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Filename : x86_msr.sh
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#!/bin/sh
# SPDX-License-Identifier: LGPL-2.1

if [ $# -ne 1 ] ; then
	arch_x86_header_dir=tools/arch/x86/include/asm/
else
	arch_x86_header_dir=$1
fi

x86_msr_index=${arch_x86_header_dir}/msr-index.h

# Support all later, with some hash table, for now chop off
# Just the ones starting with 0x00000 so as to have a simple
# array.

printf "static const char *x86_MSRs[] = {\n"
regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MSR_([[:alnum:]][[:alnum:]_]+)[[:space:]]+(0x00000[[:xdigit:]]+)[[:space:]]*.*'
egrep $regex ${x86_msr_index} | egrep -v 'MSR_(ATOM|P[46]|IA32_(TSC_DEADLINE|UCODE_REV)|IDT_FCR4)' | \
	sed -r "s/$regex/\2 \1/g" | sort -n | \
	xargs printf "\t[%s] = \"%s\",\n"
printf "};\n\n"

# Remove MSR_K6_WHCR, clashes with MSR_LSTAR
regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MSR_([[:alnum:]][[:alnum:]_]+)[[:space:]]+(0xc0000[[:xdigit:]]+)[[:space:]]*.*'
printf "#define x86_64_specific_MSRs_offset "
egrep $regex ${x86_msr_index} | sed -r "s/$regex/\2/g" | sort -n | head -1
printf "static const char *x86_64_specific_MSRs[] = {\n"
egrep $regex ${x86_msr_index} | \
	sed -r "s/$regex/\2 \1/g" | egrep -vw 'K6_WHCR' | sort -n | \
	xargs printf "\t[%s - x86_64_specific_MSRs_offset] = \"%s\",\n"
printf "};\n\n"

regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MSR_([[:alnum:]][[:alnum:]_]+)[[:space:]]+(0xc0010[[:xdigit:]]+)[[:space:]]*.*'
printf "#define x86_AMD_V_KVM_MSRs_offset "
egrep $regex ${x86_msr_index} | sed -r "s/$regex/\2/g" | sort -n | head -1
printf "static const char *x86_AMD_V_KVM_MSRs[] = {\n"
egrep $regex ${x86_msr_index} | \
	sed -r "s/$regex/\2 \1/g" | sort -n | \
	xargs printf "\t[%s - x86_AMD_V_KVM_MSRs_offset] = \"%s\",\n"
printf "};\n"