Re: [Qemu-devel] [PATCH 4/6] target/i386/kvm.c: Handle renaming of KVM_HINTS_DEDICATED

[Paolo Bonzini <pbonzini@redhat.com>]

On 25/05/2018 15:27, Peter Maydell wrote:
> In kernel header commit 633711e8287, the define KVM_HINTS_DEDICATED
> was renamed to KVM_HINTS_REALTIME. Work around this compatibility
> break by (a) using the new constant name, and (b) defining it
> if the headers don't.
> 
> Part (b) can be removed once we've updated our copy of the kernel
> headers to a version that defines KVM_HINTS_REALTIME.
> 
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
> ---
>  target/i386/kvm.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/target/i386/kvm.c b/target/i386/kvm.c
> index 6511329d11..c2699f2f44 100644
> --- a/target/i386/kvm.c
> +++ b/target/i386/kvm.c
> @@ -48,6 +48,11 @@
>  #include "exec/memattrs.h"
>  #include "trace.h"
>  
> +/* Work around this kernel header constant changing its name */
> +#ifndef KVM_HINTS_REALTIME
> +#define KVM_HINTS_REALTIME KVM_HINTS_DEDICATED
> +#endif
> +
>  //#define DEBUG_KVM
>  
>  #ifdef DEBUG_KVM
> @@ -387,7 +392,7 @@ uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function,
>              ret &= ~(1U << KVM_FEATURE_PV_UNHALT);
>          }
>      } else if (function == KVM_CPUID_FEATURES && reg == R_EDX) {
> -        ret |= 1U << KVM_HINTS_DEDICATED;
> +        ret |= 1U << KVM_HINTS_REALTIME;
>          found = 1;
>      }
>  
> 

Acked-by: Paolo Bonzini <pbonzini@redhat.com>

I would be okay with squashing 4-6 too though.

Paolo