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| author | Ingo Molnar <mingo@kernel.org> | 2016-10-16 13:04:34 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-10-16 13:04:34 +0200 |
| commit | 4d69f155d58d0f75c5404ea502178b1943a04755 (patch) | |
| tree | fe5b7608f05f6951fce748ea1e93d942b52902bd /arch/x86/kernel/fpu | |
| parent | x86/fpu: Split old_fpu & new_fpu handling into separate functions (diff) | |
| parent | Linux 4.9-rc1 (diff) | |
| download | linux-4d69f155d58d0f75c5404ea502178b1943a04755.tar.xz linux-4d69f155d58d0f75c5404ea502178b1943a04755.zip | |
Merge tag 'v4.9-rc1' into x86/fpu, to resolve conflict
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/fpu')
| -rw-r--r-- | arch/x86/kernel/fpu/core.c | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/fpu/xstate.c | 5 |
2 files changed, 8 insertions, 1 deletions
diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c index 30f11ab6c07e..52f5684405c1 100644 --- a/arch/x86/kernel/fpu/core.c +++ b/arch/x86/kernel/fpu/core.c @@ -12,6 +12,7 @@ #include <asm/traps.h> #include <linux/hardirq.h> +#include <linux/pkeys.h> #define CREATE_TRACE_POINTS #include <asm/trace/fpu.h> @@ -474,6 +475,9 @@ static inline void copy_init_fpstate_to_fpregs(void) copy_kernel_to_fxregs(&init_fpstate.fxsave); else copy_kernel_to_fregs(&init_fpstate.fsave); + + if (boot_cpu_has(X86_FEATURE_OSPKE)) + copy_init_pkru_to_fpregs(); } /* diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index 76bc2a1a3a79..17ad31fd0a9f 100644 --- a/arch/x86/kernel/fpu/xstate.c +++ b/arch/x86/kernel/fpu/xstate.c @@ -5,6 +5,7 @@ */ #include <linux/compat.h> #include <linux/cpu.h> +#include <linux/mman.h> #include <linux/pkeys.h> #include <asm/fpu/api.h> @@ -866,9 +867,10 @@ const void *get_xsave_field_ptr(int xsave_state) return get_xsave_addr(&fpu->state.xsave, xsave_state); } +#ifdef CONFIG_ARCH_HAS_PKEYS + #define NR_VALID_PKRU_BITS (CONFIG_NR_PROTECTION_KEYS * 2) #define PKRU_VALID_MASK (NR_VALID_PKRU_BITS - 1) - /* * This will go out and modify PKRU register to set the access * rights for @pkey to @init_val. @@ -905,6 +907,7 @@ int arch_set_user_pkey_access(struct task_struct *tsk, int pkey, return 0; } +#endif /* ! CONFIG_ARCH_HAS_PKEYS */ /* * This is similar to user_regset_copyout(), but will not add offset to |