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# Date Author Comment
bd322087 12/04/2008 10:33 pm aliguori

Add virtio-balloon support

This adds a VirtIO based balloon driver. It uses madvise() to actually balloon
the memory when possible.

Until 2.6.27, KVM forced memory pinning so we must disable ballooning unless the
kernel actually supports it when using KVM. It's always safe when using TCG....
5832d1f2 11/24/2008 09:36 pm aliguori

kvm: Introduce kvm logging interface (Glauber Costa)

Introduce functions to control logging of memory regions.
We select regions based on its start address, a
guest_physical_addr (target_phys_addr_t, in qemu nomenclature).

The main user of this interface right now is VGA optimization...
34fc643f 11/19/2008 07:41 pm aliguori

Make KVMSlot a real structure

struct kvm_userspace_memory_region does not use QEMU friendly types to
define memory slots. This results in lots of ugly casting with warnings
on 32-bit platforms.

This patch introduces a proper KVMSlot structure that uses QEMU types to...
a3d6841f 11/19/2008 05:09 pm aliguori

kvm: de-register mem region for MMIO (Glauber Costa)

Besides unassigned memory, we also don't care about MMIO.
So if we're giving an MMIO area that is already registered,
wipe it out.

Signed-off-by: Glauber Costa <>
Signed-off-by: Anthony Liguori <>...
62d60e8c 11/18/2008 05:41 pm aliguori

Make KVM slot management more robust

KVM keeps track of physical memory based on slots in the kernel. The current
code that translates QEMU memory mappings to slots work but is not robust
in the fact of reregistering partial regions of memory.

This patch does the right thing for reregistering partial regions of memory. It...
984b5181 11/13/2008 09:21 pm aliguori

Define kvm_ioctl in the same way as ioctl

The third argument to ioctl is a ... which allows any value to be passed. In
practice, glibc always treats the argument as a void *.

Do the same thing for the kvm ioctls to keep things consistent with a
traditional ioctl....
becfc390 11/10/2008 05:55 pm aliguori

KVM: simplify kvm_cpu_exec hook

We don't need to use cpu_loop_exit() because we never use the
condition codes so everything can be folded into a single case.

Signed-off-by: Anthony Liguori <>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5669 c046a42c-6fe2-441c-8c8c-71466251a162
05330448 11/05/2008 06:29 pm aliguori

Add missing files to KVM commit.

Signed-off-by: Anthony Liguori <>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5629 c046a42c-6fe2-441c-8c8c-71466251a162