linux

iv/linux

History

Kyle Huey 1c813ce030 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

2022-11-16 15:03:01 -08:00

bugs.c

x86/fpu: Replace the includes of fpu/internal.h

2021-10-20 15:27:29 +02:00

context.h

x86/fpu: Update XFD state where required

2021-10-26 10:53:02 +02:00

core.c

x86/fpu: Add a pkru argument to copy_uabi_from_kernel_to_xstate().

2022-11-16 15:03:01 -08:00

init.c

x86/fpu: Configure init_fpstate attributes orderly