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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /arch/arm/include/asm/spectre.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/include/asm/spectre.h')
-rw-r--r--arch/arm/include/asm/spectre.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/arm/include/asm/spectre.h b/arch/arm/include/asm/spectre.h
new file mode 100644
index 000000000..85f9e538f
--- /dev/null
+++ b/arch/arm/include/asm/spectre.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __ASM_SPECTRE_H
+#define __ASM_SPECTRE_H
+
+enum {
+ SPECTRE_UNAFFECTED,
+ SPECTRE_MITIGATED,
+ SPECTRE_VULNERABLE,
+};
+
+enum {
+ __SPECTRE_V2_METHOD_BPIALL,
+ __SPECTRE_V2_METHOD_ICIALLU,
+ __SPECTRE_V2_METHOD_SMC,
+ __SPECTRE_V2_METHOD_HVC,
+ __SPECTRE_V2_METHOD_LOOP8,
+};
+
+enum {
+ SPECTRE_V2_METHOD_BPIALL = BIT(__SPECTRE_V2_METHOD_BPIALL),
+ SPECTRE_V2_METHOD_ICIALLU = BIT(__SPECTRE_V2_METHOD_ICIALLU),
+ SPECTRE_V2_METHOD_SMC = BIT(__SPECTRE_V2_METHOD_SMC),
+ SPECTRE_V2_METHOD_HVC = BIT(__SPECTRE_V2_METHOD_HVC),
+ SPECTRE_V2_METHOD_LOOP8 = BIT(__SPECTRE_V2_METHOD_LOOP8),
+};
+
+#ifdef CONFIG_GENERIC_CPU_VULNERABILITIES
+void spectre_v2_update_state(unsigned int state, unsigned int methods);
+#else
+static inline void spectre_v2_update_state(unsigned int state,
+ unsigned int methods)
+{}
+#endif
+
+int spectre_bhb_update_vectors(unsigned int method);
+
+#endif