How to disable retpoline?
I need to disable retpoline for a use case. I tried adding noretpoline to the boot parameter but it doesn't seem to work.
The output after adding noretpoline param:
$ cat /sys/devices/system/cpu/vulnerabilities/spectre_v2
Mitigation: Full generic retpoline, STIBP: disabled, RSB filling
Kernel: 4.18.0-58.el8.x86_64
kernel kernel-parameters
asked Jan 9 at 7:14
T K SourabhT K Sourabh
12
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I need to disable retpoline for a use case. I tried adding noretpoline to the boot parameter but it doesn't seem to work.
The output after adding noretpoline param:
$ cat /sys/devices/system/cpu/vulnerabilities/spectre_v2
Mitigation: Full generic retpoline, STIBP: disabled, RSB filling
Kernel: 4.18.0-58.el8.x86_64
kernel kernel-parameters
asked Jan 9 at 7:14
T K SourabhT K Sourabh
12
New contributor
T K Sourabh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I need to disable retpoline for a use case. I tried adding noretpoline to the boot parameter but it doesn't seem to work.
The output after adding noretpoline param:
$ cat /sys/devices/system/cpu/vulnerabilities/spectre_v2
Mitigation: Full generic retpoline, STIBP: disabled, RSB filling
Kernel: 4.18.0-58.el8.x86_64
kernel kernel-parameters
asked Jan 9 at 7:14
T K SourabhT K Sourabh
12
New contributor
T K Sourabh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I need to disable retpoline for a use case. I tried adding noretpoline to the boot parameter but it doesn't seem to work.
The output after adding noretpoline param:
$ cat /sys/devices/system/cpu/vulnerabilities/spectre_v2
Mitigation: Full generic retpoline, STIBP: disabled, RSB filling
Kernel: 4.18.0-58.el8.x86_64
kernel kernel-parameters
kernel kernel-parameters
asked Jan 9 at 7:14
T K SourabhT K Sourabh
12
New contributor
T K Sourabh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Jan 9 at 7:14
T K SourabhT K Sourabh
12
New contributor
T K Sourabh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Jan 9 at 7:14
T K SourabhT K Sourabh
12
New contributor
T K Sourabh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Jan 9 at 7:14
T K SourabhT K Sourabh
12
asked Jan 9 at 7:14
T K SourabhT K Sourabh
12
12
New contributor
T K Sourabh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
T K Sourabh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
T K Sourabh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
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1 Answer
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To disable retpoline, you need to disable the Spectre variant 2 mitigations using spectre_v2=off on the kernel command line. See the kernel’s list of parameters for details (that link is specifically for 4.18; for other versions, replace “v4.18” in the URL as appropriate).
answered 2 days ago
Stephen KittStephen Kitt
166k24368449
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1 Answer
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1 Answer
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active
oldest
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To disable retpoline, you need to disable the Spectre variant 2 mitigations using spectre_v2=off on the kernel command line. See the kernel’s list of parameters for details (that link is specifically for 4.18; for other versions, replace “v4.18” in the URL as appropriate).
answered 2 days ago
Stephen KittStephen Kitt
166k24368449
add a comment |
To disable retpoline, you need to disable the Spectre variant 2 mitigations using spectre_v2=off on the kernel command line. See the kernel’s list of parameters for details (that link is specifically for 4.18; for other versions, replace “v4.18” in the URL as appropriate).
answered 2 days ago
Stephen KittStephen Kitt
166k24368449
add a comment |
To disable retpoline, you need to disable the Spectre variant 2 mitigations using spectre_v2=off on the kernel command line. See the kernel’s list of parameters for details (that link is specifically for 4.18; for other versions, replace “v4.18” in the URL as appropriate).
answered 2 days ago
Stephen KittStephen Kitt
166k24368449
To disable retpoline, you need to disable the Spectre variant 2 mitigations using spectre_v2=off on the kernel command line. See the kernel’s list of parameters for details (that link is specifically for 4.18; for other versions, replace “v4.18” in the URL as appropriate).
answered 2 days ago
Stephen KittStephen Kitt
166k24368449
answered 2 days ago
Stephen KittStephen Kitt
166k24368449
answered 2 days ago
Stephen KittStephen Kitt
166k24368449
answered 2 days ago
Stephen KittStephen Kitt
166k24368449
166k24368449
add a comment |
add a comment |
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