[PATCH 13/27] KVM: arm64: nv: Add FGT registers

[Eric Auger]

Hi Marc,

On 7/12/23 16:57, Marc Zyngier wrote:
> Add the 5 registers covering FEAT_FGT. The AMU-related registers
> are currently left out as we don't have a plan for them. Yet.
>
> Signed-off-by: Marc Zyngier <maz at kernel.org>
> ---
>  arch/arm64/include/asm/kvm_host.h | 5 +++++
>  arch/arm64/kvm/sys_regs.c         | 5 +++++
>  2 files changed, 10 insertions(+)
>
> diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
> index 8b6096753740..1200f29282ba 100644
> --- a/arch/arm64/include/asm/kvm_host.h
> +++ b/arch/arm64/include/asm/kvm_host.h
> @@ -400,6 +400,11 @@ enum vcpu_sysreg {
>  	TPIDR_EL2,	/* EL2 Software Thread ID Register */
>  	CNTHCTL_EL2,	/* Counter-timer Hypervisor Control register */
>  	SP_EL2,		/* EL2 Stack Pointer */
> +	HFGRTR_EL2,
> +	HFGWTR_EL2,
> +	HFGITR_EL2,
> +	HDFGRTR_EL2,
> +	HDFGWTR_EL2,
>  	CNTHP_CTL_EL2,
>  	CNTHP_CVAL_EL2,
>  	CNTHV_CTL_EL2,
> diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
> index 3a6f678ca67d..f88cd1390998 100644
> --- a/arch/arm64/kvm/sys_regs.c
> +++ b/arch/arm64/kvm/sys_regs.c
> @@ -2367,6 +2367,9 @@ static const struct sys_reg_desc sys_reg_descs[] = {
>  	EL2_REG(MDCR_EL2, access_rw, reset_val, 0),
>  	EL2_REG(CPTR_EL2, access_rw, reset_val, CPTR_NVHE_EL2_RES1),
>  	EL2_REG(HSTR_EL2, access_rw, reset_val, 0),
> +	EL2_REG(HFGRTR_EL2, access_rw, reset_val, 0),
> +	EL2_REG(HFGWTR_EL2, access_rw, reset_val, 0),
> +	EL2_REG(HFGITR_EL2, access_rw, reset_val, 0),
>  	EL2_REG(HACR_EL2, access_rw, reset_val, 0),
>  
>  	EL2_REG(TTBR0_EL2, access_rw, reset_val, 0),
> @@ -2376,6 +2379,8 @@ static const struct sys_reg_desc sys_reg_descs[] = {
>  	EL2_REG(VTCR_EL2, access_rw, reset_val, 0),
>  
>  	{ SYS_DESC(SYS_DACR32_EL2), NULL, reset_unknown, DACR32_EL2 },
> +	EL2_REG(HDFGRTR_EL2, access_rw, reset_val, 0),
> +	EL2_REG(HDFGWTR_EL2, access_rw, reset_val, 0),
>  	EL2_REG(SPSR_EL2, access_rw, reset_val, 0),
>  	EL2_REG(ELR_EL2, access_rw, reset_val, 0),
>  	{ SYS_DESC(SYS_SP_EL1), access_sp_el1},
Reviewed-by: Eric Auger <eric.auger at redhat.com>


Eric