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# Date Author Comment
d4a3ef69 06/03/2011 02:34 pm Stefan Weil

target-s390x: Fix build for non-linux hosts

linux/kvm.h is not always available for compilation.

Neither linux/kvm.h nor kvm.h are needed, so remove both
which also fixes the build problem for non-linux hosts.

Cc: Alexander Graf <>
Signed-off-by: Stefan Weil <>...
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....
3110e292 04/18/2011 09:51 pm Alexander Graf

s390x: Enable s390x-softmmu target

This patch adds some code paths for running s390x guest OSs without the
need for KVM.

Signed-off-by: Alexander Graf <>
Signed-off-by: Aurelien Jarno <>
c92114b1 04/01/2010 10:51 pm Alexander Graf

S390: Add stub for cpu_get_phys_page_debug

We don't implement any virtual memory in the S390 target so far, so let's
add a stub for this now mandatory function.

Fixes building of S390 target.

Signed-off-by: Alexander Graf <>
Signed-off-by: Aurelien Jarno <>
d4c430a8 03/17/2010 04:44 am Paul Brook

Large page TLB flush

QEMU uses a fixed page size for the CPU TLB. If the guest uses large
pages then we effectively split these into multiple smaller pages, and
populate the corresponding TLB entries on demand.

When the guest invalidates the TLB by virtual address we must invalidate...
4fcc562b 03/12/2010 08:34 pm Paul Brook

Remove cpu_get_phys_page_debug from userspace emulation

cpu_get_phys_page_debug makes no sense for userspace emulation, so remove it.

Signed-off-by: Paul Brook <>
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 <>
10c339a0 12/05/2009 06:36 pm Alexander Graf

Add support for S390x system emulation

Let's enable the basics for system emulation so we can run virtual machines
with KVM!

Signed-off-by: Alexander Graf <>
Signed-off-by: Aurelien Jarno <>
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...