On 11/8/23 22:45, Peter Xu wrote:
On Mon, Nov 06, 2023 at 10:38:14PM +0100, William Roche wrote:
But it implies a lot of other changes:
- The source has to flag the error pages to indicate a poison
(new flag in the exchange protocole)
- The destination has to be able to deal
On Mon, Nov 06, 2023 at 10:38:14PM +0100, William Roche wrote:
> Note also that large pages are taken into account too for our live
> migration, but the poisoning of a qemu large page requires more work
> especially for VM using standard 4k pages on top of these qemu large
> pages -- and this is a
On 10/17/23 17:13, Peter Xu wrote:
On Tue, Oct 17, 2023 at 02:38:48AM +0200, William Roche wrote:
On 10/16/23 18:48, Peter Xu wrote:
On Fri, Oct 13, 2023 at 03:08:39PM +, “William Roche wrote:
diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
index 5e95c496bb..e8db6380c1 100644
---
On Tue, Oct 17, 2023 at 02:38:48AM +0200, William Roche wrote:
> On 10/16/23 18:48, Peter Xu wrote:
> > On Fri, Oct 13, 2023 at 03:08:39PM +, “William Roche wrote:
> > > diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
> > > index 5e95c496bb..e8db6380c1 100644
> > > ---
On 10/16/23 18:48, Peter Xu wrote:
On Fri, Oct 13, 2023 at 03:08:39PM +, “William Roche wrote:
diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
index 5e95c496bb..e8db6380c1 100644
--- a/target/arm/kvm64.c
+++ b/target/arm/kvm64.c
@@ -1158,7 +1158,6 @@ void
On Fri, Oct 13, 2023 at 03:08:39PM +, “William Roche wrote:
> diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
> index 5e95c496bb..e8db6380c1 100644
> --- a/target/arm/kvm64.c
> +++ b/target/arm/kvm64.c
> @@ -1158,7 +1158,6 @@ void kvm_arch_on_sigbus_vcpu(CPUState *c, int code,
> void
From: William Roche
Migrating a poisoned page as a zero-page can only be done when the
running guest kernel knows about this poison, so that it marks this
page as unaccessible and any access in the VM would fail.
But if a poison information is not relayed to the VM, the kernel
does not prevent
