Displaying 11 results from an estimated 11 matches for "vmx_create_vcpu".
2017 Sep 25
0
[PATCH v1 1/4] KVM/vmx: re-write the msr auto switch feature
...x_free_vcpu_nested(vcpu);
free_loaded_vmcs(vmx->loaded_vmcs);
kfree(vmx->guest_msrs);
+ free_pages_exact(vmx->msr_autoload.host, bytes);
+ free_pages_exact(vmx->msr_autoload.guest, bytes);
kvm_vcpu_uninit(vcpu);
kmem_cache_free(kvm_vcpu_cache, vmx);
}
static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
{
- int err;
+ int err, cpu;
+ size_t bytes;
struct vcpu_vmx *vmx = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
- int cpu;
if (!vmx)
return ERR_PTR(-ENOMEM);
@@ -9559,6 +9598,17 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int i...
2017 Sep 25
10
[PATCH v1 0/4] Enable LBR for the guest
This patch series enables the Last Branch Recording feature for the
guest. Instead of trapping each LBR stack MSR access, the MSRs are
passthroughed to the guest. Those MSRs are switched (i.e. load and
saved) on VMExit and VMEntry.
Test:
Try "perf record -b ./test_program" on guest.
Wei Wang (4):
KVM/vmx: re-write the msr auto switch feature
KVM/vmx: auto switch
2017 Sep 25
10
[PATCH v1 0/4] Enable LBR for the guest
This patch series enables the Last Branch Recording feature for the
guest. Instead of trapping each LBR stack MSR access, the MSRs are
passthroughed to the guest. Those MSRs are switched (i.e. load and
saved) on VMExit and VMEntry.
Test:
Try "perf record -b ./test_program" on guest.
Wei Wang (4):
KVM/vmx: re-write the msr auto switch feature
KVM/vmx: auto switch
2020 Feb 07
0
[RFC PATCH v7 18/78] KVM: vmx: pass struct kvm_vcpu to the intercept msr related functions
...+ vmx_set_intercept_for_msr(vcpu, msr_bitmap,
MSR_IA32_RTIT_ADDR0_A + i * 2, MSR_TYPE_RW, flag);
- vmx_set_intercept_for_msr(msr_bitmap,
+ vmx_set_intercept_for_msr(vcpu, msr_bitmap,
MSR_IA32_RTIT_ADDR0_B + i * 2, MSR_TYPE_RW, flag);
}
}
@@ -6780,18 +6786,18 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
goto free_pml;
msr_bitmap = vmx->vmcs01.msr_bitmap;
- vmx_disable_intercept_for_msr(msr_bitmap, MSR_IA32_TSC, MSR_TYPE_R);
- vmx_disable_intercept_for_msr(msr_bitmap, MSR_FS_BASE, MSR_TYPE_RW);
- vmx_disable_intercept_for_msr(msr_bitmap, MSR_GS_BASE, MSR_...
2020 Jul 21
0
[PATCH v9 19/84] KVM: vmx: pass struct kvm_vcpu to the intercept msr related functions
...(msr_bitmap,
+ vmx_set_intercept_for_msr(vcpu, msr_bitmap,
MSR_IA32_RTIT_ADDR0_A + i * 2, MSR_TYPE_RW, flag);
- vmx_set_intercept_for_msr(msr_bitmap,
+ vmx_set_intercept_for_msr(vcpu, msr_bitmap,
MSR_IA32_RTIT_ADDR0_B + i * 2, MSR_TYPE_RW, flag);
}
}
@@ -6947,18 +6953,22 @@ static int vmx_create_vcpu(struct kvm_vcpu *vcpu)
goto free_pml;
msr_bitmap = vmx->vmcs01.msr_bitmap;
- vmx_disable_intercept_for_msr(msr_bitmap, MSR_IA32_TSC, MSR_TYPE_R);
- vmx_disable_intercept_for_msr(msr_bitmap, MSR_FS_BASE, MSR_TYPE_RW);
- vmx_disable_intercept_for_msr(msr_bitmap, MSR_GS_BASE, MSR_TYPE_RW);
-...
2020 Jul 22
0
[RFC PATCH v1 06/34] KVM: x86: mmu: add support for EPT switching
...d vmx_free_vcpu(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
if (enable_pml)
vmx_destroy_pml_buffer(vmx);
+ vmx_destroy_eptp_list_page(vmx);
free_vpid(vmx->vpid);
nested_vmx_free_vcpu(vcpu);
free_loaded_vmcs(vmx->loaded_vmcs);
@@ -7021,6 +7113,12 @@ static int vmx_create_vcpu(struct kvm_vcpu *vcpu)
if (err < 0)
goto free_pml;
+ if (kvm_eptp_switching_supported) {
+ err = vmx_alloc_eptp_list_page(vmx);
+ if (err)
+ goto free_pml;
+ }
+
msr_bitmap = vmx->vmcs01.msr_bitmap;
vmx_disable_intercept_for_msr(NULL, msr_bitmap, MSR_IA32_TSC, MSR_TYPE_R);
vm...
2020 Jul 22
34
[RFC PATCH v1 00/34] VM introspection - EPT Views and Virtualization Exceptions
This patch series is based on the VM introspection patches
(https://lore.kernel.org/kvm/20200721210922.7646-1-alazar at bitdefender.com/),
extending the introspection API with EPT Views and Virtualization
Exceptions (#VE) support.
The purpose of this series is to get an initial feedback and to see if
we are on the right track, especially because the changes made to add
the EPT views are not small
2020 Feb 07
78
[RFC PATCH v7 00/78] VM introspection
The KVM introspection subsystem provides a facility for applications
running on the host or in a separate VM, to control the execution of
other VMs (pause, resume, shutdown), query the state of the vCPUs (GPRs,
MSRs etc.), alter the page access bits in the shadow page tables (only
for the hardware backed ones, eg. Intel's EPT) and receive notifications
when events of interest have taken place
2020 Jul 21
87
[PATCH v9 00/84] VM introspection
The KVM introspection subsystem provides a facility for applications
running on the host or in a separate VM, to control the execution of
other VMs (pause, resume, shutdown), query the state of the vCPUs (GPRs,
MSRs etc.), alter the page access bits in the shadow page tables (only
for the hardware backed ones, eg. Intel's EPT) and receive notifications
when events of interest have taken place
2019 Aug 09
117
[RFC PATCH v6 00/92] VM introspection
The KVM introspection subsystem provides a facility for applications running
on the host or in a separate VM, to control the execution of other VM-s
(pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.),
alter the page access bits in the shadow page tables (only for the hardware
backed ones, eg. Intel's EPT) and receive notifications when events of
interest have taken place
2019 Aug 09
117
[RFC PATCH v6 00/92] VM introspection
The KVM introspection subsystem provides a facility for applications running
on the host or in a separate VM, to control the execution of other VM-s
(pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.),
alter the page access bits in the shadow page tables (only for the hardware
backed ones, eg. Intel's EPT) and receive notifications when events of
interest have taken place