[PATCH 1/4] KVM: arm64: Provide sanitized SYS_ID_AA64SMFR0_EL1 to nVHE

[Quentin Perret]

We will need a sanitized copy of SYS_ID_AA64SMFR0_EL1 from the nVHE EL2
code shortly, so make sure to provide it with a copy.

Signed-off-by: Quentin Perret <qperret at google.com>
---
 arch/arm64/include/asm/kvm_hyp.h   | 1 +
 arch/arm64/kvm/arm.c               | 1 +
 arch/arm64/kvm/hyp/nvhe/sys_regs.c | 1 +
 3 files changed, 3 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index 6797eafe7890..bdd9cf546d95 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -122,6 +122,7 @@ extern u64 kvm_nvhe_sym(id_aa64isar2_el1_sys_val);
 extern u64 kvm_nvhe_sym(id_aa64mmfr0_el1_sys_val);
 extern u64 kvm_nvhe_sym(id_aa64mmfr1_el1_sys_val);
 extern u64 kvm_nvhe_sym(id_aa64mmfr2_el1_sys_val);
+extern u64 kvm_nvhe_sym(id_aa64smfr0_el1_sys_val);
 
 extern unsigned long kvm_nvhe_sym(__icache_flags);
 extern unsigned int kvm_nvhe_sym(kvm_arm_vmid_bits);
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 9c5573bc4614..d9c6ec650b42 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -1887,6 +1887,7 @@ static void kvm_hyp_init_symbols(void)
 	kvm_nvhe_sym(id_aa64mmfr0_el1_sys_val) = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1);
 	kvm_nvhe_sym(id_aa64mmfr1_el1_sys_val) = read_sanitised_ftr_reg(SYS_ID_AA64MMFR1_EL1);
 	kvm_nvhe_sym(id_aa64mmfr2_el1_sys_val) = read_sanitised_ftr_reg(SYS_ID_AA64MMFR2_EL1);
+	kvm_nvhe_sym(id_aa64smfr0_el1_sys_val) = read_sanitised_ftr_reg(SYS_ID_AA64SMFR0_EL1);
 	kvm_nvhe_sym(__icache_flags) = __icache_flags;
 	kvm_nvhe_sym(kvm_arm_vmid_bits) = kvm_arm_vmid_bits;
 }
diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index 0f9ac25afdf4..08d2b004f4b7 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -26,6 +26,7 @@ u64 id_aa64isar2_el1_sys_val;
 u64 id_aa64mmfr0_el1_sys_val;
 u64 id_aa64mmfr1_el1_sys_val;
 u64 id_aa64mmfr2_el1_sys_val;
+u64 id_aa64smfr0_el1_sys_val;
 
 /*
  * Inject an unknown/undefined exception to an AArch64 guest while most of its
-- 
2.39.1.456.gfc5497dd1b-goog