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ivshmem: Store file descriptor for vhost-user negotiation

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If virtio-net driver allocates memory in ivshmem shared memory,
vhost-net will work correctly, but vhost-user will not work because
a fd of shared memory will not be sent to vhost-user backend.
This patch fixes ivshmem to store file descriptor of shared memory.
It will be used when vhost-user negotiates vhost-user backend.

Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Tetsuya Mukawa 2015-12-21 12:47:34 +09:00 • committed by Michael S. Tsirkin
parent 50e5ae4dc3
commit 56a571d9c8
3 changed files with 18 additions and 2 deletions
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1
include/exec/ram_addr.h
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@ -72,6 +72,7 @@ ram_addr_t qemu_ram_alloc_resizeable(ram_addr_t size, ram_addr_t max_size,
void *host),
MemoryRegion *mr, Error **errp);
int qemu_get_ram_fd(ram_addr_t addr);
void qemu_set_ram_fd(ram_addr_t addr, int fd);
void *qemu_get_ram_block_host_ptr(ram_addr_t addr);
void qemu_ram_free(ram_addr_t addr);