If someone wanted to play around with ksm in qemu-kvm-0.x.x would it be as
simple as adding the below additions to kvm_setup_guest_memory in kvm-all.c
(and adding the necessary kernel changes of course)?
On Tuesday 28 July 2009 11:39:59 am Izik Eidus wrote:
> This patch is not for inclusion just rfc.
>
> Thanks.
>
>
> From 1297b86aa257100b3d819df9f9f0932bf4f7f49d Mon Sep 17 00:00:00 2001
> From: Izik Eidus <ieidus@xxxxxxxxxx>
> Date: Tue, 28 Jul 2009 19:14:26 +0300
> Subject: [PATCH] kvm userspace: ksm support
>
> rfc for ksm support to kvm userpsace.
>
> thanks
>
> Signed-off-by: Izik Eidus <ieidus@xxxxxxxxxx>
> ---
> exec.c | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/exec.c b/exec.c
> index f6d9ec9..375cc18 100644
> --- a/exec.c
> +++ b/exec.c
> @@ -2595,6 +2595,9 @@ ram_addr_t qemu_ram_alloc(ram_addr_t size)
> new_block->host = file_ram_alloc(size, mem_path);
> if (!new_block->host) {
> new_block->host = qemu_vmalloc(size);
> +#ifdef MADV_MERGEABLE
> + madvise(new_block->host, size, MADV_MERGEABLE);
> +#endif
> }
> new_block->offset = last_ram_offset;
> new_block->length = size;
--
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