x86/platform/UV: Use efi_runtime_lock to serialise BIOS calls

Calls into UV firmware must be protected against concurrency, expose the
efi_runtime_lock to the UV platform, and use it to serialise UV BIOS
calls.

Signed-off-by: Hedi Berriche <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Reviewed-by: Ard Biesheuvel <[email protected]>
Reviewed-by: Russ Anderson <[email protected]>
Reviewed-by: Dimitri Sivanich <[email protected]>
Reviewed-by: Mike Travis <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Bhupesh Sharma <[email protected]>
Cc: Darren Hart <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: linux-efi <[email protected]>
Cc: [email protected]
Cc: [email protected] # v4.9+
Cc: Steve Wahl <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: x86-ml <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]

0 files changed, 0 insertions, 0 deletions