On Wed, Sep 25, 2024 at 05:06:45PM -0700, Sean Christopherson wrote:
>
> Yeah, but only because the alternative sucks worse. If KVM unconditionally
> exited
> with an emulation error, then unsuspecting (read: old) VMMs would likely
> terminate
> the guest, which gives guest userspace a way to D
On Tue, Sep 24, 2024, Ivan Orlov wrote:
> On Mon, Sep 23, 2024 at 02:46:17PM -0700, Sean Christopherson wrote:
> > >
> > > > No. This is not architectural behavior. It's not even remotely
> > > > close to
> > > > architectural behavior. KVM's behavior isn't great, but making up
> > > > _guest v
On Mon, Sep 23, 2024 at 02:46:17PM -0700, Sean Christopherson wrote:
> >
> > > No. This is not architectural behavior. It's not even remotely
> > > close to
> > > architectural behavior. KVM's behavior isn't great, but making up
> > > _guest visible_
> > > behavior is not going to happen.
> >
>
On Mon, Sep 23, 2024, Jack Allister wrote:
> On Mon, 2024-09-23 at 10:04 -0700, Sean Christopherson wrote:
> >
> > On Mon, Sep 23, 2024, Ivan Orlov wrote:
> > > Currently, KVM may return a variety of internal errors to VMM when
> > > accessing MMIO, and some of them could be gracefully handled on
On Mon, Sep 23, 2024, Jack Allister wrote:
> On Mon, 2024-09-23 at 10:04 -0700, Sean Christopherson wrote:
> >
> > On Mon, Sep 23, 2024, Ivan Orlov wrote:
> > > Currently, KVM may return a variety of internal errors to VMM when
> > > accessing MMIO, and some of them could be gracefully handled on
On Mon, 2024-09-23 at 10:04 -0700, Sean Christopherson wrote:
>
> On Mon, Sep 23, 2024, Ivan Orlov wrote:
> > Currently, KVM may return a variety of internal errors to VMM when
> > accessing MMIO, and some of them could be gracefully handled on the
> > KVM
> > level instead. Moreover, some of the
On Mon, Sep 23, 2024, Ivan Orlov wrote:
> Currently, KVM may return a variety of internal errors to VMM when
> accessing MMIO, and some of them could be gracefully handled on the KVM
> level instead. Moreover, some of the MMIO-related errors are handled
> differently in VMX in comparison with SVM,
Currently, KVM may return a variety of internal errors to VMM when
accessing MMIO, and some of them could be gracefully handled on the KVM
level instead. Moreover, some of the MMIO-related errors are handled
differently in VMX in comparison with SVM, which produces certain
inconsistency and should
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