"-"$1" ]; then + mv "$4"/"$image_name"-"$1" "$4"/"$image_name"-"$1".old +fi + +if [ -f "$4"/System.map-"$1" ]; then + mv "$4"/System.map-"$1" "$4"/System-"$1".old +fi + +cat "$2" > "$4"/"$image_name"-"$1" +cp "$3" "$4"/System.map-"$1" -- cgit v1.3.1