Displaying 2 results from an estimated 2 matches for "mmio_gpfn".
2012 Jun 27
1
[PATCH] x86/hvm: increase struct hvm_vcpu_io's mmio_large_read
...that the
two mmio_large_*_bytes fields end up adjacent to each other.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
--- a/xen/include/asm-x86/hvm/vcpu.h
+++ b/xen/include/asm-x86/hvm/vcpu.h
@@ -59,13 +59,13 @@ struct hvm_vcpu_io {
unsigned long mmio_gva;
unsigned long mmio_gpfn;
- /* We may read up to m128 as a number of device-model transactions. */
+ /* We may read up to m256 as a number of device-model transactions. */
paddr_t mmio_large_read_pa;
- uint8_t mmio_large_read[16];
+ uint8_t mmio_large_read[32];
unsigned int mmio_large_read_bytes;
-...
2012 Oct 20
15
xen-unstable, winxp32 very poor performance on AMD FX-8150, I bisected and changeset is 24770:7f79475d3de7
I ran a bisect to find out when Windows XP 32 bit becomes unusably slow.
And I found the changeset that caused it.
==========
The problem:
==========
Windows 8 64 bit and 32 bit run fast and fine in the newest xen versions.
Windows XP 32 bit runs unusably slow in anything new that I built from
xen-unstable, but runs fast in 4.1.2 and 4.1.3 stable. While it is
running slow, "xm top" or