Author: andrew
Date: Mon Oct 22 15:18:49 2018
New Revision: 339594
URL: https://svnweb.freebsd.org/changeset/base/339594
Log:
Stop advertising ARMv8.3 Pointer Authentication
This needs firmware and kernel support before userspace can use it. Until
then don't advertise it's available.
MFC after: 3 days
Modified:
head/sys/arm64/arm64/identcpu.c
Modified: head/sys/arm64/arm64/identcpu.c
==============================================================================
--- head/sys/arm64/arm64/identcpu.c Mon Oct 22 15:06:14 2018
(r339593)
+++ head/sys/arm64/arm64/identcpu.c Mon Oct 22 15:18:49 2018
(r339594)
@@ -201,13 +201,13 @@ static struct mrs_field id_aa64isar0_fields[] = {
};
static struct mrs_field id_aa64isar1_fields[] = {
- MRS_FIELD(false, MRS_LOWER, ID_AA64ISAR1_GPI_SHIFT),
- MRS_FIELD(false, MRS_LOWER, ID_AA64ISAR1_GPA_SHIFT),
+ MRS_FIELD(false, MRS_EXACT, ID_AA64ISAR1_GPI_SHIFT),
+ MRS_FIELD(false, MRS_EXACT, ID_AA64ISAR1_GPA_SHIFT),
MRS_FIELD(false, MRS_LOWER, ID_AA64ISAR1_LRCPC_SHIFT),
MRS_FIELD(false, MRS_LOWER, ID_AA64ISAR1_FCMA_SHIFT),
MRS_FIELD(false, MRS_LOWER, ID_AA64ISAR1_JSCVT_SHIFT),
- MRS_FIELD(false, MRS_LOWER, ID_AA64ISAR1_API_SHIFT),
- MRS_FIELD(false, MRS_LOWER, ID_AA64ISAR1_APA_SHIFT),
+ MRS_FIELD(false, MRS_EXACT, ID_AA64ISAR1_API_SHIFT),
+ MRS_FIELD(false, MRS_EXACT, ID_AA64ISAR1_APA_SHIFT),
MRS_FIELD(false, MRS_LOWER, ID_AA64ISAR1_DPB_SHIFT),
MRS_FIELD_END,
};
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