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| author | Jiang, Yunhong <yunhong.jiang@intel.com> | 2012-04-01 10:01:33 +0800 |
|---|---|---|
| committer | Jiang, Yunhong <yunhong.jiang@intel.com> | 2012-04-07 22:47:58 +0800 |
| commit | fba19d9f0bf94a11e87dd09e230b621025436b76 (patch) | |
| tree | 12996af5393acadd815968018969e365939c1b9d /target-i386/hax-windows.h | |
| parent | 8a539eaab40dc7a8047dbf97c081467029e6c518 (diff) | |
| download | external_qemu-fba19d9f0bf94a11e87dd09e230b621025436b76.zip external_qemu-fba19d9f0bf94a11e87dd09e230b621025436b76.tar.gz external_qemu-fba19d9f0bf94a11e87dd09e230b621025436b76.tar.bz2 | |
Add fast mmio support
In HAXM 1.0, HAXM driver utilizes QEMU to decode and emulate MMIO accesses.
This simplified the HAXM driver implementation. However, decoding in QEMU is
slow because QEMU needs to sync with the HAXM driver regarding the vCPU state,
guest page tables, etc.
Newer HAXM driver will decode some MMIO instructions, and QEMU
will get the decoded instruction information like the physical address,
access direction etc, and then invoke the MMIO handler directly.
This boosts MMIO handling performance significantly, thus performance of 2D/3D
games because they performance very frequent MMIO access for GLES commands to
the host translator.
Change-Id: Ida308b2e6da3697ee37a1b28a9645916e104d9ff
Signed-off-by: Xin, Xiaohui <xiaohui.xin@intel.com>
Signed-off-by: Jiang, Yunhong <yunhong.jiang@intel.com>
Signed-off-by: Nakajima, Jun <jun.nakajima@intel.com>
Diffstat (limited to 'target-i386/hax-windows.h')
0 files changed, 0 insertions, 0 deletions