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[Qemu-devel] [PATCH v7 01/18] msi: Generalize msix_supported to msi_supp
From: |
Jan Kiszka |
Subject: |
[Qemu-devel] [PATCH v7 01/18] msi: Generalize msix_supported to msi_supported |
Date: |
Mon, 16 Jan 2012 16:55:35 +0100 |
Rename msix_supported to msi_supported and control MSI and MSI-X
activation this way. That was likely to original intention for this
flag, but MSI support came after MSI-X.
Signed-off-by: Jan Kiszka <address@hidden>
---
hw/msi.c | 8 ++++++++
hw/msi.h | 2 ++
hw/msix.c | 9 ++++-----
hw/msix.h | 2 --
hw/pc.c | 4 ++--
5 files changed, 16 insertions(+), 9 deletions(-)
diff --git a/hw/msi.c b/hw/msi.c
index f214fcf..5d6ceb6 100644
--- a/hw/msi.c
+++ b/hw/msi.c
@@ -36,6 +36,9 @@
#define PCI_MSI_VECTORS_MAX 32
+/* Flag for interrupt controller to declare MSI/MSI-X support */
+bool msi_supported;
+
/* If we get rid of cap allocator, we won't need this. */
static inline uint8_t msi_cap_sizeof(uint16_t flags)
{
@@ -116,6 +119,11 @@ int msi_init(struct PCIDevice *dev, uint8_t offset,
uint16_t flags;
uint8_t cap_size;
int config_offset;
+
+ if (!msi_supported) {
+ return -ENOTSUP;
+ }
+
MSI_DEV_PRINTF(dev,
"init offset: 0x%"PRIx8" vector: %"PRId8
" 64bit %d mask %d\n",
diff --git a/hw/msi.h b/hw/msi.h
index 5766018..3040bb0 100644
--- a/hw/msi.h
+++ b/hw/msi.h
@@ -24,6 +24,8 @@
#include "qemu-common.h"
#include "pci.h"
+extern bool msi_supported;
+
bool msi_enabled(const PCIDevice *dev);
int msi_init(struct PCIDevice *dev, uint8_t offset,
unsigned int nr_vectors, bool msi64bit, bool msi_per_vector_mask);
diff --git a/hw/msix.c b/hw/msix.c
index 149eed2..107d4e5 100644
--- a/hw/msix.c
+++ b/hw/msix.c
@@ -12,6 +12,7 @@
*/
#include "hw.h"
+#include "msi.h"
#include "msix.h"
#include "pci.h"
#include "range.h"
@@ -32,9 +33,6 @@
#define MSIX_MAX_ENTRIES 32
-/* Flag for interrupt controller to declare MSI-X support */
-int msix_supported;
-
/* Add MSI-X capability to the config space for the device. */
/* Given a bar and its size, add MSI-X table on top of it
* and fill MSI-X capability in the config space.
@@ -235,10 +233,11 @@ int msix_init(struct PCIDevice *dev, unsigned short
nentries,
unsigned bar_nr, unsigned bar_size)
{
int ret;
+
/* Nothing to do if MSI is not supported by interrupt controller */
- if (!msix_supported)
+ if (!msi_supported) {
return -ENOTSUP;
-
+ }
if (nentries > MSIX_MAX_ENTRIES)
return -EINVAL;
diff --git a/hw/msix.h b/hw/msix.h
index 7e04336..5aba22b 100644
--- a/hw/msix.h
+++ b/hw/msix.h
@@ -29,6 +29,4 @@ void msix_notify(PCIDevice *dev, unsigned vector);
void msix_reset(PCIDevice *dev);
-extern int msix_supported;
-
#endif
diff --git a/hw/pc.c b/hw/pc.c
index f51afa8..3f69e09 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -36,7 +36,7 @@
#include "elf.h"
#include "multiboot.h"
#include "mc146818rtc.h"
-#include "msix.h"
+#include "msi.h"
#include "sysbus.h"
#include "sysemu.h"
#include "blockdev.h"
@@ -896,7 +896,7 @@ static DeviceState *apic_init(void *env, uint8_t apic_id)
apic_mapped = 1;
}
- msix_supported = 1;
+ msi_supported = true;
return dev;
}
--
1.7.3.4
- [Qemu-devel] [PATCH v7 12/18] memory: Introduce memory_region_init_reservation, (continued)
- [Qemu-devel] [PATCH v7 12/18] memory: Introduce memory_region_init_reservation, Jan Kiszka, 2012/01/16
- [Qemu-devel] [PATCH v7 15/18] kvm: x86: Add user space part for in-kernel APIC, Jan Kiszka, 2012/01/16
- [Qemu-devel] [PATCH v7 18/18] kvm: Activate in-kernel irqchip support, Jan Kiszka, 2012/01/16
- [Qemu-devel] [PATCH v7 04/18] apic: Inject external NMI events via LINT1, Jan Kiszka, 2012/01/16
- [Qemu-devel] [PATCH v7 11/18] ioapic: Factor out base class for KVM reuse, Jan Kiszka, 2012/01/16
- [Qemu-devel] [PATCH v7 06/18] apic: Factor out base class for KVM reuse, Jan Kiszka, 2012/01/16
- [Qemu-devel] [PATCH v7 09/18] i8259: Factor out base class for KVM reuse, Jan Kiszka, 2012/01/16
- [Qemu-devel] [PATCH v7 17/18] kvm: x86: Add user space part for in-kernel IOAPIC, Jan Kiszka, 2012/01/16
- [Qemu-devel] [PATCH v7 08/18] i8259: Completely privatize PicState, Jan Kiszka, 2012/01/16
- [Qemu-devel] [PATCH v7 13/18] kvm: Introduce core services for in-kernel irqchip support, Jan Kiszka, 2012/01/16
- [Qemu-devel] [PATCH v7 01/18] msi: Generalize msix_supported to msi_supported,
Jan Kiszka <=
- [Qemu-devel] [PATCH v7 05/18] apic: Introduce apic_report_irq_delivered, Jan Kiszka, 2012/01/16
- [Qemu-devel] [PATCH v7 07/18] apic: Open-code timer save/restore, Jan Kiszka, 2012/01/16
- [Qemu-devel] [PATCH v7 16/18] kvm: x86: Add user space part for in-kernel i8259, Jan Kiszka, 2012/01/16
- [Qemu-devel] [PATCH v7 02/18] kvm: Move kvmclock into hw/kvm folder, Jan Kiszka, 2012/01/16
- Re: [Qemu-devel] [PATCH v7 00/18] uq/master: Introduce basic irqchip support, Marcelo Tosatti, 2012/01/18