bwlp/qemu.git/include/hw/s390x, branch spice_video_codecs

Revert "s390x/s390-virtio-ccw: add zpcii-disable machine property"

2022-11-08T09:10:57+00:00

This reverts commit 59d1ce44396e3ad2330dc3261ff3da7ad3a16184. The "zpcii-disable" machine property is redundant with the "interpret" zPCI device property. Remove it for clarification. Signed-off-by: Cédric Le Goater Message-Id: <20221107161349.1032730-2-clg@kaod.org> Reviewed-by: Matthew Rosato Signed-off-by: Thomas Huth

s390x/cpu topology: add max_threads machine class attribute

2022-11-06T11:38:57+00:00

The S390 CPU topology accepts the smp.threads argument while in reality it does not effectively allow multthreading. Let's keep this behavior for machines older than 7.2 and refuse to use threads in newer machines until multithreading is really exposed to the guest by the machine. Signed-off-by: Pierre Morel Message-Id: <20221103170150.20789-3-pmorel@linux.ibm.com> [thuth: Small fixes to the commit description] Signed-off-by: Thomas Huth

s390x: Add KVM PV dump interface

2022-10-26T08:54:59+00:00

Let's add a few bits of code which hide the new KVM PV dump API from us via new functions. Signed-off-by: Janosch Frank Reviewed-by: Janis Schoetterl-Glausch Reviewed-by: Steffen Eiden [ Marc-André: fix up for compilation issue ] Signed-off-by: Marc-André Lureau Message-Id: <20221017083822.43118-10-frankja@linux.ibm.com>

s390x: Introduce PV query interface

2022-10-26T08:54:59+00:00

Introduce an interface over which we can get information about UV data. Signed-off-by: Janosch Frank Reviewed-by: Steffen Eiden Reviewed-by: Janis Schoetterl-Glausch Acked-by: Thomas Huth Message-Id: <20221017083822.43118-8-frankja@linux.ibm.com>

s390x/s390-virtio-ccw: add zpcii-disable machine property

2022-09-26T15:23:47+00:00

The zpcii-disable machine property can be used to force-disable the use of zPCI interpretation facilities for a VM. By default, this setting will be off for machine 7.2 and newer. Signed-off-by: Matthew Rosato Message-Id: <20220902172737.170349-9-mjrosato@linux.ibm.com> Reviewed-by: Thomas Huth [thuth: Fix contextual conflict in ccw_machine_7_1_instance_options()] Signed-off-by: Thomas Huth

s390x/pci: let intercept devices have separate PCI groups

2022-09-26T15:23:47+00:00

Let's use the reserved pool of simulated PCI groups to allow intercept devices to have separate groups from interpreted devices as some group values may be different. If we run out of simulated PCI groups, subsequent intercept devices just get the default group. Furthermore, if we encounter any PCI groups from hostdevs that are marked as simulated, let's just assign them to the default group to avoid conflicts between host simulated groups and our own simulated groups. Signed-off-by: Matthew Rosato Reviewed-by: Pierre Morel Message-Id: <20220902172737.170349-7-mjrosato@linux.ibm.com> Signed-off-by: Thomas Huth

s390x/pci: enable adapter event notification for interpreted devices

2022-09-26T15:23:47+00:00

Use the associated kvm ioctl operation to enable adapter event notification and forwarding for devices when requested. This feature will be set up with or without firmware assist based upon the 'forwarding_assist' setting. Signed-off-by: Matthew Rosato Message-Id: <20220902172737.170349-6-mjrosato@linux.ibm.com> [thuth: Rename "forwarding_assist" property to "forwarding-assist"] Signed-off-by: Thomas Huth

s390x/pci: enable for load/store interpretation

2022-09-26T15:23:47+00:00

If the ZPCI_OP ioctl reports that is is available and usable, then the underlying KVM host will enable load/store intepretation for any guest device without a SHM bit in the guest function handle. For a device that will be using interpretation support, ensure the guest function handle matches the host function handle; this value is re-checked every time the guest issues a SET PCI FN to enable the guest device as it is the only opportunity to reflect function handle changes. By default, unless interpret=off is specified, interpretation support will always be assumed and exploited if the necessary ioctl and features are available on the host kernel. When these are unavailable, we will silently revert to the interception model; this allows existing guest configurations to work unmodified on hosts with and without zPCI interpretation support, allowing QEMU to choose the best support model available. Signed-off-by: Matthew Rosato Acked-by: Thomas Huth Message-Id: <20220902172737.170349-4-mjrosato@linux.ibm.com> Signed-off-by: Thomas Huth

s390x/pci: add routine to get host function handle from CLP info

2022-09-26T15:23:47+00:00

In order to interface with the underlying host zPCI device, we need to know its function handle. Add a routine to grab this from the vfio CLP capabilities chain. Signed-off-by: Matthew Rosato Reviewed-by: Pierre Morel Message-Id: <20220902172737.170349-3-mjrosato@linux.ibm.com> [thuth: Replace free(info) with g_free(info)] Signed-off-by: Thomas Huth

Clean up ill-advised or unusual header guards

2022-05-11T14:50:01+00:00

Leading underscores are ill-advised because such identifiers are reserved. Trailing underscores are merely ugly. Strip both. Our header guards commonly end in _H. Normalize the exceptions. Macros should be ALL_CAPS. Normalize the exception. Done with scripts/clean-header-guards.pl. include/hw/xen/interface/ and tools/virtiofsd/ left alone, because these were imported from Xen and libfuse respectively. Signed-off-by: Markus Armbruster Message-Id: <20220506134911.2856099-3-armbru@redhat.com> Reviewed-by: Richard Henderson