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| author | Pawan Gupta <pawan.kumar.gupta@linux.intel.com> | 2025-08-14 10:20:42 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-09-11 17:21:46 +0200 |
| commit | 459274c77b37ac63b78c928b4b4e748d1f9d05c8 (patch) | |
| tree | a5270cd760477bbf24e36e6ff458976c036aae50 /drivers/base | |
| parent | d7ddc93392e4a7ffcccc86edf6ef3e64c778db52 (diff) | |
| download | linux-459274c77b37ac63b78c928b4b4e748d1f9d05c8.tar.gz linux-459274c77b37ac63b78c928b4b4e748d1f9d05c8.tar.bz2 linux-459274c77b37ac63b78c928b4b4e748d1f9d05c8.zip | |
x86/vmscape: Enable the mitigation
Commit 556c1ad666ad90c50ec8fccb930dd5046cfbecfb upstream.
Enable the previously added mitigation for VMscape. Add the cmdline
vmscape={off|ibpb|force} and sysfs reporting.
Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/cpu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 02870e70ed59..ee52b106a955 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -601,6 +601,7 @@ CPU_SHOW_VULN_FALLBACK(gds); CPU_SHOW_VULN_FALLBACK(reg_file_data_sampling); CPU_SHOW_VULN_FALLBACK(indirect_target_selection); CPU_SHOW_VULN_FALLBACK(tsa); +CPU_SHOW_VULN_FALLBACK(vmscape); static DEVICE_ATTR(meltdown, 0444, cpu_show_meltdown, NULL); static DEVICE_ATTR(spectre_v1, 0444, cpu_show_spectre_v1, NULL); @@ -618,6 +619,7 @@ static DEVICE_ATTR(gather_data_sampling, 0444, cpu_show_gds, NULL); static DEVICE_ATTR(reg_file_data_sampling, 0444, cpu_show_reg_file_data_sampling, NULL); static DEVICE_ATTR(indirect_target_selection, 0444, cpu_show_indirect_target_selection, NULL); static DEVICE_ATTR(tsa, 0444, cpu_show_tsa, NULL); +static DEVICE_ATTR(vmscape, 0444, cpu_show_vmscape, NULL); static struct attribute *cpu_root_vulnerabilities_attrs[] = { &dev_attr_meltdown.attr, @@ -636,6 +638,7 @@ static struct attribute *cpu_root_vulnerabilities_attrs[] = { &dev_attr_reg_file_data_sampling.attr, &dev_attr_indirect_target_selection.attr, &dev_attr_tsa.attr, + &dev_attr_vmscape.attr, NULL }; |