similar to: [PATCH 05/11] qemu: MSI-X support functions

Add functions implementing MSI-X support. First user will be virtio-pci. Note that platform must set a flag to declare MSI supported. For PC this will be set by APIC. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Makefile.target | 2 +- hw/msix.c | 423 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ hw/msix.h | 35 +++++ hw/pci.h | 20 +++ 4

Add functions implementing MSI-X support. First user will be virtio-pci. Note that platform must set a flag to declare MSI supported. For PC this will be set by APIC. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Makefile.target | 2 +- hw/msix.c | 423 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ hw/msix.h | 35 +++++ hw/pci.h | 20 +++ 4

Add functions implementing MSI-X support. First user will be virtio-pci. Note that platform must set a flag to declare MSI supported: this is a safety measure to avoid breaking platforms which should support MSI-X but currently lack this in the interrupt controller emulation. For PC this will be set by APIC. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Makefile.target | 2

Add functions implementing MSI-X support. First user will be virtio-pci. Note that platform must set a flag to declare MSI supported: this is a safety measure to avoid breaking platforms which should support MSI-X but currently lack this in the interrupt controller emulation. For PC this will be set by APIC. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Makefile.target | 2

Add functions implementing MSI-X support. First user will be virtio-pci. Note that platform must set a flag to declare MSI supported: this is a safety measure to avoid breaking platforms which should support MSI-X but currently lack this in the interrupt controller emulation. For PC this will be set by APIC. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Makefile.target | 2

Add functions implementing MSI-X support. First user will be virtio-pci. Note that platform must set a flag to declare MSI supported: this is a safety measure to avoid breaking platforms which should support MSI-X but currently lack this in the interrupt controller emulation. For PC this will be set by APIC. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Makefile.target | 2

Add functions implementing MSI-X support. First user will be virtio-pci. Note that platform must set a flag to declare MSI supported: this is a safety measure to avoid breaking platforms which should support MSI-X but currently lack this in the interrupt controller emulation. For PC this will be set by APIC. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Makefile.target | 2

Add functions implementing MSI-X support. First user will be virtio-pci. Note that platform must set a flag to declare MSI supported: this is a safety measure to avoid breaking platforms which should support MSI-X but currently lack this in the interrupt controller emulation. For PC this will be set by APIC. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Makefile.target | 2

Add functions implementing MSI-X support. First user will be virtio-pci. Note that platform must set a flag to declare MSI supported. For PC this will be set by APIC. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Makefile.target | 2 +- hw/msix.c | 423 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ hw/msix.h | 35 +++++ hw/pci.h | 20 +++ 4

Add functions implementing MSI-X support. First user will be virtio-pci. Note that platform must set a flag to declare MSI supported. For PC this will be set by APIC. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Makefile.target | 2 +- hw/msix.c | 423 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ hw/msix.h | 35 +++++ hw/pci.h | 20 +++ 4

This adds MSI-X support infrastructure and uses that to enable MSI-X support in virtio net device. Also add a global option to disable MSI-X. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Makefile.target | 2 +- hw/device-assignment.c | 2 + hw/msix.c | 447 ++++++++++++++++++++++++++++++++++++++++++++++++ hw/msix.h | 38 ++++ hw/pci.c

This adds MSI-X support infrastructure and uses that to enable MSI-X support in virtio net device. Also add a global option to disable MSI-X. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Makefile.target | 2 +- hw/device-assignment.c | 2 + hw/msix.c | 447 ++++++++++++++++++++++++++++++++++++++++++++++++ hw/msix.h | 38 ++++ hw/pci.c

This adds (incomplete) MSI-X support to virtio net device. Missing is save/load support, and command-line flag to control the feature. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Makefile.target | 2 +- hw/msix.c | 362 +++++++++++++++++++++++++++++++++++++++++++++++++++ hw/msix.h | 33 +++++ hw/pci.c | 35 ++++-- hw/pci.h

This adds (incomplete) MSI-X support to virtio net device. Missing is save/load support, and command-line flag to control the feature. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Makefile.target | 2 +- hw/msix.c | 362 +++++++++++++++++++++++++++++++++++++++++++++++++++ hw/msix.h | 33 +++++ hw/pci.c | 35 ++++-- hw/pci.h

For assigned devices, use common code to enable msi-x. We need a special "assigned" option as assigned devices lack a standard way to get vector usage. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- hw/device-assignment.c | 329 ++++++++++++------------------------------------ hw/device-assignment.h | 7 +- hw/msix.c | 9 ++- hw/pci.h

For assigned devices, use common code to enable msi-x. We need a special "assigned" option as assigned devices lack a standard way to get vector usage. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- hw/device-assignment.c | 329 ++++++++++++------------------------------------ hw/device-assignment.h | 7 +- hw/msix.c | 9 ++- hw/pci.h

For assigned devices, use common code to enable msi-x. Add "hack" option as assigned devices lack a standard way to get vector usage. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- hw/device-assignment.c | 336 ++++++++++++------------------------------------ hw/device-assignment.h | 8 +- hw/msix.c | 11 ++- hw/pci.h | 4 + 4 files

For assigned devices, use common code to enable msi-x. Add "hack" option as assigned devices lack a standard way to get vector usage. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- hw/device-assignment.c | 336 ++++++++++++------------------------------------ hw/device-assignment.h | 8 +- hw/msix.c | 11 ++- hw/pci.h | 4 + 4 files

Add routines to manage PCI capability list. First user will be MSI-X. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- hw/pci.c | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++------ hw/pci.h | 18 +++++++++++- 2 files changed, 106 insertions(+), 10 deletions(-) diff --git a/hw/pci.c b/hw/pci.c index 361d741..ed011b5 100644 --- a/hw/pci.c +++ b/hw/pci.c @@

Add routines to manage PCI capability list. First user will be MSI-X. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- hw/pci.c | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++------ hw/pci.h | 18 +++++++++++- 2 files changed, 106 insertions(+), 10 deletions(-) diff --git a/hw/pci.c b/hw/pci.c index 361d741..ed011b5 100644 --- a/hw/pci.c +++ b/hw/pci.c @@