x86/speculation/mmio: Add sysfs reporting for Processor MMIO Stale Data
stable inclusion from stable-v4.19.248 commit f2983fbba1cccac611d4966277f0336374fad0be category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I5D5RS CVE: CVE-2022-21123,CVE-2022-21125,CVE-2022-21166 -------------------------------- commit 8d50cdf8b8341770bc6367bce40c0c1bb0e1d5b3 upstream Add the sysfs reporting file for Processor MMIO Stale Data vulnerability. It exposes the vulnerability and mitigation state similar to the existing files for the other hardware vulnerabilities. Signed-off-by:Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Signed-off-by:
Borislav Petkov <bp@suse.de> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
Thadeu Lima de Souza Cascardo <cascardo@canonical.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Yipeng Zou <zouyipeng@huawei.com> Reviewed-by:
Zhang Jianhua <chris.zjh@huawei.com> Reviewed-by:
Liao Chang <liaochang1@huawei.com> Signed-off-by:
Yongqiang Liu <liuyongqiang13@huawei.com>
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- Documentation/ABI/testing/sysfs-devices-system-cpu 1 addition, 0 deletionsDocumentation/ABI/testing/sysfs-devices-system-cpu
- arch/x86/kernel/cpu/bugs.c 22 additions, 0 deletionsarch/x86/kernel/cpu/bugs.c
- drivers/base/cpu.c 8 additions, 0 deletionsdrivers/base/cpu.c
- include/linux/cpu.h 3 additions, 0 deletionsinclude/linux/cpu.h
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