izzy/xemu
0
0
Fork 0
mirror of https://github.com/izzy2lost/xemu.git synced 2026-07-06 00:20:22 -07:00
Code Issues Packages Projects Releases Wiki Activity

vfio/pci: augment set_handler

Browse Source 
Extend vfio_pci_msi_set_handler() so it can set or clear the handler.
Add a similar accessor for INTx.  No functional change.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/1752689169-233452-2-git-send-email-steven.sistare@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Steve Sistare
2025-08-09 00:06:48 +02:00
committed by Cédric Le Goater
parent a74434580e
commit 76cfb87f5f
3 changed files with 14 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
hw/vfio/cpr.c
+1 -1
View File
@@ -70,7 +70,7 @@ static void vfio_cpr_claim_vectors(VFIOPCIDevice *vdev, int nr_vectors,
fd = vfio_cpr_load_vector_fd(vdev, "interrupt", i);
if (fd >= 0) {
vfio_pci_vector_init(vdev, i);
vfio_pci_msi_set_handler(vdev, i);
vfio_pci_msi_set_handler(vdev, i, true);
}
if (vfio_cpr_load_vector_fd(vdev, "kvm_interrupt", i) >= 0) {
hw/vfio/pci.c
+11 -2
View File
@@ -413,6 +413,14 @@ bool vfio_pci_intx_enable(VFIOPCIDevice *vdev, Error **errp)
return vfio_intx_enable(vdev, errp);
}
void vfio_pci_intx_set_handler(VFIOPCIDevice *vdev, bool enable)
{
int fd = event_notifier_get_fd(&vdev->intx.interrupt);
IOHandler *handler = (enable ? vfio_intx_interrupt : NULL);
qemu_set_fd_handler(fd, handler, NULL, vdev);
}
/*
* MSI/X
*/
@@ -451,12 +459,13 @@ static void vfio_msi_interrupt(void *opaque)
notify(&vdev->pdev, nr);
}
void vfio_pci_msi_set_handler(VFIOPCIDevice *vdev, int nr)
void vfio_pci_msi_set_handler(VFIOPCIDevice *vdev, int nr, bool enable)
{
VFIOMSIVector *vector = &vdev->msi_vectors[nr];
int fd = event_notifier_get_fd(&vector->interrupt);
IOHandler *handler = (enable ? vfio_msi_interrupt : NULL);
qemu_set_fd_handler(fd, vfio_msi_interrupt, NULL, vector);
qemu_set_fd_handler(fd, handler, NULL, vector);
}
/*
hw/vfio/pci.h
+2 -1
View File
@@ -209,8 +209,9 @@ void vfio_pci_add_kvm_msi_virq(VFIOPCIDevice *vdev, VFIOMSIVector *vector,
void vfio_pci_prepare_kvm_msi_virq_batch(VFIOPCIDevice *vdev);
void vfio_pci_commit_kvm_msi_virq_batch(VFIOPCIDevice *vdev);
bool vfio_pci_intx_enable(VFIOPCIDevice *vdev, Error **errp);
void vfio_pci_intx_set_handler(VFIOPCIDevice *vdev, bool enable);
void vfio_pci_msix_set_notifiers(VFIOPCIDevice *vdev);
void vfio_pci_msi_set_handler(VFIOPCIDevice *vdev, int nr);
void vfio_pci_msi_set_handler(VFIOPCIDevice *vdev, int nr, bool enable);
uint32_t vfio_pci_read_config(PCIDevice *pdev, uint32_t addr, int len);
void vfio_pci_write_config(PCIDevice *pdev,