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Re: [Qemu-devel] [PATCH] kvm: align ram_size to page boundary


From: Jan Kiszka
Subject: Re: [Qemu-devel] [PATCH] kvm: align ram_size to page boundary
Date: Sun, 17 Jun 2012 13:03:29 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666

On 2012-06-17 10:47, Avi Kivity wrote:
> kvm is not able to execute out of partial pages; align the RAM size
> so partial pages aren't present.
> 
> Reported-by: Michael Tokarev <address@hidden>
> Signed-off-by: Avi Kivity <address@hidden>
> ---
>  kvm-all.c |    2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/kvm-all.c b/kvm-all.c
> index 4ea7d85..482768f 100644
> --- a/kvm-all.c
> +++ b/kvm-all.c
> @@ -1311,6 +1311,8 @@ int kvm_init(void)
>  
>      cpu_interrupt_handler = kvm_handle_interrupt;
>  
> +    ram_size = TARGET_PAGE_ALIGN(ram_size);
> +
>      return 0;
>  
>  err:

I think this should rather go into generic code. What sense does it make
to have partial pages with TCG?

Jan

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