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pcie_sriov: Reset SR-IOV extended capability

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pcie_sriov_pf_disable_vfs() is called when resetting the PF, but it only
disables VFs and does not reset SR-IOV extended capability, leaking the
state and making the VF Enable register inconsistent with the actual
state.

Replace pcie_sriov_pf_disable_vfs() with pcie_sriov_pf_reset(), which
does not only disable VFs but also resets the capability.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240228-reuse-v8-3-282660281e60@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@ericsson.com>
This commit is contained in:
Akihiko Odaki 2024-02-28 20:33:14 +09:00 • committed by Michael S. Tsirkin
parent 6081b4243c
commit c8bc4db403
4 changed files with 22 additions and 12 deletions
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4
include/hw/pci/pcie_sriov.h
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@ -58,8 +58,8 @@ void pcie_sriov_pf_add_sup_pgsize(PCIDevice *dev, uint16_t opt_sup_pgsize);
void pcie_sriov_config_write(PCIDevice *dev, uint32_t address,
uint32_t val, int len);
/* Reset SR/IOV VF Enable bit to unregister all VFs */
void pcie_sriov_pf_disable_vfs(PCIDevice *dev);
/* Reset SR/IOV */
void pcie_sriov_pf_reset(PCIDevice *dev);
/* Get logical VF number of a VF - only valid for VFs */
uint16_t pcie_sriov_vf_number(PCIDevice *dev);