threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
22 lines
691 B
C
22 lines
691 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/device.h>
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#include <linux/cpu.h>
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#include <asm/facility.h>
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#include <asm/nospec-branch.h>
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ssize_t cpu_show_spectre_v1(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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return sprintf(buf, "Mitigation: __user pointer sanitization\n");
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}
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ssize_t cpu_show_spectre_v2(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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if (IS_ENABLED(CC_USING_EXPOLINE) && !nospec_disable)
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return sprintf(buf, "Mitigation: execute trampolines\n");
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if (__test_facility(82, S390_lowcore.alt_stfle_fac_list))
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return sprintf(buf, "Mitigation: limited branch prediction\n");
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return sprintf(buf, "Vulnerable\n");
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}
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