提交 · bc92e4e97ed62efa61ba983f57dfe33f10fe1d88 · openeuler / qemu

17 12月, 2015 40 次提交

kvm-all: PAGE_SIZE should be real host page size · bc92e4e9

由 Andrew Jones 提交于 11月 09, 2015

Just noticed this while grepping TARGET_PAGE_SIZE for an unrelated
reason. I didn't use qemu_real_host_page_size as kvm_set_phys_mem()
does, because we'd need to make sure page_size_init() has run first.
Signed-off-by: NAndrew Jones <drjones@redhat.com>
Message-Id: <1447115022-4142-1-git-send-email-drjones@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

bc92e4e9

exec: Remove unnecessary RAM_FILE flag · 2f3a2bb1

由 Eduardo Habkost 提交于 11月 06, 2015

The only code that sets RAMBlock.fd is file_ram_alloc(), and the only
code that calls file_ram_alloc() sets the RAM_FILE flag. That means the
flag is always set when RAMBlock.fd >= 0, and the munmap() call at
reclaim_ramblock() is dead code that never runs.
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
Message-Id: <1446847881-9385-1-git-send-email-ehabkost@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

2f3a2bb1

memory: Eliminate memory_region_destructor_ram_from_ptr() · fc3e7665

由 Eduardo Habkost 提交于 11月 06, 2015

The function is equivalent to memory_region_destructor_ram(), so
it's not needed anymore.
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
Message-Id: <1446844805-14492-3-git-send-email-ehabkost@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

fc3e7665

exec: Eliminate qemu_ram_free_from_ptr() · a29ac166

由 Eduardo Habkost 提交于 11月 06, 2015

Replace qemu_ram_free_from_ptr() with qemu_ram_free().

The only difference between qemu_ram_free_from_ptr() and
qemu_ram_free() is that g_free_rcu() is used instead of
call_rcu(reclaim_ramblock). We can safely replace it because:

* RAM blocks allocated by qemu_ram_alloc_from_ptr() always have
  RAM_PREALLOC set;
* reclaim_ramblock(block) will do nothing except g_free(block)
  if RAM_PREALLOC is set at block->flags.
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
Message-Id: <1446844805-14492-2-git-send-email-ehabkost@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

a29ac166

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20151217-1' into staging · e5fbe28e

由 Peter Maydell 提交于 12月 17, 2015

target-arm queue:
 * i.MX CCM patches
 * support guest debug for AArch64 KVM
 * support power button on virt board via GPIO
 * clean up AArch32 singlestep code
 * raise exception on misaligned LDREX operands
 * soc-dma: use hwaddr instead of target_ulong in printf
 * explicitly mark some ARM device loads as little-endian
 * i.MX: add support for lower and upper interrupt in GPIO

# gpg: Signature made Thu 17 Dec 2015 13:38:09 GMT using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"

* remotes/pmaydell/tags/pull-target-arm-20151217-1: (25 commits)
  i.MX: Add an i.MX25 specific CCM class/instance
  i.MX: Split the CCM class into an abstract base class and a concrete class
  i.MX: rename i.MX CCM get_clock() function and CLK ID enum names
  i.MX: Fix i.MX31 default/reset configuration
  tests/guest-debug: introduce basic gdbstub tests
  target-arm: kvm - re-inject guest debug exceptions
  target-arm: kvm - add support for HW assisted debug
  target-arm: kvm - support for single step
  target-arm: kvm - implement software breakpoints
  target-arm: kvm64 - introduce kvm_arm_init_debug()
  ARM: Virt: Add gpio-keys node for Poweroff using DT
  ARM: Virt: Add QEMU powerdown notifier and hook it to GPIO Pin 3
  ARM: ACPI: Add _E03 for Power Button
  ACPI: Add aml_gpio_int() wrapper for GPIO Interrupt Connection
  ACPI: Add GPIO Connection Descriptor
  ARM: ACPI: Add power button device in ACPI DSDT table
  ARM: ACPI: Add GPIO controller in ACPI DSDT table
  ARM: Virt: Add a GPIO controller
  acpi: extend aml_interrupt() to support multiple irqs
  acpi: support serialized method
  ...
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

e5fbe28e

i.MX: Add an i.MX25 specific CCM class/instance · 92eccc6e

由 Jean-Christophe Dubois 提交于 12月 17, 2015

With this CCM, i.MX25 timer is accurate with "real world time".
Signed-off-by: NJean-Christophe Dubois <jcd@tribudubois.net>
Message-id: 2c0cf90be767bfc8520661eca891ab22c61f18fe.1449528242.git.jcd@tribudubois.net
Reviewed-by Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

92eccc6e

i.MX: Split the CCM class into an abstract base class and a concrete class · cb54d868

由 Jean-Christophe Dubois 提交于 12月 17, 2015

The IMX_CCM class is now the base abstract class that is used by EPIT
and GPT timer implementation.

IMX31_CCM class is the concrete class implementing CCM for i.MX31 SOC.

For now the i.MX25 continues to use the i.MX31 CCM implementation.

An i.MX25 specific CCM will be introduced in a later patch.

We also rework initialization to stop using deprecated sysbus device init.
Signed-off-by: NJean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: NPeter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: fd3c7f87b50f5ebc99ec91f01413db35017f116d.1449528242.git.jcd@tribudubois.net
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

cb54d868

i.MX: rename i.MX CCM get_clock() function and CLK ID enum names · aaa9ec3b

由 Jean-Christophe Dubois 提交于 12月 17, 2015

This is to prepare for CCM code refactoring.

This is just a bit of function and enum values renaming.

We also remove some useless intermediate variables.
Signed-off-by: NJean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: NPeter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 53c4d9b9611988a5f56f178f285e04490747925e.1449528242.git.jcd@tribudubois.net
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

aaa9ec3b

i.MX: Fix i.MX31 default/reset configuration · 9de46a0a

由 Jean-Christophe Dubois 提交于 12月 17, 2015

Linux on i.MX31/KZM is expecting the CCM to use the CKIH ref clock
instead of the CKIL plus the FPM multiplier.

We change the CCMR reg reset value to match linux expected config.

This allows the CCM to provide a 39MHz clk (as expected by linux)
instead of the actual 50MHz.

With this change the "sleep 60" command on linux is time accurate
with "real world time".
Signed-off-by: NJean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: NPeter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 6dc5bc4e0a450b20cecdb2991112e7281b653345.1449528242.git.jcd@tribudubois.net
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

9de46a0a

tests/guest-debug: introduce basic gdbstub tests · 261f4d6d

由 Alex Bennée 提交于 12月 17, 2015

The aim of these tests is to combine with an appropriate kernel
image (with symbol-file vmlinux) and check it behaves as it should.
Given a kernel it checks:

  - single step
  - software breakpoint
  - hardware breakpoint
  - access, read and write watchpoints

On success it returns 0 to the calling process.

I've not plumbed this into the "make check" logic though as we need a
solution for providing non-host binaries to the tests. However the test
is structured to work with pretty much any Linux kernel image as it
uses the basic kernel_init code which is common across architectures.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Message-id: 1449599553-24713-7-git-send-email-alex.bennee@linaro.org
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

261f4d6d

target-arm: kvm - re-inject guest debug exceptions · 34c45d53

由 Alex Bennée 提交于 12月 17, 2015

If we can't find details for the debug exception in our debug state
then we can assume the exception is due to debugging inside the guest.
To inject the exception into the guest state we re-use the TCG exception
code (do_interrupt).

However while guest debugging is in effect we currently can't handle the
guest using single step as we will keep trapping to back to userspace.
GDB makes heavy use of single-step behind the scenes which effectively
means the guest's ability to debug itself is disabled while it is being
debugged.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Message-id: 1449599553-24713-6-git-send-email-alex.bennee@linaro.org
[PMM: Fixed a few typos in comments and commit message]
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

34c45d53

target-arm: kvm - add support for HW assisted debug · e4482ab7

由 Alex Bennée 提交于 12月 17, 2015

This adds basic support for HW assisted debug. The ioctl interface to
KVM allows us to pass an implementation defined number of break and
watch point registers. When KVM_GUESTDBG_USE_HW is specified these
debug registers will be installed in place on the world switch into the
guest.

The hardware is actually capable of more advanced matching but it is
unclear if this expressiveness is available via the gdbstub protocol.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Message-id: 1449599553-24713-5-git-send-email-alex.bennee@linaro.org
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

e4482ab7

target-arm: kvm - support for single step · 26ae5934

由 Alex Bennée 提交于 12月 17, 2015

This adds support for single-step. There isn't much to do on the QEMU
side as after we set-up the request for single step via the debug ioctl
it is all handled within the kernel.

The actual setting of the KVM_GUESTDBG_SINGLESTEP flag is already in the
common code. If the kernel doesn't support guest debug the ioctl will
simply error.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Message-id: 1449599553-24713-4-git-send-email-alex.bennee@linaro.org
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

26ae5934

target-arm: kvm - implement software breakpoints · 2ecb2027

由 Alex Bennée 提交于 12月 17, 2015

These don't involve messing around with debug registers, just setting
the breakpoint instruction in memory. GDB will not use this mechanism if
it can't access the memory to write the breakpoint.

All the kernel has to do is ensure the hypervisor traps the breakpoint
exceptions and returns to userspace.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Message-id: 1449599553-24713-3-git-send-email-alex.bennee@linaro.org
[PMM: Fixed typo in comment]
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

2ecb2027

target-arm: kvm64 - introduce kvm_arm_init_debug() · 29eb3d9a

由 Alex Bennée 提交于 12月 17, 2015

As we haven't always had guest debug support we need to probe for it.
Additionally we don't do this in the start-up capability code so we
don't fall over on old kernels.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Message-id: 1449599553-24713-2-git-send-email-alex.bennee@linaro.org
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

29eb3d9a

ARM: Virt: Add gpio-keys node for Poweroff using DT · 3e6ebb64