On Fri, Nov 19, 2021 at 03:27:57PM -0800, Michael Sterritt wrote:

Properly type the operands being passed to __put_user()/__get_user().
Otherwise, these routines truncate data for dependent instructions
(e.g., INSW) and only read/write one byte.

Tested: Tested by sending a string with `REP OUTSW` to a port and then
reading it back in with `REP INSW` on the same port. Previous behavior
was to only send and receive the first char of the size. For example,
word operations for "abcd" would only read/write "ac". With change, the
full string is now written and read back.

Fixes: f980f9c31a923 (x86/sev-es: Compile early handler code into kernel image)
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Marc Orr <redacted>
Reviewed-by: Peter Gonda <redacted>
Signed-off-by: Michael Sterritt <redacted>

Reviewed-by: Joerg Roedel <redacted>