summaryrefslogtreecommitdiff
path: root/2005/flow-accounting-ols2005/OLS2005/dike/dike-abstract.tex
diff options
context:
space:
mode:
Diffstat (limited to '2005/flow-accounting-ols2005/OLS2005/dike/dike-abstract.tex')
-rw-r--r--2005/flow-accounting-ols2005/OLS2005/dike/dike-abstract.tex28
1 files changed, 28 insertions, 0 deletions
diff --git a/2005/flow-accounting-ols2005/OLS2005/dike/dike-abstract.tex b/2005/flow-accounting-ols2005/OLS2005/dike/dike-abstract.tex
new file mode 100644
index 0000000..35e66fe
--- /dev/null
+++ b/2005/flow-accounting-ols2005/OLS2005/dike/dike-abstract.tex
@@ -0,0 +1,28 @@
+
+% Registration UML and the Intel VT extensions
+%
+% [2]Register/Submit Proposal Jeff Dike (jdike@addtoit.com)
+
+Intel has added virtualization extensions (VT)
+to the x86 architecture. It adds a new set of
+rings, guest rings 0 through 3, to the
+traditional rings, which are now called the
+host rings.
+
+User-mode Linux (UML) is in the process of
+being enhanced to make use of these extensions
+for greater performance. It will run in guest
+ring 0, gaining the ability to directly
+receive software interrupts. This will allow
+it to handle process system calls without
+needing assistance from the host kernel, which
+will let UML handle system calls at hardware
+speed.
+
+In spite of running in a ring 0, UML will
+appear to remain in userspace, making system
+calls to the host kernel and receiving signals
+from it. So, it will retain its current
+manageability, while getting a performance
+boost from its use of the hardware.
+
personal git repositories of Harald Welte. Your mileage may vary