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# Date Author Comment
1162c041 06/26/2011 09:25 pm Blue Swirl

cpu_loop_exit: avoid using AREG0

Make cpu_loop_exit() take a parameter for CPUState instead of relying
on global env.

Signed-off-by: Blue Swirl <>
af2be207 06/26/2011 08:35 pm Jan Kiszka

Fix fallouts from Linux header inclusion

This is an all-in-one fix for the smaller and bigger mistakes of the
build system changes for accompanied Linux headers:
- only enable KVM and vhost on Linux hosts
- fix powerpc asm header symlink
- do not use Linux headers on non-Linux hosts...
e205c790 06/20/2011 09:16 pm Jan Kiszka

Switch build system to accompanied kernel headers

This helps reducing our build-time checks for feature support in the
available Linux kernel headers. And it helps users that do not have
sufficiently recent headers installed on their build machine.

Consequently, the patch removes and build-time checks for kvm and vhost...
5b185639 06/03/2011 02:34 pm Alexander Graf

s390x: fix cksm instruction

The cksm instruction was implemented incorrectly, rendering UDP and TCP
checksum calculation wrong, making an emulated s390x Linux guest break
in most networking operations.

This patch fixes odd end checksum calculation, takes the input register...
22486aa0 05/20/2011 06:35 pm Christian Borntraeger

s390x: fix memory detection for guests > 64GB

the s390 memory detection has a 16bit field that specifies the amount of
increments. This patch adopts the memory size to always fit into that
scheme. This also fixes virtio detection for these guests, since the...
d5a43964 05/20/2011 06:35 pm Alexander Graf

s390x: helper functions for system emulation

When running system emulation, we need to transverse through the MMU and
deliver interrupts according to the specification.

This patch implements those two pieces and in addition adjusts the CPU
initialization code to account for the new fields in CPUState....
defb0e31 05/20/2011 06:35 pm Alexander Graf

s390x: Implement opcode helpers

There are some instructions that can't (or shouldn't) be expressed by pure
tcg code. For those, we call into externally compiled C functions.

This patch implements those C functions.

Signed-off-by: Alexander Graf <>
618ba8e6 04/20/2011 11:37 am Stefan Weil

Remove unused function parameter from cpu_restore_state

The previous patch removed the need for parameter puc.
Is is now unused, so remove it.

Cc: Aurelien Jarno <>
Reviewed-by: Peter Maydell <>
Signed-off-by: Stefan Weil <>
70539e18 03/07/2010 05:48 pm Blue Swirl

Update to a hopefully more future proof FSF address

See also 8167ee883931cb20c6264fc19d040ce2dc6ceaaa,
530e7615ce3c01882e582c84dc6304ab98a3d5c5 and
fad6cb1a565bb73f83fc0e2654489457b489e436.

Signed-off-by: Blue Swirl <>
10ec5117 12/05/2009 06:36 pm Alexander Graf

S/390 CPU fake emulation

Because Qemu currently requires a TCG target to exist and there are quite some
useful helpers here to lay the groundwork for out KVM target, let's create a
stub TCG emulation target for S390X CPUs.

This is required to make tcg happy. The emulation target itself won't work...