diff options
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/fpu/api.h | 2 | ||||
| -rw-r--r-- | arch/x86/include/asm/fpu/types.h | 9 | ||||
| -rw-r--r-- | arch/x86/include/uapi/asm/prctl.h | 26 |
3 files changed, 25 insertions, 12 deletions
diff --git a/arch/x86/include/asm/fpu/api.h b/arch/x86/include/asm/fpu/api.h index c2767a6a387e..d8c222290e68 100644 --- a/arch/x86/include/asm/fpu/api.h +++ b/arch/x86/include/asm/fpu/api.h @@ -132,6 +132,8 @@ static inline void fpstate_free(struct fpu *fpu) { } /* fpstate-related functions which are exported to KVM */ extern void fpstate_clear_xstate_component(struct fpstate *fps, unsigned int xfeature); +extern inline u64 xstate_get_guest_group_perm(void); + /* KVM specific functions */ extern bool fpu_alloc_guest_fpstate(struct fpu_guest *gfpu); extern void fpu_free_guest_fpstate(struct fpu_guest *gfpu); diff --git a/arch/x86/include/asm/fpu/types.h b/arch/x86/include/asm/fpu/types.h index 3c06c82ab355..6ddf80637697 100644 --- a/arch/x86/include/asm/fpu/types.h +++ b/arch/x86/include/asm/fpu/types.h @@ -387,6 +387,8 @@ struct fpstate { /* @regs is dynamically sized! Don't add anything after @regs! */ } __aligned(64); +#define FPU_GUEST_PERM_LOCKED BIT_ULL(63) + struct fpu_state_perm { /* * @__state_perm: @@ -477,6 +479,13 @@ struct fpu { struct fpu_state_perm perm; /* + * @guest_perm: + * + * Permission related information for guest pseudo FPUs + */ + struct fpu_state_perm guest_perm; + + /* * @__fpstate: * * Initial in-memory storage for FPU registers which are saved in diff --git a/arch/x86/include/uapi/asm/prctl.h b/arch/x86/include/uapi/asm/prctl.h index 754a07856817..500b96e71f18 100644 --- a/arch/x86/include/uapi/asm/prctl.h +++ b/arch/x86/include/uapi/asm/prctl.h @@ -2,20 +2,22 @@ #ifndef _ASM_X86_PRCTL_H #define _ASM_X86_PRCTL_H -#define ARCH_SET_GS 0x1001 -#define ARCH_SET_FS 0x1002 -#define ARCH_GET_FS 0x1003 -#define ARCH_GET_GS 0x1004 +#define ARCH_SET_GS 0x1001 +#define ARCH_SET_FS 0x1002 +#define ARCH_GET_FS 0x1003 +#define ARCH_GET_GS 0x1004 -#define ARCH_GET_CPUID 0x1011 -#define ARCH_SET_CPUID 0x1012 +#define ARCH_GET_CPUID 0x1011 +#define ARCH_SET_CPUID 0x1012 -#define ARCH_GET_XCOMP_SUPP 0x1021 -#define ARCH_GET_XCOMP_PERM 0x1022 -#define ARCH_REQ_XCOMP_PERM 0x1023 +#define ARCH_GET_XCOMP_SUPP 0x1021 +#define ARCH_GET_XCOMP_PERM 0x1022 +#define ARCH_REQ_XCOMP_PERM 0x1023 +#define ARCH_GET_XCOMP_GUEST_PERM 0x1024 +#define ARCH_REQ_XCOMP_GUEST_PERM 0x1025 -#define ARCH_MAP_VDSO_X32 0x2001 -#define ARCH_MAP_VDSO_32 0x2002 -#define ARCH_MAP_VDSO_64 0x2003 +#define ARCH_MAP_VDSO_X32 0x2001 +#define ARCH_MAP_VDSO_32 0x2002 +#define ARCH_MAP_VDSO_64 0x2003 #endif /* _ASM_X86_PRCTL_H */ |