From: Kai Huang <kai.huang@intel.com>
To: kvm@vger.kernel.org, x86@kernel.org, linux-sgx@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, seanjc@google.com,
jarkko@kernel.org, luto@kernel.org, dave.hansen@intel.com,
rick.p.edgecombe@intel.com, haitao.huang@intel.com,
pbonzini@redhat.com, bp@alien8.de, tglx@linutronix.de,
mingo@redhat.com, hpa@zytor.com, jmattson@google.com,
joro@8bytes.org, vkuznets@redhat.com, wanpengli@tencent.com,
Kai Huang <kai.huang@intel.com>
Subject: [PATCH v3 16/25] KVM: x86: Define new #PF SGX error code bit
Date: Fri, 19 Mar 2021 20:23:40 +1300 [thread overview]
Message-ID: <c42a1621eb64dac1296c25061ad3bcca52d23243.1616136308.git.kai.huang@intel.com> (raw)
In-Reply-To: <cover.1616136307.git.kai.huang@intel.com>
From: Sean Christopherson <sean.j.christopherson@intel.com>
Page faults that are signaled by the SGX Enclave Page Cache Map (EPCM),
as opposed to the traditional IA32/EPT page tables, set an SGX bit in
the error code to indicate that the #PF was induced by SGX. KVM will
need to emulate this behavior as part of its trap-and-execute scheme for
virtualizing SGX Launch Control, e.g. to inject SGX-induced #PFs if
EINIT faults in the host, and to support live migration.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Kai Huang <kai.huang@intel.com>
---
arch/x86/include/asm/kvm_host.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 9bc091ecaaeb..8b1c13056768 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -227,6 +227,7 @@ enum x86_intercept_stage;
#define PFERR_RSVD_BIT 3
#define PFERR_FETCH_BIT 4
#define PFERR_PK_BIT 5
+#define PFERR_SGX_BIT 15
#define PFERR_GUEST_FINAL_BIT 32
#define PFERR_GUEST_PAGE_BIT 33
@@ -236,6 +237,7 @@ enum x86_intercept_stage;
#define PFERR_RSVD_MASK (1U << PFERR_RSVD_BIT)
#define PFERR_FETCH_MASK (1U << PFERR_FETCH_BIT)
#define PFERR_PK_MASK (1U << PFERR_PK_BIT)
+#define PFERR_SGX_MASK (1U << PFERR_SGX_BIT)
#define PFERR_GUEST_FINAL_MASK (1ULL << PFERR_GUEST_FINAL_BIT)
#define PFERR_GUEST_PAGE_MASK (1ULL << PFERR_GUEST_PAGE_BIT)
--
2.30.2
next prev parent reply other threads:[~2021-03-19 7:25 UTC|newest]
Thread overview: 124+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-19 7:29 [PATCH v3 00/25] KVM SGX virtualization support Kai Huang
2021-03-19 7:22 ` [PATCH v3 01/25] x86/cpufeatures: Make SGX_LC feature bit depend on SGX bit Kai Huang
2021-04-07 10:03 ` [tip: x86/sgx] " tip-bot2 for Kai Huang
2021-03-19 7:22 ` [PATCH v3 02/25] x86/cpufeatures: Add SGX1 and SGX2 sub-features Kai Huang
2021-04-07 10:03 ` [tip: x86/sgx] " tip-bot2 for Sean Christopherson
2021-03-19 7:22 ` [PATCH v3 03/25] x86/sgx: Wipe out EREMOVE from sgx_free_epc_page() Kai Huang
2021-03-22 18:16 ` Borislav Petkov
2021-03-22 18:56 ` Sean Christopherson
2021-03-22 19:11 ` Paolo Bonzini
2021-03-22 20:43 ` Kai Huang
2021-03-23 16:40 ` Paolo Bonzini
2021-03-22 19:15 ` Borislav Petkov
2021-03-22 19:37 ` Sean Christopherson
2021-03-22 20:36 ` Kai Huang
2021-03-22 21:06 ` Borislav Petkov
2021-03-22 22:06 ` Kai Huang
2021-03-22 22:37 ` Borislav Petkov
2021-03-22 23:16 ` Kai Huang
2021-03-23 15:45 ` Sean Christopherson
2021-03-23 16:06 ` Borislav Petkov
2021-03-23 16:21 ` Sean Christopherson
2021-03-23 16:32 ` Borislav Petkov
2021-03-23 16:51 ` Sean Christopherson
2021-03-24 9:38 ` Kai Huang
2021-03-24 10:09 ` Paolo Bonzini
2021-03-24 10:48 ` Kai Huang
2021-03-24 11:24 ` Paolo Bonzini
2021-03-24 23:23 ` Kai Huang
2021-03-24 23:39 ` Paolo Bonzini
2021-03-24 23:46 ` Kai Huang
2021-03-25 8:42 ` Borislav Petkov
2021-03-25 9:38 ` Kai Huang
2021-03-25 16:52 ` Borislav Petkov
2021-03-24 9:28 ` Jarkko Sakkinen
2021-03-23 16:38 ` Paolo Bonzini
2021-03-23 17:02 ` Sean Christopherson
2021-03-23 17:06 ` Paolo Bonzini
2021-03-23 17:16 ` Sean Christopherson
2021-03-23 18:16 ` Borislav Petkov
2021-03-24 9:26 ` Jarkko Sakkinen
2021-03-22 22:23 ` Kai Huang
2021-03-25 9:30 ` [PATCH v4 " Kai Huang
2021-03-26 19:48 ` Jarkko Sakkinen
2021-03-26 20:38 ` Kai Huang
2021-03-26 21:39 ` Jarkko Sakkinen
2021-04-07 10:03 ` [tip: x86/sgx] " tip-bot2 for Kai Huang
2021-03-19 7:22 ` [PATCH v3 04/25] x86/sgx: Add SGX_CHILD_PRESENT hardware error code Kai Huang
2021-04-07 10:03 ` [tip: x86/sgx] " tip-bot2 for Sean Christopherson
2021-03-19 7:22 ` [PATCH v3 05/25] x86/sgx: Introduce virtual EPC for use by KVM guests Kai Huang
2021-03-25 9:36 ` Kai Huang
2021-03-26 15:03 ` Borislav Petkov
2021-03-26 15:17 ` Dave Hansen
2021-03-26 15:29 ` Borislav Petkov
2021-03-26 15:35 ` Dave Hansen
2021-03-26 17:02 ` Borislav Petkov
2021-03-31 1:10 ` Kai Huang
2021-03-31 6:44 ` Boris Petkov
2021-03-31 6:51 ` Kai Huang
2021-03-31 7:44 ` Boris Petkov
2021-03-31 8:53 ` Kai Huang
2021-03-31 12:20 ` Kai Huang
2021-04-01 18:31 ` Borislav Petkov
2021-04-01 23:38 ` Kai Huang
2021-04-01 9:45 ` Kai Huang
2021-04-01 9:42 ` [PATCH v4 " Kai Huang
2021-04-05 9:01 ` [PATCH v3 " Borislav Petkov
2021-04-05 21:46 ` Kai Huang
2021-04-06 8:28 ` Borislav Petkov
2021-04-06 9:04 ` Kai Huang
2021-04-07 10:03 ` [tip: x86/sgx] " tip-bot2 for Sean Christopherson
2021-03-19 7:22 ` [PATCH v3 06/25] x86/cpu/intel: Allow SGX virtualization without Launch Control support Kai Huang
2021-04-07 10:03 ` [tip: x86/sgx] " tip-bot2 for Sean Christopherson
2021-03-19 7:23 ` [PATCH v3 07/25] x86/sgx: Initialize virtual EPC driver even when SGX driver is disabled Kai Huang
2021-04-02 9:48 ` Borislav Petkov
2021-04-02 11:08 ` Kai Huang
2021-04-02 11:22 ` Borislav Petkov
2021-04-02 11:38 ` Kai Huang
2021-04-02 15:42 ` Sean Christopherson
2021-04-02 19:08 ` Kai Huang
2021-04-02 19:19 ` Borislav Petkov
2021-04-02 19:30 ` Sean Christopherson
2021-04-02 19:46 ` Borislav Petkov
2021-04-07 10:03 ` [tip: x86/sgx] " tip-bot2 for Kai Huang
2021-03-19 7:23 ` [PATCH v3 08/25] x86/sgx: Expose SGX architectural definitions to the kernel Kai Huang
2021-04-07 10:03 ` [tip: x86/sgx] " tip-bot2 for Sean Christopherson
2021-03-19 7:23 ` [PATCH v3 09/25] x86/sgx: Move ENCLS leaf definitions to sgx.h Kai Huang
2021-04-07 10:03 ` [tip: x86/sgx] " tip-bot2 for Sean Christopherson
2021-03-19 7:23 ` [PATCH v3 10/25] x86/sgx: Add SGX2 ENCLS leaf definitions (EAUG, EMODPR and EMODT) Kai Huang
2021-04-07 10:03 ` [tip: x86/sgx] " tip-bot2 for Sean Christopherson
2021-03-19 7:23 ` [PATCH v3 11/25] x86/sgx: Add encls_faulted() helper Kai Huang
2021-04-07 10:03 ` [tip: x86/sgx] " tip-bot2 for Sean Christopherson
2021-03-19 7:23 ` [PATCH v3 12/25] x86/sgx: Add helper to update SGX_LEPUBKEYHASHn MSRs Kai Huang
2021-04-07 10:03 ` [tip: x86/sgx] " tip-bot2 for Kai Huang
2021-03-19 7:23 ` [PATCH v3 13/25] x86/sgx: Add helpers to expose ECREATE and EINIT to KVM Kai Huang
2021-04-05 9:07 ` Borislav Petkov
2021-04-05 21:44 ` Kai Huang
2021-04-06 7:40 ` Borislav Petkov
2021-04-06 8:59 ` Kai Huang
2021-04-06 9:09 ` Borislav Petkov
2021-04-06 9:24 ` Kai Huang
2021-04-06 9:32 ` Borislav Petkov
2021-04-06 9:41 ` Kai Huang
2021-04-06 17:08 ` Borislav Petkov
2021-04-06 20:33 ` Kai Huang
2021-04-07 10:03 ` [tip: x86/sgx] " tip-bot2 for Sean Christopherson
2021-03-19 7:23 ` [PATCH v3 14/25] x86/sgx: Move provisioning device creation out of SGX driver Kai Huang
2021-04-07 10:03 ` [tip: x86/sgx] " tip-bot2 for Sean Christopherson
2021-03-19 7:23 ` [PATCH v3 15/25] KVM: x86: Export kvm_mmu_gva_to_gpa_{read,write}() for SGX (VMX) Kai Huang
2021-03-19 7:23 ` Kai Huang [this message]
2021-03-19 7:23 ` [PATCH v3 17/25] KVM: x86: Add support for reverse CPUID lookup of scattered features Kai Huang
2021-03-19 7:23 ` [PATCH v3 18/25] KVM: x86: Add reverse-CPUID lookup support for scattered SGX features Kai Huang
2021-03-19 7:23 ` [PATCH v3 19/25] KVM: VMX: Add basic handling of VM-Exit from SGX enclave Kai Huang
2021-03-19 7:23 ` [PATCH v3 20/25] KVM: VMX: Frame in ENCLS handler for SGX virtualization Kai Huang
2021-03-19 7:23 ` [PATCH v3 21/25] KVM: VMX: Add SGX ENCLS[ECREATE] handler to enforce CPUID restrictions Kai Huang
2021-03-19 7:23 ` [PATCH v3 22/25] KVM: VMX: Add emulation of SGX Launch Control LE hash MSRs Kai Huang
2021-03-19 7:23 ` [PATCH v3 23/25] KVM: VMX: Add ENCLS[EINIT] handler to support SGX Launch Control (LC) Kai Huang
2021-03-19 7:23 ` [PATCH v3 24/25] KVM: VMX: Enable SGX virtualization for SGX1, SGX2 and LC Kai Huang
2021-03-19 7:24 ` [PATCH v3 25/25] KVM: x86: Add capability to grant VM access to privileged SGX attribute Kai Huang
2021-03-19 14:52 ` [PATCH v3 00/25] KVM SGX virtualization support Jarkko Sakkinen
2021-03-22 10:03 ` Kai Huang
2021-03-22 10:31 ` Borislav Petkov
2021-03-26 22:46 ` Jarkko Sakkinen
2021-03-28 21:01 ` Huang, Kai
2021-03-31 23:23 ` Jarkko Sakkinen
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