Author: andrew
Date: Fri Sep 8 08:02:06 2017
New Revision: 323309
URL: https://svnweb.freebsd.org/changeset/base/323309
Log:
Not all CPUs handle reading ID_AA64MMFR2_EL1 (e.g. qemu), disable it for now.
Sponsored by: DARPA, AFRL
Modified:
head/sys/arm64/arm64/identcpu.c
Modified: head/sys/arm64/arm64/identcpu.c
==============================================================================
--- head/sys/arm64/arm64/identcpu.c Fri Sep 8 06:57:11 2017
(r323308)
+++ head/sys/arm64/arm64/identcpu.c Fri Sep 8 08:02:06 2017
(r323309)
@@ -897,7 +897,11 @@ identify_cpu(void)
cpu_desc[cpu].id_aa64isar1 = READ_SPECIALREG(ID_AA64ISAR1_EL1);
cpu_desc[cpu].id_aa64mmfr0 = READ_SPECIALREG(ID_AA64MMFR0_EL1);
cpu_desc[cpu].id_aa64mmfr1 = READ_SPECIALREG(ID_AA64MMFR1_EL1);
+#ifdef NOTYET
cpu_desc[cpu].id_aa64mmfr2 = READ_SPECIALREG(ID_AA64MMFR2_EL1);
+#else
+ cpu_desc[cpu].id_aa64mmfr2 = 0;
+#endif
cpu_desc[cpu].id_aa64pfr0 = READ_SPECIALREG(ID_AA64PFR0_EL1);
cpu_desc[cpu].id_aa64pfr1 = READ_SPECIALREG(ID_AA64PFR1_EL1);
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