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From: "SU Hang" <darcy.sh@antgroup.com>
To: seanjc@google.com, kvm@vger.kernel.org
Cc: "Lai Jiangshan" <jiangshan.ljs@antgroup.com>,
	"SU Hang" <darcy.sh@antgroup.com>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Ingo Molnar" <mingo@redhat.com>,
	"Borislav Petkov" <bp@alien8.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org, "Paolo Bonzini" <pbonzini@redhat.com>,
	"Radim Krčmář" <rkrcmar@redhat.com>,
	linux-kernel@vger.kernel.org
Subject: [PATCH v2 0/2] KVM: x86: Replace magic number with readable macro
Date: Tue, 29 Mar 2022 11:01:05 +0800	[thread overview]
Message-ID: <20220329030108.97341-1-darcy.sh@antgroup.com> (raw)

Replace magic number 0x180 with `EPT_VIOLATION_GVA_IS_VALID | EPT_VIOLATION_GVA_TRANSLATED`
in arch/x86/kvm/mmu/paging_tmpl.h
Similarly, replace `(pte_access & 0x7) << 3` with
`(pte_access & VMX_EPT_RWX_MASK) << EPT_VIOLATION_RWX_SHIFT`.

v1 -> v2: https://lore.kernel.org/kvm/20220321094203.109546-1-darcy.sh@antgroup.com/
- Rename `EPT_VIOLATION_GVA_VALIDATION` to `EPT_VIOLATION_GVA_IS_VALID`. [Sean]
- Using new added `VMX_EPT_RWX_MASK` to replace magic number 0x7 and so on,
  to avoid using branch statement in hotpath. [Sean]

SU Hang (1):
  KVM: VMX:  replace 0x180 with EPT_VIOLATION_* definition

Sean Christopherson (1):
  KVM: x86/mmu: Derive EPT violation RWX bits from EPTE RWX bits

 arch/x86/include/asm/vmx.h     |  9 +++------
 arch/x86/kvm/mmu/paging_tmpl.h | 11 +++++++++--
 arch/x86/kvm/vmx/vmx.c         |  4 +---
 3 files changed, 13 insertions(+), 11 deletions(-)

--
2.32.0.3.g01195cf9f


             reply	other threads:[~2022-03-29  3:01 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-29  3:01 SU Hang [this message]
2022-03-29  3:01 ` [PATCH v2 1/2] KVM: VMX: replace 0x180 with EPT_VIOLATION_* definition SU Hang
2022-03-29 16:00   ` Sean Christopherson
2022-03-29  3:01 ` [PATCH v2 2/2] KVM: x86/mmu: Derive EPT violation RWX bits from EPTE RWX bits SU Hang
2022-04-08 21:11   ` Isaku Yamahata
2022-04-08 21:32     ` Sean Christopherson
2022-04-08 16:48 ` [PATCH v2 0/2] KVM: x86: Replace magic number with readable macro Paolo Bonzini

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