Displaying 9 results from an estimated 9 matches for "x86emul_continu".
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x86emul_continue
2019 Aug 09
0
[RFC PATCH v6 79/92] kvm: x86: emulate movsd xmm, m64
...-----
1 file changed, 27 insertions(+), 5 deletions(-)
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 34431cf31f74..9d38f892beea 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -1177,6 +1177,27 @@ static int em_fnstsw(struct x86_emulate_ctxt *ctxt)
return X86EMUL_CONTINUE;
}
+static u8 simd_prefix_to_bytes(const struct x86_emulate_ctxt *ctxt,
+ int simd_prefix)
+{
+ u8 bytes;
+
+ switch (ctxt->b) {
+ case 0x11:
+ /* movsd xmm, m64 */
+ /* movups xmm, m128 */
+ if (simd_prefix == 0xf2) {
+ bytes = 8;
+ break;
+ }
+ /* fallthrough */
+ default...
2019 Aug 09
0
[RFC PATCH v6 74/92] kvm: x86: do not unconditionally patch the hypercall instruction during emulation
...struct kvm_vcpu *vcpu = emul_to_vcpu(ctxt);
- char instruction[3];
+ char buf[KVM_HYPERCALL_INSN_LEN];
+ char instruction[KVM_HYPERCALL_INSN_LEN];
unsigned long rip = kvm_rip_read(vcpu);
+ err = emulator_read_emulated(ctxt, rip, buf, sizeof(buf),
+ &ctxt->exception);
+ if (err != X86EMUL_CONTINUE)
+ return err;
+
kvm_x86_ops->patch_hypercall(vcpu, instruction);
+ if (!memcmp(instruction, buf, sizeof(instruction)))
+ /*
+ * The hypercall instruction is the correct one. Retry
+ * its execution maybe we got here as a result of an
+ * event other than #UD which has been resolved i...
2020 Feb 07
0
[RFC PATCH v7 30/78] KVM: x86: page track: provide all page tracking hooks with the guest virtual address
...al)
@@ -5668,7 +5668,7 @@ static int emulator_read_write_onepage(unsigned long addr, void *val,
return X86EMUL_PROPAGATE_FAULT;
}
- if (!ret && ops->read_write_emulate(vcpu, gpa, val, bytes))
+ if (!ret && ops->read_write_emulate(vcpu, gpa, addr, val, bytes))
return X86EMUL_CONTINUE;
/*
@@ -5827,7 +5827,7 @@ static int emulator_cmpxchg_emulated(struct x86_emulate_ctxt *ctxt,
if (!exchanged)
return X86EMUL_CMPXCHG_FAILED;
- kvm_page_track_write(vcpu, gpa, new, bytes);
+ kvm_page_track_write(vcpu, gpa, addr, new, bytes);
return X86EMUL_CONTINUE;
diff --git a/dr...
2020 Feb 07
0
[RFC PATCH v7 09/78] KVM: x86: avoid injecting #PF when emulate the VMCALL instruction
...gned long rip = kvm_rip_read(vcpu);
+ int err;
kvm_x86_ops->patch_hypercall(vcpu, instruction);
- return emulator_write_emulated(ctxt, rip, instruction, 3,
+ err = emulator_write_emulated(ctxt, rip, instruction, 3,
&ctxt->exception);
+ if (err == X86EMUL_PROPAGATE_FAULT)
+ err = X86EMUL_CONTINUE;
+ return err;
}
static int dm_request_for_irq_injection(struct kvm_vcpu *vcpu)
2020 Jul 21
0
[PATCH v9 08/84] KVM: x86: avoid injecting #PF when emulate the VMCALL instruction
...unsigned long rip = kvm_rip_read(vcpu);
+ int err;
kvm_x86_ops.patch_hypercall(vcpu, instruction);
- return emulator_write_emulated(ctxt, rip, instruction, 3,
+ err = emulator_write_emulated(ctxt, rip, instruction, 3,
&ctxt->exception);
+ if (err == X86EMUL_PROPAGATE_FAULT)
+ err = X86EMUL_CONTINUE;
+ return err;
}
static int dm_request_for_irq_injection(struct kvm_vcpu *vcpu)
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
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