diff options
| author | KP Singh <kpsingh@kernel.org> | 2023-02-27 07:05:41 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-11 16:31:51 +0100 |
| commit | dfd3801d53acd1db630bbc5b48b224bed4c72fdd (patch) | |
| tree | e534929bb532643e97bcabe2edec93e722ec0125 /kernel | |
| parent | 10543fb3c9b019e45e2045f08f46fdf526add593 (diff) | |
Documentation/hw-vuln: Document the interaction between IBRS and STIBP
commit e02b50ca442e88122e1302d4dbc1b71a4808c13f upstream.
Explain why STIBP is needed with legacy IBRS as currently implemented
(KERNEL_IBRS) and why STIBP is not needed when enhanced IBRS is enabled.
Fixes: 7c693f54c873 ("x86/speculation: Add spectre_v2=ibrs option to support Kernel IBRS")
Signed-off-by: KP Singh <kpsingh@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230227060541.1939092-2-kpsingh@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions