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-rw-r--r--arch/x86/include/asm/fpu/api.h8
-rw-r--r--arch/x86/include/asm/fpu/internal.h15
2 files changed, 10 insertions, 13 deletions
diff --git a/arch/x86/include/asm/fpu/api.h b/arch/x86/include/asm/fpu/api.h
index 23bef08a8388..d2b8603a9c7e 100644
--- a/arch/x86/include/asm/fpu/api.h
+++ b/arch/x86/include/asm/fpu/api.h
@@ -12,6 +12,8 @@
#define _ASM_X86_FPU_API_H
#include <linux/bottom_half.h>
+#include <asm/fpu/types.h>
+
/*
* Use kernel_fpu_begin/end() if you intend to use FPU in kernel context. It
* disables preemption so be careful if you intend to use it for long periods
@@ -108,4 +110,10 @@ extern int cpu_has_xfeatures(u64 xfeatures_mask, const char **feature_name);
static inline void update_pasid(void) { }
+/* fpstate-related functions which are exported to KVM */
+extern void fpu_init_fpstate_user(struct fpu *fpu);
+
+/* KVM specific functions */
+extern void fpu_swap_kvm_fpu(struct fpu *save, struct fpu *rstor, u64 restore_mask);
+
#endif /* _ASM_X86_FPU_API_H */
diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h
index df57f1af3a4c..3ac55ba55782 100644
--- a/arch/x86/include/asm/fpu/internal.h
+++ b/arch/x86/include/asm/fpu/internal.h
@@ -74,14 +74,8 @@ static __always_inline __pure bool use_fxsr(void)
return static_cpu_has(X86_FEATURE_FXSR);
}
-/*
- * fpstate handling functions:
- */
-
extern union fpregs_state init_fpstate;
-
extern void fpstate_init_user(union fpregs_state *state);
-extern void fpu_init_fpstate_user(struct fpu *fpu);
#ifdef CONFIG_MATH_EMULATION
extern void fpstate_init_soft(struct swregs_state *soft);
@@ -381,12 +375,7 @@ static inline int os_xrstor_safe(struct xregs_state *xstate, u64 mask)
return err;
}
-extern void __restore_fpregs_from_fpstate(union fpregs_state *fpstate, u64 mask);
-
-static inline void restore_fpregs_from_fpstate(union fpregs_state *fpstate)
-{
- __restore_fpregs_from_fpstate(fpstate, xfeatures_mask_fpstate());
-}
+extern void restore_fpregs_from_fpstate(union fpregs_state *fpstate, u64 mask);
extern bool copy_fpstate_to_sigframe(void __user *buf, void __user *fp, int size);
@@ -467,7 +456,7 @@ static inline void fpregs_restore_userregs(void)
*/
mask = xfeatures_mask_restore_user() |
xfeatures_mask_supervisor();
- __restore_fpregs_from_fpstate(&fpu->state, mask);
+ restore_fpregs_from_fpstate(&fpu->state, mask);
fpregs_activate(fpu);
fpu->last_cpu = cpu;