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-rw-r--r--arch/arm/include/asm/arch_gicv3.h4
-rw-r--r--arch/arm/include/asm/kvm_emulate.h8
-rw-r--r--arch/arm/include/asm/kvm_host.h53
-rw-r--r--arch/arm/include/asm/kvm_hyp.h4
-rw-r--r--arch/arm/include/asm/kvm_mmu.h9
5 files changed, 67 insertions, 11 deletions
diff --git a/arch/arm/include/asm/arch_gicv3.h b/arch/arm/include/asm/arch_gicv3.h
index 0bd530702118..bdc87700def2 100644
--- a/arch/arm/include/asm/arch_gicv3.h
+++ b/arch/arm/include/asm/arch_gicv3.h
@@ -54,7 +54,7 @@
#define ICH_VTR __ACCESS_CP15(c12, 4, c11, 1)
#define ICH_MISR __ACCESS_CP15(c12, 4, c11, 2)
#define ICH_EISR __ACCESS_CP15(c12, 4, c11, 3)
-#define ICH_ELSR __ACCESS_CP15(c12, 4, c11, 5)
+#define ICH_ELRSR __ACCESS_CP15(c12, 4, c11, 5)
#define ICH_VMCR __ACCESS_CP15(c12, 4, c11, 7)
#define __LR0(x) __ACCESS_CP15(c12, 4, c12, x)
@@ -151,7 +151,7 @@ CPUIF_MAP(ICH_HCR, ICH_HCR_EL2)
CPUIF_MAP(ICH_VTR, ICH_VTR_EL2)
CPUIF_MAP(ICH_MISR, ICH_MISR_EL2)
CPUIF_MAP(ICH_EISR, ICH_EISR_EL2)
-CPUIF_MAP(ICH_ELSR, ICH_ELSR_EL2)
+CPUIF_MAP(ICH_ELRSR, ICH_ELRSR_EL2)
CPUIF_MAP(ICH_VMCR, ICH_VMCR_EL2)
CPUIF_MAP(ICH_AP0R3, ICH_AP0R3_EL2)
CPUIF_MAP(ICH_AP0R2, ICH_AP0R2_EL2)
diff --git a/arch/arm/include/asm/kvm_emulate.h b/arch/arm/include/asm/kvm_emulate.h
index 77121b713bef..8927cae7c966 100644
--- a/arch/arm/include/asm/kvm_emulate.h
+++ b/arch/arm/include/asm/kvm_emulate.h
@@ -265,6 +265,14 @@ static inline bool kvm_vcpu_dabt_isextabt(struct kvm_vcpu *vcpu)
}
}
+static inline bool kvm_is_write_fault(struct kvm_vcpu *vcpu)
+{
+ if (kvm_vcpu_trap_is_iabt(vcpu))
+ return false;
+
+ return kvm_vcpu_dabt_iswrite(vcpu);
+}
+
static inline u32 kvm_vcpu_hvc_get_imm(struct kvm_vcpu *vcpu)
{
return kvm_vcpu_get_hsr(vcpu) & HSR_HVC_IMM_MASK;
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index ca56537b61bc..8073267dc4a0 100644
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -26,6 +26,7 @@
#include <asm/kvm_asm.h>
#include <asm/kvm_mmio.h>
#include <asm/fpstate.h>
+#include <asm/smp_plat.h>
#include <kvm/arm_arch_timer.h>
#define __KVM_HAVE_ARCH_INTC_INITIALIZED
@@ -56,10 +57,13 @@ int __attribute_const__ kvm_target_cpu(void);
int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
void kvm_reset_coprocs(struct kvm_vcpu *vcpu);
-struct kvm_arch {
- /* VTTBR value associated with below pgd and vmid */
- u64 vttbr;
+struct kvm_vmid {
+ /* The VMID generation used for the virt. memory system */
+ u64 vmid_gen;
+ u32 vmid;
+};
+struct kvm_arch {
/* The last vcpu id that ran on each physical CPU */
int __percpu *last_vcpu_ran;
@@ -69,11 +73,11 @@ struct kvm_arch {
*/
/* The VMID generation used for the virt. memory system */
- u64 vmid_gen;
- u32 vmid;
+ struct kvm_vmid vmid;
/* Stage-2 page table */
pgd_t *pgd;
+ phys_addr_t pgd_phys;
/* Interrupt controller */
struct vgic_dist vgic;
@@ -147,6 +151,13 @@ struct kvm_cpu_context {
typedef struct kvm_cpu_context kvm_cpu_context_t;
+static inline void kvm_init_host_cpu_context(kvm_cpu_context_t *cpu_ctxt,
+ int cpu)
+{
+ /* The host's MPIDR is immutable, so let's set it up at boot time */
+ cpu_ctxt->cp15[c0_MPIDR] = cpu_logical_map(cpu);
+}
+
struct kvm_vcpu_arch {
struct kvm_cpu_context ctxt;
@@ -214,7 +225,35 @@ unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);
int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices);
int kvm_arm_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);
int kvm_arm_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);
-unsigned long kvm_call_hyp(void *hypfn, ...);
+
+unsigned long __kvm_call_hyp(void *hypfn, ...);
+
+/*
+ * The has_vhe() part doesn't get emitted, but is used for type-checking.
+ */
+#define kvm_call_hyp(f, ...) \
+ do { \
+ if (has_vhe()) { \
+ f(__VA_ARGS__); \
+ } else { \
+ __kvm_call_hyp(kvm_ksym_ref(f), ##__VA_ARGS__); \
+ } \
+ } while(0)
+
+#define kvm_call_hyp_ret(f, ...) \
+ ({ \
+ typeof(f(__VA_ARGS__)) ret; \
+ \
+ if (has_vhe()) { \
+ ret = f(__VA_ARGS__); \
+ } else { \
+ ret = __kvm_call_hyp(kvm_ksym_ref(f), \
+ ##__VA_ARGS__); \
+ } \
+ \
+ ret; \
+ })
+
void force_vm_exit(const cpumask_t *mask);
int __kvm_arm_vcpu_get_events(struct kvm_vcpu *vcpu,
struct kvm_vcpu_events *events);
@@ -265,7 +304,7 @@ static inline void __cpu_init_hyp_mode(phys_addr_t pgd_ptr,
* compliant with the PCS!).
*/
- kvm_call_hyp((void*)hyp_stack_ptr, vector_ptr, pgd_ptr);
+ __kvm_call_hyp((void*)hyp_stack_ptr, vector_ptr, pgd_ptr);
}
static inline void __cpu_init_stage2(void)
diff --git a/arch/arm/include/asm/kvm_hyp.h b/arch/arm/include/asm/kvm_hyp.h
index e93a0cac9add..87bcd18df8d5 100644
--- a/arch/arm/include/asm/kvm_hyp.h
+++ b/arch/arm/include/asm/kvm_hyp.h
@@ -40,6 +40,7 @@
#define TTBR1 __ACCESS_CP15_64(1, c2)
#define VTTBR __ACCESS_CP15_64(6, c2)
#define PAR __ACCESS_CP15_64(0, c7)
+#define CNTP_CVAL __ACCESS_CP15_64(2, c14)
#define CNTV_CVAL __ACCESS_CP15_64(3, c14)
#define CNTVOFF __ACCESS_CP15_64(4, c14)
@@ -85,6 +86,7 @@
#define TID_PRIV __ACCESS_CP15(c13, 0, c0, 4)
#define HTPIDR __ACCESS_CP15(c13, 4, c0, 2)
#define CNTKCTL __ACCESS_CP15(c14, 0, c1, 0)
+#define CNTP_CTL __ACCESS_CP15(c14, 0, c2, 1)
#define CNTV_CTL __ACCESS_CP15(c14, 0, c3, 1)
#define CNTHCTL __ACCESS_CP15(c14, 4, c1, 0)
@@ -94,6 +96,8 @@
#define read_sysreg_el0(r) read_sysreg(r##_el0)
#define write_sysreg_el0(v, r) write_sysreg(v, r##_el0)
+#define cntp_ctl_el0 CNTP_CTL
+#define cntp_cval_el0 CNTP_CVAL
#define cntv_ctl_el0 CNTV_CTL
#define cntv_cval_el0 CNTV_CVAL
#define cntvoff_el2 CNTVOFF
diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h
index 3a875fc1b63c..2de96a180166 100644
--- a/arch/arm/include/asm/kvm_mmu.h
+++ b/arch/arm/include/asm/kvm_mmu.h
@@ -421,9 +421,14 @@ static inline int hyp_map_aux_data(void)
static inline void kvm_set_ipa_limit(void) {}
-static inline bool kvm_cpu_has_cnp(void)
+static __always_inline u64 kvm_get_vttbr(struct kvm *kvm)
{
- return false;
+ struct kvm_vmid *vmid = &kvm->arch.vmid;
+ u64 vmid_field, baddr;
+
+ baddr = kvm->arch.pgd_phys;
+ vmid_field = (u64)vmid->vmid << VTTBR_VMID_SHIFT;
+ return kvm_phys_to_vttbr(baddr) | vmid_field;
}
#endif /* !__ASSEMBLY__ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-20 15:22:05 +0000