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2021-06-11Add a function named packet_new_nocopy for COLO.Rao, Lei
Use the packet_new_nocopy instead of packet_new in the filter-rewriter module. There will be one less memory copy in the processing of each network packet. Signed-off-by: Lei Rao <lei.rao@intel.com> Signed-off-by: Zhang Chen <chen.zhang@intel.com> Reviewed-by: Zhang Chen <chen.zhang@intel.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-06-11Remove migrate_set_block_enabled in checkpointRao, Lei
We can detect disk migration in migrate_prepare, if disk migration is enabled in COLO mode, we can directly report an error.and there is no need to disable block migration at every checkpoint. Signed-off-by: Lei Rao <lei.rao@intel.com> Signed-off-by: Zhang Chen <chen.zhang@intel.com> Reviewed-by: Li Zhijian <lizhijian@fujitsu.com> Reviewed-by: Zhang Chen <chen.zhang@intel.com> Reviewed-by: Lukas Straub <lukasstraub2@web.de> Tested-by: Lukas Straub <lukasstraub2@web.de> Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-06-11Optimize the function of filter_sendRao, Lei
The iov_size has been calculated in filter_send(). we can directly return the size.In this way, this is no need to repeat calculations in filter_redirector_receive_iov(); Signed-off-by: Lei Rao <lei.rao@intel.com> Reviewed-by: Li Zhijian <lizhijian@fujitsu.com> Reviewed-by: Zhang Chen <chen.zhang@intel.com> Reviewed-by: Lukas Straub <lukasstraub2@web.de> Tested-by: Lukas Straub <lukasstraub2@web.de> Signed-off-by: Zhang Chen <chen.zhang@intel.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-06-11Fix the qemu crash when guest shutdown during checkpointRao, Lei
This patch fixes the following: qemu-system-x86_64: invalid runstate transition: 'colo' ->'shutdown' Aborted (core dumped) Signed-off-by: Lei Rao <lei.rao@intel.com> Reviewed-by: Li Zhijian <lizhijian@fujitsu.com> Reviewed-by: Zhang Chen <chen.zhang@intel.com> Reviewed-by: Lukas Straub <lukasstraub2@web.de> Tested-by: Lukas Straub <lukasstraub2@web.de> Signed-off-by: Zhang Chen <chen.zhang@intel.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-06-11Remove some duplicate trace code.Rao, Lei
There is the same trace code in the colo_compare_packet_payload. Signed-off-by: Lei Rao <lei.rao@intel.com> Reviewed-by: Li Zhijian <lizhijian@fujitsu.com> Reviewed-by: Zhang Chen <chen.zhang@intel.com> Reviewed-by: Lukas Straub <lukasstraub2@web.de> Tested-by: Lukas Straub <lukasstraub2@web.de> Signed-off-by: Zhang Chen <chen.zhang@intel.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-06-11netdev: add more commands to preconfig modePaolo Bonzini
Creating and destroying network backend does not require a fully constructed machine. Allow the related monitor commands to run before machine initialization has concluded. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-06-11vhost-vdpa: remove the unused vhost_vdpa_get_acked_features()Jason Wang
No user for this helper, let's remove it. Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-06-11vhost-vdpa: don't initialize backend_featuresJason Wang
We used to initialize backend_features during vhost_vdpa_init() regardless whether or not it was supported by vhost. This will lead the unsupported features like VIRTIO_F_IN_ORDER to be included and set to the vhost-vdpa during vhost_dev_start. Because the VIRTIO_F_IN_ORDER is not supported by vhost-vdpa so it won't be advertised to guest which will break the datapath. Fix this by not initializing the backend_features, so the acked_features could be built only from guest features via vhost_net_ack_features(). Fixes: 108a64818e69b ("vhost-vdpa: introduce vhost-vdpa backend") Cc: qemu-stable@nongnu.org Cc: Gautam Dawar <gdawar@xilinx.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-06-11vhost-vdpa: map virtqueue notification area if possibleJason Wang
This patch implements the vq notification mapping support for vhost-vDPA. This is simply done by using mmap()/munmap() for the vhost-vDPA fd during device start/stop. For the device without notification mapping support, we fall back to eventfd based notification gracefully. Reviewed-by: Si-Wei Liu <si-wei.liu@oracle.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-06-11vhost-vdpa: skip ram device from the IOTLB mappingJason Wang
vDPA is not tie to any specific hardware, for safety and simplicity, vhost-vDPA doesn't allow MMIO area to be mapped via IOTLB. Only the doorbell could be mapped via mmap(). So this patch exclude skip the ram device from the IOTLB mapping. Reviewed-by: Si-Wei Liu <si-wei.liu@oracle.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-06-09Merge remote-tracking branch ↵Peter Maydell
'remotes/dgilbert-gitlab/tags/pull-migration-20210609a' into staging Migration pull for 2021-06-09 Yank crash fix from Leo RDMA fix from Li mptcp support from me dirty-rate changes from Hyman and Peter (Note I've switched to the gitlab I've been using for virtiofs pulls) Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> # gpg: Signature made Wed 09 Jun 2021 15:40:01 BST # gpg: using RSA key 45F5C71B4A0CB7FB977A9FA90516331EBC5BFDE7 # gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" [full] # Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A 9FA9 0516 331E BC5B FDE7 * remotes/dgilbert-gitlab/tags/pull-migration-20210609a: hmp: Add "calc_dirty_rate" and "info dirty_rate" cmds migration/dirtyrate: make sample page count configurable sockets: Support multipath TCP migration/socket: Close the listener at the end migration: Add cleanup hook for inwards migration io/net-listener: Call the notifier during finalize channel-socket: Only set CLOEXEC if we have space for fds migration/rdma: Fix cm event use after free yank: Unregister function when using TLS migration Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-06-08hmp: Add "calc_dirty_rate" and "info dirty_rate" cmdsPeter Xu
These two commands are missing when adding the QMP sister commands. Add them, so developers can play with them easier. Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn> Message-Id: <4cc0039fc3ad6145136770cf3b0f056c09a2910b.1623027729.git.huangy81@chinatelecom.cn> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-06-08migration/dirtyrate: make sample page count configurableHyman Huang(黄勇)
introduce optional sample-pages argument in calc-dirty-rate, making sample page count per GB configurable so that more accurate dirtyrate can be calculated. Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn> Message-Id: <3103453a3b2796f929269c99a6ad81a9a7f1f405.1623027729.git.huangy81@chinatelecom.cn> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Wrapped a couple of long lines
2021-06-08sockets: Support multipath TCPDr. David Alan Gilbert
Multipath TCP allows combining multiple interfaces/routes into a single socket, with very little work for the user/admin. It's enabled by 'mptcp' on most socket addresses: ./qemu-system-x86_64 -nographic -incoming tcp:0:4444,mptcp Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20210421112834.107651-6-dgilbert@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-06-08migration/socket: Close the listener at the endDr. David Alan Gilbert
Delay closing the listener until the cleanup hook at the end; mptcp needs the listener to stay open while the other paths come in. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20210421112834.107651-5-dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-06-08migration: Add cleanup hook for inwards migrationDr. David Alan Gilbert
Add a cleanup hook for incoming migration that gets called at the end as a way for a transport to allow cleanup. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20210421112834.107651-4-dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-06-08io/net-listener: Call the notifier during finalizeDr. David Alan Gilbert
Call the notifier during finalize; it's currently only called if we change it, which is not the intent. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20210421112834.107651-3-dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-06-08channel-socket: Only set CLOEXEC if we have space for fdsDr. David Alan Gilbert
MSG_CMSG_CLOEXEC cleans up received fd's; it's really only for Unix sockets, but currently we enable it for everything; some socket types (IP_MPTCP) don't like this. Only enable it when we're giving the recvmsg room to receive fd's anyway. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20210421112834.107651-2-dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-06-08migration/rdma: Fix cm event use after freeLi Zhijian
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com> Message-Id: <20210602023506.3821293-1-lizhijian@cn.fujitsu.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-06-08yank: Unregister function when using TLS migrationLeonardo Bras
After yank feature was introduced in migration, whenever migration is started using TLS, the following error happens in both source and destination hosts: (qemu) qemu-kvm: ../util/yank.c:107: yank_unregister_instance: Assertion `QLIST_EMPTY(&entry->yankfns)' failed. This happens because of a missing yank_unregister_function() when using qio-channel-tls. Fix this by also allowing TYPE_QIO_CHANNEL_TLS object type to perform yank_unregister_function() in channel_close() and multifd_load_cleanup(). Also, inside migration_channel_connect() and migration_channel_process_incoming() move yank_register_function() so it only runs once on a TLS migration. Fixes: b5eea99ec2f ("migration: Add yank feature", 2021-01-13) Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1964326 Signed-off-by: Leonardo Bras <leobras.c@gmail.com> Reviewed-by: Lukas Straub <lukasstraub2@web.de> Reviewed-by: Peter Xu <peterx@redhat.com> -- Changes since v2: - Dropped all references to ioc->master - yank_register_function() and yank_unregister_function() now only run once in a TLS migration. Changes since v1: - Cast p->c to QIOChannelTLS into multifd_load_cleanup() Message-Id: <20210601054030.1153249-1-leobras.c@gmail.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-06-08Merge remote-tracking branch ↵Peter Maydell
'remotes/alistair/tags/pull-riscv-to-apply-20210608-1' into staging Second RISC-V PR for QEMU 6.1 - Update the PLIC and CLINT DT bindings - Improve documentation for RISC-V machines - Support direct kernel boot for microchip_pfsoc - Fix WFI exception behaviour - Improve CSR printing - Initial support for the experimental Bit Manip extension # gpg: Signature made Tue 08 Jun 2021 01:28:27 BST # gpg: using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054 # gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [full] # Primary key fingerprint: F6C4 AC46 D493 4868 D3B8 CE8F 21E1 0D29 DF97 7054 * remotes/alistair/tags/pull-riscv-to-apply-20210608-1: (32 commits) target/riscv: rvb: add b-ext version cpu option target/riscv: rvb: support and turn on B-extension from command line target/riscv: rvb: add/shift with prefix zero-extend target/riscv: rvb: address calculation target/riscv: rvb: generalized or-combine target/riscv: rvb: generalized reverse target/riscv: rvb: rotate (left/right) target/riscv: rvb: shift ones target/riscv: rvb: single-bit instructions target/riscv: add gen_shifti() and gen_shiftiw() helper functions target/riscv: rvb: sign-extend instructions target/riscv: rvb: min/max instructions target/riscv: rvb: pack two words into one register target/riscv: rvb: logic-with-negate target/riscv: rvb: count bits set target/riscv: rvb: count leading/trailing zeros target/riscv: reformat @sh format encoding for B-extension target/riscv: Pass the same value to oprsz and maxsz. target/riscv/pmp: Add assert for ePMP operations target/riscv: Dump CSR mscratch/sscratch/satp ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-06-08target/riscv: rvb: add b-ext version cpu optionFrank Chang
Default b-ext version is v0.93. Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210505160620.15723-18-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: rvb: support and turn on B-extension from command lineKito Cheng
B-extension is default off, use cpu rv32 or rv64 with x-b=true to enable B-extension. Signed-off-by: Kito Cheng <kito.cheng@sifive.com> Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210505160620.15723-17-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: rvb: add/shift with prefix zero-extendKito Cheng
Signed-off-by: Kito Cheng <kito.cheng@sifive.com> Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210505160620.15723-16-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: rvb: address calculationKito Cheng
Signed-off-by: Kito Cheng <kito.cheng@sifive.com> Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210505160620.15723-15-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: rvb: generalized or-combineFrank Chang
Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210505160620.15723-14-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: rvb: generalized reverseFrank Chang
Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210505160620.15723-13-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: rvb: rotate (left/right)Kito Cheng
Signed-off-by: Kito Cheng <kito.cheng@sifive.com> Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210505160620.15723-12-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: rvb: shift onesKito Cheng
Signed-off-by: Kito Cheng <kito.cheng@sifive.com> Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210505160620.15723-11-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: rvb: single-bit instructionsFrank Chang
Signed-off-by: Kito Cheng <kito.cheng@sifive.com> Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210505160620.15723-10-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: add gen_shifti() and gen_shiftiw() helper functionsFrank Chang
Add gen_shifti() and gen_shiftiw() helper functions to reuse the same interfaces for immediate shift instructions. Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210505160620.15723-9-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: rvb: sign-extend instructionsKito Cheng
Signed-off-by: Kito Cheng <kito.cheng@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Frank Chang <frank.chang@sifive.com> Message-id: 20210505160620.15723-8-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: rvb: min/max instructionsKito Cheng
Signed-off-by: Kito Cheng <kito.cheng@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Frank Chang <frank.chang@sifive.com> Message-id: 20210505160620.15723-7-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: rvb: pack two words into one registerKito Cheng
Signed-off-by: Kito Cheng <kito.cheng@sifive.com> Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210505160620.15723-6-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: rvb: logic-with-negateKito Cheng
Signed-off-by: Kito Cheng <kito.cheng@sifive.com> Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210505160620.15723-5-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: rvb: count bits setFrank Chang
Signed-off-by: Kito Cheng <kito.cheng@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Frank Chang <frank.chang@sifive.com> Message-id: 20210505160620.15723-4-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: rvb: count leading/trailing zerosKito Cheng
Signed-off-by: Kito Cheng <kito.cheng@sifive.com> Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210505160620.15723-3-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: reformat @sh format encoding for B-extensionKito Cheng
Signed-off-by: Kito Cheng <kito.cheng@sifive.com> Signed-off-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210505160620.15723-2-frank.chang@sifive.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: Pass the same value to oprsz and maxsz.LIU Zhiwei
Since commit e2e7168a214b0ed98dc357bba96816486a289762, if oprsz is still zero(as we don't use this field), simd_desc will trigger an assert. Besides, tcg_gen_gvec_*_ptr calls simd_desc in it's implementation. Here we pass the value to maxsz and oprsz to bypass the assert. Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210521054816.1784297-1-zhiwei_liu@c-sky.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv/pmp: Add assert for ePMP operationsAlistair Francis
Although we construct epmp_operation in such a way that it can only be between 0 and 15 Coverity complains that we don't handle the other possible cases. To fix Coverity and make it easier for humans to read add a default case to the switch statement that calls g_assert_not_reached(). Fixes: CID 1453108 Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Message-id: ec5f225928eec448278c82fcb1f6805ee61dde82.1621550996.git.alistair.francis@wdc.com
2021-06-08target/riscv: Dump CSR mscratch/sscratch/satpChangbin Du
This dumps the CSR mscratch/sscratch/satp and meanwhile aligns the output of CSR mtval/stval. Signed-off-by: Changbin Du <changbin.du@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210519155738.20486-1-changbin.du@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: Remove unnecessary riscv_*_names[] declarationBin Meng
riscv_excp_names[] and riscv_intr_names[] are only referenced by target/riscv/cpu.c locally. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210514052435.2203156-1-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08target/riscv: Do not include 'pmp.h' in user emulationPhilippe Mathieu-Daudé
Physical Memory Protection is a system feature. Avoid polluting the user-mode emulation by its definitions. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210516205333.696094-1-f4bug@amsat.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08docs/system: Move the RISC-V -bios information to removedAlistair Francis
QEMU 5.1 changed the behaviour of the default boot for the RISC-V virt and sifive_u machines. This patch moves that change from the deprecated.rst file to the removed-features.rst file and the target-riscv.rst. Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 4f1c261e7f69045ab8bb8926d85fe1d35e48ea5b.1620081256.git.alistair.francis@wdc.com
2021-06-08target/riscv: fix wfi exception behaviorJose Martins
The wfi exception trigger behavior should take into account user mode, hstatus.vtw, and the fact the an wfi might raise different types of exceptions depending on various factors: If supervisor mode is not present: - an illegal instruction exception should be generated if user mode executes and wfi instruction and mstatus.tw = 1. If supervisor mode is present: - when a wfi instruction is executed, an illegal exception should be triggered if either the current mode is user or the mode is supervisor and mstatus.tw is set. Plus, if the hypervisor extensions are enabled: - a virtual instruction exception should be raised when a wfi is executed from virtual-user or virtual-supervisor and hstatus.vtw is set. Signed-off-by: Jose Martins <josemartins90@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210420213656.85148-1-josemartins90@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08hw/riscv: microchip_pfsoc: Support direct kernel bootBin Meng
At present the Microchip Icicle Kit machine only supports using '-bios' to load the HSS, and does not support '-kernel' for direct kernel booting just like other RISC-V machines do. One has to use U-Boot which is chain-loaded by HSS, to load a kernel for testing. This is not so convenient. Adding '-kernel' support together with the existing '-bios', we follow the following table to select which payload we execute: -bios | -kernel | payload ------+------------+-------- N | N | HSS Y | don't care | HSS N | Y | kernel This ensures backwards compatibility with how we used to expose '-bios' to users. When '-kernel' is used for direct boot, '-dtb' must be present to provide a valid device tree for the board, as we don't generate device tree. When direct kernel boot is used, the OpenSBI fw_dynamic BIOS image is used to boot a payload like U-Boot or OS kernel directly. Documentation is updated to describe the direct kernel boot. Note as of today there is still no PolarFire SoC support in the upstream Linux kernel hence the document does not include instructions for that. It will be updated in the future. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210430071302.1489082-8-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08hw/riscv: Use macros for BIOS image namesBin Meng
The OpenSBI BIOS image names are used by many RISC-V machines. Let's define macros for them. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210430071302.1489082-7-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08docs/system/riscv: sifive_u: Document '-dtb' usageBin Meng
Update the 'sifive_u' machine documentation to mention the '-dtb' option that can be used to pass a custom DTB to QEMU. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210430071302.1489082-6-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08docs/system/riscv: Correct the indentation level of supported devicesBin Meng
The supported device bullet list has an additional space before each entry, which makes a wrong indentation level. Correct it. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210430071302.1489082-5-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08hw/riscv: Support the official PLIC DT bindingsBin Meng
The official DT bindings of PLIC uses "sifive,plic-1.0.0" as the compatible string in the upstream Linux kernel. "riscv,plic0" is now legacy and has to be kept for backward compatibility of legacy systems. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210430071302.1489082-4-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-26 22:54:48 +0000