docs/system: convert Texinfo documentation to rST

Apart from targets.rst, which was written by hand, this is an automated
conversion obtained with the following command:

  makeinfo --force -o - --docbook \
    -D 'qemu_system_x86 QEMU_SYSTEM_X86_MACRO' \
    -D 'qemu_system     QEMU_SYSTEM_MACRO' \
    $texi | pandoc -f docbook -t rst+smart | perl -e '
      $/=undef;
      $_ = <>;
      s/^-  − /-  /gm;
      s/QEMU_SYSTEM_MACRO/|qemu_system|/g;
      s/QEMU_SYSTEM_X86_MACRO/|qemu_system_x86|/g;
      s/(?=::\n\n +\|qemu)/.. parsed-literal/g;
      s/:\n\n::$/::/gm;
      print' > $rst

In addition, the following changes were made manually:

- target-i386.rst and target-mips.rst: replace CPU model documentation with
  an include directive

- monitor.rst: replace the command section with a comment

- images.rst: add toctree

- target-arm.rst: Replace use of :math: (which Sphinx complains
  about) with :sup:, and hide it behind |I2C| and |I2C| substitutions.

Content that is not @included remains exclusive to qemu-doc.texi.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200228153619.9906-20-peter.maydell@linaro.org
Message-id: 20200226113034.6741-19-pbonzini@redhat.com
[PMM: Fixed target-arm.rst use of :math:; remove out of date
 note about images.rst from commit message; fixed expansion
 of |qemu_system_x86|; use parsed-literal in invocation.rst
 when we want to use |qemu_system_x86|; fix incorrect subsection
 level for "OS requirements" in target-i386.rst; fix incorrect
 syntax for making links to other sections of the manual]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 81 insertions, 0 deletions

diff --git a/docs/system/target-sparc.rst b/docs/system/target-sparc.rst
new file mode 100644
index 0000000..589c88d
--- /dev/null
+++ b/docs/system/target-sparc.rst
@@ -0,0 +1,81 @@
+.. _Sparc32-System-emulator:
+
+Sparc32 System emulator
+-----------------------
+
+Use the executable ``qemu-system-sparc`` to simulate the following Sun4m
+architecture machines:
+
+-  SPARCstation 4
+
+-  SPARCstation 5
+
+-  SPARCstation 10
+
+-  SPARCstation 20
+
+-  SPARCserver 600MP
+
+-  SPARCstation LX
+
+-  SPARCstation Voyager
+
+-  SPARCclassic
+
+-  SPARCbook
+
+The emulation is somewhat complete. SMP up to 16 CPUs is supported, but
+Linux limits the number of usable CPUs to 4.
+
+QEMU emulates the following sun4m peripherals:
+
+-  IOMMU
+
+-  TCX or cgthree Frame buffer
+
+-  Lance (Am7990) Ethernet
+
+-  Non Volatile RAM M48T02/M48T08
+
+-  Slave I/O: timers, interrupt controllers, Zilog serial ports,
+   keyboard and power/reset logic
+
+-  ESP SCSI controller with hard disk and CD-ROM support
+
+-  Floppy drive (not on SS-600MP)
+
+-  CS4231 sound device (only on SS-5, not working yet)
+
+The number of peripherals is fixed in the architecture. Maximum memory
+size depends on the machine type, for SS-5 it is 256MB and for others
+2047MB.
+
+Since version 0.8.2, QEMU uses OpenBIOS https://www.openbios.org/.
+OpenBIOS is a free (GPL v2) portable firmware implementation. The goal
+is to implement a 100% IEEE 1275-1994 (referred to as Open Firmware)
+compliant firmware.
+
+A sample Linux 2.6 series kernel and ram disk image are available on the
+QEMU web site. There are still issues with NetBSD and OpenBSD, but most
+kernel versions work. Please note that currently older Solaris kernels
+don't work probably due to interface issues between OpenBIOS and
+Solaris.
+
+The following options are specific to the Sparc32 emulation:
+
+``-g WxHx[xDEPTH]``
+   Set the initial graphics mode. For TCX, the default is 1024x768x8
+   with the option of 1024x768x24. For cgthree, the default is
+   1024x768x8 with the option of 1152x900x8 for people who wish to use
+   OBP.
+
+``-prom-env string``
+   Set OpenBIOS variables in NVRAM, for example:
+
+   ::
+
+      qemu-system-sparc -prom-env 'auto-boot?=false' \
+       -prom-env 'boot-device=sd(0,2,0):d' -prom-env 'boot-args=linux single'
+
+``-M [SS-4|SS-5|SS-10|SS-20|SS-600MP|LX|Voyager|SPARCClassic] [|SPARCbook]``
+   Set the emulated machine type. Default is SS-5.