[Devel] [PATCH rh7 v1 02/36] kvm/x86: Vcpu based page access routines usage

[Konstantin Khorenko]

And what about other hunks from

commit 54bf36aac520315385fe7623a5c3a698e993ceda
Author: Paolo Bonzini <pbonzini at redhat.com>
Date:   Wed Apr 8 15:39:23 2015 +0200

     KVM: x86: use vcpu-specific functions to read/write/translate GFNs

     We need to hide SMRAM from guests not running in SMM.  Therefore,
     all uses of kvm_read_guest* and kvm_write_guest* must be changed to
     check whether the VCPU is in system management mode and use a
     different set of memslots.  Switch from kvm_* to the newly-introduced
     kvm_vcpu_*, which call into kvm_arch_vcpu_memslots_id.

     Reviewed-by: Radim Krčmář <rkrcmar at redhat.com>
     Signed-off-by: Paolo Bonzini <pbonzini at redhat.com>


Do we need them?

--
Best regards,

Konstantin Khorenko,
Virtuozzo Linux Kernel Team

On 02/10/2016 06:17 PM, Andrey Smetanin wrote:
> Signed-off-by: Andrey Smetanin <asmetanin at virtuozzo.com>
> ---
>   arch/x86/kvm/hyperv.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
> index 5828875..32d8d00 100644
> --- a/arch/x86/kvm/hyperv.c
> +++ b/arch/x86/kvm/hyperv.c
> @@ -187,13 +187,13 @@ static int set_msr_hyperv(struct kvm_vcpu *vcpu, u32 msr, u64 data)
>   			break;
>   		}
>   		gfn = data >> HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT;
> -		addr = gfn_to_hva(vcpu->kvm, gfn);
> +		addr = kvm_vcpu_gfn_to_hva(vcpu, gfn);
>   		if (kvm_is_error_hva(addr))
>   			return 1;
>   		if (__clear_user((void __user *)addr, PAGE_SIZE))
>   			return 1;
>   		hv->hv_vapic = data;
> -		mark_page_dirty(vcpu->kvm, gfn);
> +		kvm_vcpu_mark_page_dirty(vcpu, gfn);
>   		if (kvm_lapic_enable_pv_eoi(vcpu,
>   					    gfn_to_gpa(gfn) | KVM_MSR_ENABLED))
>   			return 1;
>