diff options
author | Thomas Huth <thuth@redhat.com> | 2016-10-11 08:56:52 +0200 |
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committer | Thomas Huth <thuth@redhat.com> | 2016-12-20 21:52:12 +0100 |
commit | fcf5ef2ab52c621a4617ebbef36bf43b4003f4c0 (patch) | |
tree | 2b450d96b01455df8ed908bf8f26ddc388a03380 /target-mips/TODO | |
parent | 82ecffa8c050bf5bbc13329e9b65eac1caa5b55c (diff) |
Move target-* CPU file into a target/ folder
We've currently got 18 architectures in QEMU, and thus 18 target-xxx
folders in the root folder of the QEMU source tree. More architectures
(e.g. RISC-V, AVR) are likely to be included soon, too, so the main
folder of the QEMU sources slowly gets quite overcrowded with the
target-xxx folders.
To disburden the main folder a little bit, let's move the target-xxx
folders into a dedicated target/ folder, so that target-xxx/ simply
becomes target/xxx/ instead.
Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part]
Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part]
Acked-by: Michael Walle <michael@walle.cc> [lm32 part]
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part]
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part]
Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part]
Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part]
Acked-by: Richard Henderson <rth@twiddle.net> [alpha part]
Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part]
Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part]
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [crisµblaze part]
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part]
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'target-mips/TODO')
-rw-r--r-- | target-mips/TODO | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/target-mips/TODO b/target-mips/TODO deleted file mode 100644 index 1d782d8027..0000000000 --- a/target-mips/TODO +++ /dev/null @@ -1,51 +0,0 @@ -Unsolved issues/bugs in the mips/mipsel backend ------------------------------------------------ - -General -------- -- Unimplemented ASEs: - - MDMX - - SmartMIPS - - microMIPS DSP r1 & r2 encodings -- MT ASE only partially implemented and not functional -- Shadow register support only partially implemented, - lacks set switching on interrupt/exception. -- 34K ITC not implemented. -- A general lack of documentation, especially for technical internals. - Existing documentation is x86-centric. -- Reverse endianness bit not implemented -- The TLB emulation is very inefficient: - QEMU's softmmu implements a x86-style MMU, with separate entries - for read/write/execute, a TLB index which is just a modulo of the - virtual address, and a set of TLBs for each user/kernel/supervisor - MMU mode. - MIPS has a single entry for read/write/execute and only one MMU mode. - But it is fully associative with randomized entry indices, and uses - up to 256 ASID tags as additional matching criterion (which roughly - equates to 256 MMU modes). It also has a global flag which causes - entries to match regardless of ASID. - To cope with these differences, QEMU currently flushes the TLB at - each ASID change. Using the MMU modes to implement ASIDs hinges on - implementing the global bit efficiently. -- save/restore of the CPU state is not implemented (see machine.c). - -MIPS64 ------- -- Userland emulation (both n32 and n64) not functional. - -"Generic" 4Kc system emulation ------------------------------- -- Doesn't correspond to any real hardware. Should be removed some day, - U-Boot is the last remaining user. - -PICA 61 system emulation ------------------------- -- No framebuffer support yet. - -MALTA system emulation ----------------------- -- We fake firmware support instead of doing the real thing -- Real firmware (YAMON) falls over when trying to init RAM, presumably - due to lacking system controller emulation. -- Bonito system controller not implemented -- MSC1 system controller not implemented |