It happens that there are functions to calculate the worst possible
compression size for a packet. Use them.
Suggested-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
We always need to call it when we find a zero page, so put it in a
single place.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Remove the mask in the call to ram_release_pages(). Nothing else does
it, and if the offset has that bits set, we have a lot of trouble.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Remove the pages argument. And s/pages/page/
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
---
- Use 1LL instead of casts (philmd)
- Change the whole 1ULL for TARGET_PAGE_SIZE
We only need last_stage in two places and we are passing it all
around. Just add a field to RAMState that passes it.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
---
Repeat subject (philmd suggestion)
So printing it as %d is wrong. Notice that for the channel id, that
is an uint8_t, but I changed it anyways for consistency.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
The exception caused by an SVC instruction may be taken to AArch32
Hyp mode for two reasons:
* HCR.TGE indicates that exceptions from EL0 should trap to EL2
* we were already in Hyp mode
The entrypoint in the vector table to be used differs in these two
cases: for an exception routed to Hyp mode from EL0, we enter at the
common 0x14 "hyp trap" entrypoint. For SVC from Hyp mode to Hyp
mode, we enter at the 0x08 (svc/hvc trap) entrypoint.
In the v8A Arm ARM pseudocode this is done in AArch32.TakeSVCException.
QEMU incorrectly routed both of these exceptions to the 0x14
entrypoint. Correct the entrypoint for SVC from Hyp to Hyp by making
use of the existing logic which handles "normal entrypoint for
Hyp-to-Hyp, otherwise 0x14" for traps like UNDEF and data/prefetch
aborts (reproduced here since it's outside the visible context
in the diff for this commit):
if (arm_current_el(env) != 2 && addr < 0x14) {
addr = 0x14;
}
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220117131953.3936137-1-peter.maydell@linaro.org
Address should be 0x1E631000 and not 0x1E641000 as initially introduced.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/838
Fixes: f25c0ae107 ("aspeed/soc: Add AST2600 support")
Suggested-by: Troy Lee <troy_lee@aspeedtech.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20220126083520.4135713-1-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Implement the ITS MOVI command. This command specifies a (physical) LPI
by DeviceID and EventID and provides a new ICID for it. The ITS must
find the interrupt translation table entry for the LPI, which will
tell it the old ICID. It then moves the pending state of the LPI from
the old redistributor to the new one and updates the ICID field in
the translation table entry.
This is another GICv3 ITS command that we forgot to implement. Linux
does use this one, but only if the guest powers off one of its CPUs.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220122182444.724087-15-peter.maydell@linaro.org
Implement the ITS MOVALL command, which takes all the pending
interrupts on a source redistributor and makes the not-pending on
that source redistributor and pending on a destination redistributor.
This is a GICv3 ITS command which we forgot to implement. (It is
not used by Linux guests.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220122182444.724087-14-peter.maydell@linaro.org
Currently when we fill in a TableDesc based on the value the guest
has written to the GITS_BASER<n> register, we calculate both:
* num_entries : the number of entries in the table, constrained
by the amount of memory the guest has given it
* num_ids : the number of IDs we support for this table,
constrained by the implementation choices and the architecture
(eg DeviceIDs are 16 bits, so num_ids is 1 << 16)
When validating ITS commands, however, we check only num_ids,
thus allowing a broken guest to specify table entries that
index off the end of it. This will only corrupt guest memory,
but the ITS is supposed to reject such commands as invalid.
Instead of calculating both num_entries and num_ids, set
num_entries to the minimum of the two limits, and check that.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220122182444.724087-13-peter.maydell@linaro.org
The ITS has a bank of 8 GITS_BASER<n> registers, which allow the
guest to specify the base address of various data tables. Each
register has a read-only type field indicating which table it is for
and a read-write field where the guest can write in the base address
(among other things). We currently allow the guest to write the
writeable fields for all eight registers, even if the type field is 0
indicating "Unimplemented". This means the guest can provoke QEMU
into asserting by writing an address into one of these unimplemented
base registers, which bypasses the "if (!value) continue" check in
extract_table_params() and lets us hit the assertion that the type
field is one of the permitted table types.
Prevent the assertion by not allowing the guest to write to the
unimplemented base registers. This means their value will remain 0
and extract_table_params() will ignore them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220122182444.724087-12-peter.maydell@linaro.org
The MemoryRegionOps gicv3_its_translation_ops currently provides only
a .write_with_attrs function, because the only register in this
region is the write-only GITS_TRANSLATER. However, if you don't
provide a read function and the guest tries reading from this memory
region, QEMU will crash because
memory_region_read_with_attrs_accessor() calls a NULL pointer.
Add a read function which always returns 0, to cover both bogus
attempts to read GITS_TRANSLATER and also reads from the rest of the
region, which is documented to be reserved, RES0.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220122182444.724087-11-peter.maydell@linaro.org
The GICR_CTLR.CES bit is a read-only bit which is set to 1 to indicate
that the GICR_CTLR.EnableLPIs bit can be written to 0 to disable
LPIs (as opposed to allowing LPIs to be enabled but not subsequently
disabled). Our implementation permits this, so advertise it
by setting CES to 1.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220122182444.724087-10-peter.maydell@linaro.org
The ITS-related parts of the redistributor code make some checks for
whether registers like GICR_PROPBASER and GICR_PENDBASER are zero.
There is no requirement in the specification for treating zeroes in
these address registers specially -- they contain guest physical
addresses and it is entirely valid (if unusual) for the guest to
choose to put the tables they address at guest physical address zero.
We use these values only to calculate guest addresses, and attempts
by the guest to use a bad address will be handled by the
address_space_* functions which we use to do the loads and stores.
Remove the unnecessary checks.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220122182444.724087-9-peter.maydell@linaro.org
The list of #defines for the ITS command packet numbers is neither
in alphabetical nor numeric order. Sort it into numeric order.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220122182444.724087-8-peter.maydell@linaro.org
The GICD_CTLR distributor register has enable bits which control
whether the different interrupt groups (Group 0, Non-secure Group 1
and Secure Group 1) are forwarded to the CPU. We get this right for
traditional interrupts, but forgot to account for it when adding
LPIs. LPIs are always Group 1 NS and if the EnableGrp1NS bit is not
set we must not forward them to the CPU.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220122182444.724087-7-peter.maydell@linaro.org
The ITS specification says that when the guest writes to GITS_CBASER
this causes GITS_CREADR to be cleared. However it does not have an
equivalent clause for GITS_CWRITER. (This is because GITS_CREADR is
read-only, but GITS_CWRITER is writable and the guest can initialize
it.) Remove the code that clears GITS_CWRITER on GITS_CBASER writes.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220122182444.724087-6-peter.maydell@linaro.org
The current ITS code clears GITS_CREADR when GITS_CTLR.ENABLED is set.
This is not correct -- guest code can validly clear ENABLED and then
set it again and expect the ITS to continue processing where it left
off. Remove the erroneous assignment.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220122182444.724087-5-peter.maydell@linaro.org
In our implementation, all ITSes connected to a GIC share a single
AddressSpace, which we keep in the GICv3State::dma_as field and
initialized based on the GIC's 'sysmem' property. The right place
to set it up by calling address_space_init() is therefore in the
GIC's realize method, not the ITS's realize.
This fixes a theoretical bug where QEMU hangs on startup if the board
model creates two ITSes connected to the same GIC -- we would call
address_space_init() twice on the same AddressSpace*, which creates
an infinite loop in the QTAILQ that softmmu/memory.c uses to store
its list of AddressSpaces and causes any subsequent attempt to
iterate through that list to loop forever. There aren't any board
models like that in the tree at the moment, though.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220122182444.724087-4-peter.maydell@linaro.org
The ITS currently has no tracepoints; add a minimal set
that allows basic monitoring of guest register accesses and
reading of commands from the command queue.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220122182444.724087-3-peter.maydell@linaro.org
In an SMP system it can be unclear which CPU is taking an exception;
add the CPU index (which is the same value used in the TCG 'Trace
%d:' logging) to the "Taking exception" log line to clarify it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220122182444.724087-2-peter.maydell@linaro.org
If you don't know it, it's hard to figure out the difference between
the linux-headers folder and the include/standard-headers folder.
So let's add a short explanation to clarify the difference.
Suggested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
List myself as maintainer for the Xilinx Versal OSPI controller.
Signed-off-by: Francisco Iglesias <francisco.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20220121161141.14389-11-francisco.iglesias@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Connect Micron Xccela mt35xu01g flashes to the OSPI flash memory
controller.
Signed-off-by: Francisco Iglesias <francisco.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20220121161141.14389-10-francisco.iglesias@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add support for Micron Xccela flash mt35xu01g.
Signed-off-by: Francisco Iglesias <francisco.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20220121161141.14389-9-francisco.iglesias@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Connect the OSPI flash memory controller model (including the source and
destination DMA).
Signed-off-by: Francisco Iglesias <francisco.iglesias@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20220121161141.14389-8-francisco.iglesias@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add a model of Xilinx Versal's OSPI flash memory controller.
Signed-off-by: Francisco Iglesias <francisco.iglesias@xilinx.com>
Reviewed-by: Luc Michel <luc@lmichel.fr>
Message-id: 20220121161141.14389-7-francisco.iglesias@xilinx.com
[PMM: fixed indent]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
An option on real hardware when embedding a DMA engine into a peripheral
is to make the peripheral control the engine through a custom DMA control
(hardware) interface between the two. Software drivers in this scenario
configure and trigger DMA operations through the controlling peripheral's
register API (for example, writing a specific bit in a register could
propagate down to a transfer start signal on the DMA control interface).
At the same time the status, results and interrupts for the transfer might
still be intended to be read and caught through the DMA engine's register
API (and signals).
This patch adds a class 'read' method for allowing to start read transfers
from peripherals embedding and controlling the Xilinx CSU DMA engine as in
above scenario.
Signed-off-by: Francisco Iglesias <francisco.iglesias@xilinx.com>
Reviewed-by: Luc Michel <luc@lmichel.fr>
Message-id: 20220121161141.14389-6-francisco.iglesias@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add in the missing includes in the header for being able to build the DMA
model when reusing it.
Signed-off-by: Francisco Iglesias <francisco.iglesias@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Luc Michel <luc@lmichel.fr>
Message-id: 20220121161141.14389-5-francisco.iglesias@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add an orgate and 'or' the interrupts from the BBRAM and RTC models.
Signed-off-by: Francisco Iglesias <francisco.iglesias@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Luc Michel <luc@lmichel.fr>
Message-id: 20220121161141.14389-3-francisco.iglesias@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add a model of Versal's PMC SLCR (system-level control registers).
Signed-off-by: Francisco Iglesias <francisco.iglesias@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Luc Michel <luc@lmichel.fr>
Message-id: 20220121161141.14389-2-francisco.iglesias@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
softmmu/rtc.c defines two public functions: qemu_get_timedate() and
qemu_timedate_diff(). Currently we keep the prototypes for these in
qemu-common.h, but most files don't need them. Move them to their
own header, a new include/sysemu/rtc.h.
Since the C files using these two functions did not need to include
qemu-common.h for any other reason, we can remove those include lines
when we add the include of the new rtc.h.
The license for the .h file follows that of the softmmu/rtc.c
where both the functions are defined.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
The exynos4210_uart_post_load() function assumes that it is passed
the Exynos4210UartState, but it has been attached to the
VMStateDescription for the Exynos4210UartFIFO type. The result is a
SIGSEGV when attempting to load VM state for any machine type
including this device.
Fix the bug by attaching the post-load function to the VMSD for the
Exynos4210UartState. This is the logical place for it, because the
actions it does relate to the entire UART state, not just the FIFO.
Thanks to the bug reporter @TrungNguyen1909 for the clear bug
description and the suggested fix.
Fixes: c9d3396d80
("hw/char/exynos4210_uart: Implement post_load function")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/638
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20220120151648.433736-1-peter.maydell@linaro.org
In commit d5093d9615 we added a VMStateDescription to
the TYPE_ARMV7M object, to handle migration of its Clocks.
However a cut-and-paste error meant we used the wrong struct
name in the VMSTATE_CLOCK() macro arguments. The result was
that attempting a 'savevm' might result in an assertion
failure.
Cc: qemu-stable@nongnu.org
Buglink: https://gitlab.com/qemu-project/qemu/-/issues/803
Fixes: d5093d9615
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Ani Sinha <ani@anisinha.ca>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20220120151609.433555-1-peter.maydell@linaro.org
It's a new year; update the copyright strings for our
help/version/about information and for our documentation.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20220120124713.288303-1-peter.maydell@linaro.org
* "meson test" switch for iotests
* deprecation of old SGX QAPI
* unexport InterruptStatsProviderClass-related functions
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Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging
* configure and meson fixes
* "meson test" switch for iotests
* deprecation of old SGX QAPI
* unexport InterruptStatsProviderClass-related functions
# gpg: Signature made Fri 28 Jan 2022 10:13:36 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:
configure: fix parameter expansion of --cross-cc-cflags options
qapi: Cleanup SGX related comments and restore @section-size
check-block: replace -makecheck with TAP output
qemu-iotests: require at least an argument to check-block.sh
build: make check-block a meson test
scripts/mtest2make: add support for SPEED=thorough
check-block.sh: passthrough -jN flag of make to -j N flag of check
meson: Use find_program() to resolve the entitlement.sh script
exec/cpu: Make host pages variables / macros 'target agnostic'
meson.build: Use a function from libfdt 1.5.1 for the library check
intc: Unexport InterruptStatsProviderClass-related functions
docker: add msitools to Fedora/mingw cross
build-sys: fix undefined ARCH error
build-sys: fix a meson deprecation warning
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The 74xx does not have alternate/hypervisor Save and Restore
Registers, so we can set SRR0 and SRR1 directly.
Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220127201116.1154733-9-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
The whole power saving states logic seems to be dependent on HV mode,
which don't exist for 74xx so I'm removing it all and leaving the
abort message.
Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220127201116.1154733-8-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Remove the BookE code and add a comment explaining why we need to keep
hypercall support even though this CPU does not have a hypervisor
mode.
Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220127201116.1154733-7-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
The 74xx don't have MSR_HV so all the LPES0 logic can be removed.
Also remove the BookE IRQ code.
Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220127201116.1154733-5-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
The 74xx don't have an MSR_HV.
Also remove 40x and BookE code.
Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220127201116.1154733-4-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Differences from the generic powerpc_excp code:
- Not BookE, so some MSR bits are cleared at interrupt dispatch;
- No MSR_HV;
- No power saving states;
- No Hypervisor Emulation Assistance;
- Not 64 bits;
- No System call vectored;
- No Alternate Interrupt Location.
Exceptions used:
POWERPC_EXCP_ALIGN
POWERPC_EXCP_DECR
POWERPC_EXCP_DSI
POWERPC_EXCP_EXTERNAL
POWERPC_EXCP_FPU
POWERPC_EXCP_IABR
POWERPC_EXCP_ISI
POWERPC_EXCP_MCHECK
POWERPC_EXCP_PERFM
POWERPC_EXCP_PROGRAM
POWERPC_EXCP_RESET
POWERPC_EXCP_SMI
POWERPC_EXCP_SYSCALL
POWERPC_EXCP_THERM
POWERPC_EXCP_TRACE
POWERPC_EXCP_VPU
POWERPC_EXCP_VPUA
Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220127201116.1154733-3-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
