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2015-08-24tcg: Remove tcg_gen_trunc_i64_i32Richard Henderson
Replacing it with tcg_gen_extrl_i64_i32. Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-08-13target-mips: Use CPU_LOG_INT for logging related to interruptsRichard Henderson
There are now no unconditional uses of qemu_log in the subdirectory. Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-08-13target-mips: simplify LWL/LDL mask generationAurelien Jarno
The LWL/LDL instructions mask the GPR with a mask depending on the address alignement. It is currently computed by doing: mask = 0x7fffffffffffffffull >> (t1 ^ 63) It's simpler to generate it by doing: mask = ~(-1 << t1) It uses one TCG instruction less, and it avoids a 32/64-bit constant loading which can take a few instructions on RISC hosts. Cc: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-08-13target-mips: update mips32r5-generic into P5600Yongbok Kim
As full specification of P5600 is available, mips32r5-generic should be renamed to P5600 and corrected as its intention. Correct PRid and detail of configuration. Features which are not currently supported are described as FIXME. Fix Config.MM bit location Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> [leon.alrae@imgtec.com: correct cache line sizes and LLAddr shift] Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-08-04target-mips: Copy restrictions from ext/ins to dext/dinsRichard Henderson
The checks in dins is required to avoid triggering an assertion in tcg_gen_deposit_tl. The check in dext is just for completeness. Fold the other D cases in via fallthru. In this case the errant dins appears to be data, not code, as translation failed to stop after a break insn. Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-08-04target-mips: fix semihosting for microMIPS R6Leon Alrae
In semihosting mode the SDBBP 1 instructions should trigger UHI syscall, but in QEMU this does not happen for recently added microMIPS R6. Consequently bare metal microMIPS R6 programs supporting UHI will not run. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-07-28target-mips: fix offset calculation for InterruptsYongbok Kim
Correct computation of vector offsets for EXCP_EXT_INTERRUPT. For instance, if Cause.IV is 0 the vector offset should be 0x180. Simplify the finding vector number logic for the Vectored Interrupts. Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> [leon.alrae@imgtec.com: cosmetic changes] Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-07-28target-mips: fix passing incompatible pointer type in machine.cLeon Alrae
Reported-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-07-16mips/kvm: Sign extend registers written to KVMJames Hogan
In case we're running on a 64-bit host, be sure to sign extend the general purpose registers and hi/lo/pc before writing them to KVM, so as to take advantage of MIPS32/MIPS64 compatibility. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: kvm@vger.kernel.org Cc: qemu-stable@nongnu.org Message-Id: <1429871214-23514-3-git-send-email-james.hogan@imgtec.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-16mips/kvm: Fix Big endian 32-bit register accessJames Hogan
Fix access to 32-bit registers on big endian targets. The pointer passed to the kernel must be for the actual 32-bit value, not a temporary 64-bit value, otherwise on big endian systems the kernel will only interpret the upper half. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: kvm@vger.kernel.org Cc: qemu-stable@nongnu.org Message-Id: <1429871214-23514-2-git-send-email-james.hogan@imgtec.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-15target-mips: fix page fault address for LWL/LWR/LDL/LDRAurelien Jarno
When a LWL, LWR, LDL or LDR instruction triggers a page fault, QEMU currently reports the aligned address in CP0 BadVAddr, while the Windows NT kernel expects the unaligned address. This patch adds a byte access with the unaligned address at the beginning of the LWL/LWR/LDL/LDR instructions to possibly trigger a page fault and fill the QEMU TLB. Cc: Leon Alrae <leon.alrae@imgtec.com> Reported-by: Hervé Poussineau <hpoussin@reactos.org> Tested-by: Hervé Poussineau <hpoussin@reactos.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-07-15target-mips: fix resource leak reported by CoverityLeon Alrae
UHI assert and link operations call lock_user_string() twice to obtain two strings pointed by gpr[4] and gpr[5]. If the second lock_user_string() fails, then the first one won't get freed. Fix this by introducing another macro responsible for obtaining two strings and handling allocation failure. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-07-15target-mips: fix logically dead code reported by CoverityLeon Alrae
Make use of CMPOP in floating-point compare instructions. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-07-15target-mips: correct DERET instructionLeon Alrae
Fix Debug Mode flag clearing, and when DERET is placed between LL and SC do not make SC fail. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-07-15target-mips: fix ASID synchronisation for MIPS MTAurelien Jarno
When syncing the task ASID with EntryHi, correctly or the value instead of assigning it. Reported-by: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Cc: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-07-15target-mips: fix to clear MSACSR.CauseYongbok Kim
MSACSR.Cause bits are needed to be cleared before a vector floating-point instructions. FEXDO.df, FEXUPL.df and FEXUPR.df were missed out. Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-07-15target-mips: fix MIPS64R6-generic configurationYongbok Kim
Fix core configuration for MIPS64R6-generic to make it as close as I6400. I6400 core has 48-bit of Virtual Address available (SEGBITS). MIPS SIMD Architecture is available. Rearrange order of bits to match the specification. Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-07-09Merge remote-tracking branch 'remotes/afaerber/tags/qom-cpu-for-peter' into ↵Peter Maydell
staging QOM CPUState and X86CPU * Further QOM'ification of CPU initialization * Propagation of CPUState arguments and elimination of ENV_GET_CPU() usage * cpu_set_pc() abstraction * CPUClass::disas_set_info() hook # gpg: Signature made Thu Jul 9 14:23:12 2015 BST using RSA key ID 3E7E013F # gpg: Good signature from "Andreas Färber <afaerber@suse.de>" # gpg: aka "Andreas Färber <afaerber@suse.com>" * remotes/afaerber/tags/qom-cpu-for-peter: (22 commits) disas: cris: QOMify target specific disas setup disas: cris: Fix 0 buffer length case disas: microblaze: QOMify target specific disas setup disas: arm: QOMify target specific disas setup disas: arm-a64: Make printfer and stream variable disas: QOMify target specific setup disas: Add print_insn to disassemble info microblaze: boot: Use cpu_set_pc() hw/arm/boot: Use cpu_set_pc() gdbstub: Use cpu_set_pc() helper cpu: Add wrapper for the set_pc() hook cpu-exec: Purge all uses of ENV_GET_CPU() cpu: Change cpu_exec_init() arg to cpu, not env cpu: Change tcg_cpu_exec() arg to cpu, not env gdbstub: Change gdbserver_fork() to accept cpu instead of env translate-all: Change tb_flush() env argument to cpu target-ppc: Move cpu_exec_init() call to realize function cpu: Convert cpu_index into a bitmap cpu: Add Error argument to cpu_exec_init() cpu: Reorder cpu->as, cpu->thread_id, cpu->memory_dispatch init ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-07-09cpu-exec: Purge all uses of ENV_GET_CPU()Peter Crosthwaite
Remove un-needed usages of ENV_GET_CPU() by converting the APIs to use CPUState pointers and retrieving the env_ptr as minimally needed. Scripted conversion for target-* change: for I in target-*/cpu.h; do sed -i \ 's/\(^int cpu_[^_]*_exec(\)[^ ][^ ]* \*s);$/\1CPUState *cpu);/' \ $I; done Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-07-09cpu: Change cpu_exec_init() arg to cpu, not envPeter Crosthwaite
The callers (most of them in target-foo/cpu.c) to this function all have the cpu pointer handy. Just pass it to avoid an ENV_GET_CPU() from core code (in exec.c). Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Michael Walle <michael@walle.cc> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Anthony Green <green@moxielogic.com> Cc: Jia Liu <proljc@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-07-09cpu: Add Error argument to cpu_exec_init()Bharata B Rao
Add an Error argument to cpu_exec_init() to let users collect the error. This is in preparation to change the CPU enumeration logic in cpu_exec_init(). With the new enumeration logic, cpu_exec_init() can fail if cpu_index values corresponding to max_cpus have already been handed out. Since all current callers of cpu_exec_init() are from instance_init, use error_abort Error argument to abort in case of an error. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-07-09mips/kvm: Sync with newer MIPS KVM headersJames Hogan
The KVM_REG_MIPS_COUNT_* definitions are now included in linux-headers/asm-mips/kvm.h since commit b061808d39fa ("linux-headers: update linux headers to kvm/next"), therefore the duplicate definitions in target-mips/kvm.c can now be dropped (the definitions were tweaked slightly in commit 7a52ce8a1607 ("linux-headers: update") which triggered the following build warnings turned errors): target-mips/kvm.c:232:0: error: "KVM_REG_MIPS_COUNT_CTL" redefined [-Werror] linux-headers/asm/kvm.h:129:0: note: this is the location of the previous definition target-mips/kvm.c:236:0: error: "KVM_REG_MIPS_COUNT_RESUME" redefined [-Werror] linux-headers/asm/kvm.h:141:0: note: this is the location of the previous definition target-mips/kvm.c:239:0: error: "KVM_REG_MIPS_COUNT_HZ" redefined [-Werror] linux-headers/asm/kvm.h:147:0: note: this is the location of the previous definition Also update the MIPS_C0_{32,64} macros to utilise definitions more recently added to the asm-mips/kvm.h header. Signed-off-by: James Hogan <james.hogan@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Message-id: 1436433435-24898-3-git-send-email-james.hogan@imgtec.com Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: kvm@vger.kernel.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-07-06Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
* more of Peter Crosthwaite's multiarch preparation patches * unlocked MMIO support in KVM * support for compilation with ICC # gpg: Signature made Mon Jul 6 13:59:20 2015 BST using RSA key ID 78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: exec: skip MMIO regions correctly in cpu_physical_memory_write_rom_internal Stop including qemu-common.h in memory.h kvm: Switch to unlocked MMIO acpi: mark PMTIMER as unlocked kvm: Switch to unlocked PIO kvm: First step to push iothread lock out of inner run loop memory: let address_space_rw/ld*/st* run outside the BQL exec: pull qemu_flush_coalesced_mmio_buffer() into address_space_rw/ld*/st* memory: Add global-locking property to memory regions main-loop: introduce qemu_mutex_iothread_locked main-loop: use qemu_mutex_lock_iothread consistently Fix irq route entries exceeding KVM_MAX_IRQ_ROUTES cpu-defs: Move out TB_JMP defines include/exec: Move tb hash functions out include/exec: Move standard exceptions to cpu-all.h cpu-defs: Move CPU_TEMP_BUF_NLONGS to tcg memory_mapping: Rework cpu related includes cutils: allow compilation with icc qemu-common: add VEC_OR macro Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-07-01kvm: First step to push iothread lock out of inner run loopJan Kiszka
This opens the path to get rid of the iothread lock on vmexits in KVM mode. On x86, the in-kernel irqchips has to be used because we otherwise need to synchronize APIC and other per-cpu state accesses that could be changed concurrently. Regarding pre/post-run callbacks, s390x and ARM should be fine without specific locking as the callbacks are empty. MIPS and POWER require locking for the pre-run callback. For the handle_exit callback, it is non-empty in x86, POWER and s390. Some POWER cases could do without the locking, but it is left in place for now. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <1434646046-27150-7-git-send-email-pbonzini@redhat.com>
2015-06-26target-mips: add mips32r6-generic CPU definitionYongbok Kim
Define a new CPU definition supporting MIPS32 Release 6 ISA and microMIPS32 Release 6 ISA. Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-26target-mips: microMIPS32 R6 POOL16{A, C} instructionsYongbok Kim
microMIPS32 Release 6 POOL16A/ POOL16C instructions Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-26target-mips: microMIPS32 R6 Major instructionsYongbok Kim
Add new microMIPS32 Release 6 Major opcode instructions Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-26target-mips: microMIPS32 R6 POOL32{I, C} instructionsYongbok Kim
Add new microMIPS32 Release 6 POOL32I/POOL32C type instructions Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-26target-mips: microMIPS32 R6 POOL32F instructionsYongbok Kim
Add new microMIPS32 Release 6 POOL32F instructions Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-26target-mips: microMIPS32 R6 POOL32A{XF} instructionsYongbok Kim
Add new microMIPS32 Release 6 pool32a/pool32axf instructions. Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-26target-mips: microMIPS32 R6 branches and jumpsYongbok Kim
Add new microMIPS32 Release 6 branch and jump instructions. Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-26target-mips: add microMIPS32 R6 opcode enumYongbok Kim
Add microMIPS32 Release 6 opcode enum. Remove RI checking for pre-R6 reserved opcode. Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-26target-mips: signal RI for removed instructions in microMIPS R6Yongbok Kim
Signal a Reserved Instruction exception for removed instruction encoding in microMIPS Release 6. Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-26target-mips: raise RI exceptions when FIR.PS = 0Yongbok Kim
64-bit paired-single (PS) floating point data type is optional in the pre-Release 6. It has to raise RI exception when PS type is not implemented. (FIR.PS = 0) (The PS data type is removed in the Release 6.) Loongson-2E and Loongson-2F don't have any implementation field in FCSR0(FIR) but do support PS data format, therefore for these cores RI will not be signalled regardless of PS bit. Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-26target-mips: rearrange gen_compute_compact_branchYongbok Kim
The function will be also used for microMIPS Release 6. Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-26target-mips: refactor {D}LSA, {D}ALIGN, {D}BITSWAPYongbok Kim
Refactor those instructions in order to reuse them for microMIPS32 Release 6. Rearrange gen_move_low32(). Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-26target-mips: remove an unused argumentYongbok Kim
Remove an unused argument from decode_micromips32_opc() Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-26target-mips: add microMIPS TLBINV, TLBINVFYongbok Kim
Add microMIPS TLBINV, TLBINVF Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-26target-mips: fix {RD, WR}PGPR in microMIPSYongbok Kim
rt, rs were swapped Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2015-06-26target-mips: convert host to MIPS errno values when requiredLeon Alrae
Convert only errno values which can be returned by system calls in mips-semi.c and are not generic to all archs. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-06-26target-mips: add Unified Hosting Interface (UHI) supportLeon Alrae
Add UHI semihosting support for MIPS. QEMU run with "-semihosting" option will alter the behaviour of SDBBP 1 instruction -- UHI operation will be called instead of generating a debug exception. Also tweak Malta's pseudo-bootloader. On CPU reset the $4 register is set to -1 if semihosting arguments are passed to indicate that the UHI operations should be used to obtain input arguments. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-06-26target-mips: remove identical code in different branchLeon Alrae
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-06-22disas: Remove uses of CPU envPeter Crosthwaite
disas does not need to access the CPU env for any reason. Change the APIs to accept CPU pointers instead. Small change pattern needs to be applied to all target translate.c. This brings us closer to making disas.o a common-obj and less architecture specific in general. Cc: Richard Henderson <rth@twiddle.net> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Michael Walle <michael@walle.cc> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Jia Liu <proljc@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-06-12target-mips: enable XPA and LPA featuresLeon Alrae
Enable XPA in MIPS32R5-generic and LPA in MIPS64R6-generic. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-06-12target-mips: remove misleading comments in translate_init.cLeon Alrae
PABITS are not hardcoded to 36 bits and we do not model 59 PABITS (which is the architectural limit) in QEMU. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-06-12target-mips: add MTHC0 and MFHC0 instructionsLeon Alrae
Implement MTHC0 and MFHC0 instructions. In MIPS32 they are used to access upper word of extended to 64-bits CP0 registers. In MIPS64, when CP0 destination register specified is the EntryLo0 or EntryLo1, bits 1:0 of the GPR appear at bits 31:30 of EntryLo0 or EntryLo1. This is to compensate for RI and XI, which were shifted to bits 63:62 by MTC0 to EntryLo0 or EntryLo1. Therefore creating separate functions for EntryLo0 and EntryLo1. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-06-12target-mips: add CP0.PageGrain.ELPA supportLeon Alrae
CP0.PageGrain.ELPA enables support for large physical addresses. This field is encoded as follows: 0: Large physical address support is disabled. 1: Large physical address support is enabled. If this bit is a 1, the following changes occur to coprocessor 0 registers: - The PFNX field of the EntryLo0 and EntryLo1 registers is writable and concatenated with the PFN field to form the full page frame number. - Access to optional COP0 registers with PA extension, LLAddr, TagLo is defined. P5600 can operate in 32-bit or 40-bit Physical Address Mode. Therefore if XPA is disabled (CP0.PageGrain.ELPA = 0) then assume 32-bit Address Mode. In MIPS64 assume 36 as default PABITS (when CP0.PageGrain.ELPA = 0). env->PABITS value is constant and indicates maximum PABITS available on a core, whereas env->PAMask is calculated from env->PABITS and is also affected by CP0.PageGrain.ELPA. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-06-12target-mips: support Page Frame Number Extension fieldLeon Alrae
Update tlb->PFN to contain PFN concatenated with PFNX. PFNX is 0 if large physical address is not supported. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-06-12target-mips: extend selected CP0 registers to 64-bits in MIPS32Leon Alrae
Extend EntryLo0, EntryLo1, LLAddr and TagLo from 32 to 64 bits in MIPS32. Introduce gen_move_low32() function which moves low 32 bits from 64-bit temp to GPR; it sign extends 32-bit value on MIPS64 and truncates on MIPS32. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-06-12target-mips: correct MFC0 for CP0.EntryLo in MIPS64Leon Alrae
CP0.EntryLo bits 31:30 have to be cleared. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-21 16:54:12 +0000