smc91c111: Fix receive starvation

[qemu.git] / qemu-doc.texi

diff --git a/qemu-doc.texi b/qemu-doc.texi
index 5b360048731378aa25a4c841b9b7d919dcff2a59..185dd47a033d5ff41265121355a0252831e6c4e3 100644 (file)
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -214,11 +214,7 @@ PCI UHCI USB controller and a virtual USB hub.
 
 SMP is supported with up to 255 CPUs.
 
-Note that adlib, gus and cs4231a are only available when QEMU was
-configured with --audio-card-list option containing the name(s) of
-required card(s).
-
-QEMU uses the PC BIOS from the Bochs project and the Plex86/Bochs LGPL
+QEMU uses the PC BIOS from the Seabios project and the Plex86/Bochs LGPL
 VGA BIOS.
 
 QEMU uses YM3812 emulation by Tatsuyuki Satoh.
@@ -1081,11 +1077,16 @@ tools only use MD5 to print fingerprints).
 Currently authentication must be done using ssh-agent.  Other
 authentication methods may be supported in future.
 
-Note: The ssh driver does not obey disk flush requests (ie. to commit
-data to the backing disk when the guest requests it).  This is because
-the underlying protocol (SFTP) does not support this.  Thus there is a
-risk of guest disk corruption if the remote server or network goes
-down during writes.
+Note: Many ssh servers do not support an @code{fsync}-style operation.
+The ssh driver cannot guarantee that disk flush requests are
+obeyed, and this causes a risk of disk corruption if the remote
+server or network goes down during writes.  The driver will
+print a warning when @code{fsync} is not supported:
+
+warning: ssh server @code{ssh.example.com:22} does not support fsync
+
+With sufficiently new versions of libssh2 and OpenSSH, @code{fsync} is
+supported.
 
 @node pcsys_network
 @section Network emulation
@@ -1957,15 +1958,11 @@ SPARCbook
 The emulation is somewhat complete. SMP up to 16 CPUs is supported,
 but Linux limits the number of usable CPUs to 4.
 
-It's also possible to simulate a SPARCstation 2 (sun4c architecture),
-SPARCserver 1000, or SPARCcenter 2000 (sun4d architecture), but these
-emulators are not usable yet.
-
-QEMU emulates the following sun4m/sun4c/sun4d peripherals:
+QEMU emulates the following sun4m peripherals:
 
 @itemize @minus
 @item
-IOMMU or IO-UNITs
+IOMMU
 @item
 TCX Frame buffer
 @item
@@ -2018,7 +2015,7 @@ qemu-system-sparc -prom-env 'auto-boot?=false' \
  -prom-env 'boot-device=sd(0,2,0):d' -prom-env 'boot-args=linux single'
 @end example
 
-@item -M [SS-4|SS-5|SS-10|SS-20|SS-600MP|LX|Voyager|SPARCClassic] [|SPARCbook|SS-2|SS-1000|SS-2000]
+@item -M [SS-4|SS-5|SS-10|SS-20|SS-600MP|LX|Voyager|SPARCClassic] [|SPARCbook]
 
 Set the emulated machine type. Default is SS-5.
 
@@ -2678,9 +2675,6 @@ Set the x86 elf interpreter prefix (default=/usr/local/qemu-i386)
 Set the x86 stack size in bytes (default=524288)
 @item -cpu model
 Select CPU model (-cpu help for list and additional feature selection)
-@item -ignore-environment
-Start with an empty environment. Without this option,
-the initial environment is a copy of the caller's environment.
 @item -E @var{var}=@var{value}
 Set environment @var{var} to @var{value}.
 @item -U @var{var}