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[Qemu-devel] [PATCH v4 1/9] kvm: remove hard dependency on pci
From: |
Cornelia Huck |
Subject: |
[Qemu-devel] [PATCH v4 1/9] kvm: remove hard dependency on pci |
Date: |
Fri, 4 Aug 2017 13:29:38 +0200 |
The msi routing code in kvm calls some pci functions: provide
some stubs to enable builds without pci.
Also, to make this more obvious, guard them via a pci_available boolean
(which also can be reused in other places).
Fixes: e1d4fb2de ("kvm-irqchip: x86: add msi route notify fn")
Fixes: 767a554a0 ("kvm-all: Pass requester ID to MSI routing functions")
Signed-off-by: Cornelia Huck <address@hidden>
---
accel/kvm/kvm-all.c | 6 +++---
hw/pci/pci-stub.c | 13 +++++++++++++
hw/pci/pci.c | 2 ++
include/hw/pci/pci.h | 2 ++
4 files changed, 20 insertions(+), 3 deletions(-)
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index 46ce479dc3..f85553a851 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -1248,7 +1248,7 @@ int kvm_irqchip_add_msi_route(KVMState *s, int vector,
PCIDevice *dev)
int virq;
MSIMessage msg = {0, 0};
- if (dev) {
+ if (pci_available && dev) {
msg = pci_get_msi_message(dev, vector);
}
@@ -1271,7 +1271,7 @@ int kvm_irqchip_add_msi_route(KVMState *s, int vector,
PCIDevice *dev)
kroute.u.msi.address_lo = (uint32_t)msg.address;
kroute.u.msi.address_hi = msg.address >> 32;
kroute.u.msi.data = le32_to_cpu(msg.data);
- if (kvm_msi_devid_required()) {
+ if (pci_available && kvm_msi_devid_required()) {
kroute.flags = KVM_MSI_VALID_DEVID;
kroute.u.msi.devid = pci_requester_id(dev);
}
@@ -1309,7 +1309,7 @@ int kvm_irqchip_update_msi_route(KVMState *s, int virq,
MSIMessage msg,
kroute.u.msi.address_lo = (uint32_t)msg.address;
kroute.u.msi.address_hi = msg.address >> 32;
kroute.u.msi.data = le32_to_cpu(msg.data);
- if (kvm_msi_devid_required()) {
+ if (pci_available && kvm_msi_devid_required()) {
kroute.flags = KVM_MSI_VALID_DEVID;
kroute.u.msi.devid = pci_requester_id(dev);
}
diff --git a/hw/pci/pci-stub.c b/hw/pci/pci-stub.c
index ecad664946..877c5d165e 100644
--- a/hw/pci/pci-stub.c
+++ b/hw/pci/pci-stub.c
@@ -23,10 +23,12 @@
#include "monitor/monitor.h"
#include "qapi/qmp/qerror.h"
#include "hw/pci/pci.h"
+#include "hw/pci/msi.h"
#include "qmp-commands.h"
#include "hw/pci/msi.h"
bool msi_nonbroken;
+bool pci_available;
PciInfoList *qmp_query_pci(Error **errp)
{
@@ -38,3 +40,14 @@ void hmp_pcie_aer_inject_error(Monitor *mon, const QDict
*qdict)
{
monitor_printf(mon, "PCI devices not supported\n");
}
+
+/* kvm-all wants this */
+MSIMessage pci_get_msi_message(PCIDevice *dev, int vector)
+{
+ assert(false);
+}
+
+uint16_t pci_requester_id(PCIDevice *dev)
+{
+ assert(false);
+}
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 258fbe51e2..26f346db2c 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -49,6 +49,8 @@
# define PCI_DPRINTF(format, ...) do { } while (0)
#endif
+bool pci_available = true;
+
static void pcibus_dev_print(Monitor *mon, DeviceState *dev, int indent);
static char *pcibus_get_dev_path(DeviceState *dev);
static char *pcibus_get_fw_dev_path(DeviceState *dev);
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index e598b095eb..8bb6449dd7 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -10,6 +10,8 @@
#include "hw/pci/pcie.h"
+extern bool pci_available;
+
/* PCI bus */
#define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))
--
2.13.3
- Re: [Qemu-devel] [PATCH v4 8/9] s390x/kvm: msi route fixup for non-pci, (continued)
[Qemu-devel] [PATCH v4 9/9] s390x: refine pci dependencies, Cornelia Huck, 2017/08/04
[Qemu-devel] [PATCH v4 3/9] s390x: chsc nt2 events are pci-only, Cornelia Huck, 2017/08/04
[Qemu-devel] [PATCH v4 1/9] kvm: remove hard dependency on pci,
Cornelia Huck <=
[Qemu-devel] [PATCH v4 6/9] s390x/sclp: properly guard pci-specific functions, Cornelia Huck, 2017/08/04
[Qemu-devel] [PATCH v4 7/9] s390x/pci: fence off instructions for non-pci, Cornelia Huck, 2017/08/04
[Qemu-devel] [PATCH v4 2/9] s390x/pci: add stubs, Cornelia Huck, 2017/08/04
Re: [Qemu-devel] [PATCH v4 0/9] s390x: zPCI detangling, Cornelia Huck, 2017/08/04