[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH V9 1/4] mem: add share parameter to memory-backe
From: |
Eduardo Habkost |
Subject: |
Re: [Qemu-devel] [PATCH V9 1/4] mem: add share parameter to memory-backend-ram |
Date: |
Thu, 8 Feb 2018 19:00:35 -0200 |
User-agent: |
Mutt/1.9.1 (2017-09-22) |
On Thu, Feb 01, 2018 at 10:55:08PM +0200, Marcel Apfelbaum wrote:
> Currently only file backed memory backend can
> be created with a "share" flag in order to allow
> sharing guest RAM with other processes in the host.
>
> Add the "share" flag also to RAM Memory Backend
> in order to allow remapping parts of the guest RAM
> to different host virtual addresses. This is needed
> by the RDMA devices in order to remap non-contiguous
> QEMU virtual addresses to a contiguous virtual address range.
>
> Moved the "share" flag to the Host Memory base class,
> modified phys_mem_alloc to include the new parameter
> and a new interface memory_region_init_ram_shared_nomigrate.
>
> There are no functional changes if the new flag is not used.
>
> Signed-off-by: Marcel Apfelbaum <address@hidden>
Code looks correct, so:
Reviewed-by: Eduardo Habkost <address@hidden>
But later can we please stop the explosion of memory_init_ram*()
functions and replace them with a single function with a flags
parameter?
--
Eduardo