We incorporate %asi into tb->flags so that we may generate
inline code for the many ASIs for which it is easy to do so.
Setting %asi is common for e.g. memcpy and memset performing
block copy and clear, so it is worth noticing this case.
We must end the TB but do not need to return to the main loop.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230628071202.230991-9-richard.henderson@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
After the register window unwind, this is for a plain indirect
branch with no further side effects.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230628071202.230991-8-richard.henderson@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
This is for a plain indirect branch with no other side effects.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230628071202.230991-7-richard.henderson@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
When resolving JUMP_PC, we know this is for a plain branch
with no other side effects.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230628071202.230991-6-richard.henderson@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Create a new artificial "next pc" which also indicates
that nothing has changed within the cpu state which
requires returning to the main loop.
Pipe this new value though all pc/npc checks.
Do not produce this new value yet.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230628071202.230991-5-richard.henderson@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Let the compiler decide about inlining.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230628071202.230991-4-richard.henderson@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
During translation, npc == address, DYNAMIC_PC, or JUMP_PC.
It is only the encoding between here and sparc_restore_state_to_opc
that considers JUMP_PC to be a bit within a larger value.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230628071202.230991-3-richard.henderson@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230628071202.230991-2-richard.henderson@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
The microblaze architecture does not reorder instructions.
While there is an MBAR wait-for-data-access instruction,
this concerns synchronizing with DMA.
This should have been defined when enabling MTTCG.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar@zeroasic.com>
Fixes: d449561b13 ("configure: microblaze: Enable mttcg")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230621135633.1649-4-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* Validate cluster and NUMA node boundary on ARM and RISC-V
* various small TCG features from newer processors
* Remove dubious 'event_notifier-posix.c' include
* fix git-submodule.sh in releases
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* kvm: reuse per-vcpu stats fd to avoid vcpu interruption
* Validate cluster and NUMA node boundary on ARM and RISC-V
* various small TCG features from newer processors
* Remove dubious 'event_notifier-posix.c' include
* fix git-submodule.sh in releases
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# gpg: Signature made Mon 26 Jun 2023 10:24:34 AM CEST
# gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg: issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [undefined]
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
git-submodule.sh: allow running in validate mode without previous update
target/i386: implement SYSCALL/SYSRET in 32-bit emulators
target/i386: implement RDPID in TCG
target/i386: sysret and sysexit are privileged
target/i386: AMD only supports SYSENTER/SYSEXIT in 32-bit mode
target/i386: Intel only supports SYSCALL/SYSRET in long mode
target/i386: TCG supports WBNOINVD
target/i386: TCG supports XSAVEERPTR
target/i386: do not accept RDSEED if CPUID bit absent
target/i386: TCG supports RDSEED
target/i386: TCG supports 3DNow! prefetch(w)
target/i386: fix INVD vmexit
kvm: reuse per-vcpu stats fd to avoid vcpu interruption
hw/riscv: Validate cluster and NUMA node boundary
hw/arm: Validate cluster and NUMA node boundary
numa: Validate cluster and NUMA node boundary if required
hw/remote/proxy: Remove dubious 'event_notifier-posix.c' include
build: further refine build.ninja rules
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
AMD supports both 32-bit and 64-bit SYSCALL/SYSRET, but the TCG only
exposes it for 64-bit targets. For system emulation just reuse the
helper; for user-mode emulation the ABI is the same as "int $80".
The BSDs does not support any fast system call mechanism in 32-bit
mode so add to bsd-user the same stub that FreeBSD has for 64-bit
compatibility mode.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
RDPID corresponds to a RDMSR(TSC_AUX); however, it is unprivileged
so for user-mode emulation we must provide the value that the kernel
places in the MSR. For Linux, it is a combination of the current CPU
and the current NUMA node, both of which can be retrieved with getcpu(2).
Also try sched_getcpu(), which might be there on the BSDs. If there is
no portable way to retrieve the current CPU id from userspace, return 0.
RDTSCP is reimplemented as RDTSC + RDPID ECX; the differences in terms
of serializability are not relevant to QEMU.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
WBNOINVD is the same as INVD or WBINVD as far as TCG is concerned,
since there is no cache in TCG and therefore no invalidation side effect
in WBNOINVD.
With respect to SVM emulation, processors that do not support WBNOINVD
will ignore the prefix and treat it as WBINVD, while those that support
it will generate exactly the same vmexit.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
XSAVEERPTR is actually a fix for an errata; TCG does not have the issue.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
TCG implements RDSEED, and in fact uses qcrypto_random_bytes which is
secure enough to match hardware behavior. Expose it to guests.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The AMD prefetch(w) instructions have not been deprecated together with the rest
of 3DNow!, and in fact are even supported by newer Intel processor. Mark them
as supported by TCG, as it supports all of 3DNow!.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Due to a typo or perhaps a brain fart, the INVD vmexit was never generated.
Fix it (but not that fixing just the typo would break both INVD and WBINVD,
due to a case of two wrongs making a right).
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Doorbells in SMT need to coordinate msgsnd/msgclr and DPDES access from
multiple threads that affect the same state.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
A relatively simple case to begin with, CTRL is a SMT shared register
where reads and writes need to synchronise against state changes by
other threads in the core.
Atomic serialisation operations are used to achieve this.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
TGC SMT emulation needs to know whether it is running with SMT siblings,
to be able to iterate over siblings in a core, and to serialise
threads to access per-core shared SPRs. Add infrastructure to do these
things.
For now the sibling iteration and serialisation are implemented in a
simple but inefficient way. SMT shared state and sibling access is not
too common, and SMT configurations are mainly useful to test system
code, so performance is not to critical.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[ clg: fix build breakage with clang ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
The top bits of the LEV field of the sc instruction are to be treated as
as a reserved field rather than a reserved value, meaning LEV is
effectively the bottom bit. LEV=0xF should be treated as LEV=1 and be
a hypercall, for example.
This changes the instruction execution to just set lev from the low bit
of the field. Processors which don't support the LEV field will continue
to ignore it.
ISA v3.1 defines LEV to be 2 bits, in order to add the 'sc 2' ultracall
instruction. TCG does not support Ultravisor, so don't worry about
that bit.
Suggested-by: "Harsh Prateek Bora" <harshpb@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
The CTRL register is able to write the bit in the RUN field, which gets
reflected into the TS field which is read-only and contains the state of
the RUN field for all threads in the core.
TCG does not implement SMT, so the correct implementation just requires
mirroring the RUN bit into the first bit of the TS field.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
System call interrupts in ISA v3.1 CPUs add a LEV indication in SRR1
that corresponds with the LEV field of the instruction that caused the
interrupt.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
The hypervisor emulation assistance interrupt modifies HEIR to
contain the value of the instruction which caused the exception.
Only TCG raises HEAI interrupts so this can be made TCG-only.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
ISA v3.1 introduced prefix instructions. Among the changes, various
synchronous interrupts report whether they were caused by a prefix
instruction in (H)SRR1.
The case of instruction fetch that causes an HDSI due to access of a
process-scoped table faulting on the partition scoped translation is the
tricky one. As with ISIs and HISIs, this does not try to set the prefix
bit because there is no instruction image to be loaded. The HDSI needs
the originating access type to be passed through to the handler to
distinguish this from HDSIs that fault translating process scoped tables
originating from a load or store instruction (in that case the prefix
bit should be provided).
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[ clg: checkpatch issues ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Rather than always performing partition scope page table translation
with access type of 0 (MMU_DATA_LOAD), pass through the processor
access type which first initiated the translation sequence. Process-
scoped page table loads are then set to MMU_DATA_LOAD access type in
the xlate function.
This will allow more information to be passed to the exception
handler in the next patch.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
powerpc ifetch endianness depends on MSR[LE] so it has to byteswap
after cpu_ldl_code(). This corrects DSISR bits in alignment
interrupts when running in little endian mode.
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
When the Timer Control and Timer Status registers are modified, avoid
calling the KVM backend when not available
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Make sure each CPU gets its state set up for gdb, not just the ones
before PowerPCCPUClass has had its gdb state set up.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Brown bag time: store instead of load results in uninitialized temp.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1704
Reported-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620134659.817559-1-richard.henderson@linaro.org
Fixes: e6dd5e782b ("target/arm: Use tcg_gen_qemu_{ld, st}_i128 in gen_sve_{ld, st}r")
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
One cannot test for feature aa32_simd_r32 without first
testing if AArch32 mode is supported at all. This leads to
qemu-system-aarch64: ARM CPUs must have both VFP-D32 and Neon or neither
for Apple M1 cpus.
We already have a check for ARMv8-A never setting vfp-d32 true,
so restructure the code so that AArch64 avoids the test entirely.
Reported-by: Mads Ynddal <mads@ynddal.dk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Mads Ynddal <m.ynddal@samsung.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Mads Ynddal <m.ynddal@samsung.com>
Message-id: 20230619140216.402530-1-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add an x-rme cpu property to enable FEAT_RME.
Add an x-l0gptsz property to set GPCCR_EL3.L0GPTSZ,
for testing various possible configurations.
We're not currently completely sure whether FEAT_RME will
be OK to enable purely as a CPU-level property, or if it will
need board co-operation, so we're making these experimental
x- properties, so that the people developing the system
level software for RME can try to start using this and let
us know how it goes. The command line syntax for enabling
this will change in future, without backwards-compatibility.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-21-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Place the check at the end of get_phys_addr_with_struct,
so that we check all physical results.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-20-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Handle GPC Fault types in arm_deliver_fault, reporting as
either a GPC exception at EL3, or falling through to insn
or data aborts at various exception levels.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-19-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The function takes the fields as filled in by
the Arm ARM pseudocode for TakeGPCException.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-18-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This fixes a bug in which we failed to initialize
the result attributes properly after the memset.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-17-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Instead of passing this to get_phys_addr_lpae, stash it
in the S1Translate structure.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-16-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Do not provide a fast-path for physical addresses,
as those will need to be validated for GPC.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-15-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
While Root and Realm may read and write data from other spaces,
neither may execute from other pa spaces.
This happens for Stage1 EL3, EL2, EL2&0, and Stage2 EL1&0.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-14-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
With Realm security state, bit 55 of a block or page descriptor during
the stage2 walk becomes the NS bit; during the stage1 walk the bit 5
NS bit is RES0. With Root security state, bit 11 of the block or page
descriptor during the stage1 walk becomes the NSE bit.
Rather than collecting an NS bit and applying it later, compute the
output pa space from the input pa space and unconditionally assign.
This means that we no longer need to adjust the output space earlier
for the NSTable bit.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-13-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Test in_space instead of in_secure so that we don't
switch out of Root space.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-12-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add input and output space members to S1Translate. Set and adjust
them in S1_ptw_translate, and the various points at which we drop
secure state. Initialize the space in get_phys_addr; for now leave
get_phys_addr_with_secure considering only secure vs non-secure spaces.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-11-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This was added in 7e98e21c09 as part of a reorg in which
one of the argument had been legally NULL, and this caught
actual instances. Now that the reorg is complete, this
serves little purpose.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-10-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
With FEAT_RME, there are four physical address spaces.
For now, just define the symbols, and mention them in
the same spots as the other Phys indexes in ptw.c.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-9-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
It will be helpful to have ARMMMUIdx_Phys_* to be in the same
relative order as ARMSecuritySpace enumerators. This requires
the adjustment to the nstable check. While there, check for being
in secure state rather than rely on clearing the low bit making
no change to non-secure state.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-8-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
