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Diffstat (limited to 'arch/arm64/include/asm/kvm_host.h')
-rw-r--r--arch/arm64/include/asm/kvm_host.h61
1 files changed, 48 insertions, 13 deletions
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index af06ccb7ee34..5653d3553e3e 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -78,7 +78,7 @@ extern unsigned int __ro_after_init kvm_sve_max_vl;
int __init kvm_arm_init_sve(void);
u32 __attribute_const__ kvm_target_cpu(void);
-int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
+void kvm_reset_vcpu(struct kvm_vcpu *vcpu);
void kvm_arm_vcpu_destroy(struct kvm_vcpu *vcpu);
struct kvm_hyp_memcache {
@@ -158,6 +158,16 @@ struct kvm_s2_mmu {
phys_addr_t pgd_phys;
struct kvm_pgtable *pgt;
+ /*
+ * VTCR value used on the host. For a non-NV guest (or a NV
+ * guest that runs in a context where its own S2 doesn't
+ * apply), its T0SZ value reflects that of the IPA size.
+ *
+ * For a shadow S2 MMU, T0SZ reflects the PARange exposed to
+ * the guest.
+ */
+ u64 vtcr;
+
/* The last vcpu id that ran on each physical CPU */
int __percpu *last_vcpu_ran;
@@ -202,12 +212,34 @@ struct kvm_protected_vm {
struct kvm_hyp_memcache teardown_mc;
};
+struct kvm_mpidr_data {
+ u64 mpidr_mask;
+ DECLARE_FLEX_ARRAY(u16, cmpidr_to_idx);
+};
+
+static inline u16 kvm_mpidr_index(struct kvm_mpidr_data *data, u64 mpidr)
+{
+ unsigned long mask = data->mpidr_mask;
+ u64 aff = mpidr & MPIDR_HWID_BITMASK;
+ int nbits, bit, bit_idx = 0;
+ u16 index = 0;
+
+ /*
+ * If this looks like RISC-V's BEXT or x86's PEXT
+ * instructions, it isn't by accident.
+ */
+ nbits = fls(mask);
+ for_each_set_bit(bit, &mask, nbits) {
+ index |= (aff & BIT(bit)) >> (bit - bit_idx);
+ bit_idx++;
+ }
+
+ return index;
+}
+
struct kvm_arch {
struct kvm_s2_mmu mmu;
- /* VTCR_EL2 value for this VM */
- u64 vtcr;
-
/* Interrupt controller */
struct vgic_dist vgic;
@@ -239,15 +271,16 @@ struct kvm_arch {
#define KVM_ARCH_FLAG_VM_COUNTER_OFFSET 5
/* Timer PPIs made immutable */
#define KVM_ARCH_FLAG_TIMER_PPIS_IMMUTABLE 6
- /* SMCCC filter initialized for the VM */
-#define KVM_ARCH_FLAG_SMCCC_FILTER_CONFIGURED 7
/* Initial ID reg values loaded */
-#define KVM_ARCH_FLAG_ID_REGS_INITIALIZED 8
+#define KVM_ARCH_FLAG_ID_REGS_INITIALIZED 7
unsigned long flags;
/* VM-wide vCPU feature set */
DECLARE_BITMAP(vcpu_features, KVM_VCPU_MAX_FEATURES);
+ /* MPIDR to vcpu index mapping, optional */
+ struct kvm_mpidr_data *mpidr_data;
+
/*
* VM-wide PMU filter, implemented as a bitmap and big enough for
* up to 2^10 events (ARMv8.0) or 2^16 events (ARMv8.1+).
@@ -257,6 +290,9 @@ struct kvm_arch {
cpumask_var_t supported_cpus;
+ /* PMCR_EL0.N value for the guest */
+ u8 pmcr_n;
+
/* Hypercall features firmware registers' descriptor */
struct kvm_smccc_features smccc_feat;
struct maple_tree smccc_filter;
@@ -574,9 +610,6 @@ struct kvm_vcpu_arch {
/* Cache some mmu pages needed inside spinlock regions */
struct kvm_mmu_memory_cache mmu_page_cache;
- /* feature flags */
- DECLARE_BITMAP(features, KVM_VCPU_MAX_FEATURES);
-
/* Virtual SError ESR to restore when HCR_EL2.VSE is set */
u64 vsesr_el2;
@@ -1025,7 +1058,7 @@ int kvm_arm_pvtime_has_attr(struct kvm_vcpu *vcpu,
extern unsigned int __ro_after_init kvm_arm_vmid_bits;
int __init kvm_arm_vmid_alloc_init(void);
void __init kvm_arm_vmid_alloc_free(void);
-void kvm_arm_vmid_update(struct kvm_vmid *kvm_vmid);
+bool kvm_arm_vmid_update(struct kvm_vmid *kvm_vmid);
void kvm_arm_vmid_clear_active(void);
static inline void kvm_arm_pvtime_vcpu_init(struct kvm_vcpu_arch *vcpu_arch)
@@ -1078,6 +1111,8 @@ int kvm_vm_ioctl_mte_copy_tags(struct kvm *kvm,
struct kvm_arm_copy_mte_tags *copy_tags);
int kvm_vm_ioctl_set_counter_offset(struct kvm *kvm,
struct kvm_arm_counter_offset *offset);
+int kvm_vm_ioctl_get_reg_writable_masks(struct kvm *kvm,
+ struct reg_mask_range *range);
/* Guest/host FPSIMD coordination helpers */
int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu);
@@ -1109,8 +1144,8 @@ static inline bool kvm_set_pmuserenr(u64 val)
}
#endif
-void kvm_vcpu_load_sysregs_vhe(struct kvm_vcpu *vcpu);
-void kvm_vcpu_put_sysregs_vhe(struct kvm_vcpu *vcpu);
+void kvm_vcpu_load_vhe(struct kvm_vcpu *vcpu);
+void kvm_vcpu_put_vhe(struct kvm_vcpu *vcpu);
int __init kvm_set_ipa_limit(void);