[PATCH 0/3] x86: paravirt related cleanup

From: Juergen Gross
Date: Thu Aug 10 2017 - 08:53:07 EST


Cleanup special cases of paravirt patching:

- Xen doesn't need a custom patching function, it can use
paravirt_patch_default()

- Remove lguest completely from the tree. A LKML mail asking for any
users 3 months ago did not reveal any need for keeping lguest [1].

- Remove vsmp paravirt support. This is more kind of a RFC. The code
suggests paravirt support in vsmp might be optional and there is no
documentation (at least I found none) to support its need.

In case the patches make it to the tree there is quite some potential
for further simplification of paravirt stuff. Especially most of the
pv operations can be put under the CONFIG_XEN_PV umbrella.

Juergen Gross (3):
paravirt,xen: remove xen_patch()
x86/lguest: remove lguest support
x86/vsmp: remove vsmp paravirt support

MAINTAINERS | 11 -
arch/x86/Kbuild | 3 -
arch/x86/Kconfig | 3 -
arch/x86/include/asm/lguest.h | 91 -
arch/x86/include/asm/lguest_hcall.h | 74 -
arch/x86/include/asm/processor.h | 2 +-
arch/x86/include/uapi/asm/bootparam.h | 2 +-
arch/x86/kernel/asm-offsets_32.c | 20 -
arch/x86/kernel/head_32.S | 2 -
arch/x86/kernel/platform-quirks.c | 1 -
arch/x86/kernel/vsmp_64.c | 69 +-
arch/x86/kvm/Kconfig | 1 -
arch/x86/lguest/Kconfig | 14 -
arch/x86/lguest/Makefile | 2 -
arch/x86/lguest/boot.c | 1558 ---------------
arch/x86/lguest/head_32.S | 192 --
arch/x86/xen/enlighten_pv.c | 59 +-
drivers/Makefile | 1 -
drivers/block/Kconfig | 2 +-
drivers/char/Kconfig | 2 +-
drivers/char/virtio_console.c | 2 +-
drivers/lguest/Kconfig | 13 -
drivers/lguest/Makefile | 26 -
drivers/lguest/README | 47 -
drivers/lguest/core.c | 398 ----
drivers/lguest/hypercalls.c | 304 ---
drivers/lguest/interrupts_and_traps.c | 706 -------
drivers/lguest/lg.h | 258 ---
drivers/lguest/lguest_user.c | 446 -----
drivers/lguest/page_tables.c | 1239 ------------
drivers/lguest/segments.c | 228 ---
drivers/lguest/x86/core.c | 724 -------
drivers/lguest/x86/switcher_32.S | 388 ----
drivers/net/Kconfig | 2 +-
drivers/tty/hvc/Kconfig | 2 +-
drivers/virtio/Kconfig | 4 +-
include/linux/lguest.h | 73 -
include/linux/lguest_launcher.h | 44 -
include/uapi/linux/virtio_ring.h | 4 +-
tools/Makefile | 11 +-
tools/lguest/.gitignore | 2 -
tools/lguest/Makefile | 14 -
tools/lguest/extract | 58 -
tools/lguest/lguest.c | 3420 ---------------------------------
tools/lguest/lguest.txt | 125 --
45 files changed, 18 insertions(+), 10629 deletions(-)
delete mode 100644 arch/x86/include/asm/lguest.h
delete mode 100644 arch/x86/include/asm/lguest_hcall.h
delete mode 100644 arch/x86/lguest/Kconfig
delete mode 100644 arch/x86/lguest/Makefile
delete mode 100644 arch/x86/lguest/boot.c
delete mode 100644 arch/x86/lguest/head_32.S
delete mode 100644 drivers/lguest/Kconfig
delete mode 100644 drivers/lguest/Makefile
delete mode 100644 drivers/lguest/README
delete mode 100644 drivers/lguest/core.c
delete mode 100644 drivers/lguest/hypercalls.c
delete mode 100644 drivers/lguest/interrupts_and_traps.c
delete mode 100644 drivers/lguest/lg.h
delete mode 100644 drivers/lguest/lguest_user.c
delete mode 100644 drivers/lguest/page_tables.c
delete mode 100644 drivers/lguest/segments.c
delete mode 100644 drivers/lguest/x86/core.c
delete mode 100644 drivers/lguest/x86/switcher_32.S
delete mode 100644 include/linux/lguest.h
delete mode 100644 include/linux/lguest_launcher.h
delete mode 100644 tools/lguest/.gitignore
delete mode 100644 tools/lguest/Makefile
delete mode 100644 tools/lguest/extract
delete mode 100644 tools/lguest/lguest.c
delete mode 100644 tools/lguest/lguest.txt

--
2.12.3