From: "Adalbert Lazăr" <alazar@bitdefender.com>
To: kvm@vger.kernel.org
Cc: virtualization@lists.linux-foundation.org,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Sean Christopherson" <sean.j.christopherson@intel.com>,
"Mihai Donțu" <mdontu@bitdefender.com>,
"Adalbert Lazăr" <alazar@bitdefender.com>
Subject: [RFC PATCH v7 27/78] KVM: x86: extend kvm_mmu_gva_to_gpa_system() with the 'access' parameter
Date: Fri, 7 Feb 2020 20:15:45 +0200 [thread overview]
Message-ID: <20200207181636.1065-28-alazar@bitdefender.com> (raw)
In-Reply-To: <20200207181636.1065-1-alazar@bitdefender.com>
From: Mihai Donțu <mdontu@bitdefender.com>
This is needed for the introspection subsytem to emulate a guest page
table walk on SPT violations due to A/D bit updates.
Signed-off-by: Mihai Donțu <mdontu@bitdefender.com>
Signed-off-by: Adalbert Lazăr <alazar@bitdefender.com>
---
arch/x86/include/asm/kvm_host.h | 2 +-
arch/x86/kvm/x86.c | 6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 6927a6044e26..d216ed1a7c7d 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1487,7 +1487,7 @@ gpa_t kvm_mmu_gva_to_gpa_fetch(struct kvm_vcpu *vcpu, gva_t gva,
gpa_t kvm_mmu_gva_to_gpa_write(struct kvm_vcpu *vcpu, gva_t gva,
struct x86_exception *exception);
gpa_t kvm_mmu_gva_to_gpa_system(struct kvm_vcpu *vcpu, gva_t gva,
- struct x86_exception *exception);
+ u32 access, struct x86_exception *exception);
void kvm_vcpu_deactivate_apicv(struct kvm_vcpu *vcpu);
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c607148dcf63..5e6327363207 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5325,9 +5325,9 @@ gpa_t kvm_mmu_gva_to_gpa_write(struct kvm_vcpu *vcpu, gva_t gva,
/* uses this to access any guest's mapped memory without checking CPL */
gpa_t kvm_mmu_gva_to_gpa_system(struct kvm_vcpu *vcpu, gva_t gva,
- struct x86_exception *exception)
+ u32 access, struct x86_exception *exception)
{
- return vcpu->arch.walk_mmu->gva_to_gpa(vcpu, gva, 0, exception);
+ return vcpu->arch.walk_mmu->gva_to_gpa(vcpu, gva, access, exception);
}
static int kvm_read_guest_virt_helper(gva_t addr, void *val, unsigned int bytes,
@@ -9005,7 +9005,7 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
vcpu_load(vcpu);
idx = srcu_read_lock(&vcpu->kvm->srcu);
- gpa = kvm_mmu_gva_to_gpa_system(vcpu, vaddr, NULL);
+ gpa = kvm_mmu_gva_to_gpa_system(vcpu, vaddr, 0, NULL);
srcu_read_unlock(&vcpu->kvm->srcu, idx);
tr->physical_address = gpa;
tr->valid = gpa != UNMAPPED_GVA;
next prev parent reply other threads:[~2020-02-07 18:18 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-07 18:15 [RFC PATCH v7 00/78] VM introspection Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 01/78] sched/swait: add swait_event_killable_exclusive() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 02/78] export kill_pid_info() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 03/78] KVM: add new error codes for VM introspection Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 04/78] KVM: add kvm_vcpu_kick_and_wait() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 05/78] KVM: add kvm_get_max_gfn() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 06/78] KVM: doc: fix the hypercall numbering Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 07/78] KVM: x86: add kvm_arch_vcpu_get_regs() and kvm_arch_vcpu_get_sregs() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 08/78] KVM: x86: add kvm_arch_vcpu_set_regs() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 09/78] KVM: x86: avoid injecting #PF when emulate the VMCALL instruction Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 10/78] KVM: x86: add .bp_intercepted() to struct kvm_x86_ops Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 11/78] KVM: x86: add .control_cr3_intercept() " Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 12/78] KVM: x86: add .cr3_write_intercepted() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 13/78] KVM: x86: add .control_desc_intercept() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 14/78] KVM: x86: add .desc_intercepted() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 15/78] KVM: x86: export .msr_write_intercepted() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 16/78] KVM: x86: use MSR_TYPE_R, MSR_TYPE_W and MSR_TYPE_RW with AMD code too Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 17/78] KVM: svm: pass struct kvm_vcpu to set_msr_interception() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 18/78] KVM: vmx: pass struct kvm_vcpu to the intercept msr related functions Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 19/78] KVM: x86: add .control_msr_intercept() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 20/78] KVM: x86: vmx: use a symbolic constant when checking the exit qualifications Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 21/78] KVM: x86: save the error code during EPT/NPF exits handling Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 22/78] KVM: x86: add .fault_gla() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 23/78] KVM: x86: add .spt_fault() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 24/78] KVM: x86: add .gpt_translation_fault() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 25/78] KVM: x86: add .control_singlestep() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 26/78] KVM: x86: export kvm_arch_vcpu_set_guest_debug() Adalbert Lazăr
2020-02-07 18:15 ` Adalbert Lazăr [this message]
2020-02-07 18:15 ` [RFC PATCH v7 28/78] KVM: x86: export kvm_inject_pending_exception() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 29/78] KVM: x86: export kvm_vcpu_ioctl_x86_get_xsave() Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 30/78] KVM: x86: page track: provide all page tracking hooks with the guest virtual address Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 31/78] KVM: x86: page track: add track_create_slot() callback Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 32/78] KVM: x86: page_track: add support for preread, prewrite and preexec Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 33/78] KVM: x86: wire in the preread/prewrite/preexec page trackers Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 34/78] KVM: x86: intercept the write access on sidt and other emulated instructions Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 35/78] KVM: x86: disable gpa_available optimization for fetch and page-walk NPF/EPT violations Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 36/78] KVM: introduce VM introspection Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 37/78] KVM: introspection: add hook/unhook ioctls Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 38/78] KVM: introspection: add permission access ioctls Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 39/78] KVM: introspection: add the read/dispatch message function Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 40/78] KVM: introspection: add KVMI_GET_VERSION Adalbert Lazăr
2020-02-07 18:15 ` [RFC PATCH v7 41/78] KVM: introspection: add KVMI_VM_CHECK_COMMAND and KVMI_VM_CHECK_EVENT Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 42/78] KVM: introspection: add KVMI_VM_GET_INFO Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 43/78] KVM: introspection: add KVMI_EVENT_UNHOOK Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 44/78] KVM: introspection: add KVMI_VM_CONTROL_EVENTS Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 45/78] KVM: introspection: add KVMI_VM_READ_PHYSICAL/KVMI_VM_WRITE_PHYSICAL Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 46/78] KVM: introspection: add vCPU related data Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 47/78] KVM: introspection: add a jobs list to every introspected vCPU Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 48/78] KVM: introspection: handle vCPU introspection requests Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 49/78] KVM: introspection: handle vCPU commands Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 50/78] KVM: introspection: add KVMI_VCPU_GET_INFO Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 51/78] KVM: introspection: add KVMI_VCPU_PAUSE Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 52/78] KVM: introspection: add KVMI_EVENT_PAUSE_VCPU Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 53/78] KVM: introspection: add KVMI_VCPU_CONTROL_EVENTS Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 54/78] KVM: introspection: add KVMI_VCPU_GET_REGISTERS Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 55/78] KVM: introspection: add KVMI_VCPU_SET_REGISTERS Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 56/78] KVM: introspection: add KVMI_VCPU_GET_CPUID Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 57/78] KVM: introspection: add KVMI_EVENT_HYPERCALL Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 58/78] KVM: introspection: add KVMI_EVENT_BREAKPOINT Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 59/78] KVM: introspection: restore the state of #BP interception on unhook Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 60/78] KVM: introspection: add KVMI_VCPU_CONTROL_CR and KVMI_EVENT_CR Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 61/78] KVM: introspection: restore the state of CR3 interception on unhook Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 62/78] KVM: introspection: add KVMI_VCPU_INJECT_EXCEPTION + KVMI_EVENT_TRAP Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 63/78] KVM: introspection: add KVMI_VM_GET_MAX_GFN Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 64/78] KVM: introspection: add KVMI_EVENT_XSETBV Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 65/78] KVM: introspection: add KVMI_VCPU_GET_XSAVE Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 66/78] KVM: introspection: add KVMI_VCPU_GET_MTRR_TYPE Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 67/78] KVM: introspection: add KVMI_EVENT_DESCRIPTOR Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 68/78] KVM: introspection: restore the state of descriptor interception on unhook Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 69/78] KVM: introspection: add KVMI_VCPU_CONTROL_MSR and KVMI_EVENT_MSR Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 70/78] KVM: introspection: restore the state of MSR interception on unhook Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 71/78] KVM: introspection: add KVMI_VM_SET_PAGE_ACCESS Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 72/78] KVM: introspection: add KVMI_EVENT_PF Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 73/78] KVM: introspection: extend KVMI_GET_VERSION with struct kvmi_features Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 74/78] KVM: introspection: add KVMI_VCPU_CONTROL_SINGLESTEP Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 75/78] KVM: introspection: add KVMI_EVENT_SINGLESTEP Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 76/78] KVM: introspection: add KVMI_VCPU_TRANSLATE_GVA Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 77/78] KVM: introspection: emulate a guest page table walk on SPT violations due to A/D bit updates Adalbert Lazăr
2020-02-07 18:16 ` [RFC PATCH v7 78/78] KVM: x86: call the page tracking code on emulation failure Adalbert Lazăr
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