diff options
| author |   RajithaY <rajithax.yerrumsetty@intel.com> | 2017-04-25 03:31:15 -0700 |
|---|---|---|
| committer | Rajitha Yerrumchetty <rajithax.yerrumsetty@intel.com> | 2017-05-22 06:48:08 +0000 |
| commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
| tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/target-lm32/README | |
| parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) | |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/target-lm32/README')
| -rw-r--r-- | qemu/target-lm32/README | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/qemu/target-lm32/README b/qemu/target-lm32/README deleted file mode 100644 index ba3508a71..000000000 --- a/qemu/target-lm32/README +++ /dev/null @@ -1,45 +0,0 @@ -LatticeMico32 target --------------------- - -General -------- -All opcodes including the JUART CSRs are supported. - - -JTAG UART ---------- -JTAG UART is routed to a serial console device. For the current boards it -is the second one. Ie to enable it in the qemu virtual console window use -the following command line parameters: - -serial vc -serial vc -This will make serial0 (the lm32_uart) and serial1 (the JTAG UART) -available as virtual consoles. - - -Semihosting ------------ -Semihosting on this target is supported. Some system calls like read, write -and exit are executed on the host if semihosting is enabled. See -target/lm32-semi.c for all supported system calls. Emulation aware programs -can use this mechanism to shut down the virtual machine and print to the -host console. See the tcg tests for an example. - - -Special instructions --------------------- -The translation recognizes one special instruction to halt the cpu: - and r0, r0, r0 -On real hardware this instruction is a nop. It is not used by GCC and -should (hopefully) not be used within hand-crafted assembly. -Insert this instruction in your idle loop to reduce the cpu load on the -host. - - -Ignoring the MSB of the address bus ------------------------------------ -Some SoC ignores the MSB on the address bus. Thus creating a shadow memory -area. As a general rule, 0x00000000-0x7fffffff is cached, whereas -0x80000000-0xffffffff is not cached and used to access IO devices. This -behaviour can be enabled with: - cpu_lm32_set_phys_msb_ignore(env, 1); - |