@@ -20,5 +20,7 @@
#endif
DECLARE_KVM_HYP_CPU_FTR_REG(arm64_ftr_reg_ctrel0);
+DECLARE_KVM_HYP_CPU_FTR_REG(arm64_ftr_reg_id_aa64mmfr0_el1);
+DECLARE_KVM_HYP_CPU_FTR_REG(arm64_ftr_reg_id_aa64mmfr1_el1);
#endif
@@ -13,6 +13,8 @@
* Copies of the host's CPU features registers holding sanitized values.
*/
DEFINE_KVM_HYP_CPU_FTR_REG(arm64_ftr_reg_ctrel0);
+DEFINE_KVM_HYP_CPU_FTR_REG(arm64_ftr_reg_id_aa64mmfr0_el1);
+DEFINE_KVM_HYP_CPU_FTR_REG(arm64_ftr_reg_id_aa64mmfr1_el1);
/*
* nVHE copy of data structures tracking available CPU cores.
@@ -2784,6 +2784,8 @@ struct __ftr_reg_copy_entry {
struct arm64_ftr_reg *dst;
} hyp_ftr_regs[] __initdata = {
CPU_FTR_REG_HYP_COPY(SYS_CTR_EL0, arm64_ftr_reg_ctrel0),
+ CPU_FTR_REG_HYP_COPY(SYS_ID_AA64MMFR0_EL1, arm64_ftr_reg_id_aa64mmfr0_el1),
+ CPU_FTR_REG_HYP_COPY(SYS_ID_AA64MMFR1_EL1, arm64_ftr_reg_id_aa64mmfr1_el1),
};
void __init setup_kvm_el2_caps(void)
We will need to read sanitized values of mmfr{0,1}_el1 at EL2 soon, so add them to the list of copied variables. Acked-by: Will Deacon <will@kernel.org> Signed-off-by: Quentin Perret <qperret@google.com> --- arch/arm64/include/asm/kvm_cpufeature.h | 2 ++ arch/arm64/kvm/hyp/nvhe/hyp-smp.c | 2 ++ arch/arm64/kvm/sys_regs.c | 2 ++ 3 files changed, 6 insertions(+)