Re: [PATCH v20 22/22] KVM: arm64: CCA: Control user register access for Realms

[Catalin Marinas]

On Thu, Sep 24, 2026 at 05:05:04PM +0100, Suzuki K Poulose wrote:
> From: Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx>
> 
> The RMM restricts the access to the register states that the host can
> read/modify for a given Realm.
> 
> e.g., At VCPU creation, can modify GPRS (x0-x30) and PC.
>       While servicing SMCCC calls via RSI_HOST_CALL or servicing PSCI
>       requests.
>       MMIO emulation in the unprotected space.
> 
> Additionally we use the sysreg configuration to advertise/configure the
> following Realm parameters, which are required before the Realm Descriptor
> :w

Should use Emacs ;)

-- 
Catalin