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| author | KP Singh <kpsingh@kernel.org> | 2023-02-27 07:05:41 +0100 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2023-02-27 19:02:47 +0100 |
| commit | e02b50ca442e88122e1302d4dbc1b71a4808c13f (patch) | |
| tree | 1b76a2583ed67d4d87e6fcccdc3104f428fa971f /drivers/pci/p2pdma.c | |
| parent | x86/speculation: Allow enabling STIBP with legacy IBRS (diff) | |
| download | linux-e02b50ca442e88122e1302d4dbc1b71a4808c13f.tar.xz linux-e02b50ca442e88122e1302d4dbc1b71a4808c13f.zip | |
Documentation/hw-vuln: Document the interaction between IBRS and STIBP
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
Diffstat (limited to 'drivers/pci/p2pdma.c')
0 files changed, 0 insertions, 0 deletions