Displaying 6 results from an estimated 6 matches for "kvm_vcpu_write_guest".
2020 Feb 07
0
[RFC PATCH v7 34/78] KVM: x86: intercept the write access on sidt and other emulated instructions
...+ b/arch/x86/kvm/x86.c
@@ -5450,11 +5450,14 @@ static int kvm_write_guest_virt_helper(gva_t addr, void *val, unsigned int bytes
if (gpa == UNMAPPED_GVA)
return X86EMUL_PROPAGATE_FAULT;
+ if (!kvm_page_track_prewrite(vcpu, gpa, addr, data, towrite))
+ return X86EMUL_RETRY_INSTR;
ret = kvm_vcpu_write_guest(vcpu, gpa, data, towrite);
if (ret < 0) {
r = X86EMUL_IO_NEEDED;
goto out;
}
+ kvm_page_track_write(vcpu, gpa, addr, data, towrite);
bytes -= towrite;
data += towrite;
2020 Feb 07
0
[RFC PATCH v7 30/78] KVM: x86: page track: provide all page tracking hooks with the guest virtual address
..._gpa(vcpu, gva, *gpa, write);
}
-int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
+int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa, gva_t gva,
const void *val, int bytes)
{
int ret;
@@ -5562,14 +5562,14 @@ int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
ret = kvm_vcpu_write_guest(vcpu, gpa, val, bytes);
if (ret < 0)
return 0;
- kvm_page_track_write(vcpu, gpa, val, bytes);
+ kvm_page_track_write(vcpu, gpa, gva, val, bytes);
return 1;
}
struct read_write_emulator_ops {
int (*read_write_prepare)(struct kvm_vcpu *vcpu, void *val,
int bytes);
- int (*read_...
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