On 08/18/2015 10:57 PM, Paolo Bonzini wrote:
On 18/08/2015 11:30, Avi Kivity wrote:
KVM_USER_EXIT in practice should be so rare (at least with in-kernel
LAPIC) that I don't think this matters. KVM_USER_EXIT is relatively
uninteresting, it only exists to provide an alternative to signals that
On 08/17/2015 04:15 PM, Paolo Bonzini wrote:
On 16/08/2015 13:27, Avi Kivity wrote:
On 08/05/2015 07:33 PM, Radim Krčmář wrote:
The guest can use KVM_USER_EXIT instead of a signal-based exiting to
userspace. Availability depends on KVM_CAP_USER_EXIT.
Only x86 is implemented so far.
On 18/08/2015 11:30, Avi Kivity wrote:
KVM_USER_EXIT in practice should be so rare (at least with in-kernel
LAPIC) that I don't think this matters. KVM_USER_EXIT is relatively
uninteresting, it only exists to provide an alternative to signals that
doesn't require expensive atomics on each
On 16/08/2015 13:27, Avi Kivity wrote:
On 08/05/2015 07:33 PM, Radim Krčmář wrote:
The guest can use KVM_USER_EXIT instead of a signal-based exiting to
userspace. Availability depends on KVM_CAP_USER_EXIT.
Only x86 is implemented so far.
Signed-off-by: Radim Krčmář rkrc...@redhat.com
---
On 08/05/2015 07:33 PM, Radim Krčmář wrote:
The guest can use KVM_USER_EXIT instead of a signal-based exiting to
userspace. Availability depends on KVM_CAP_USER_EXIT.
Only x86 is implemented so far.
Signed-off-by: Radim Krčmář rkrc...@redhat.com
---
v2:
* use vcpu ioctl instead of vm one
2015-08-06 15:52+0200, Paolo Bonzini:
On 06/08/2015 15:44, Radim Krčmář wrote:
The two obvious extensions are flags to skip kvm_make_request() or
kvm_vcpu_kick(), both of dubious use.
Skipping kvm_make_request() would make some sense if you can set
vcpu-run-request_interrupt_window
On 06/08/2015 15:44, Radim Krčmář wrote:
Can we just return EINVAL if the parameter is not NULL?
It complicates handling if we extend the ioctl, but removes the useless
clearing/copying/checking now ...
Yes.
The two obvious extensions are flags to skip kvm_make_request() or
2015-08-05 18:36+0200, Paolo Bonzini:
On 05/08/2015 18:33, Radim Krčmář wrote:
+4.97 KVM_USER_EXIT
+
+Capability: KVM_CAP_USER_EXIT
+Architectures: x86
+Type: vcpu ioctl
+Parameters: struct kvm_user_exit (in)
+Returns: 0 on success,
+ -EFAULT if the parameter couldn't be read,
+
On 05/08/2015 18:33, Radim Krčmář wrote:
The guest can use KVM_USER_EXIT instead of a signal-based exiting to
userspace. Availability depends on KVM_CAP_USER_EXIT.
Only x86 is implemented so far.
Signed-off-by: Radim Krčmář rkrc...@redhat.com
---
v2:
* use vcpu ioctl instead of vm
