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Received-SPF: pass client-ip=80.78.11.85; envelope-from=clement.mathieu--drif@eviden.com; helo=smarthost4.eviden.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @eviden.com) X-ZM-MESSAGEID: 1714663943092100001 Signed-off-by: Cl=C3=A9ment Mathieu--Drif --- hw/pci/pci.c | 24 ++++++++++++++---------- include/hw/pci/pci_device.h | 1 + 2 files changed, 15 insertions(+), 10 deletions(-) diff --git a/hw/pci/pci.c b/hw/pci/pci.c index 045d69f4c1..e5f72f9f1d 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -116,6 +116,12 @@ static GSequence *pci_acpi_index_list(void) return used_acpi_index_list; } =20 +static void pci_set_master(PCIDevice *d, bool enable) +{ + memory_region_set_enabled(&d->bus_master_enable_region, enable); + d->is_master =3D enable; /* cache the status */ +} + static void pci_init_bus_master(PCIDevice *pci_dev) { AddressSpace *dma_as =3D pci_device_iommu_address_space(pci_dev); @@ -123,7 +129,7 @@ static void pci_init_bus_master(PCIDevice *pci_dev) memory_region_init_alias(&pci_dev->bus_master_enable_region, OBJECT(pci_dev), "bus master", dma_as->root, 0, memory_region_size(dma_as->r= oot)); - memory_region_set_enabled(&pci_dev->bus_master_enable_region, false); + pci_set_master(pci_dev, false); memory_region_add_subregion(&pci_dev->bus_master_container_region, 0, &pci_dev->bus_master_enable_region); } @@ -657,9 +663,8 @@ static int get_pci_config_device(QEMUFile *f, void *pv,= size_t size, pci_bridge_update_mappings(PCI_BRIDGE(s)); } =20 - memory_region_set_enabled(&s->bus_master_enable_region, - pci_get_word(s->config + PCI_COMMAND) - & PCI_COMMAND_MASTER); + pci_set_master(s, + pci_get_word(s->config + PCI_COMMAND) & PCI_COMMAND_MAS= TER); =20 g_free(config); return 0; @@ -1611,9 +1616,9 @@ void pci_default_write_config(PCIDevice *d, uint32_t = addr, uint32_t val_in, int =20 if (ranges_overlap(addr, l, PCI_COMMAND, 2)) { pci_update_irq_disabled(d, was_irq_disabled); - memory_region_set_enabled(&d->bus_master_enable_region, - (pci_get_word(d->config + PCI_COMMAND) - & PCI_COMMAND_MASTER) && d->has_power); + pci_set_master(d, + (pci_get_word(d->config + PCI_COMMAND) & + PCI_COMMAND_MASTER) && d->has_power); } =20 msi_write_config(d, addr, val_in, l); @@ -2888,9 +2893,8 @@ void pci_set_power(PCIDevice *d, bool state) =20 d->has_power =3D state; pci_update_mappings(d); - memory_region_set_enabled(&d->bus_master_enable_region, - (pci_get_word(d->config + PCI_COMMAND) - & PCI_COMMAND_MASTER) && d->has_power); + pci_set_master(d, (pci_get_word(d->config + PCI_COMMAND) + & PCI_COMMAND_MASTER) && d->has_power); if (!d->has_power) { pci_device_reset(d); } diff --git a/include/hw/pci/pci_device.h b/include/hw/pci/pci_device.h index d3dd0f64b2..7fa501569a 100644 --- a/include/hw/pci/pci_device.h +++ b/include/hw/pci/pci_device.h @@ -87,6 +87,7 @@ struct PCIDevice { char name[64]; PCIIORegion io_regions[PCI_NUM_REGIONS]; AddressSpace bus_master_as; + bool is_master; MemoryRegion bus_master_container_region; MemoryRegion bus_master_enable_region; =20 --=20 2.44.0