diff options
Diffstat (limited to 'microkernel/mach/gnumach')
| -rw-r--r-- | microkernel/mach/gnumach/memory_management.mdwn | 14 | ||||
| -rw-r--r-- | microkernel/mach/gnumach/ports.mdwn | 9 | ||||
| -rw-r--r-- | microkernel/mach/gnumach/projects/clean_up_the_code.mdwn | 11 |
3 files changed, 31 insertions, 3 deletions
diff --git a/microkernel/mach/gnumach/memory_management.mdwn b/microkernel/mach/gnumach/memory_management.mdwn index c630af05..3e158b7c 100644 --- a/microkernel/mach/gnumach/memory_management.mdwn +++ b/microkernel/mach/gnumach/memory_management.mdwn @@ -48,6 +48,7 @@ License|/fdl]]."]]"""]] <braunr> and mmu management <braunr> (but maybe that's what you meant by physical memory) + ## IRC, freenode, #hurd, 2011-02-16 <braunr> antrik: youpi added it for xen, yes @@ -119,3 +120,16 @@ License|/fdl]]."]]"""]] <braunr> there is issue with watch ./slabinfo which turned in a infinite loop, but it didn't affect the stability of the system <braunr> actually with a 64-bits kernel, we could use a 4/x split + + +# IRC, freenode, #hurd, 2012-08-10 + + <braunr> all modern systems embed the kernel in every address space + <braunr> which allows reduced overhead when making a system call + <braunr> sometimes there is no context switch at all + <braunr> on i386, there are security checks to upgrade the privilege level + (switch to ring 0), and when used, kernel page tables are global, so + they're not flushed + <braunr> using sysenter/sysexit makes it even faster + +[[open_issues/system_call_mechanism]]. diff --git a/microkernel/mach/gnumach/ports.mdwn b/microkernel/mach/gnumach/ports.mdwn index f114460c..e7fdb446 100644 --- a/microkernel/mach/gnumach/ports.mdwn +++ b/microkernel/mach/gnumach/ports.mdwn @@ -1,5 +1,5 @@ -[[!meta copyright="Copyright © 2007, 2008, 2009, 2011 Free Software Foundation, -Inc."]] +[[!meta copyright="Copyright © 2007, 2008, 2009, 2011, 2012 Free Software +Foundation, Inc."]] [[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable id="license" text="Permission is granted to copy, distribute and/or modify this @@ -13,6 +13,11 @@ License|/fdl]]."]]"""]] * [[Xen]] + * [[open_issues/64-bit_port]]. There is some preliminary work for a + x86\_64 port. + + * [[open_issues/ARM_port]]. Is not in a usable state. + * [PowerPC](http://www.pjbruin.dds.nl/hurd/). Is not in a usable state. * Alpha: [project I](http://savannah.nongnu.org/projects/hurd-alpha), and diff --git a/microkernel/mach/gnumach/projects/clean_up_the_code.mdwn b/microkernel/mach/gnumach/projects/clean_up_the_code.mdwn index 2a9b4b60..89a27b01 100644 --- a/microkernel/mach/gnumach/projects/clean_up_the_code.mdwn +++ b/microkernel/mach/gnumach/projects/clean_up_the_code.mdwn @@ -1,4 +1,4 @@ -[[!meta copyright="Copyright © 2005, 2006, 2007, 2008, 2010 Free Software +[[!meta copyright="Copyright © 2005, 2006, 2007, 2008, 2010, 2012 Free Software Foundation, Inc."]] [[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable @@ -121,3 +121,12 @@ further files (also exported ones) that serve no real value, but are being # Rewrite ugly code + + +# IRC, freenode, #hurd, 2012-09-06 + + <mcsim> hello. Why size parameter of rpc device_read has type + "mach_msg_type_number_t *"? Why not just "vm_size_t *"? + <mcsim> this parameter has name data_count + <braunr> that's one of the reasons mach is confusing + <braunr> i can't really tell you why, it's messy :/ |