From: Binbin Wu <binbin.wu@linux.intel.com>
To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: seanjc@google.com, pbonzini@redhat.com, chao.gao@intel.com,
kai.huang@intel.com, David.Laight@ACULAB.COM,
robert.hu@linux.intel.com, guang.zeng@intel.com,
binbin.wu@linux.intel.com
Subject: [PATCH v10 1/9] KVM: x86/mmu: Use GENMASK_ULL() to define __PT_BASE_ADDR_MASK
Date: Wed, 19 Jul 2023 22:41:23 +0800 [thread overview]
Message-ID: <20230719144131.29052-2-binbin.wu@linux.intel.com> (raw)
In-Reply-To: <20230719144131.29052-1-binbin.wu@linux.intel.com>
Use GENMASK_ULL() to define __PT_BASE_ADDR_MASK.
No functional change intended.
Signed-off-by: Binbin Wu <binbin.wu@linux.intel.com>
---
arch/x86/kvm/mmu/mmu_internal.h | 1 +
arch/x86/kvm/mmu/paging_tmpl.h | 2 +-
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kvm/mmu/mmu_internal.h b/arch/x86/kvm/mmu/mmu_internal.h
index d39af5639ce9..7d2105432d66 100644
--- a/arch/x86/kvm/mmu/mmu_internal.h
+++ b/arch/x86/kvm/mmu/mmu_internal.h
@@ -21,6 +21,7 @@ extern bool dbg;
#endif
/* Page table builder macros common to shadow (host) PTEs and guest PTEs. */
+#define __PT_BASE_ADDR_MASK GENMASK_ULL(51, 12)
#define __PT_LEVEL_SHIFT(level, bits_per_level) \
(PAGE_SHIFT + ((level) - 1) * (bits_per_level))
#define __PT_INDEX(address, level, bits_per_level) \
diff --git a/arch/x86/kvm/mmu/paging_tmpl.h b/arch/x86/kvm/mmu/paging_tmpl.h
index 0662e0278e70..00c8193f5991 100644
--- a/arch/x86/kvm/mmu/paging_tmpl.h
+++ b/arch/x86/kvm/mmu/paging_tmpl.h
@@ -62,7 +62,7 @@
#endif
/* Common logic, but per-type values. These also need to be undefined. */
-#define PT_BASE_ADDR_MASK ((pt_element_t)(((1ULL << 52) - 1) & ~(u64)(PAGE_SIZE-1)))
+#define PT_BASE_ADDR_MASK ((pt_element_t)__PT_BASE_ADDR_MASK)
#define PT_LVL_ADDR_MASK(lvl) __PT_LVL_ADDR_MASK(PT_BASE_ADDR_MASK, lvl, PT_LEVEL_BITS)
#define PT_LVL_OFFSET_MASK(lvl) __PT_LVL_OFFSET_MASK(PT_BASE_ADDR_MASK, lvl, PT_LEVEL_BITS)
#define PT_INDEX(addr, lvl) __PT_INDEX(addr, lvl, PT_LEVEL_BITS)
--
2.25.1
next prev parent reply other threads:[~2023-07-19 14:41 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-19 14:41 [PATCH v10 0/9] Linear Address Masking (LAM) KVM Enabling Binbin Wu
2023-07-19 14:41 ` Binbin Wu [this message]
2023-08-16 21:00 ` [PATCH v10 1/9] KVM: x86/mmu: Use GENMASK_ULL() to define __PT_BASE_ADDR_MASK Sean Christopherson
2023-08-28 4:06 ` Binbin Wu
2023-08-31 19:26 ` Sean Christopherson
2023-07-19 14:41 ` [PATCH v10 2/9] KVM: x86: Add & use kvm_vcpu_is_legal_cr3() to check CR3's legality Binbin Wu
2023-07-20 23:53 ` Isaku Yamahata
2023-07-21 2:20 ` Binbin Wu
2023-07-21 15:03 ` Sean Christopherson
2023-07-24 2:07 ` Binbin Wu
2023-07-25 16:05 ` Sean Christopherson
2023-07-19 14:41 ` [PATCH v10 3/9] KVM: x86: Use KVM-governed feature framework to track "LAM enabled" Binbin Wu
2023-08-16 3:46 ` Huang, Kai
2023-08-16 7:08 ` Binbin Wu
2023-08-16 9:47 ` Huang, Kai
2023-08-16 21:33 ` Sean Christopherson
2023-08-16 23:03 ` Huang, Kai
2023-08-17 1:28 ` Binbin Wu
2023-08-17 19:46 ` Sean Christopherson
2023-07-19 14:41 ` [PATCH v10 4/9] KVM: x86: Virtualize CR4.LAM_SUP Binbin Wu
2023-08-16 21:41 ` Sean Christopherson
2023-07-19 14:41 ` [PATCH v10 5/9] KVM: x86: Virtualize CR3.LAM_{U48,U57} Binbin Wu
2023-08-16 21:44 ` Sean Christopherson
2023-07-19 14:41 ` [PATCH v10 6/9] KVM: x86: Introduce get_untagged_addr() in kvm_x86_ops and call it in emulator Binbin Wu
2023-07-19 14:41 ` [PATCH v10 7/9] KVM: VMX: Implement and wire get_untagged_addr() for LAM Binbin Wu
2023-08-16 22:01 ` Sean Christopherson
2023-08-17 9:51 ` Binbin Wu
2023-08-17 14:44 ` Sean Christopherson
2023-07-19 14:41 ` [PATCH v10 8/9] KVM: x86: Untag address for vmexit handlers when LAM applicable Binbin Wu
2023-08-16 21:49 ` Sean Christopherson
2023-08-16 22:10 ` Sean Christopherson
2023-07-19 14:41 ` [PATCH v10 9/9] KVM: x86: Expose LAM feature to userspace VMM Binbin Wu
2023-08-16 21:53 ` Sean Christopherson
2023-08-17 1:59 ` Binbin Wu
2023-08-15 2:05 ` [PATCH v10 0/9] Linear Address Masking (LAM) KVM Enabling Binbin Wu
2023-08-15 23:49 ` Sean Christopherson
2023-08-16 22:25 ` Sean Christopherson
2023-08-17 9:17 ` Binbin Wu
2023-08-18 4:31 ` Binbin Wu
2023-08-18 13:53 ` Sean Christopherson
2023-08-25 14:18 ` Zeng Guang
2023-08-31 20:24 ` Sean Christopherson
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