Re: [PATCH v17 6/6] KVM: arm64: Document MTE capability and ioctl

2021-06-22 Thread Fuad Tabba
Hi Marc, On Tue, Jun 22, 2021 at 11:35 AM Marc Zyngier wrote: > > On Tue, 22 Jun 2021 10:42:42 +0100, > Fuad Tabba wrote: > > > > Hi, > > > > > > On Mon, Jun 21, 2021 at 12:18 PM Steven Price wrote: > > > > > > A new capability (KVM_CAP_ARM_MTE) identifies that the kernel supports > > > grantin

Re: [PATCH v17 6/6] KVM: arm64: Document MTE capability and ioctl

2021-06-22 Thread Marc Zyngier
On Tue, 22 Jun 2021 10:42:42 +0100, Fuad Tabba wrote: > > Hi, > > > On Mon, Jun 21, 2021 at 12:18 PM Steven Price wrote: > > > > A new capability (KVM_CAP_ARM_MTE) identifies that the kernel supports > > granting a guest access to the tags, and provides a mechanism for the > > VMM to enable it

Re: [PATCH v17 6/6] KVM: arm64: Document MTE capability and ioctl

2021-06-22 Thread Fuad Tabba
Hi, On Mon, Jun 21, 2021 at 12:18 PM Steven Price wrote: > > A new capability (KVM_CAP_ARM_MTE) identifies that the kernel supports > granting a guest access to the tags, and provides a mechanism for the > VMM to enable it. > > A new ioctl (KVM_ARM_MTE_COPY_TAGS) provides a simple way for a VMM

[PATCH v17 6/6] KVM: arm64: Document MTE capability and ioctl

2021-06-21 Thread Steven Price
A new capability (KVM_CAP_ARM_MTE) identifies that the kernel supports granting a guest access to the tags, and provides a mechanism for the VMM to enable it. A new ioctl (KVM_ARM_MTE_COPY_TAGS) provides a simple way for a VMM to access the tags of a guest without having to maintain a PROT_MTE map