Hi Alexandru,
On 1/12/21 5:16 PM, Alexandru Elisei wrote:
> Hi Eric,
>
> On 1/12/21 4:04 PM, Alexandru Elisei wrote:
>> Hi Eric,
>>
>> On 12/12/20 6:50 PM, Eric Auger wrote:
>>> Instead of converting the vgic_io_device handle to a kvm_io_device
>>> handled and then do the oppositive, pass a vgic_io_device pointer all
>>> along the call chain.
>> To me, it looks like the commit message describes what the patch does instead of
>> why it does it.
>>
>> What are "vgic_io_device handle" and "kvm_io_device handled"?
Yes unfortunate typo, sorry.
>
> Sorry, I think I got it now. You were referring to the argument types struct
> vgic_io_device and struct kvm_io_device. The patch looks like a very good cleanup.
>
> How changing to commit message to sound something like this (feel free to
> ignore/change it if you think of something else):
>
> vgic_uaccess() takes a struct vgic_io_device argument, converts it to a struct
> kvm_io_device and passes it to the read/write accessor functions, which convert it
> back to a struct vgic_io_device. Avoid the indirection by passing the struct
> vgic_io_device argument directly to vgic_uaccess_{read,write).
I reworded the commit message as you suggested.
Thanks
Eric
>
> Thanks,
> Alex
>>
>> Thanks,
>> Alex
>>> Signed-off-by: Eric Auger <eric.auger@xxxxxxxxxx>
>>> ---
>>> arch/arm64/kvm/vgic/vgic-mmio.c | 10 ++++------
>>> 1 file changed, 4 insertions(+), 6 deletions(-)
>>>
>>> diff --git a/arch/arm64/kvm/vgic/vgic-mmio.c b/arch/arm64/kvm/vgic/vgic-mmio.c
>>> index b2d73fc0d1ef..48c6067fc5ec 100644
>>> --- a/arch/arm64/kvm/vgic/vgic-mmio.c
>>> +++ b/arch/arm64/kvm/vgic/vgic-mmio.c
>>> @@ -938,10 +938,9 @@ vgic_get_mmio_region(struct kvm_vcpu *vcpu, struct vgic_io_device *iodev,
>>> return region;
>>> }
>>>
>>> -static int vgic_uaccess_read(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
>>> +static int vgic_uaccess_read(struct kvm_vcpu *vcpu, struct vgic_io_device *iodev,
>>> gpa_t addr, u32 *val)
>>> {
>>> - struct vgic_io_device *iodev = kvm_to_vgic_iodev(dev);
>>> const struct vgic_register_region *region;
>>> struct kvm_vcpu *r_vcpu;
>>>
>>> @@ -960,10 +959,9 @@ static int vgic_uaccess_read(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
>>> return 0;
>>> }
>>>
>>> -static int vgic_uaccess_write(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
>>> +static int vgic_uaccess_write(struct kvm_vcpu *vcpu, struct vgic_io_device *iodev,
>>> gpa_t addr, const u32 *val)
>>> {
>>> - struct vgic_io_device *iodev = kvm_to_vgic_iodev(dev);
>>> const struct vgic_register_region *region;
>>> struct kvm_vcpu *r_vcpu;
>>>
>>> @@ -986,9 +984,9 @@ int vgic_uaccess(struct kvm_vcpu *vcpu, struct vgic_io_device *dev,
>>> bool is_write, int offset, u32 *val)
>>> {
>>> if (is_write)
>>> - return vgic_uaccess_write(vcpu, &dev->dev, offset, val);
>>> + return vgic_uaccess_write(vcpu, dev, offset, val);
>>> else
>>> - return vgic_uaccess_read(vcpu, &dev->dev, offset, val);
>>> + return vgic_uaccess_read(vcpu, dev, offset, val);
>>> }
>>>
>>> static int dispatch_mmio_read(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
>> _______________________________________________
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>
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