Commit graph

1327 commits

Author SHA1 Message Date
Pavel Fedin eb5e1d3c85 target-arm: Use the kernel's idea of MPIDR if we're using KVM
When we're using KVM, the kernel's internal idea of the MPIDR
affinity fields must match the values we tell it for the guest
vcpu cluster configuration in the device tree. Since at the moment
the kernel doesn't support letting userspace tell it the correct
affinity fields to use, we must read the kernel's view and
reflect that back in the device tree.

Signed-off-by: Shlomo Pongratz <shlomo.pongratz@huawei.com>
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Message-id: 02f601d0a1e6$90c7d630$b2578290$@samsung.com
[PMM: Use a local #define rather than a global variable for
 the TCG ARM_CPUS_PER_CLUSTER setting. Tweak a comment. Update the
 commit message.]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-15 18:06:09 +01:00
Sergey Fedorov ac00c79ff6 target-arm: add AArch32 MIDR aliases in ARMv8
According to ARMv8 ARM, there are additional aliases to MIDR system register in
AArch32 state. So add them to the list.

Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-id: 1433321048-23793-3-git-send-email-serge.fdrv@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-15 18:06:08 +01:00
Sergey Fedorov 13b72b2b9a target-arm: Fix REVIDR reset value
According to ARM Cortex-A53/A57 TRM, REVIDR reset value should be zero. So let
REVIDR reset value be specified by CPU model and correct it for Cortex-A53/A57.

Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-id: 1433321048-23793-2-git-send-email-serge.fdrv@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-15 18:06:08 +01:00
Shannon Zhao 7525465e6d target-arm/kvm64: Add cortex-a53 cpu support
Since commit e353102(target-arm: cpu64: Add support for Cortex-A53) has
added Cortex-A53 cpu support for target-arm, this patch just enables it
for kvm-arm.

Here adding XGENE_POTENZA just makes the enum continuous.

Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Message-id: 1433207452-4512-2-git-send-email-shannon.zhao@linaro.org
[PMM: Don't add the CPU types to cpus_to_try[]; this array only
 lists old CPUs which were supported in pre-PREFERRED_TARGET kernels]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-15 18:06:08 +01:00
Alex Bennée a79e0218e0 target-arm/cpu.h: remove pending_exception
This isn't used by any of the code. In fact it looks like it was never
used as it came in with ARMv7 support.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1434020015-8868-1-git-send-email-alex.bennee@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-15 18:06:08 +01:00
Sergey Fedorov 4e42a6ca37 target-arm: use extended address bits from supersection short descriptor
Since ARMv7 with LPAE support, a supersection short translation table
descriptor has had extended base address fields which hold bits 39:32 of
translated address. These fields are IMPDEF in ARMv6 and ARMv7 without
LPAE support.

Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-id: 1433235718-30485-1-git-send-email-serge.fdrv@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-15 18:06:07 +01:00
Peter Maydell fc1891c74a target-arm: Handle "extended small page" descriptors correctly
The old ARMv5-style page table format includes a kind of second level
descriptor named the "extended small page" format, whose primary purpose
is to allow specification of the TEX memory attribute bits on a 4K page.
This exists on ARMv6 and also (as an implementation extension) on XScale
CPUs; it's UNPREDICTABLE on v5.

We were mishandling this in two ways:
 (1) we weren't implementing it for v6 (probably never noticed because
Linux will use the new-style v6 page table format there)
 (2) we were not correctly setting the page_size, which is 4K, not 1K

The latter bug went unnoticed for years because the only thing which
the page_size affects is which TLB entries get flushed when the guest
does a TLB invalidate on an address in the page, and prior to commit
2f0d8631b7 we were doing a full TLB flush very frequently due to Linux's
habit of writing the SCTLR pointlessly a lot.

(We can assume that after commit 2f0d8631b7 the bug went unnoticed
for a year because nobody's actually using the Zaurus/XScale emulation...)

Report the correct page size for these descriptors, and permit them
on ARMv6 CPUs. This fixes a problem where a kernel image for Zaurus
can boot the kernel OK but gets random segfaults when it tries to
run userspace programs.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1432844085-16441-1-git-send-email-peter.maydell@linaro.org
2015-06-15 18:06:07 +01:00
Juan Quintela 5cd8cadae8 migration: Use normal VMStateDescriptions for Subsections
We create optional sections with this patch.  But we already have
optional subsections.  Instead of having two mechanism that do the
same, we can just generalize it.

For subsections we just change:

- Add a needed function to VMStateDescription
- Remove VMStateSubsection (after removal of the needed function
  it is just a VMStateDescription)
- Adjust the whole tree, moving the needed function to the corresponding
  VMStateDescription

Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-06-12 06:53:57 +02:00
Peter Maydell 4771cd01da target-arm: Remove v8_ prefix from names of non-v8-specific cpreg arrays
The ARMCPRegInfo arrays v8_el3_no_el2_cp_reginfo and v8_el2_cp_reginfo
are actually used on non-v8 CPUs as well. Remove the incorrect v8_
prefix from their names.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1433182716-6400-1-git-send-email-peter.maydell@linaro.org
2015-06-02 15:32:43 +01:00
Eric Auger 1850b6b7d0 kvm: introduce kvm_arch_msi_data_to_gsi
On ARM the MSI data corresponds to the shared peripheral interrupt (SPI)
ID. This latter equals to the SPI index + 32. to retrieve the SPI index,
matching the gsi, an architecture specific function is introduced.

Signed-off-by: Eric Auger <eric.auger@linaro.org>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-02 14:56:25 +01:00
Markus Armbruster 57b6d95eb4 Revert "target-arm: Avoid g_hash_table_get_keys()"
Since we now require GLib 2.22+ (commit f40685c), we don't have to
work around lack of g_hash_table_get_keys() anymore.

This reverts commit 82a3a11897.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1432749090-4698-1-git-send-email-armbru@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-02 14:56:25 +01:00
Edgar E. Iglesias 8742d49d6f target-arm: Add TLBI_VAE2{IS}
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1432881807-18164-11-git-send-email-edgar.iglesias@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-02 14:56:25 +01:00
Edgar E. Iglesias 51da90140b target-arm: Add TLBI_ALLE2
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1432881807-18164-10-git-send-email-edgar.iglesias@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-02 14:56:25 +01:00
Edgar E. Iglesias bdb9e2d66a target-arm: Add TLBI_ALLE1{IS}
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1432881807-18164-9-git-send-email-edgar.iglesias@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-02 14:56:25 +01:00
Edgar E. Iglesias a57633c08f target-arm: Add TTBR0_EL2
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1432881807-18164-8-git-send-email-edgar.iglesias@gmail.com
[PMM: Switch to preferred opc1/crm order for 64-bit AArch32 cpregs;
 drop unneeded use of vmsa_ttbr_writefn]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-02 14:56:25 +01:00
Edgar E. Iglesias ff05f37bab target-arm: Add TPIDR_EL2
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1432881807-18164-7-git-send-email-edgar.iglesias@gmail.com
[PMM: reordered fields into preferred opc0/opc1/crn/crm/opc2 order]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-02 14:56:25 +01:00
Edgar E. Iglesias b9cb5323bb target-arm: Add SCTLR_EL2
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1432881807-18164-6-git-send-email-edgar.iglesias@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-02 14:56:25 +01:00
Edgar E. Iglesias 06ec4c8c9f target-arm: Add TCR_EL2
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1432881807-18164-5-git-send-email-edgar.iglesias@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-02 14:56:25 +01:00
Edgar E. Iglesias 95f949ac3d target-arm: Add MAIR_EL2
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1432881807-18164-4-git-send-email-edgar.iglesias@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-02 14:56:25 +01:00
Edgar E. Iglesias a903c449b4 target-arm: Break down TLB_LOCKDOWN
Break down the overly broad wildcard definition of TLB_LOCKDOWN
down to v7 level.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1432881807-18164-3-git-send-email-edgar.iglesias@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-02 14:56:25 +01:00
Edgar E. Iglesias 3fc827d591 target-arm: Correct check for non-EL3
This fixes a compile warning from clang 3.5 (the assertion
could never fire).

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1432881807-18164-2-git-send-email-edgar.iglesias@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: John Snow <jsnow@redhat.com>
[PMM: added note in commit message that this is fixing a build warning]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-02 13:22:29 +01:00
Peter Maydell 3960c336ad target-arm: Avoid buffer overrun on UNPREDICTABLE ldrd/strd
A LDRD or STRD where rd is not an even number is UNPREDICTABLE.
We were letting this fall through, which is OK unless rd is 15,
in which case we would attempt to do a load_reg or store_reg
to a nonexistent r16 for the second half of the double-word.
Catch the odd-numbered-rd cases and UNDEF them instead.

To do this we rearrange the structure of the code a little
so we can put the UNDEF catches at the top before we've
allocated TCG temporaries.

Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1431348973-21315-1-git-send-email-peter.maydell@linaro.org
2015-05-29 11:29:00 +01:00
Greg Bellows b1eced713d target-arm: Add WFx instruction trap support
Add support for trapping WFI and WFE instructions to the proper EL when
SCTLR/SCR/HCR settings apply.

Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
[PMM: removed unnecessary tweaking of syn_wfx() prototype;
 use raise_exception();
 don't trap on WFE (and add comment explaining why not);
 remove unnecessary ARM_FEATURE checks;
 trap to EL3, not EL1, if in S-EL0 and SCTLR check fires]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2015-05-29 11:28:53 +01:00
Peter Maydell 84549b6dcf target-arm: Don't halt on WFI unless we don't have any work
Just NOP the WFI instruction if we have work to do.
This doesn't make much difference currently (though it does avoid
jumping out to the top level loop and immediately restarting),
but the distinction between "halt" and "don't halt" will become
more important when the decision to halt requires us to trap
to a higher exception level instead.

Suggested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2015-05-29 11:28:53 +01:00
Peter Maydell 647f767ba3 target-arm: Move TB flags down to fill gap
Deleting the now-unused ARM_TBFLAG_CPACR_FPEN left a gap in the
bit usage; move the following ARM_TBFLAG_XSCALE_CPAR and
ARM_TBFLAG_NS_SHIFT down 3 bits to fill the gap.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2015-05-29 11:28:53 +01:00
Greg Bellows 9dbbc748d6 target-arm: Extend FP checks to use an EL
Extend the ARM disassemble context to take a target exception EL instead of a
boolean enable. This change reverses the polarity of the check making a value
of 0 indicate floating point enabled (no exception).

Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
[PMM: Use a common TB flag field for AArch32 and AArch64;
 CPTR_EL2 exists in v7; CPTR_EL2 should trap for EL2 accesses;
 CPTR_EL2 should not trap for secure accesses; CPTR_EL3
 should trap for EL3 accesses; CPACR traps for secure
 accesses should trap to EL3 if EL3 is AArch32]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2015-05-29 11:28:53 +01:00
Peter Maydell 3cf6a0fced target-arm: Make singlestate TB flags common between AArch32/64
Currently we keep the TB flags PSTATE_SS and SS_ACTIVE in different
bit positions for AArch64 and AArch32. Replace these separate
definitions with a single common flag in the upper part of the
flags word.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2015-05-29 11:28:52 +01:00
Greg Bellows c6f191642a target-arm: Add AArch64 CPTR registers
Adds CPTR_EL2/3 system registers definitions and access function.

Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
[PMM: merge CPTR_EL2 and HCPTR definitions into a single
 def using STATE_BOTH;
 don't use readfn/writefn to implement RAZ/WI registers;
 don't use accessfn for the no-EL2 CPTR_EL2;
 fix cpacr_access logic to catch EL2 accesses to CPACR being
 trapped to EL3;
 use new CP_ACCESS_TRAP_EL[23] rather than setting
 exception.target_el directly]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2015-05-29 11:28:52 +01:00
Peter Maydell 38836a2cd4 target-arm: Allow cp access functions to indicate traps to EL2 or EL3
Some coprocessor access functions will need to indicate that the
instruction should trap to EL2 or EL3 rather than the default
target exception level; add corresponding CPAccessResult enum
entries and handling code.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2015-05-29 11:28:52 +01:00
Greg Bellows 012a906b19 target-arm: Update interrupt handling to use target EL
Updated the interrupt handling to utilize and report through the target EL
exception field.  This includes consolidating and cleaning up code where
needed. Target EL is now calculated once in arm_cpu_exec_interrupt() and
do_interrupt was updated to use the target_el exception field.  The
necessary code from arm_excp_target_el() was merged in where needed and the
function removed.

Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1429722561-12651-4-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-29 11:28:51 +01:00
Peter Maydell c63285991b target-arm: Make raise_exception() take syndrome and target EL
Rather than making every caller of raise_exception set the
syndrome and target EL by hand, make these arguments to
raise_exception() and have that do the job.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2015-05-29 11:28:51 +01:00
Peter Maydell 863b6589d7 target-arm: Set exception target EL in tlb_fill
Set the exception target EL for MMU faults in tlb_fill.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2015-05-29 11:28:51 +01:00
Peter Maydell 8c6084bf10 target-arm: Move setting of exception info into tlb_fill
Move the code which sets exception information out of
arm_cpu_handle_mmu_fault and into tlb_fill. tlb_fill
is the only caller which wants to raise_exception()
so it makes more sense for it to handle the whole of
the exception setup.

As part of this cleanup, move the user-mode-only
implementation function for the handle_mmu_fault CPU
method into cpu.c so we don't need to make it globally
visible, and rename the softmmu-only utility function
arm_cpu_handle_mmu_fault to arm_tlb_fill so it's clear
that it's not the same thing.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2015-05-29 11:28:51 +01:00
Peter Maydell f2932df777 target-arm: Set correct syndrome for faults on MSR DAIF*, imm
If the SCTLR.UMA trap bit is set then attempts by EL0 to update
the PSTATE DAIF bits via "MSR DAIFSet, imm" and "MSR DAIFClr, imm"
instructions will raise an exception. We were failing to set
the syndrome information for this exception, which meant that
it would be reported as a repeat of whatever the previous
exception was. Set the correct syndrome information.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2015-05-29 11:28:50 +01:00
Greg Bellows e3b1d48099 target-arm: Extend helpers to route exceptions
Updated the various helper routines to set the target EL as needed using a
dedicated function.

Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1429722561-12651-3-git-send-email-greg.bellows@linaro.org
[PMM: Also set target_el in fault cases in access_check_cp_reg()]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-29 11:28:50 +01:00
Greg Bellows 7371036198 target-arm: Add exception target el infrastructure
Add a CPU state exception target EL field that will be used for communicating
the EL to which an exception should be routed.

Add a disassembly context field for tracking the EL3 architecture needed for
determining the target exception EL.

Add a target EL argument to the generic exception helper for callers to specify
the EL to which the exception should be routed.  Extended the helper to set
the newly added CPU state exception target el.

Added a function for setting the target exception EL and updated calls to helpers
to call it.

Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1429722561-12651-2-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-29 11:28:50 +01:00
Edgar E. Iglesias 18084b2f71 target-arm: Remove unneeded '+'
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1431499963-1019-4-git-send-email-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-18 20:04:19 +01:00
Edgar E. Iglesias b65c08ee1a target-arm: Correct accessfn for CNTV_TVAL_EL0
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1431499963-1019-3-git-send-email-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-18 20:04:17 +01:00
Edgar E. Iglesias 12cde08aaf target-arm: Correct accessfn for CNTP_{CT}VAL_EL0
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1431499963-1019-2-git-send-email-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-18 20:04:04 +01:00
Greg Bellows 06fbb2fdf7 target-arm: Add WFx syndrome function
Adds a utility function for creating a WFx exception syndrome

Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1429722561-12651-9-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-18 20:04:04 +01:00
Greg Bellows 88e8add8b6 target-arm: Add EL3 and EL2 TCR checking
Updated get_phys_addr_lpae to check the appropriate TTBCR/TCR depending on the
current EL. Support includes using the different TCR format as well as checks to
insure TTBR1 is not used when in EL2 or EL3.

Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1429722561-12651-8-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-18 20:04:04 +01:00
Greg Bellows aef878be4e target-arm: Add TTBR regime function and use
Add a utility function for choosing the correct TTBR system register based on
the specified MMU index. Add use of function on physical address lookup.

Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1429722561-12651-7-git-send-email-greg.bellows@linaro.org
[PMM: fixed regime_ttbr() return type to be uint64_t]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-18 20:04:04 +01:00
Peter Crosthwaite e35310260e target-arm: cpu64: Add support for Cortex-A53
Add the ARM Cortex-A53 processor definition. Similar to A57, but with
different L1 I cache policy, phys addr size and different cache
geometries. The cache sizes is implementation configurable, but use
these values (from Xilinx Zynq MPSoC) as a default until cache size
configurability is added.

Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: db439ff834cf0431bc192b05272a3b28fe2045d0.1431381507.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-18 16:41:08 +01:00
Peter Crosthwaite ee804264dd target-arm: cpu64: generalise name of A57 regs
Rename some A57 CP register variables in preparation for support for
Cortex A53. Use "a57_a53" to describe the shareable features. Some of
the CP15 registers (such as ACTLR) are specific to implementation, but
we currently just RAZ them so continue with that as the policy for both
A57 and A53 processors under a shared definition.

Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 5a5f957994677d91435190b3be1cefa6f657e274.1431381507.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-18 16:31:59 +01:00
Richard Henderson 3972ef6f83 tcg: Push merged memop+mmu_idx parameter to softmmu routines
The extra information is not yet used but it is now available.
This requires minor changes through all of the tcg backends.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-05-14 12:15:14 -07:00
Peter Maydell b951cda21d - build bugfix from Fam and new configure check from Emilio
- two improvements to "info mtere" from Gerd
 - KVM support for memory transaction attributes
 - one more small step towards unlocked MMIO dispatch
 - one piece of the qemu-nbd errno fixes
 - trivial-ish patches from Denis and Thomas
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

- build bugfix from Fam and new configure check from Emilio
- two improvements to "info mtere" from Gerd
- KVM support for memory transaction attributes
- one more small step towards unlocked MMIO dispatch
- one piece of the qemu-nbd errno fixes
- trivial-ish patches from Denis and Thomas

# gpg: Signature made Fri May  8 13:47:29 2015 BST using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain 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

* remotes/bonzini/tags/for-upstream:
  qemu-nbd: only send a limited number of errno codes on the wire
  rules.mak: Force CFLAGS for all objects in DSO
  configure: require __thread support
  exec: move rcu_read_lock/unlock to address_space_translate callers
  kvm: add support for memory transaction attributes
  mtree: also print disabled regions
  mtree: tag & indent a bit better
  apic_common: improve readability of apic_reset_common
  kvm: Silence warning from valgrind

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-11 12:01:09 +01:00
Paolo Bonzini 4c66375252 kvm: add support for memory transaction attributes
Let kvm_arch_post_run convert fields in the kvm_run struct to MemTxAttrs.
These are then passed to address_space_rw.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-04-30 16:55:32 +02:00
Peter Crosthwaite fee068e4f1 tcg: Delete unused cpu_pc_from_tb()
No code uses the cpu_pc_from_tb() function. Delete from tricore and
arm which each provide an unused implementation. Update the comment
in tcg.h to reflect that this is obsoleted by synchronize_from_tb.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-04-30 16:06:18 +03:00
Peter Crosthwaite ef1d27f4b1 arm: cpu.h: Remove unused typdefs
These CP accessor function prototypes are unused. Remove them.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-04-30 16:05:48 +03:00
Greg Bellows 4eb2764083 Allow ARMv8 SCR.SMD updates
Updated scr_write to always allow updates to the SCR.SMD bit on ARMv8
regardless of whether virtualization (EL2) is enabled or not.

Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Message-id: 1429888797-4378-1-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-04-26 16:49:26 +01:00