This patch introduces in qemu the MMIO batching.
It defines qemu_kvm_register_delayed_mmio() and
qemu_kvm_unregister_delayed_mmio() to register and unregister delayed MMIO
zone.
It calls qemu_kvm_unregister_delayed_mmio() on pci_update_mappings().
Signed-off-by: Laurent Vivier <[EMAIL PROTECTED]>
---
qemu/hw/pci.c | 4 ++++
qemu/qemu-kvm.c | 10 ++++++++++
qemu/qemu-kvm.h | 2 ++
3 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/qemu/hw/pci.c b/qemu/hw/pci.c
index a23a466..70809fb 100644
--- a/qemu/hw/pci.c
+++ b/qemu/hw/pci.c
@@ -26,6 +26,7 @@
#include "console.h"
#include "net.h"
#include "pc.h"
+#include "qemu-kvm.h"
//#define DEBUG_PCI
@@ -323,6 +324,9 @@ static void pci_update_mappings(PCIDevice *d)
cpu_register_physical_memory(pci_to_cpu_addr(r->addr),
r->size,
IO_MEM_UNASSIGNED);
+ if (kvm_enabled())
+ qemu_kvm_unregister_delayed_mmio(r->addr,
+ r->size);
}
}
r->addr = new_addr;
diff --git a/qemu/qemu-kvm.c b/qemu/qemu-kvm.c
index 02776bc..484a713 100644
--- a/qemu/qemu-kvm.c
+++ b/qemu/qemu-kvm.c
@@ -928,3 +928,13 @@ void kvm_mutex_lock(void)
pthread_mutex_lock(&qemu_mutex);
cpu_single_env = NULL;
}
+
+int qemu_kvm_register_delayed_mmio(target_phys_addr_t addr, unsigned int size)
+{
+ return kvm_register_delayed_mmio(kvm_context, addr, size);
+}
+
+int qemu_kvm_unregister_delayed_mmio(target_phys_addr_t addr, unsigned int
size)
+{
+ return kvm_unregister_delayed_mmio(kvm_context, addr, size);
+}
diff --git a/qemu/qemu-kvm.h b/qemu/qemu-kvm.h
index 7412e20..a69142c 100644
--- a/qemu/qemu-kvm.h
+++ b/qemu/qemu-kvm.h
@@ -76,6 +76,8 @@ int handle_tpr_access(void *opaque, int vcpu,
void kvm_tpr_vcpu_start(CPUState *env);
int qemu_kvm_get_dirty_pages(unsigned long phys_addr, void *buf);
+int qemu_kvm_register_delayed_mmio(target_phys_addr_t addr, unsigned int size);
+int qemu_kvm_unregister_delayed_mmio(target_phys_addr_t addr, unsigned int
size);
void qemu_kvm_system_reset_request(void);
--
1.5.2.4
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
