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[Qemu-devel] [PATCH v3 22/29] memory: do not touch code dirty bitmap unl
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH v3 22/29] memory: do not touch code dirty bitmap unless TCG is enabled |
Date: |
Tue, 26 May 2015 18:54:58 +0200 |
cpu_physical_memory_set_dirty_lebitmap unconditionally syncs the
DIRTY_MEMORY_CODE bitmap. This however is unused unless TCG is
enabled.
Reviewed-by: Fam Zheng <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
include/exec/ram_addr.h | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h
index 9778398..c2037f7 100644
--- a/include/exec/ram_addr.h
+++ b/include/exec/ram_addr.h
@@ -162,11 +162,14 @@ static inline void
cpu_physical_memory_set_dirty_lebitmap(unsigned long *bitmap,
ram_list.dirty_memory[DIRTY_MEMORY_MIGRATION][page + k] |=
temp;
ram_list.dirty_memory[DIRTY_MEMORY_VGA][page + k] |= temp;
- ram_list.dirty_memory[DIRTY_MEMORY_CODE][page + k] |= temp;
+ if (tcg_enabled()) {
+ ram_list.dirty_memory[DIRTY_MEMORY_CODE][page + k] |= temp;
+ }
}
}
xen_modified_memory(start, pages << TARGET_PAGE_BITS);
} else {
+ uint8_t clients = tcg_enabled() ? DIRTY_CLIENTS_ALL :
DIRTY_CLIENTS_NOCODE;
/*
* bitmap-traveling is faster than memory-traveling (for addr...)
* especially when most of the memory is not dirty.
@@ -181,8 +184,7 @@ static inline void
cpu_physical_memory_set_dirty_lebitmap(unsigned long *bitmap,
addr = page_number * TARGET_PAGE_SIZE;
ram_addr = start + addr;
cpu_physical_memory_set_dirty_range(ram_addr,
- TARGET_PAGE_SIZE * hpratio,
- DIRTY_CLIENTS_ALL);
+ TARGET_PAGE_SIZE * hpratio, clients);
} while (c != 0);
}
}
--
1.8.3.1
- [Qemu-devel] [PATCH v3 00/29] Dirty bitmap atomic access and optimizations, Paolo Bonzini, 2015/05/26
- [Qemu-devel] [PATCH v3 02/29] g364fb: remove pointless call to memory_region_set_coalescing, Paolo Bonzini, 2015/05/26
- [Qemu-devel] [PATCH v3 01/29] memory: the only dirty memory flag for users is DIRTY_MEMORY_VGA, Paolo Bonzini, 2015/05/26
- [Qemu-devel] [PATCH v3 03/29] display: enable DIRTY_MEMORY_VGA tracking explicitly, Paolo Bonzini, 2015/05/26
- [Qemu-devel] [PATCH v3 18/29] translate-all: make less of tb_invalidate_phys_page_range depend on is_cpu_write_access, Paolo Bonzini, 2015/05/26
- [Qemu-devel] [PATCH v3 20/29] exec: invert return value of cpu_physical_memory_get_clean, rename, Paolo Bonzini, 2015/05/26
- [Qemu-devel] [PATCH v3 10/29] kvm: accept non-mapped memory in kvm_dirty_pages_log_change, Paolo Bonzini, 2015/05/26
- [Qemu-devel] [PATCH v3 13/29] ram_addr: tweaks to xen_modified_memory, Paolo Bonzini, 2015/05/26
- [Qemu-devel] [PATCH v3 09/29] memory: track DIRTY_MEMORY_CODE in mr->dirty_log_mask, Paolo Bonzini, 2015/05/26
- [Qemu-devel] [PATCH v3 22/29] memory: do not touch code dirty bitmap unless TCG is enabled,
Paolo Bonzini <=
- [Qemu-devel] [PATCH v3 05/29] memory: differentiate memory_region_is_logging and memory_region_get_dirty_log_mask, Paolo Bonzini, 2015/05/26
- [Qemu-devel] [PATCH v3 04/29] display: add memory_region_sync_dirty_bitmap calls, Paolo Bonzini, 2015/05/26
- [Qemu-devel] [PATCH v3 15/29] exec: move functions to translate-all.h, Paolo Bonzini, 2015/05/26
- [Qemu-devel] [PATCH v3 23/29] bitmap: add atomic set functions, Paolo Bonzini, 2015/05/26
- [Qemu-devel] [PATCH v3 19/29] exec: pass client mask to cpu_physical_memory_set_dirty_range, Paolo Bonzini, 2015/05/26
- [Qemu-devel] [PATCH v3 07/29] framebuffer: check memory_region_is_logging, Paolo Bonzini, 2015/05/26