Messages in this thread | | | From | Lai Jiangshan <> | Subject | [PATCH 0/4] KVM: X86: Improve permission_fault() for SMAP | Date | Tue, 7 Dec 2021 17:50:35 +0800 |
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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
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