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[Qemu-devel] [PATCHv2 RFC] qemu/msix: remove msix_supported safety flag
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PATCHv2 RFC] qemu/msix: remove msix_supported safety flag |
Date: |
Sun, 21 Jun 2009 20:04:22 +0300 |
User-agent: |
Mutt/1.5.19 (2009-01-05) |
Don't add an option for platforms to disable MSI-X in all devices.
Paul Brook will find and fix all platforms that have broken MSI-X
emulation.
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
This patch on top of my msix series v6 is a bit tongue in cheek: it
shows what can be done and Paul seems to think it's a good idea. So even
though I don't necessarily agree, I'll let others decide on it.
Changes since v1:
rebased on top of MSIXv6.
hw/apic.c | 1 -
hw/msix.c | 7 -------
hw/msix.h | 2 --
3 files changed, 0 insertions(+), 10 deletions(-)
diff --git a/hw/apic.c b/hw/apic.c
index 3bcab46..2ac87d1 100644
--- a/hw/apic.c
+++ b/hw/apic.c
@@ -965,7 +965,6 @@ int apic_init(CPUState *env)
s->cpu_env = env;
apic_reset(s);
- msix_supported = 1;
/* XXX: mapping more APICs at the same memory location */
if (apic_io_memory == 0) {
diff --git a/hw/msix.c b/hw/msix.c
index 773581f..6eb51c3 100644
--- a/hw/msix.c
+++ b/hw/msix.c
@@ -59,9 +59,6 @@
#define DEBUG(fmt, ...) do { } while(0)
#endif
-/* 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.
@@ -227,10 +224,6 @@ 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)
- return -ENOTSUP;
-
if (nentries > MSIX_MAX_ENTRIES)
return -EINVAL;
diff --git a/hw/msix.h b/hw/msix.h
index 3427778..27f2dad 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
--
1.6.2.2
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