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hv: pci: add PCIe PM reset check

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Add PCIe PM reset capability check.

Tracked-On: #3465
Signed-off-by: Li Fei1 <fei1.li@intel.com>
This commit is contained in:
Li Fei1
2019-12-26 23:38:11 +08:00
committed by wenlingz
parent 26670d7ab3
commit e74a9f397d
2 changed files with 10 additions and 0 deletions
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3
hypervisor/hw/pci.c
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@@ -481,6 +481,9 @@ static void pci_read_cap(struct pci_pdev *pdev)
for (idx = 0U; idx < len; idx++) {
pdev->msix.cap[idx] = (uint8_t)pci_pdev_read_cfg(pdev->bdf, (uint32_t)pos + idx, 1U);
}
} else if (cap == PCIY_PMC) {
val = pci_pdev_read_cfg(pdev->bdf, pos + PCIR_PMCSR, 4U);
pdev->has_pm_reset = ((val & PCIM_PMCSR_NO_SOFT_RST) == 0U);
} else if (cap == PCIY_PCIE) {
pcie_devcap = pci_pdev_read_cfg(pdev->bdf, pos + PCIR_PCIE_DEVCAP, 4U);
pdev->has_flr = ((pcie_devcap & PCIM_PCIE_FLRCAP) != 0U);