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| -rw-r--r-- | microkernel/mach/gnumach/projects/mach_5.mdwn | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/microkernel/mach/gnumach/projects/mach_5.mdwn b/microkernel/mach/gnumach/projects/mach_5.mdwn index bf678556..73aaef99 100644 --- a/microkernel/mach/gnumach/projects/mach_5.mdwn +++ b/microkernel/mach/gnumach/projects/mach_5.mdwn @@ -105,6 +105,10 @@ sysenter improves our IPC performance by ~10%. ### Implementation +One trouble with sysenter/sysexit (or the amd equivalent) isn't +available on all processors. Linux solves this using the VDSO +mechanism. + I'd like to implement something similar: 1. There is a platform dependent way to map a special page. |