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 v11 03/16] KVM: x86: Add an emulation flag for implicit system access
Date: Wed, 13 Sep 2023 20:42:14 +0800 [thread overview]
Message-ID: <20230913124227.12574-4-binbin.wu@linux.intel.com> (raw)
In-Reply-To: <20230913124227.12574-1-binbin.wu@linux.intel.com>
Add an emulation flag X86EMUL_F_IMPLICIT to identify implicit system access
in instruction emulation.
Linear Address Space Separation (LASS) treats data access a supervisor-mode
access if it implicitly accessed a system data structure. The flag will be
consumed to support LASS virtualization.
Signed-off-by: Binbin Wu <binbin.wu@linux.intel.com>
Tested-by: Xuelian Guo <xuelian.guo@intel.com>
---
arch/x86/kvm/kvm_emulate.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/kvm/kvm_emulate.h b/arch/x86/kvm/kvm_emulate.h
index e1fd83908334..5f9869018332 100644
--- a/arch/x86/kvm/kvm_emulate.h
+++ b/arch/x86/kvm/kvm_emulate.h
@@ -92,6 +92,7 @@ struct x86_instruction_info {
#define X86EMUL_F_WRITE BIT(0)
#define X86EMUL_F_FETCH BIT(1)
#define X86EMUL_F_BRANCH BIT(2)
+#define X86EMUL_F_IMPLICIT BIT(3)
struct x86_emulate_ops {
void (*vm_bugged)(struct x86_emulate_ctxt *ctxt);
--
2.25.1
next prev parent reply other threads:[~2023-09-13 15:39 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-13 12:42 [PATCH v11 00/16] LAM and LASS KVM Enabling Binbin Wu
2023-09-13 12:42 ` [PATCH v11 01/16] KVM: x86: Consolidate flags for __linearize() Binbin Wu
2023-09-13 12:42 ` [PATCH v11 02/16] KVM: x86: Use a new flag for branch targets Binbin Wu
2023-10-23 16:20 ` Sean Christopherson
2023-09-13 12:42 ` Binbin Wu [this message]
2023-09-13 12:42 ` [PATCH v11 04/16] KVM: x86: Add X86EMUL_F_INVLPG and pass it in em_invlpg() Binbin Wu
2023-09-13 12:42 ` [PATCH v11 05/16] KVM: x86/mmu: Drop non-PA bits when getting GFN for guest's PGD Binbin Wu
2023-09-13 12:42 ` [PATCH v11 06/16] KVM: x86: Add & use kvm_vcpu_is_legal_cr3() to check CR3's legality Binbin Wu
2023-09-13 12:42 ` [PATCH v11 07/16] KVM: x86: Remove kvm_vcpu_is_illegal_gpa() Binbin Wu
2023-09-13 12:42 ` [PATCH v11 08/16] KVM: x86: Introduce get_untagged_addr() in kvm_x86_ops and call it in emulator Binbin Wu
2023-10-23 23:14 ` Sean Christopherson
2023-10-23 23:30 ` Sean Christopherson
2023-09-13 12:42 ` [PATCH v11 09/16] KVM: x86: Untag address for vmexit handlers when LAM applicable Binbin Wu
2023-09-13 12:42 ` [PATCH v11 10/16] KVM: x86: Virtualize LAM for supervisor pointer Binbin Wu
2023-09-13 12:42 ` [PATCH v11 11/16] KVM: x86: Virtualize LAM for user pointer Binbin Wu
2023-09-13 12:42 ` [PATCH v11 12/16] KVM: x86: Advertise and enable LAM (user and supervisor) Binbin Wu
2023-09-13 12:42 ` [PATCH v11 13/16] KVM: x86: Use KVM-governed feature framework to track "LAM enabled" Binbin Wu
2023-09-13 12:42 ` [PATCH v11 14/16] KVM: emulator: Add emulation of LASS violation checks on linear address Binbin Wu
2023-09-13 12:42 ` [PATCH v11 15/16] KVM: VMX: Virtualize LASS Binbin Wu
2023-09-13 12:42 ` [PATCH v11 16/16] KVM: x86: Advertise LASS CPUID to user space Binbin Wu
2023-10-08 9:37 ` [PATCH v11 00/16] LAM and LASS KVM Enabling Binbin Wu
2023-10-10 23:48 ` Sean Christopherson
2023-10-21 0:26 ` Sean Christopherson
2023-10-21 0:34 ` Sean Christopherson
2023-10-22 12:35 ` Binbin Wu
2023-10-23 23:43 ` Sean Christopherson
2023-10-24 8:31 ` Binbin Wu
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