similar to: [PATCHv2-RFC 0/2] qemu-kvm: MSI-X support

Resending. Incorporated a minor fix pointed out by Isaku Yamahata. Here is the port of MSI-X support patches to upstream qemu. Please comment or commit. This patchset adds generic support for MSI-X, adds implementation in APIC, and uses MSI-X in virtio-net. At Paul's suggestion, I use stl_phy to decouple APIC and MSI-X implementation. This uses the mask table patch that I posted previously,

Resending. Incorporated a minor fix pointed out by Isaku Yamahata. Here is the port of MSI-X support patches to upstream qemu. Please comment or commit. This patchset adds generic support for MSI-X, adds implementation in APIC, and uses MSI-X in virtio-net. At Paul's suggestion, I use stl_phy to decouple APIC and MSI-X implementation. This uses the mask table patch that I posted previously,

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

Here is the port of MSI-X support patches to upstream qemu. Anthony, you said you are willing to borrow a few cycles to help MSI-X go in through QEMU - could you please comment or commit? This patchset adds generic support for MSI-X, adds implementation in APIC, and uses MSI-X in virtio-net. At Paul's suggestion, I use stl_phy to decouple APIC and MSI-X implementation. This is on top of

Here is the port of MSI-X support patches to upstream qemu. Anthony, you said you are willing to borrow a few cycles to help MSI-X go in through QEMU - could you please comment or commit? This patchset adds generic support for MSI-X, adds implementation in APIC, and uses MSI-X in virtio-net. At Paul's suggestion, I use stl_phy to decouple APIC and MSI-X implementation. This is on top of

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

Here is the port of MSI-X support patches to upstream qemu. Please comment or commit. This patchset adds generic support for MSI-X, adds implementation in APIC, and uses MSI-X in virtio-net. At Paul's suggestion, I use stl_phy to decouple APIC and MSI-X implementation. This uses the mask table patch that I posted previously, and which is now included in the series. -- MST Changelog: v3:

Here is the port of MSI-X support patches to upstream qemu. Please comment or commit. This patchset adds generic support for MSI-X, adds implementation in APIC, and uses MSI-X in virtio-net. At Paul's suggestion, I use stl_phy to decouple APIC and MSI-X implementation. This uses the mask table patch that I posted previously, and which is now included in the series. -- MST Changelog: v3:

Here is the port of MSI-X support patches to upstream qemu. Please comment or commit. This patchset adds generic support for MSI-X, adds implementation in APIC, and uses MSI-X in virtio-net. Changelog: - since v3 call to resize_region on load split patches a bit differently to address style comments by Glauber update commit message to clarify what msix_support flag does - since v2 rename

Here is the port of MSI-X support patches to upstream qemu. Please comment or commit. This patchset adds generic support for MSI-X, adds implementation in APIC, and uses MSI-X in virtio-net. Changelog: - since v3 call to resize_region on load split patches a bit differently to address style comments by Glauber update commit message to clarify what msix_support flag does - since v2 rename

Here is the port of MSI-X support patches to upstream qemu. Please comment or commit. This patchset adds generic support for MSI-X, adds implementation in APIC, and uses MSI-X in virtio-net. Changelog: - since v4 rebased to latest bits. rename resize_region -> resize_bar - since v3 call to resize_region on load split patches a bit differently to address style comments by Glauber

Here is the port of MSI-X support patches to upstream qemu. Please comment or commit. This patchset adds generic support for MSI-X, adds implementation in APIC, and uses MSI-X in virtio-net. Changelog: - since v4 rebased to latest bits. rename resize_region -> resize_bar - since v3 call to resize_region on load split patches a bit differently to address style comments by Glauber

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

Here is the port of MSI-X support patches to upstream qemu. Please comment or commit. This patchset adds generic support for MSI-X, adds implementation in APIC, and uses MSI-X in virtio-net. Changelog: - since v5 make sure that load does not modify registers that guest can not change replace global msix disable flag with a per-device flag to control the number of vectors - since v4 rebased

Here is the port of MSI-X support patches to upstream qemu. Please comment or commit. This patchset adds generic support for MSI-X, adds implementation in APIC, and uses MSI-X in virtio-net. Changelog: - since v5 make sure that load does not modify registers that guest can not change replace global msix disable flag with a per-device flag to control the number of vectors - since v4 rebased

Don't add an option for platforms to disable MSI-X in all devices. Paul Brook will find and fix all platforms that have broken MSI-X emulation. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- This patch on top of my msix series v6 is a bit tongue in cheek: it shows what can be done and Paul seems to think it's a good idea. So even though I don't necessarily agree,

Don't add an option for platforms to disable MSI-X in all devices. Paul Brook will find and fix all platforms that have broken MSI-X emulation. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- This patch on top of my msix series v6 is a bit tongue in cheek: it shows what can be done and Paul seems to think it's a good idea. So even though I don't necessarily agree,