x86/bugs: Add a Transient Scheduler Attacks mitigation

Commit d8010d4ba4 upstream. Add the required features detection glue to bugs.c et all in order to support the TSA mitigation. Co-developed-by: Kim Phillips <kim.phillips@amd.com> Signed-off-by: Kim Phillips <kim.phillips@amd.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-10-18 19:12:56 +00:00 · 2024-09-11 10:53:08 +02:00 · 2024-09-11 10:53:08 +02:00 · 90293047df
commit 90293047df
parent 2b6a5fbe9d
15 changed files with 258 additions and 18 deletions
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
--- a/arch/x86/include/asm/cpu.h
+++ b/arch/x86/include/asm/cpu.h
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
--- a/arch/x86/include/asm/mwait.h
+++ b/arch/x86/include/asm/mwait.h
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/include/asm/nospec-branch.h
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
--- a/arch/x86/kernel/cpu/scattered.c
+++ b/arch/x86/kernel/cpu/scattered.c
--- a/arch/x86/kvm/svm/vmenter.S
+++ b/arch/x86/kvm/svm/vmenter.S
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h