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[Qemu-devel] [PATCH 05/10] KVM don't care about TLB handling
From: |
Juan Quintela |
Subject: |
[Qemu-devel] [PATCH 05/10] KVM don't care about TLB handling |
Date: |
Wed, 24 Nov 2010 00:03:02 +0100 |
From: Juan Quintela <address@hidden>
TLB handling is only used in TCG mode. It is very costly for guests with lots
of memory ad lots of CPU's.
Signed-off-by: Juan Quintela <address@hidden>
Signed-off-by: Juan Quintela <address@hidden>
---
exec.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/exec.c b/exec.c
index db9ff55..f5b2386 100644
--- a/exec.c
+++ b/exec.c
@@ -2028,6 +2028,9 @@ void cpu_physical_memory_reset_dirty(ram_addr_t start,
ram_addr_t end,
return;
cpu_physical_memory_mask_dirty_range(start, length, dirty_flags);
+ if (kvm_enabled())
+ return;
+
/* we modify the TLB cache so that the dirty bit will be set again
when accessing the range */
start1 = (unsigned long)qemu_get_ram_ptr(start);
--
1.7.3.2
- [Qemu-devel] Re: [PATCH 02/10] Add buffered_file_internal constant, (continued)
- [Qemu-devel] Re: [PATCH 02/10] Add buffered_file_internal constant, Anthony Liguori, 2010/11/30
- [Qemu-devel] Re: [PATCH 02/10] Add buffered_file_internal constant, Juan Quintela, 2010/11/30
- [Qemu-devel] Re: [PATCH 02/10] Add buffered_file_internal constant, Anthony Liguori, 2010/11/30
- [Qemu-devel] Re: [PATCH 02/10] Add buffered_file_internal constant, Juan Quintela, 2010/11/30
- [Qemu-devel] Re: [PATCH 02/10] Add buffered_file_internal constant, Anthony Liguori, 2010/11/30
- [Qemu-devel] Re: [PATCH 02/10] Add buffered_file_internal constant, Juan Quintela, 2010/11/30
- [Qemu-devel] Re: [PATCH 02/10] Add buffered_file_internal constant, Michael S. Tsirkin, 2010/11/30
- [Qemu-devel] Re: [PATCH 02/10] Add buffered_file_internal constant, Anthony Liguori, 2010/11/30
[Qemu-devel] [PATCH 01/10] Add spent time to migration, Juan Quintela, 2010/11/23
[Qemu-devel] [PATCH 04/10] No need to iterate if we already are over the limit, Juan Quintela, 2010/11/23
[Qemu-devel] [PATCH 05/10] KVM don't care about TLB handling,
Juan Quintela <=
[Qemu-devel] [PATCH 03/10] Add printf debug to savevm, Juan Quintela, 2010/11/23
[Qemu-devel] [PATCH 06/10] Only calculate expected_time for stage 2, Juan Quintela, 2010/11/23
[Qemu-devel] [PATCH 07/10] ram_save_remaining() returns an uint64_t, Juan Quintela, 2010/11/23
- Message not available
- Message not available
[Qemu-devel] [PATCH 08/10] Count nanoseconds with uint64_t not doubles, Juan Quintela, 2010/11/23
[Qemu-devel] [PATCH 09/10] Exit loop if we have been there too long, Juan Quintela, 2010/11/23