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[Qemu-devel] [PATCH 1/6] remove smaller slots if registering a bigger on
From: |
Glauber Costa |
Subject: |
[Qemu-devel] [PATCH 1/6] remove smaller slots if registering a bigger one |
Date: |
Thu, 18 Dec 2008 12:01:37 -0500 |
It's like a shark eating a bunch of small fishes:
in some situations (vga linear frame buffer mapping,
for example), we need to register a new slot in place
of older, smaller ones. This patch handles this case
Signed-off-by: Glauber Costa <address@hidden>
---
kvm-all.c | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/kvm-all.c b/kvm-all.c
index 11034df..3c12c37 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -582,6 +582,16 @@ void kvm_set_phys_mem(target_phys_addr_t start_addr,
kvm_set_phys_mem(mem_start, mem_size, mem_offset);
return;
+ } else if (start_addr <= mem->start_addr &&
+ (start_addr + size) >= (mem->start_addr +
+ mem->memory_size)) {
+ KVMSlot slot;
+ /* unregister whole slot */
+ memcpy(&slot, mem, sizeof(slot));
+ mem->memory_size = 0;
+ kvm_set_user_memory_region(s, mem);
+
+ kvm_set_phys_mem(start_addr, size, phys_offset);
} else {
printf("Registering overlapping slot\n");
abort();
--
1.5.6.5
- [Qemu-devel] [PATCH 0/6] bypass tcg memory functions -v2, Glauber Costa, 2008/12/18
- [Qemu-devel] [PATCH 1/6] remove smaller slots if registering a bigger one,
Glauber Costa <=
- [Qemu-devel] [PATCH 2/6] re-register whole area upon lfb unmap., Glauber Costa, 2008/12/18
- [Qemu-devel] [PATCH 3/6] isolate io handling routine, Glauber Costa, 2008/12/18
- [Qemu-devel] [PATCH 4/6] replace cpu_physical_memory_rw, Glauber Costa, 2008/12/18
- [Qemu-devel] [PATCH 5/6] hook cpu_register_physical_mem, Glauber Costa, 2008/12/18
- [Qemu-devel] [PATCH 6/6] cache slot lookup, Glauber Costa, 2008/12/18
- Re: [Qemu-devel] [PATCH 5/6] hook cpu_register_physical_mem, Blue Swirl, 2008/12/19
- Re: [Qemu-devel] [PATCH 5/6] hook cpu_register_physical_mem, Laurent Desnogues, 2008/12/19
- Re: [Qemu-devel] [PATCH 5/6] hook cpu_register_physical_mem, Anthony Liguori, 2008/12/19
- Re: [Qemu-devel] [PATCH 5/6] hook cpu_register_physical_mem, Blue Swirl, 2008/12/20
- Re: [Qemu-devel] [PATCH 5/6] hook cpu_register_physical_mem, Glauber Costa, 2008/12/22