diff options
| author | Kyle Huey <me@kylehuey.com> | 2022-11-15 15:09:28 -0800 |
|---|---|---|
| committer | Dave Hansen <dave.hansen@linux.intel.com> | 2022-11-16 15:03:01 -0800 |
| commit | 1c813ce0305571e1b2e4cc4acca451da9e6ad18f (patch) | |
| tree | a6e37a28cdb97054118ba1b864c2d24d5a1e5212 /arch/x86/kernel/fpu/core.c | |
| parent | 6a877d2450ace4f27c012519e5a1ae818f931983 (diff) | |
x86/fpu: Add a pkru argument to copy_uabi_from_kernel_to_xstate().
Both KVM (through KVM_SET_XSTATE) and ptrace (through PTRACE_SETREGSET
with NT_X86_XSTATE) ultimately call copy_uabi_from_kernel_to_xstate(),
but the canonical locations for the current PKRU value for KVM guests
and processes in a ptrace stop are different (in the kvm_vcpu_arch and
the thread_state structs respectively).
In preparation for eventually handling PKRU in
copy_uabi_to_xstate, pass in a pointer to the PKRU location.
Signed-off-by: Kyle Huey <me@kylehuey.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/all/20221115230932.7126-3-khuey%40kylehuey.com
Diffstat (limited to 'arch/x86/kernel/fpu/core.c')
| -rw-r--r-- | arch/x86/kernel/fpu/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c index 3b28c5b25e12..550157686323 100644 --- a/arch/x86/kernel/fpu/core.c +++ b/arch/x86/kernel/fpu/core.c @@ -406,7 +406,7 @@ int fpu_copy_uabi_to_guest_fpstate(struct fpu_guest *gfpu, const void *buf, if (ustate->xsave.header.xfeatures & ~xcr0) return -EINVAL; - ret = copy_uabi_from_kernel_to_xstate(kstate, ustate); + ret = copy_uabi_from_kernel_to_xstate(kstate, ustate, vpkru); if (ret) return ret; |