lkml.org 
[lkml]   [2020]   [Aug]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    Subject[PATCH v3 0/7] Remove 32-bit Xen PV guest support
    Date
    The long term plan has been to replace Xen PV guests by PVH. The first
    victim of that plan are now 32-bit PV guests, as those are used only
    rather seldom these days. Xen on x86 requires 64-bit support and with
    Grub2 now supporting PVH officially since version 2.04 there is no
    need to keep 32-bit PV guest support alive in the Linux kernel.
    Additionally Meltdown mitigation is not available in the kernel running
    as 32-bit PV guest, so dropping this mode makes sense from security
    point of view, too.

    Changes in V3:
    - addressed comments to V2
    - split patch 1 into 2 patches
    - new patches 3 and 7

    Changes in V2:
    - rebase to 5.8 kernel
    - addressed comments to V1
    - new patches 3 and 4

    Juergen Gross (7):
    x86/xen: remove 32-bit Xen PV guest support
    x86/xen: eliminate xen-asm_64.S
    x86/xen: drop tests for highmem in pv code
    x86/paravirt: remove 32-bit support from PARAVIRT_XXL
    x86/paravirt: cleanup paravirt macros
    x86/paravirt: use CONFIG_PARAVIRT_XXL instead of CONFIG_PARAVIRT
    x86/entry/32: revert "Fix XEN_PV build dependency"

    arch/x86/entry/entry_32.S | 109 +----
    arch/x86/entry/entry_64.S | 4 +-
    arch/x86/entry/vdso/vdso32/note.S | 30 --
    arch/x86/entry/vdso/vdso32/vclock_gettime.c | 1 +
    arch/x86/include/asm/fixmap.h | 2 +-
    arch/x86/include/asm/idtentry.h | 4 +-
    arch/x86/include/asm/paravirt.h | 107 +----
    arch/x86/include/asm/paravirt_types.h | 21 -
    arch/x86/include/asm/pgtable-3level_types.h | 5 -
    arch/x86/include/asm/proto.h | 2 +-
    arch/x86/include/asm/required-features.h | 2 +-
    arch/x86/include/asm/segment.h | 6 +-
    arch/x86/kernel/cpu/common.c | 8 -
    arch/x86/kernel/head_32.S | 31 --
    arch/x86/kernel/kprobes/core.c | 1 -
    arch/x86/kernel/kprobes/opt.c | 1 -
    arch/x86/kernel/paravirt.c | 18 -
    arch/x86/kernel/paravirt_patch.c | 17 -
    arch/x86/xen/Kconfig | 3 +-
    arch/x86/xen/Makefile | 3 +-
    arch/x86/xen/apic.c | 17 -
    arch/x86/xen/enlighten_pv.c | 78 +---
    arch/x86/xen/mmu_pv.c | 488 ++++----------------
    arch/x86/xen/p2m.c | 6 +-
    arch/x86/xen/setup.c | 36 +-
    arch/x86/xen/smp_pv.c | 18 -
    arch/x86/xen/vdso.h | 6 -
    arch/x86/xen/xen-asm.S | 193 +++++++-
    arch/x86/xen/xen-asm_32.S | 185 --------
    arch/x86/xen/xen-asm_64.S | 192 --------
    arch/x86/xen/xen-head.S | 6 -
    drivers/xen/Kconfig | 4 +-
    32 files changed, 305 insertions(+), 1299 deletions(-)
    delete mode 100644 arch/x86/xen/vdso.h
    delete mode 100644 arch/x86/xen/xen-asm_32.S
    delete mode 100644 arch/x86/xen/xen-asm_64.S

    --
    2.26.2

    \
     
     \ /
      Last update: 2020-08-07 10:39    [W:3.644 / U:0.016 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site