* Peter Xu (pet...@redhat.com) wrote:
> Add a parameter for size of dirty ring. If zero, dirty ring is
> disabled. Otherwise dirty ring will be enabled with the per-vcpu size
> as specified. If dirty ring cannot be enabled due to unsupported
> kernel, it'll fallback to dirty logging. By default, dirty ring is
> not enabled (dirty-ring-size==0).
>
> Signed-off-by: Peter Xu <pet...@redhat.com>
> ---
<snip>
> diff --git a/qemu-options.hx b/qemu-options.hx
> index 224a8e8712..140bd38726 100644
> --- a/qemu-options.hx
> +++ b/qemu-options.hx
> @@ -119,6 +119,7 @@ DEF("accel", HAS_ARG, QEMU_OPTION_accel,
> " kernel-irqchip=on|off|split controls accelerated
> irqchip support (default=on)\n"
> " kvm-shadow-mem=size of KVM shadow MMU in bytes\n"
> " tb-size=n (TCG translation block cache size)\n"
> + " dirty-ring-size=n (KVM dirty ring size in Bytes)\n"
> " thread=single|multi (enable multi-threaded TCG)\n",
> QEMU_ARCH_ALL)
> STEXI
> @item -accel @var{name}[,prop=@var{value}[,...]]
> @@ -140,6 +141,8 @@ irqchip completely is not recommended except for
> debugging purposes.
> Defines the size of the KVM shadow MMU.
> @item tb-size=@var{n}
> Controls the size (in MiB) of the TCG translation block cache.
> +@item dirty-ring-size=@val{n}
> +Controls the size (in Bytes) of KVM dirty ring (<=0 to disable).
I think that needs to say 'per vcpu'
Dave
> @item thread=single|multi
> Controls number of TCG threads. When the TCG is multi-threaded there will be
> one
> thread per vCPU therefor taking advantage of additional host cores. The
> default
> --
> 2.24.1
>
>
--
Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
