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Diffstat (limited to 'arch/arm64/include/asm/kvm_host.h')
-rw-r--r--arch/arm64/include/asm/kvm_host.h25
1 files changed, 24 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 8170c04fde91..36b8e97bf49e 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -76,6 +76,7 @@ static inline enum kvm_mode kvm_get_mode(void) { return KVM_MODE_NONE; };
DECLARE_STATIC_KEY_FALSE(userspace_irqchip_in_use);
extern unsigned int __ro_after_init kvm_sve_max_vl;
+extern unsigned int __ro_after_init kvm_host_sve_max_vl;
int __init kvm_arm_init_sve(void);
u32 __attribute_const__ kvm_target_cpu(void);
@@ -521,6 +522,20 @@ struct kvm_cpu_context {
u64 *vncr_array;
};
+struct cpu_sve_state {
+ __u64 zcr_el1;
+
+ /*
+ * Ordering is important since __sve_save_state/__sve_restore_state
+ * relies on it.
+ */
+ __u32 fpsr;
+ __u32 fpcr;
+
+ /* Must be SVE_VQ_BYTES (128 bit) aligned. */
+ __u8 sve_regs[];
+};
+
/*
* This structure is instantiated on a per-CPU basis, and contains
* data that is:
@@ -534,7 +549,15 @@ struct kvm_cpu_context {
*/
struct kvm_host_data {
struct kvm_cpu_context host_ctxt;
- struct user_fpsimd_state *fpsimd_state; /* hyp VA */
+
+ /*
+ * All pointers in this union are hyp VA.
+ * sve_state is only used in pKVM and if system_supports_sve().
+ */
+ union {
+ struct user_fpsimd_state *fpsimd_state;
+ struct cpu_sve_state *sve_state;
+ };
/* Ownership of the FP regs */
enum {