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util: Make qemu_prealloc_mem() optionally consume a ThreadContext

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... and implement it under POSIX. When a ThreadContext is provided,
create new threads via the context such that these new threads obtain a
properly configured CPU affinity.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Message-Id: <20221014134720.168738-6-david@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
This commit is contained in:
David Hildenbrand 2022-10-14 15:47:18 +02:00
parent 10218ae6d0
commit e04a34e55c
5 changed files with 22 additions and 11 deletions
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2
hw/virtio/virtio-mem.c
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@ -467,7 +467,7 @@ static int virtio_mem_set_block_state(VirtIOMEM *vmem, uint64_t start_gpa,
int fd = memory_region_get_fd(&vmem->memdev->mr);
Error *local_err = NULL;
qemu_prealloc_mem(fd, area, size, 1, &local_err);
qemu_prealloc_mem(fd, area, size, 1, NULL, &local_err);
if (local_err) {
static bool warned;