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root / target-s390x @ a74cdab4

Name Size
cpu.h 33.5 kB
exec.h 1.3 kB
helper.c 17.1 kB
helpers.h 6.3 kB
kvm.c 11.4 kB
machine.c 930 Bytes
op_helper.c 73.7 kB
translate.c 162 kB

Latest revisions

# Date Author Comment
a74cdab4 05/20/2011 06:35 pm Christian Borntraeger

s390x: Fix debugging for unknown sigp order codes

On unknown sigp order codes we print a debug message. This patch
fixes the output, since we want to see the order_code and not
the register numbers.
Patch applies on agraf tree.

Signed-off-by: Christian Borntraeger <>...

71b12d31 05/20/2011 06:35 pm Christian Borntraeger

s390x: fix smp support for kvm

Currently smp support for kvm does not work. Qemu does a kvm run even on
secondary CPUs which dont have a sane state (initial psw == 0)
triggering some program faults. Architecturally these cpus are in the stopped
state, so we should not do the kvm run ioctl. (these CPUs will be started...

1f206266 05/20/2011 06:35 pm Alexander Graf

s390x: make kvm exported functions conditional on kvm

We have some helper functions we use to directly invoke KVM
functionality from device emulation code.

This patch replaces those exported functions with static inline
stubs when not building with KVM enabled....

d1ff903c 05/20/2011 06:35 pm Alexander Graf

s390x: keep hint on virtio managing size

The s390x virtio bus keeps management information on virtio after the top
of the guest's RAM. We need to be able to tell the guest the size of its
RAM (without virtio stuff), but also be able to trap when the guest accesses...

4e836781 05/20/2011 06:35 pm Alexander Graf

s390x: Shift variables in CPUState for memset(0)

The default reset handler does a memset(0) until right in between CPU_COMMON.
I incorrectly changed that behavior on the s390x port, so let's move the fields
in CPUState around to reflect the correct split up to which point memset(0)...

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 <>

81f7c56c 05/20/2011 06:35 pm Alexander Graf

s390x: Adjust internal kvm code

We're now finally emulating an s390x CPU, so we can move quite some logic
from the kvm code out into generic CPU code.

This patch does this and adjusts the interfaces according to what the code
around now expects to be able to call....

e023e832 05/20/2011 06:35 pm Alexander Graf

s390x: translate engine for s390x CPU

This is the main meat part of the patch set. It implements emulation for an
s390x CPU.

The code does all the optimizations that are common for TCG code:

- direct branches
- cc optimization
- unrolling of simple microcode loops...
fe9b35b7 05/20/2011 06:35 pm Alexander Graf

s390x: remove compatibility cc field

Remove the now unused cc field that was only required to not break

Signed-off-by: Alexander Graf <>

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