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13edcf59 |
| 06-Nov-2023 |
Peter Maydell <peter.maydell@linaro.org> |
hw/arm/vexpress-a9: Remove useless mapping of RAM at address 0
On the vexpress-a9 board we try to map both RAM and flash to address 0, as seen in "info mtree":
address-space: memory 0000000000000
hw/arm/vexpress-a9: Remove useless mapping of RAM at address 0
On the vexpress-a9 board we try to map both RAM and flash to address 0, as seen in "info mtree":
address-space: memory 0000000000000000-ffffffffffffffff (prio 0, i/o): system 0000000000000000-0000000003ffffff (prio 0, romd): alias vexpress.flashalias @vexpress.flash0 0000000000000000-0000000003ffffff 0000000000000000-0000000003ffffff (prio 0, ram): alias vexpress.lowmem @vexpress.highmem 0000000000000000-0000000003ffffff 0000000010000000-0000000010000fff (prio 0, i/o): arm-sysctl 0000000010004000-0000000010004fff (prio 0, i/o): pl041 (etc)
The flash "wins" and the RAM mapping is useless (but also harmless).
This happened as a result of commit 6ec1588e in 2014, which changed "we always map the RAM to the low addresses for vexpress-a9" to "we always map flash in the low addresses", but forgot to stop mapping the RAM.
In real hardware, this low part of memory is remappable, both at runtime by the guest writing to a control register, and configurably as to what you get out of reset -- you can have the first flash device, or the second, or the DDR2 RAM, or the external AXI bus (which for QEMU means "nothing there"). In an ideal world we would support that remapping both at runtime and via a machine property to select the out-of-reset behaviour.
Pending anybody caring enough to implement the full remapping behaviour: * remove the useless mapped-but-inaccessible lowram MR * document that QEMU doesn't support remapping of low memory
Fixes: 6ec1588e ("hw/arm/vexpress: Alias NOR flash at 0 for vexpress-a9") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1761 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20231103185602.875849-1-peter.maydell@linaro.org
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Revision tags: v8.0.0, v7.2.0, v7.0.0, v6.2.0, v6.1.0 |
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#
f4ceebde |
| 13-Feb-2021 |
Peter Maydell <peter.maydell@linaro.org> |
Merge remote-tracking branch 'remotes/vivier/tags/m68k-for-6.0-pull-request' into staging Pull request m68k-20210212 Move bootinfo headers to include/standard-headers/asm-m68k A
Merge remote-tracking branch 'remotes/vivier/tags/m68k-for-6.0-pull-request' into staging Pull request m68k-20210212 Move bootinfo headers to include/standard-headers/asm-m68k Add M68K_FEATURE_MSP, M68K_FEATURE_MOVEC, M68K_FEATURE_M68010 Add 68060 CR BUSCR and PCR (unimplemented) CPU types and features cleanup # gpg: Signature made Fri 12 Feb 2021 21:14:28 GMT # gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C # gpg: issuer "laurent@vivier.eu" # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full] # gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full] # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full] # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * remotes/vivier/tags/m68k-for-6.0-pull-request: m68k: import bootinfo headers from linux m68k: add MSP detection support for stack pointer swap helpers m68k: MOVEC insn. should generate exception if wrong CR is accessed m68k: add missing BUSCR/PCR CR defines, and BUSCR/PCR/CAAR CR to m68k_move_to/from m68k: improve comments on m68k_move_to/from helpers m68k: cascade m68k_features by m680xx_cpu_initfn() to improve readability m68k: improve cpu instantiation comments Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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#
41d306ec |
| 09-Feb-2021 |
Peter Maydell <peter.maydell@linaro.org> |
Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging * Fuzzing improvements (Qiuhao, Alexander) * i386: Fix BMI decoding for instructions with the 0x66 pr
Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging * Fuzzing improvements (Qiuhao, Alexander) * i386: Fix BMI decoding for instructions with the 0x66 prefix (David) * initial attempt at fixing event_notifier emulation (Maxim) * i386: PKS emulation, fix for "qemu-system-i386 -cpu host" (myself) * meson: RBD test fixes (myself) * meson: TCI warnings (Philippe) * Leaner build for --disable-guest-agent, --disable-system and --disable-tools (Philippe, Stefan) * --enable-tcg-interpreter fix (Richard) * i386: SVM feature bits (Wei) * KVM bugfix (Thomas H.) * Add missing MemoryRegionOps callbacks (PJP) # gpg: Signature made Mon 08 Feb 2021 14:15:35 GMT # gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83 # gpg: issuer "pbonzini@redhat.com" # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full] # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full] # 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-gitlab/tags/for-upstream: (46 commits) target/i386: Expose VMX entry/exit load pkrs control bits target/i386: Add support for save/load IA32_PKRS MSR imx7-ccm: add digprog mmio write method tz-ppc: add dummy read/write methods spapr_pci: add spapr msi read method nvram: add nrf51_soc flash read method prep: add ppc-parity write method vfio: add quirk device write method pci-host: designware: add pcie-msi read method hw/pci-host: add pci-intack write method cpu-throttle: Remove timer_mod() from cpu_throttle_set() replay: rng-builtin support pc-bios/descriptors: fix paths in json files replay: fix replay of the interrupts accel/kvm/kvm-all: Fix wrong return code handling in dirty log code qapi/meson: Restrict UI module to system emulation and tools qapi/meson: Restrict system-mode specific modules qapi/meson: Remove QMP from user-mode emulation qapi/meson: Restrict qdev code to system-mode emulation meson: Restrict emulation code ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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#
34b7d419 |
| 08-Feb-2021 |
Peter Maydell <peter.maydell@linaro.org> |
Merge remote-tracking branch 'remotes/philmd-gitlab/tags/integration-testing-20210208' into staging Integration testing patches Tests added: - Armbian 20.08 on Orange Pi PC (Phi
Merge remote-tracking branch 'remotes/philmd-gitlab/tags/integration-testing-20210208' into staging Integration testing patches Tests added: - Armbian 20.08 on Orange Pi PC (Philippe) - MPC8544ds machine (Thomas) - Virtex-ml507 ppc machine (Thomas) - Re-enable the microblaze test (Thomas) Various fixes and documentation improvements from Cleber. # gpg: Signature made Mon 08 Feb 2021 20:19:12 GMT # gpg: using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE # gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full] # Primary key fingerprint: FAAB E75E 1291 7221 DCFD 6BB2 E3E3 2C2C DEAD C0DE * remotes/philmd-gitlab/tags/integration-testing-20210208: Acceptance Tests: remove unnecessary tag from documentation example Acceptance tests: clarify ssh connection failure reason tests/acceptance/virtiofs_submounts: required space between IP and port tests/acceptance/virtiofs_submounts: standardize port as integer tests/acceptance/virtiofs_submounts: use a virtio-net device instead tests/acceptance/virtiofs_submounts: do not ask for ssh key password tests/acceptance/virtiofs_submounts: use workdir property tests/acceptance/boot_linux: rename misleading cloudinit method tests/acceptance/boot_linux: fix typo on cloudinit error message tests/acceptance: Re-enable the microblaze test tests/acceptance: Add a test for the virtex-ml507 ppc machine tests/acceptance: Test the mpc8544ds machine tests/acceptance: Move the pseries test to a separate file tests/acceptance: Test U-Boot/Linux from Armbian 20.08 on Orange Pi PC tests/acceptance: Extract do_test_arm_orangepi_armbian_uboot() method tests/acceptance: Introduce tesseract_ocr() helper tests/acceptance: Extract tesseract_available() helper in new namespace Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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#
2436651b |
| 08-Feb-2021 |
Peter Maydell <peter.maydell@linaro.org> |
Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-20210208a' into staging Migration pull 2021-02-08 v2 Dropped vmstate: Fix memory leak in vmstate_handle_allo
Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-20210208a' into staging Migration pull 2021-02-08 v2 Dropped vmstate: Fix memory leak in vmstate_handle_alloc Broke on Power Added migration: only check page size match if RAM postcopy is enabled # gpg: Signature made Mon 08 Feb 2021 11:28:14 GMT # 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/tags/pull-migration-20210208a: (27 commits) migration: only check page size match if RAM postcopy is enabled migration: introduce snapshot-{save, load, delete} QMP commands iotests: fix loading of common.config from tests/ subdir iotests: add support for capturing and matching QMP events migration: introduce a delete_snapshot wrapper migration: wire up support for snapshot device selection migration: control whether snapshots are ovewritten block: rename and alter bdrv_all_find_snapshot semantics block: allow specifying name of block device for vmstate storage block: add ability to specify list of blockdevs during snapshot migration: stop returning errno from load_snapshot() migration: Make save_snapshot() return bool, not 0/-1 block: push error reporting into bdrv_all_*_snapshot functions migration: Display the migration blockers migration: Add blocker information migration: Fix a few absurdly defective error messages migration: Fix cache_init()'s "Failed to allocate" error messages migration: Clean up signed vs. unsigned XBZRLE cache-size migration: Fix migrate-set-parameters argument validation migration: introduce 'userfaultfd-wrlat.py' script ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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#
4f799257 |
| 08-Feb-2021 |
Peter Maydell <peter.maydell@linaro.org> |
Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2021-02-08' into staging QAPI patches patches for 2021-02-08 # gpg: Signature made Mon 08 Feb 2021 13:54:26 GMT # gpg
Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2021-02-08' into staging QAPI patches patches for 2021-02-08 # gpg: Signature made Mon 08 Feb 2021 13:54:26 GMT # gpg: using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653 # gpg: issuer "armbru@redhat.com" # gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full] # gpg: aka "Markus Armbruster <armbru@pond.sub.org>" [full] # Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653 * remotes/armbru/tags/pull-qapi-2021-02-08: qapi: enable strict-optional checks qapi: type 'info' as Optional[QAPISourceInfo] qapi/gen: Drop support for QAPIGen without a file name qapi/commands: Simplify command registry generation qapi/gen: Support switching to another module temporarily qapi/gen: write _genc/_genh access shims qapi: centralize the built-in module name definition qapi/gen: Combine ._add_[user|system]_module qapi: use './builtin' as the built-in module name qapi: use explicitly internal module names qapi/gen: Replace ._begin_system_module() qapi: centralize is_[user|system|builtin]_module methods qapi/gen: inline _wrap_ifcond into end_if() qapi/main: handle theoretical None-return from re.match() qapi/events: fix visit_event typing qapi/commands: assert arg_type is not None Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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#
8eef07b4 |
| 08-Feb-2021 |
Peter Maydell <peter.maydell@linaro.org> |
Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-gdbstub-docs-080221-1' into staging Testing, gdbstub and doc tweaks: - increase timeout on replay kernel acceptance
Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-gdbstub-docs-080221-1' into staging Testing, gdbstub and doc tweaks: - increase timeout on replay kernel acceptance test - fixes for binfmt_misc docker images - better gdb version detection - don't silently skip gdb tests - fix for gdbstub auxv handling - cleaner handling of check-tcg on tcg disabled builds - expand vexpress/versitile docs with examples # gpg: Signature made Mon 08 Feb 2021 11:12:03 GMT # gpg: using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44 # gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full] # Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44 * remotes/stsquad/tags/pull-testing-gdbstub-docs-080221-1: docs/system: document an example booting the versatilepb machine docs/system: document an example vexpress-a15 invocation tests/Makefile.include: don't use TARGET_DIRS for check-tcg scripts/mtest2make.py: export all-%s-targets variable and use it tests/tcg: Replace /bin/true by true (required on macOS) gdbstub: Fix handle_query_xfer_auxv tests/tcg: don't silently skip the gdb tests configure: bump the minimum gdb version for check-tcg to 9.1 configure: make version_ge more tolerant of shady version input tests/docker: add a docker-exec-copy-test tests/docker: alias docker-help target for consistency tests/docker: preserve original name when copying libs tests/docker: make _copy_with_mkdir accept missing files tests/docker: Fix typo in help message tests/docker: Fix _get_so_libs() for docker-binfmt-image tests/acceptance: Increase the timeout in the replay tests Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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#
a5dbb175 |
| 02-Feb-2021 |
Alex Bennée <alex.bennee@linaro.org> |
docs/system: document an example vexpress-a15 invocation The wiki and the web are curiously absent of the right runes to boot a vexpress model so I had to work from first principles to w
docs/system: document an example vexpress-a15 invocation The wiki and the web are curiously absent of the right runes to boot a vexpress model so I had to work from first principles to work it out. Use the more modern -drive notation so alternative backends can be used (unlike the hardwired -sd mode). Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Cc: Anders Roxell <anders.roxell@linaro.org> Message-Id: <20210202134001.25738-15-alex.bennee@linaro.org>
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Revision tags: v5.2.0 |
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#
5acc270a |
| 25-Jun-2020 |
Peter Maydell <peter.maydell@linaro.org> |
Merge remote-tracking branch 'remotes/xtensa/tags/20200625-xtensa' into staging target/xtensa fixes for 5.1: - fix access to special registers missing in the core configuration;
Merge remote-tracking branch 'remotes/xtensa/tags/20200625-xtensa' into staging target/xtensa fixes for 5.1: - fix access to special registers missing in the core configuration; - fix simcall opcode behavior for new hardware; - drop gen_io_end call from xtensa translator. # gpg: Signature made Thu 25 Jun 2020 09:08:58 BST # gpg: using RSA key 2B67854B98E5327DCDEB17D851F9CC91F83FA044 # gpg: issuer "jcmvbkbc@gmail.com" # gpg: Good signature from "Max Filippov <filippov@cadence.com>" [unknown] # gpg: aka "Max Filippov <max.filippov@cogentembedded.com>" [full] # gpg: aka "Max Filippov <jcmvbkbc@gmail.com>" [full] # Primary key fingerprint: 2B67 854B 98E5 327D CDEB 17D8 51F9 CC91 F83F A044 * remotes/xtensa/tags/20200625-xtensa: target/xtensa: drop gen_io_end call target/xtensa: fix simcall for newer hardware target/xtensa: fetch HW version from configuration overlay target/xtensa: work around missing SR definitions Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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cccdd8c7 |
| 02-Jun-2020 |
Peter Maydell <peter.maydell@linaro.org> |
Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging machine queue, 2020-05-13 Bug fixes: * hostmem: don't use mbind() if host-nodes is em
Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging machine queue, 2020-05-13 Bug fixes: * hostmem: don't use mbind() if host-nodes is empty (Igor Mammedov) # gpg: Signature made Wed 13 May 2020 15:00:25 BST # gpg: using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6 # gpg: issuer "ehabkost@redhat.com" # gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full] # Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6 * remotes/ehabkost/tags/machine-next-pull-request: hostmem: don't use mbind() if host-nodes is empty Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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#
1cc9c62e |
| 22-May-2020 |
Peter Maydell <peter.maydell@linaro.org> |
Merge remote-tracking branch 'remotes/mcayland/tags/qemu-openbios-20200521' into staging qemu-openbios queue # gpg: Signature made Thu 21 May 2020 21:02:44 BST # gpg:
Merge remote-tracking branch 'remotes/mcayland/tags/qemu-openbios-20200521' into staging qemu-openbios queue # gpg: Signature made Thu 21 May 2020 21:02:44 BST # gpg: using RSA key CC621AB98E82200D915CC9C45BC2C56FAE0F321F # gpg: issuer "mark.cave-ayland@ilande.co.uk" # gpg: Good signature from "Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>" [full] # Primary key fingerprint: CC62 1AB9 8E82 200D 915C C9C4 5BC2 C56F AE0F 321F * remotes/mcayland/tags/qemu-openbios-20200521: Update OpenBIOS images to 4704d9eb built from submodule. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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5a1d4244 |
| 07-May-2020 |
Peter Maydell <peter.maydell@linaro.org> |
docs/system: Document Arm Versatile Express boards Provide a minimal documentation of the Versatile Express boards (vexpress-a9, vexpress-a15). Signed-off-by: Peter Maydell <pet
docs/system: Document Arm Versatile Express boards Provide a minimal documentation of the Versatile Express boards (vexpress-a9, vexpress-a15). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20200507151819.28444-4-peter.maydell@linaro.org
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