Commit graph

93031 commits

Author SHA1 Message Date
Daniel Henrique Barboza 867683d86e ppc/pnv: move nest_regs_mr to PnvPHB4
We're now able to cleanly move nest_regs_mr to the PnvPHB4 device.

One thing of notice here is the need to use a phb->stack->pec pointer
because pnv_pec_stk_nest_xscom_write requires a PEC object. Another
thing that can be noticed in the use of 'stack->stack_no' that still
remains throughout the XSCOM code.

After moving all MemoryRegions to the PnvPHB4 object, this illustrates
what is the remaining role of the stack: provide a PEC pointer and the
'stack_no' information. If we can provide these in the PnvPHB4 object
instead (spoiler: we can, and we will), the PnvPhb4PecStack device will
be deprecated and can be removed.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220113192952.911188-10-danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:31 +01:00
Daniel Henrique Barboza e19e998ce2 ppc/pnv: change pnv_pec_stk_update_map() to use PnvPHB4
stack->nest_regs_mr wasn't migrated to PnvPHB4 together with phb->nest_regs[] in
the previous patch. We were unable to cleanly convert its write MemoryRegionOps,
pnv_pec_stk_nest_xscom_write(), to use PnvPHB4 instead of PnvPhb4PecStack due to
pnv_pec_stk_update_map() using a stack. Thing is, we're now able to convert
pnv_pec_stk_update_map() because of what the did in previous patch.

The need for this intermediate step is a good example of the interconnected
relationship between stack and phb that we aim to cleanup.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220113192952.911188-9-danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:31 +01:00
Daniel Henrique Barboza 98f0833343 ppc/pnv: move nest_regs[] to PnvPHB4
stack->nest_regs[] is used in several XSCOM functions and it's one of
the main culprits of having to deal with stack->phb pointers around the
code.

Sure, we're having to add 2 extra stack->phb pointers to ease
nest_regs[] migration to PnvPHB4. They'll be dealt with shortly.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220113192952.911188-8-danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:31 +01:00
Daniel Henrique Barboza 1293d73521 ppc/pnv: move mmbar0/mmbar1 and friends to PnvPHB4
These 2 MemoryRegions, together with mmio(0|1)_base and mmio(0|1)_size
variables, are used together in the same functions. We're better of
moving them all in a single step.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220113192952.911188-7-danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:31 +01:00
Daniel Henrique Barboza 7edb9514bf ppc/pnv: change pnv_phb4_update_regions() to use PnvPHB4
The function does not rely on stack for anything it does anymore. This
is also one less instance of 'stack->phb' that we need to worry about.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220113192952.911188-6-danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:31 +01:00
Daniel Henrique Barboza db16c02ea7 ppc/pnv: move intbar to PnvPHB4
This MemoryRegion can also be moved in a single step.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220113192952.911188-5-danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:30 +01:00
Daniel Henrique Barboza e0d2379fa7 ppc/pnv: move phbbar to PnvPHB4
This MemoryRegion is simple enough to be moved in a single step.

A 'stack->phb' pointer had to be introduced in pnv_pec_stk_update_map()
because this function isn't ready to be fully converted to use a PnvPHB4
pointer instead. This will be dealt with in the following patches.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220113192952.911188-4-danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:30 +01:00
Daniel Henrique Barboza df46278410 ppc/pnv: move PCI registers to PnvPHB4
Previous patch changed pnv_pec_stk_pci_xscom_read() and
pnv_pec_stk_pci_xscom_write() to use a PnvPHB4 opaque, making it easier
to move both pci_regs[] and the pci_regs_mr MemoryRegion to the PnvHB4
object.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220113192952.911188-3-danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:30 +01:00
Daniel Henrique Barboza 5d4ec10341 ppc/pnv: use PHB4 obj in pnv_pec_stk_pci_xscom_ops
The current relationship between PnvPhb4PecStack and PnvPHB4 objects is
overly complex. Recent work done in pnv_phb4.c and pnv_phb4_pec.c shows
that the stack obj role in the overall design is more of a placeholder for
its 'phb' object, having no atributes that stand on its own. This became
clearer after pnv-phb4 user creatable devices were implemented.

What remains now are a lot of stack->phb and phb->stack pointers
throughout .read and .write callbacks of MemoryRegionOps that are being
initialized in phb4_realize() time. stk_realize() is a no-op if the
machine is being run with -nodefaults.

The first step of trying to decouple the stack and phb relationship is
to move the MemoryRegionOps that belongs to PnvPhb4PecStack to PhbPHB4.
Unfortunately this can't be done  without some preliminary steps to
change the usage of 'stack' and replace it with 'phb' in these
read/write callbacks.

This patch starts this process by using a PnvPHB4 opaque in
pnv_pec_stk_pci_xscom_ops instead of PnvPhb4PecStack.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220113192952.911188-2-danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:30 +01:00
Fabiano Rosas 390a129997 tests/avocado: ppc: Add smoke tests for MPC7400 and MPC7450 families
These tests ensure that our emulation for these cpus is not completely
broken and we can at least run OpenBIOS on them.

$ make check-avocado AVOCADO_TESTS=../tests/avocado/ppc_74xx.py

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20220117144757.782441-1-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:30 +01:00
Cédric Le Goater fe072a9914 target/ppc: Fix 7448 support
The 7448 CPU is an evolution of the PowerPC 7447A and the last of the
G4 family. Change its family to reflect correctly its features. This
fixes Linux boot.

Cc: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220117092555.1616512-1-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:30 +01:00
Cédric Le Goater 328c95fc7d target/ppc: Finish removal of 401/403 CPUs
Commit c8f49e6b93 ("target/ppc: remove 401/403 CPUs") left a few
things behind.

Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20220117091541.1615807-1-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220118104150.1899661-3-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:30 +01:00
Cédric Le Goater 8f91aca7ff target/ppc: Remove last user of .load_state_old
This breaks migration compatibility from (very) old versions of
QEMU. This should not be a problem for the pseries machine for which
migration is only supported on recent QEMUs ( > 2.x). There is no
clear status on what is supported or not for the other machines. Let's
move forward and remove the .load_state_old handler.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20220118104150.1899661-2-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:30 +01:00
Leonardo Garcia 8e12c012a7 Link new ppc-spapr-uv-hcalls.rst to pseries.rst.
Signed-off-by: Leonardo Garcia <lagarcia@br.ibm.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <a24d2c260442e44aa99d4c18b1717f2f4a73529a.1642446876.git.lagarcia@br.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:30 +01:00
Leonardo Garcia dedc5d79da Rename ppc-spapr-uv-hcalls.txt to ppc-spapr-uv-hcalls.rst.
Signed-off-by: Leonardo Garcia <lagarcia@br.ibm.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <ea1554e3a02e093eaa64d1260faf01d525c9ecdc.1642446876.git.lagarcia@br.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:30 +01:00
Leonardo Garcia 2084b44d7a rSTify ppc-spapr-uv-hcalls.txt.
Signed-off-by: Leonardo Garcia <lagarcia@br.ibm.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <243a714d3861f7539d29b02a899ffc376757d668.1642446876.git.lagarcia@br.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:30 +01:00
Leonardo Garcia 22beb38b78 Link new ppc-spapr-hotplug.rst file to pseries.rst.
Signed-off-by: Leonardo Garcia <lagarcia@br.ibm.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <e54aad58e3cfbd96647430d33cdb59fd87d199b0.1641995058.git.lagarcia@br.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:30 +01:00
Leonardo Garcia 55ff468f78 docs: Rename ppc-spapr-hotplug.txt to ppc-spapr-hotplug.rst.
Signed-off-by: Leonardo Garcia <lagarcia@br.ibm.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <1f5860217273f272fddadc68b5d205b4090f6b04.1641995058.git.lagarcia@br.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:30 +01:00
Leonardo Garcia 8915106c69 docs: rSTify ppc-spapr-hotplug.txt.
While working on this file, also removed and unused reference in the end of the file. The reference in the text was removed by commit 9f992cca93 (spapr: update spapr hotplug documentation), but the link in the end of the document was not removed then.

Signed-off-by: Leonardo Garcia <lagarcia@br.ibm.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <50ed30232e0e6eafb580c17adec3fba17b873014.1641995058.git.lagarcia@br.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-01-18 12:56:30 +01:00
Alex Bennée 9d696cd504 docs/devel: add some clarifying text for aliases
We do mention the limitation of single parenthood for
memory_region_add_subregion but lets also make it clear how aliases
help solve that conundrum.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220110175104.2908956-7-alex.bennee@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-01-18 12:56:29 +01:00
Philippe Mathieu-Daudé f02b664aad hw/dma: Let dma_buf_read() / dma_buf_write() propagate MemTxResult
Since commit 292e13142d, dma_buf_rw() returns a MemTxResult type.
Do not discard it, return it to the caller. Pass the previously
returned value (the QEMUSGList residual size, which was rarely used)
as an optional argument.

With this new API, SCSIRequest::residual might now be accessed via
a pointer. Since the size_t type does not have the same size on
32 and 64-bit host architectures, convert it to a uint64_t, which
is big enough to hold the residual size, and the type is constant
on both 32/64-bit hosts.

Update the few dma_buf_read() / dma_buf_write() callers to the new
API.

Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220117125130.131828-1-f4bug@amsat.org>
2022-01-18 12:56:29 +01:00
Philippe Mathieu-Daudé bfa30f3903 hw/dma: Use dma_addr_t type definition when relevant
Update the obvious places where dma_addr_t should be used
(instead of uint64_t, hwaddr, size_t, int32_t types).

This allows to have &dma_addr_t type portable on 32/64-bit
hosts.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220111184309.28637-11-f4bug@amsat.org>
2022-01-18 12:56:29 +01:00
Philippe Mathieu-Daudé 026644cf5f hw/dma: Move ScatterGatherEntry / QEMUSGList declarations around
In the next commit we will use the dma_addr_t type in the QEMUSGList
structure. Since currently dma_addr_t is defined after QEMUSGList,
move the declarations to have dma_addr_t defined first. This is a
pure code-movement patch.

Suggested-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220111184309.28637-10-f4bug@amsat.org>
2022-01-18 12:56:29 +01:00
Philippe Mathieu-Daudé 60791a2c27 hw/dma: Fix format string issues using dma_addr_t
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220111184309.28637-10-f4bug@amsat.org>
2022-01-18 12:56:29 +01:00
Philippe Mathieu-Daudé 5f412602de hw/scsi: Rename SCSIRequest::resid as 'residual'
The 'resid' field is slightly confusing and could be
interpreted as some ID. Rename it as 'residual' which
is clearer to review. No logical change.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220111184309.28637-8-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-01-18 12:56:29 +01:00
Philippe Mathieu-Daudé ce0a798285 hw/rdma/rdma_utils: Rename rdma_pci_dma_map 'len' argument
Various APIs use 'pval' naming for 'pointer to val'.
rdma_pci_dma_map() uses 'plen' for 'PCI length', but since
'PCI' is already explicit in the function name, simplify
and rename the argument 'len'. No logical change.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Yuval Shaia <yuval.shaia.ml@gmail.com>
Tested-by: Yuval Shaia <yuval.shaia.ml@gmail.com>
Message-Id: <20220111184309.28637-7-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-01-18 12:56:07 +01:00
Warner Losh bfadf13f63 linux-user: Remove MAX_SIGQUEUE_SIZE
It's been unused for 7 years since 907f5fddaa when linux-user stopped
queueing any signals.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220116204423.16133-2-imp@bsdimp.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-18 12:44:44 +01:00
Peter Maydell 337e88d890 linux-user: Return void from queue_signal()
The linux-user queue_signal() function always returns 1, and none of
its callers check the return value.  Give it a void return type
instead.

The return value is a leftover from the old pre-2016 linux-user
signal handling code, which really did have a queue of signals and so
might return a failure indication if too many signals were queued at
once.  The current design avoids having to ever have more than one
signal queued via queue_signal() at once, so it can never fail.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220114153732.3767229-4-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-18 12:42:28 +01:00
Peter Maydell b5f9536643 linux-user: Rename user_force_sig tracepoint to match function name
In commit c599d4d6d6 in 2016 we renamed the old force_sig()
function to dump_core_and_abort(), but we forgot to rename the
associated tracepoint.  Rename the tracepoint to to match the
function it's called from.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220114153732.3767229-3-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-18 12:41:42 +01:00
Peter Maydell 5b602fc4ed linux-user: Fix comment typo in arm cpu_loop code
Fix a typo in a comment in the arm cpu_loop code.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20220114182535.3804783-1-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-18 12:37:59 +01:00
Bernhard Beschow d4fae97d8f softmmu: Provide a clue as to why device tree loading failed
fdt_open_into() obligingly returns an error code in case the operation
failed. So be obliging as well and use it in the error message.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220116114649.40859-1-shentey@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-18 12:33:46 +01:00
Philippe Mathieu-Daudé 6d4c8af321 tests: Fix typo in check-help output
Fix typo in 'make check-help' output.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220111175528.22294-1-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-18 12:32:16 +01:00
Peter Maydell 5df69ab895 qdev-core.h: Fix wrongly named reference to TYPE_SPLIT_IRQ
Fix a comment in qdev-core.h where we incorrectly referred
to TYPE_IRQ_SPLIT when we meant TYPE_SPLIT_IRQ.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20220111172655.3546766-1-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-18 12:32:16 +01:00
Philippe Mathieu-Daudé 2a0c513669 hw/scsi/megasas: Simplify using the ldst API
This code is easier to review using the load/store API.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211218111912.1499377-1-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-18 12:32:16 +01:00
Philippe Mathieu-Daudé 6446a79e10 hw/timer/etraxfs_timer: Add vmstate for ETRAX timers
Add the vmstate for the ETRAX timers.
This is in theory a migration compatibility break
for the 'AXIS devboard 88' CRIS machine.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211106105623.510868-1-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-18 12:32:16 +01:00
Philippe Mathieu-Daudé fd5e451edb hw/dma: Remove CONFIG_USER_ONLY check
DMA API should not be included in user-mode emulation.
If so, build should fail. Remove the CONFIG_USER_ONLY check.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220111184309.28637-6-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-01-18 10:45:35 +01:00
Philippe Mathieu-Daudé 1efc6b319c hw/pci: Document pci_dma_map()
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220111184309.28637-5-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-01-18 10:45:35 +01:00
Philippe Mathieu-Daudé e0431aafc4 hw/pci: Restrict pci-bus stub to sysemu
Neither tools nor user-mode emulation require the PCI bus stub.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220111184309.28637-4-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-01-18 10:45:35 +01:00
Philippe Mathieu-Daudé 33cda58f00 hw/nvram: Restrict fw_cfg QOM interface to sysemu and tools
fw_cfg QOM interface is required by system emulation and
qemu-storage-daemon. User-mode emulation doesn't need it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220111184309.28637-3-f4bug@amsat.org>
2022-01-18 10:45:35 +01:00
Philippe Mathieu-Daudé e3ae2bbfca stubs: Restrict fw_cfg to system emulation
fw_cfg_arch_key_name() stub is only required for sysemu.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220111184309.28637-2-f4bug@amsat.org>
2022-01-18 10:45:35 +01:00
Peter Xu 7b0538ed3a memory: Fix incorrect calls of log_global_start/stop
We should only call the log_global_start/stop when the global dirty track
bitmask changes from zero<->non-zero.

No real issue reported for this yet probably because no immediate user to
enable both dirty rate measurement and migration at the same time.  However
it'll be good to be prepared for it.

Fixes: 63b41db4bc ("memory: make global_dirty_tracking a bitmask")
Cc: qemu-stable@nongnu.org
Cc: Hyman Huang <huangy81@chinatelecom.cn>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Juan Quintela <quintela@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20211130080028.6474-1-peterx@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-01-18 10:45:35 +01:00
David Hildenbrand 455faf03df memory: Update description of memory_region_is_mapped()
Let's update the documentation, making it clearer what the semantics
of memory_region_is_mapped() actually are.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20211102164317.45658-4-david@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-01-18 10:45:35 +01:00
David Hildenbrand 5ead62185d memory: Make memory_region_is_mapped() succeed when mapped via an alias
memory_region_is_mapped() currently does not return "true" when a memory
region is mapped via an alias.

Assuming we have:
    alias (A0) -> alias (A1) -> region (R0)
Mapping A0 would currently only make memory_region_is_mapped() succeed
on A0, but not on A1 and R0.

Let's fix that by adding a "mapped_via_alias" counter to memory regions and
updating it accordingly when an alias gets (un)mapped.

I am not aware of actual issues, this is rather a cleanup to make it
consistent.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20211102164317.45658-3-david@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-01-18 10:45:35 +01:00
David Hildenbrand eef3a7abff machine: Use host_memory_backend_is_mapped() in machine_consume_memdev()
memory_region_is_mapped() is the wrong check, we actually want to check
whether the backend is already marked mapped.

For example, memory regions mapped via an alias, such as NVDIMMs,
currently don't make memory_region_is_mapped() return "true". As the
machine is initialized before any memory devices (and thereby before
NVDIMMs are initialized), this isn't a fix but merely a cleanup.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20211102164317.45658-2-david@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-01-18 10:45:35 +01:00
Philippe Mathieu-Daudé 7bdbf99aa2 memory: Have 'info mtree' remove duplicated Address Space information
Per Peter Maydell [*]:

  'info mtree' monitor command was designed on the assumption that
  there's really only one or two interesting address spaces, and
  with more recent developments that's just not the case any more.

Similarly about how the FlatView are sorted using a GHashTable,
sort the AddressSpace objects to remove the duplications (AS
using the same root MemoryRegion).

This drastically reduces the output of 'info mtree' on some boards.

Before:

  $ (echo info mtree; echo q) \
    | qemu-system-aarch64 -S -monitor stdio -M raspi3b \
    | wc -l
  423

After:

  $ (echo info mtree; echo q) \
    | qemu-system-aarch64 -S -monitor stdio -M raspi3b \
    | wc -l
  106

  (qemu) info mtree
  address-space: I/O
    0000000000000000-000000000000ffff (prio 0, i/o): io

  address-space: cpu-memory-0
  address-space: cpu-memory-1
  address-space: cpu-memory-2
  address-space: cpu-memory-3
  address-space: cpu-secure-memory-0
  address-space: cpu-secure-memory-1
  address-space: cpu-secure-memory-2
  address-space: cpu-secure-memory-3
  address-space: memory
    0000000000000000-ffffffffffffffff (prio 0, i/o): system
      0000000000000000-000000003fffffff (prio 0, ram): ram
      000000003f000000-000000003fffffff (prio 1, i/o): bcm2835-peripherals
        000000003f003000-000000003f00301f (prio 0, i/o): bcm2835-sys-timer
        000000003f004000-000000003f004fff (prio -1000, i/o): bcm2835-txp
        000000003f006000-000000003f006fff (prio 0, i/o): mphi
        000000003f007000-000000003f007fff (prio 0, i/o): bcm2835-dma
        000000003f00b200-000000003f00b3ff (prio 0, i/o): bcm2835-ic
        000000003f00b400-000000003f00b43f (prio -1000, i/o): bcm2835-sp804
        000000003f00b800-000000003f00bbff (prio 0, i/o): bcm2835-mbox
        000000003f100000-000000003f1001ff (prio 0, i/o): bcm2835-powermgt
        000000003f101000-000000003f102fff (prio 0, i/o): bcm2835-cprman
        000000003f104000-000000003f10400f (prio 0, i/o): bcm2835-rng
        000000003f200000-000000003f200fff (prio 0, i/o): bcm2835_gpio
        000000003f201000-000000003f201fff (prio 0, i/o): pl011
        000000003f202000-000000003f202fff (prio 0, i/o): bcm2835-sdhost
        000000003f203000-000000003f2030ff (prio -1000, i/o): bcm2835-i2s
        000000003f204000-000000003f20401f (prio -1000, i/o): bcm2835-spi0
        000000003f205000-000000003f20501f (prio -1000, i/o): bcm2835-i2c0
        000000003f20f000-000000003f20f07f (prio -1000, i/o): bcm2835-otp
        000000003f212000-000000003f212007 (prio 0, i/o): bcm2835-thermal
        000000003f214000-000000003f2140ff (prio -1000, i/o): bcm2835-spis
        000000003f215000-000000003f2150ff (prio 0, i/o): bcm2835-aux
        000000003f300000-000000003f3000ff (prio 0, i/o): sdhci
        000000003f600000-000000003f6000ff (prio -1000, i/o): bcm2835-smi
        000000003f804000-000000003f80401f (prio -1000, i/o): bcm2835-i2c1
        000000003f805000-000000003f80501f (prio -1000, i/o): bcm2835-i2c2
        000000003f900000-000000003f907fff (prio -1000, i/o): bcm2835-dbus
        000000003f910000-000000003f917fff (prio -1000, i/o): bcm2835-ave0
        000000003f980000-000000003f990fff (prio 0, i/o): dwc2
          000000003f980000-000000003f980fff (prio 0, i/o): dwc2-io
          000000003f981000-000000003f990fff (prio 0, i/o): dwc2-fifo
        000000003fc00000-000000003fc00fff (prio -1000, i/o): bcm2835-v3d
        000000003fe00000-000000003fe000ff (prio -1000, i/o): bcm2835-sdramc
        000000003fe05000-000000003fe050ff (prio 0, i/o): bcm2835-dma-chan15
      0000000040000000-00000000400000ff (prio 0, i/o): bcm2836-control

  address-space: bcm2835-dma-memory
  address-space: bcm2835-fb-memory
  address-space: bcm2835-property-memory
  address-space: dwc2
    0000000000000000-00000000ffffffff (prio 0, i/o): bcm2835-gpu
      0000000000000000-000000003fffffff (prio 0, ram): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
      0000000040000000-000000007fffffff (prio 0, ram): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
      000000007e000000-000000007effffff (prio 1, i/o): alias bcm2835-peripherals @bcm2835-peripherals 0000000000000000-0000000000ffffff
      0000000080000000-00000000bfffffff (prio 0, ram): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff
      00000000c0000000-00000000ffffffff (prio 0, ram): alias bcm2835-gpu-ram-alias[*] @ram 0000000000000000-000000003fffffff

  address-space: bcm2835-mbox-memory
    0000000000000000-000000000000008f (prio 0, i/o): bcm2835-mbox
      0000000000000010-000000000000001f (prio 0, i/o): bcm2835-fb
      0000000000000080-000000000000008f (prio 0, i/o): bcm2835-property

  memory-region: ram
    0000000000000000-000000003fffffff (prio 0, ram): ram

  memory-region: bcm2835-peripherals
    000000003f000000-000000003fffffff (prio 1, i/o): bcm2835-peripherals
      000000003f003000-000000003f00301f (prio 0, i/o): bcm2835-sys-timer
      000000003f004000-000000003f004fff (prio -1000, i/o): bcm2835-txp
      000000003f006000-000000003f006fff (prio 0, i/o): mphi
      000000003f007000-000000003f007fff (prio 0, i/o): bcm2835-dma
      000000003f00b200-000000003f00b3ff (prio 0, i/o): bcm2835-ic
      000000003f00b400-000000003f00b43f (prio -1000, i/o): bcm2835-sp804
      000000003f00b800-000000003f00bbff (prio 0, i/o): bcm2835-mbox
      000000003f100000-000000003f1001ff (prio 0, i/o): bcm2835-powermgt
      000000003f101000-000000003f102fff (prio 0, i/o): bcm2835-cprman
      000000003f104000-000000003f10400f (prio 0, i/o): bcm2835-rng
      000000003f200000-000000003f200fff (prio 0, i/o): bcm2835_gpio
      000000003f201000-000000003f201fff (prio 0, i/o): pl011
      000000003f202000-000000003f202fff (prio 0, i/o): bcm2835-sdhost
      000000003f203000-000000003f2030ff (prio -1000, i/o): bcm2835-i2s
      000000003f204000-000000003f20401f (prio -1000, i/o): bcm2835-spi0
      000000003f205000-000000003f20501f (prio -1000, i/o): bcm2835-i2c0
      000000003f20f000-000000003f20f07f (prio -1000, i/o): bcm2835-otp
      000000003f212000-000000003f212007 (prio 0, i/o): bcm2835-thermal
      000000003f214000-000000003f2140ff (prio -1000, i/o): bcm2835-spis
      000000003f215000-000000003f2150ff (prio 0, i/o): bcm2835-aux
      000000003f300000-000000003f3000ff (prio 0, i/o): sdhci
      000000003f600000-000000003f6000ff (prio -1000, i/o): bcm2835-smi
      000000003f804000-000000003f80401f (prio -1000, i/o): bcm2835-i2c1
      000000003f805000-000000003f80501f (prio -1000, i/o): bcm2835-i2c2
      000000003f900000-000000003f907fff (prio -1000, i/o): bcm2835-dbus
      000000003f910000-000000003f917fff (prio -1000, i/o): bcm2835-ave0
      000000003f980000-000000003f990fff (prio 0, i/o): dwc2
        000000003f980000-000000003f980fff (prio 0, i/o): dwc2-io
        000000003f981000-000000003f990fff (prio 0, i/o): dwc2-fifo
      000000003fc00000-000000003fc00fff (prio -1000, i/o): bcm2835-v3d
      000000003fe00000-000000003fe000ff (prio -1000, i/o): bcm2835-sdramc
      000000003fe05000-000000003fe050ff (prio 0, i/o): bcm2835-dma-chan15

  (qemu) q

[*] https://www.mail-archive.com/qemu-devel@nongnu.org/msg829821.html

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210904231101.1071929-2-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-01-18 10:45:35 +01:00
Philippe Mathieu-Daudé 670c0780e7 memory: Split mtree_info() as mtree_info_flatview() + mtree_info_as()
While mtree_info() handles both ASes and flatviews cases,
the two cases share basically no code. Split mtree_info()
as mtree_info_flatview() + mtree_info_as() to simplify.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210904231101.1071929-2-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-01-18 10:45:35 +01:00
Philippe Mathieu-Daudé 1a59bdba4b memory: Directly dispatch alias accesses on origin memory region
Since commit 2cdfcf272d ("memory: assign MemoryRegionOps to all
regions"), all newly created regions are assigned with
unassigned_mem_ops (which might be then overwritten).

When using aliased container regions, and there is no region mapped
at address 0 in the container, the memory_region_dispatch_read()
and memory_region_dispatch_write() calls incorrectly return the
container unassigned_mem_ops, because the alias offset is not used.

Consider the following setup:

    +--------------------+ < - - - - - - - - - - - +
    |     Container      |  mr
    |  (unassigned_mem)  |                         |
    |                    |
    |                    |                         |
    |                    |  alias_offset
    +                    + <- - - - - - +----------+---------+
    | +----------------+ |              |                    |
    | |  MemoryRegion0 | |              |                    |
    | +----------------+ |              |       Alias        |  addr1
    | |  MemoryRegion1 | | <~ ~  ~  ~ ~ |                    | <~~~~~~
    | +----------------+ |              |                    |
    |                    |              +--------------------+
    |                    |
    |                    |
    |                    |
    |                    |
    | +----------------+ |
    | |  MemoryRegionX | |
    | +----------------+ |
    | |  MemoryRegionY | |
    | +----------------+ |
    | |  MemoryRegionZ | |
    | +----------------+ |
    +--------------------+

The memory_region_init_alias() flow is:

  memory_region_init_alias()
  -> memory_region_init()
     -> object_initialize(TYPE_MEMORY_REGION)
        -> memory_region_initfn()
           -> mr->ops = &unassigned_mem_ops;

Later when accessing offset=addr1 via the alias, we expect to hit
MemoryRegion1. The memory_region_dispatch_read() flow is:

  memory_region_dispatch_read(addr1)
  -> memory_region_access_valid(mr)   <- addr1 offset is ignored
     -> mr->ops->valid.accepts()
        -> unassigned_mem_accepts()
        <- false
     <- false
   <- MEMTX_DECODE_ERROR

The caller gets a MEMTX_DECODE_ERROR while the access is OK.

Fix by dispatching aliases recursively, accessing its origin region
after adding the alias offset.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210418055708.820980-1-f4bug@amsat.org>
2022-01-18 10:45:02 +01:00
Eric Farman 6a6d3dfd6e MAINTAINERS: Add myself to s390 I/O areas
After the recent restructuring, I'd like to volunteer to help
in some of the s390 I/O areas.

Built on "[PATCH RFC v2] MAINTAINERS: split out s390x sections"

Signed-off-by: Eric Farman <farman@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Message-Id: <20220112164044.2210508-1-farman@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-01-18 10:13:53 +01:00
Cornelia Huck 56e3483402 MAINTAINERS: split out s390x sections
Split out some more specialized devices etc., so that we can build
smarter lists of people to be put on cc: in the future.

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Acked-by: Eric Farman <farman@linux.ibm.com>
Message-Id: <20211222105548.356852-1-cohuck@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-01-18 10:12:11 +01:00
Ilya Leoshkevich f7cff0738d tests/tcg/s390x: Test shift instructions
Add a test for each shift instruction in order to to prevent
regressions.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220112165016.226996-6-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-01-17 08:36:33 +01:00