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authorAlex Williamson <alex.williamson@redhat.com>2025-02-25 14:52:28 -0700
committerCédric Le Goater <clg@redhat.com>2025-03-06 06:47:33 +0100
commit8b8d08cf293b930d0f55b2d5385d8dd27e0c6b41 (patch)
tree1bb1fc4a037d4951f1b7c52c306fbc9e55c170e2
parent05c6a8eff6298675080aa2692ee05a310b3483b4 (diff)
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pcie, virtio: Remove redundant pm_cap
The pm_cap on the PCIExpressDevice object can be distilled down to the new instance on the PCIDevice object. Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Link: https://lore.kernel.org/qemu-devel/20250225215237.3314011-5-alex.williamson@redhat.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
-rw-r--r--hw/pci-bridge/pcie_pci_bridge.c1
-rw-r--r--hw/virtio/virtio-pci.c8
-rw-r--r--include/hw/pci/pcie.h2
3 files changed, 3 insertions, 8 deletions
diff --git a/hw/pci-bridge/pcie_pci_bridge.c b/hw/pci-bridge/pcie_pci_bridge.c
index 9fa656b..2429503 100644
--- a/hw/pci-bridge/pcie_pci_bridge.c
+++ b/hw/pci-bridge/pcie_pci_bridge.c
@@ -56,7 +56,6 @@ static void pcie_pci_bridge_realize(PCIDevice *d, Error **errp)
if (pos < 0) {
goto pm_error;
}
- d->exp.pm_cap = pos;
pci_set_word(d->config + pos + PCI_PM_PMC, 0x3);
pcie_cap_arifwd_init(d);
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index afe8b55..3ca3f84 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -2209,8 +2209,6 @@ static void virtio_pci_realize(PCIDevice *pci_dev, Error **errp)
return;
}
- pci_dev->exp.pm_cap = pos;
-
/*
* Indicates that this function complies with revision 1.2 of the
* PCI Power Management Interface Specification.
@@ -2309,11 +2307,11 @@ static bool virtio_pci_no_soft_reset(PCIDevice *dev)
{
uint16_t pmcsr;
- if (!pci_is_express(dev) || !dev->exp.pm_cap) {
+ if (!pci_is_express(dev) || !(dev->cap_present & QEMU_PCI_CAP_PM)) {
return false;
}
- pmcsr = pci_get_word(dev->config + dev->exp.pm_cap + PCI_PM_CTRL);
+ pmcsr = pci_get_word(dev->config + dev->pm_cap + PCI_PM_CTRL);
/*
* When No_Soft_Reset bit is set and the device
@@ -2342,7 +2340,7 @@ static void virtio_pci_bus_reset_hold(Object *obj, ResetType type)
if (proxy->flags & VIRTIO_PCI_FLAG_INIT_PM) {
pci_word_test_and_clear_mask(
- dev->config + dev->exp.pm_cap + PCI_PM_CTRL,
+ dev->config + dev->pm_cap + PCI_PM_CTRL,
PCI_PM_CTRL_STATE_MASK);
}
}
diff --git a/include/hw/pci/pcie.h b/include/hw/pci/pcie.h
index b8d5973..70a5de0 100644
--- a/include/hw/pci/pcie.h
+++ b/include/hw/pci/pcie.h
@@ -58,8 +58,6 @@ typedef enum {
struct PCIExpressDevice {
/* Offset of express capability in config space */
uint8_t exp_cap;
- /* Offset of Power Management capability in config space */
- uint8_t pm_cap;
/* SLOT */
bool hpev_notified; /* Logical AND of conditions for hot plug event.