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-rw-r--r--hw/core/machine.c4
-rw-r--r--hw/pci/pci.c2
-rw-r--r--hw/pci/pcie.c8
3 files changed, 12 insertions, 2 deletions
diff --git a/hw/core/machine.c b/hw/core/machine.c
index adaba17eba..8ccc74067a 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -34,7 +34,9 @@
#include "hw/virtio/virtio-iommu.h"
#include "audio/audio.h"
-GlobalProperty hw_compat_9_1[] = {};
+GlobalProperty hw_compat_9_1[] = {
+ { TYPE_PCI_DEVICE, "x-pcie-ext-tag", "false" },
+};
const size_t hw_compat_9_1_len = G_N_ELEMENTS(hw_compat_9_1);
GlobalProperty hw_compat_9_0[] = {
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 0b6bdaa0d7..1416ae202c 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -100,6 +100,8 @@ static Property pci_props[] = {
QEMU_PCIE_ARI_NEXTFN_1_BITNR, false),
DEFINE_PROP_SIZE32("x-max-bounce-buffer-size", PCIDevice,
max_bounce_buffer_size, DEFAULT_MAX_BOUNCE_BUFFER_SIZE),
+ DEFINE_PROP_BIT("x-pcie-ext-tag", PCIDevice, cap_present,
+ QEMU_PCIE_EXT_TAG_BITNR, true),
{ .name = "busnr", .info = &prop_pci_busnr },
DEFINE_PROP_END_OF_LIST()
};
diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c
index 2738dbb28d..0b455c8654 100644
--- a/hw/pci/pcie.c
+++ b/hw/pci/pcie.c
@@ -86,7 +86,13 @@ pcie_cap_v1_fill(PCIDevice *dev, uint8_t port, uint8_t type, uint8_t version)
* Specification, Revision 1.1., or subsequent PCI Express Base
* Specification revisions.
*/
- pci_set_long(exp_cap + PCI_EXP_DEVCAP, PCI_EXP_DEVCAP_RBER);
+ uint32_t devcap = PCI_EXP_DEVCAP_RBER;
+
+ if (dev->cap_present & QEMU_PCIE_EXT_TAG) {
+ devcap = PCI_EXP_DEVCAP_RBER | PCI_EXP_DEVCAP_EXT_TAG;
+ }
+
+ pci_set_long(exp_cap + PCI_EXP_DEVCAP, devcap);
pci_set_long(exp_cap + PCI_EXP_LNKCAP,
(port << PCI_EXP_LNKCAP_PN_SHIFT) |