Re: [RFC PATCH 16/27] KVM: arm64: Prepare Hyp memory protection

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Dec 07, 2020 at 02:11:20PM +0000, Quentin Perret wrote:
> On Monday 07 Dec 2020 at 13:40:52 (+0000), Will Deacon wrote:
> > Why not use the RESERVEDMEM_OF_DECLARE() interface for the hypervisor
> > memory? That way, the hypervisor memory can either be statically partitioned
> > as a carveout or allocated dynamically for us -- we wouldn't need to care.
> 
> Yup, I did consider that, but the actual amount of memory we need to
> reserve for the hypervisor depends on things such as the size of struct
> hyp_page, which depends on the kernel you're running (that is, it might
> change over time). So, that really felt like something the kernel should
> be doing, to keep the DT backward compatible, ... Or did you have
> something more elaborate in mind?

No, that's fair. Just wanted to make sure we had a good reason not to use
the existing memory reservation code.

Will
_______________________________________________
kvmarm mailing list
kvmarm@xxxxxxxxxxxxxxxxxxxxx
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm



[Index of Archives]     [Linux KVM]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux