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Re: [Qemu-devel] [PATCH V9 1/4] mem: add share parameter to memory-backe
Re: [Qemu-devel] [PATCH V9 1/4] mem: add share parameter to memory-backend-ram
Thu, 8 Feb 2018 19:00:35 -0200
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