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ANDROID: KVM: arm64: Provide sanitized SYS_ID_AA64SMFR0_EL1 to nVHE

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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.

Bug: 266405428
Bug: 265901597
Change-Id: Ief25545c8d79bf2913eb2a6f8302bbbc35bef8b0
Signed-off-by: Quentin Perret <qperret@google.com>
This commit is contained in:
Quentin Perret
2023-01-24 15:10:32 +00:00
parent ee921ef7b4
commit 6bf3e067a8
3 changed files with 3 additions and 0 deletions
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1
arch/arm64/include/asm/kvm_hyp.h
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@@ -126,6 +126,7 @@ 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);

1
arch/arm64/kvm/arm.c
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@@ -2009,6 +2009,7 @@ 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;
kvm_nvhe_sym(smccc_trng_available) = smccc_trng_available;

1
arch/arm64/kvm/hyp/nvhe/sys_regs.c
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@@ -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