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target-arm queue:

Browse source 
* new model of the ARM MPS2/MPS2+ FPGA based development board
  * clean up DISAS_* exit conditions and fix various regressions
    since commits e75449a346 8a6b28c7b5 (in particular including
    ones which broke OP-TEE guests)
  * make Cortex-M3 and M4 correctly default to 8 PMSA regions
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20170717' into staging

target-arm queue:
 * new model of the ARM MPS2/MPS2+ FPGA based development board
 * clean up DISAS_* exit conditions and fix various regressions
   since commits e75449a346 8a6b28c7b5 (in particular including
   ones which broke OP-TEE guests)
 * make Cortex-M3 and M4 correctly default to 8 PMSA regions

# gpg: Signature made Mon 17 Jul 2017 13:43:45 BST
# gpg:                using RSA key 0x3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20170717:
  MAINTAINERS: Add entries for MPS2 board
  hw/arm/mps2: Add ethernet
  hw/arm/mps2: Add SCC
  hw/misc/mps2_scc: Implement MPS2 Serial Communication Controller
  hw/arm/mps2: Add timers
  hw/char/cmsdk-apb-timer: Implement CMSDK APB timer device
  hw/arm/mps2: Add UARTs
  hw/char/cmsdk-apb-uart.c: Implement CMSDK APB UART
  hw/arm/mps2: Implement skeleton mps2-an385 and mps2-an511 board models
  target/arm: use DISAS_EXIT for eret handling
  target/arm: use gen_goto_tb for ISB handling
  target/arm/translate: ensure gen_goto_tb sets exit flags
  target/arm/translate.h: expand comment on DISAS_EXIT
  target/arm/translate: make DISAS_UPDATE match declared semantics
  include/exec/exec-all: document common exit conditions
  target/arm: Make Cortex-M3 and M4 default to 8 PMSA regions
  qdev: support properties which don't set a default value
  qdev-properties.h: Explicitly set the default value for arraylen properties

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2017-07-18 10:35:06 +01:00
commit 6c4591566d
24 changed files with 1673 additions and 24 deletions
Download patch file Download diff file Expand all files Collapse all files

29
include/exec/exec-all.h
View file

@ -35,11 +35,34 @@ typedef abi_ulong tb_page_addr_t;
typedef ram_addr_t tb_page_addr_t;
#endif
/* is_jmp field values */
/* DisasContext is_jmp field values
*
* is_jmp starts as DISAS_NEXT. The translator will keep processing
* instructions until an exit condition is reached. If we reach the
* exit condition and is_jmp is still DISAS_NEXT (because of some
* other condition) we simply "jump" to the next address.
* The remaining exit cases are:
*
* DISAS_JUMP - Only the PC was modified dynamically (e.g computed)
* DISAS_TB_JUMP - Only the PC was modified statically (e.g. branch)
*
* In these cases as long as the PC is updated we can chain to the
* next TB either by exiting the loop or looking up the next TB via
* the loookup helper.
*
* DISAS_UPDATE - CPU State was modified dynamically
*
* This covers any other CPU state which necessities us exiting the
* TCG code to the main run-loop. Typically this includes anything
* that might change the interrupt state.
*
* Individual translators may define additional exit cases to deal
* with per-target special conditions.
*/
#define DISAS_NEXT 0 /* next instruction can be analyzed */
#define DISAS_JUMP 1 /* only pc was modified dynamically */
#define DISAS_UPDATE 2 /* cpu state was modified dynamically */
#define DISAS_TB_JUMP 3 /* only pc was modified statically */
#define DISAS_TB_JUMP 2 /* only pc was modified statically */
#define DISAS_UPDATE 3 /* cpu state was modified dynamically */
#include "qemu/log.h"