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46 lines
1.3 KiB
Bash
Executable file
46 lines
1.3 KiB
Bash
Executable file
#!/bin/sh -e
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MSR_FILE=/sys/module/msr/parameters/allow_writes
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if test -e "$MSR_FILE"; then
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echo on > $MSR_FILE
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else
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modprobe msr allow_writes=on
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fi
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if grep -E 'AMD Ryzen|AMD EPYC' /proc/cpuinfo > /dev/null;
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then
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if grep "cpu family[[:space:]]\{1,\}:[[:space:]]25" /proc/cpuinfo > /dev/null;
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then
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if grep "model[[:space:]]\{1,\}:[[:space:]]97" /proc/cpuinfo > /dev/null;
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then
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echo "Detected Zen4 CPU"
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wrmsr -a 0xc0011020 0x4400000000000
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wrmsr -a 0xc0011021 0x4000000000040
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wrmsr -a 0xc0011022 0x8680000401570000
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wrmsr -a 0xc001102b 0x2040cc10
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echo "MSR register values for Zen4 applied"
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else
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echo "Detected Zen3 CPU"
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wrmsr -a 0xc0011020 0x4480000000000
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wrmsr -a 0xc0011021 0x1c000200000040
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wrmsr -a 0xc0011022 0xc000000401570000
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wrmsr -a 0xc001102b 0x2000cc10
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echo "MSR register values for Zen3 applied"
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fi
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else
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echo "Detected Zen1/Zen2 CPU"
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wrmsr -a 0xc0011020 0
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wrmsr -a 0xc0011021 0x40
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wrmsr -a 0xc0011022 0x1510000
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wrmsr -a 0xc001102b 0x2000cc16
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echo "MSR register values for Zen1/Zen2 applied"
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fi
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elif grep "Intel" /proc/cpuinfo > /dev/null;
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then
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echo "Detected Intel CPU"
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wrmsr -a 0x1a4 0xf
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echo "MSR register values for Intel applied"
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else
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echo "No supported CPU detected"
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fi
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