Re: [PATCH v2 08/16] arm/arm64: KVM: Advertise SMCCC v1.1
From: Marc Zyngier
Date: Tue Jan 30 2018 - 07:28:19 EST
On 30/01/18 00:23, Russell King - ARM Linux wrote:
> On Mon, Jan 29, 2018 at 05:45:51PM +0000, Marc Zyngier wrote:
>> The new SMC Calling Convention (v1.1) allows for a reduced overhead
>> when calling into the firmware, and provides a new feature discovery
>> mechanism.
>>
>> Make it visible to KVM guests.
>>
>> Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
>> ---
>> Documentation/virtual/kvm/arm/psci.txt | 12 +++++++-----
>> arch/arm/kvm/handle_exit.c | 2 +-
>> arch/arm64/kvm/handle_exit.c | 2 +-
>> include/kvm/arm_psci.h | 2 +-
>> include/linux/arm-smccc.h | 13 +++++++++++++
>> virt/kvm/arm/psci.c | 24 +++++++++++++++++++++++-
>> 6 files changed, 46 insertions(+), 9 deletions(-)
>>
>> diff --git a/Documentation/virtual/kvm/arm/psci.txt b/Documentation/virtual/kvm/arm/psci.txt
>> index 2e49a4e9f084..aafdab887b04 100644
>> --- a/Documentation/virtual/kvm/arm/psci.txt
>> +++ b/Documentation/virtual/kvm/arm/psci.txt
>> @@ -13,7 +13,7 @@ a migration causes a different PSCI version to be exposed out of the
>> blue to an unsuspecting guest.
>>
>> In order to remedy this situation, KVM exposes a set of "firmware
>> -pseuodo-registers" that can be manipulated using the GET/SET_ONE_REG
>> +pseudo-registers" that can be manipulated using the GET/SET_ONE_REG
>
> This should surely be in patch 7?
Indeed. Thanks for the heads up.
M.
--
Jazz is not dead. It just smells funny...