On Thu, Aug 3, 2017 at 7:55 PM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> On Thu, Jul 20, 2017 at 01:15:34PM +0200, Christoffer Dall wrote:
>> From: Hu Huajun <huhuajun@xxxxxxxxxx>
>>
>> Commit 02d50cdaff36c135d222015cffdca3ff11d168ea upstream.
>>
>> When reading the cntpct_el0 in guest with VHE (Virtual Host Extension)
>> enabled in host, the "Unsupported guest sys_reg access" error reported.
>> The reason is cnthctl_el2.EL1PCTEN is not enabled, which is expected
>> to be done in kvm_timer_init_vhe(). The problem is kvm_timer_init_vhe
>> is called by cpu_init_hyp_mode, and which is called when VHE is disabled.
>> This patch remove the incorrect call to kvm_timer_init_vhe() from
>> cpu_init_hyp_mode(), and calls kvm_timer_init_vhe() to enable
>> cnthctl_el2.EL1PCTEN in cpu_hyp_reinit().
>>
>> Fixes: 488f94d7212b ("KVM: arm64: Access CNTHCTL_EL2 bit fields correctly on VHE systems")
>> Cc: stable@xxxxxxxxxxxxxxx
>> Signed-off-by: Hu Huajun <huhuajun@xxxxxxxxxx>
>> Reviewed-by: Christoffer Dall <cdall@xxxxxxxxxx>
>> Acked-by: Marc Zyngier <marc.zyngier@xxxxxxx>
>> Signed-off-by: Christoffer Dall <cdall@xxxxxxxxxx>
>> ---
>> arch/arm/kvm/arm.c | 4 +---
>> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> 4.11 is now end-of-life, sorry.
>
That's fine, although I did receive a notice on July 18th that this
patch didn't apply, and sent this two days later.
I see now that EOL happened the day after that, so probably nobody
cares about this.
Thanks,
-Christoffer