lkml.org 
[lkml]   [2021]   [Dec]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH 0/4] KVM: X86: Improve permission_fault() for SMAP
Date
From: Lai Jiangshan <laijs@linux.alibaba.com>

permission_fault() calls two callbacks to get CPL and RFLAGS for SMAP,
but it is unneeded for some cases, this patchset improves it.

Lai Jiangshan (4):
KVM: X86: Fix comments in update_permission_bitmask
KVM: X86: Rename variable smap to not_smap in permission_fault()
KVM: X86: Handle implicit supervisor access with SMAP
KVM: X86: Only get rflags when needed in permission_fault()

arch/x86/include/asm/kvm_host.h | 9 +++++++
arch/x86/kvm/mmu.h | 45 +++++++++++++++++++++------------
arch/x86/kvm/mmu/mmu.c | 8 +++---
arch/x86/kvm/x86.c | 20 ++++++++++++---
4 files changed, 59 insertions(+), 23 deletions(-)

--
2.19.1.6.gb485710b

\
 
 \ /
  Last update: 2021-12-07 10:51    [W:0.076 / U:0.652 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site