| Commit message (Collapse) | Author | Age | Files | Lines |
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For RV32, the root page table's PPN has 22 bits hence its address
bits could be larger than the maximum bits that target_ulong is
able to represent. Use hwaddr instead.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
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Update the Hypervisor CSR addresses to match the v0.4 spec.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
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Let's create a function that tests if floating point support is
enabled. We can then protect all floating point operations based on if
they are enabled.
This patch so far doesn't change anything, it's just preparing for the
Hypervisor support for floating point operations.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Christophe de Dinechin <dinechin@redhat.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
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Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Jonathan Behrens <fintelia@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Chih-Min Chao <chihmin.chao@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
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Use the always-compiled trace events, remove the now unused
RISCV_DEBUG_PMP definition.
Note pmpaddr_csr_read() could previously do out-of-bound accesses
passing addr_index >= MAX_RISCV_PMPS.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
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The RISC-V Physical Memory Protection is restricted to privileged
modes. Restrict its compilation to QEMU system builds.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
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The correct property name is clock-names, not clocks-names.
Without this patch, the Ethernet driver fails to instantiate with
the following error.
macb 100900fc.ethernet: failed to get macb_clk (-2)
macb: probe of 100900fc.ethernet failed with error -2
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
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The riscv uart needs valid clocks. This requires a refereence
to the clock node. Since the SOC clock is not emulated by qemu,
add a reference to a fixed clock instead. The clock-frequency
entry in the uart node does not seem to be necessary, so drop it.
In addition to a reference to the clock, the driver also needs
an aliases entry for the serial node. Add it as well.
Without this patch, the serial driver fails to instantiate with
the following error message.
sifive-serial 10013000.uart: unable to find controller clock
sifive-serial: probe of 10013000.uart failed with error -2
when trying to boot Linux.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
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Add support for loading initrd with "-initrd <filename>"
to the sifive_u machine. This lets us boot into Linux without
disk drive.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
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Switch the SPARC target from the old unassigned_access hook to the
new do_transaction_failed hook.
This will cause the "if transaction failed" code paths added in
the previous commits to become active if the access is to an
unassigned address. In particular we'll now handle bus errors
during page table walks correctly (generating a translation
error with the right kind of fault status).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20190801183012.17564-8-peter.maydell@linaro.org
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The dump_mmu() function does a ldl_phys() at the start, but
then never uses the value it loads at all. Remove the
unused code.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20190801183012.17564-7-peter.maydell@linaro.org
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Convert the mmu_probe() function to using address_space_ldl()
rather than ldl_phys(), so we can explicitly detect memory
transaction failures.
This makes no practical difference at the moment, because
ldl_phys() will return 0 on a transaction failure, and we
treat transaction failures and 0 PDEs identically. However
the spec says that MMU probe operations are supposed to
update the fault status registers, and if we ever implement
that we'll want to distinguish the difference. For the
moment, just add a TODO comment about the bug.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20190801183012.17564-6-peter.maydell@linaro.org
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Currently we use the ldl_phys() function to read page table entries.
With the unassigned_access hook in place, if these hit an unassigned
area of memory then the hook will cause us to wrongly generate
an exception with a fault address matching the address of the
page table entry.
Change to using address_space_ldl() so we can detect and correctly
handle bus errors and give them their correct behaviour of
causing a translation error with a suitable fault status register.
Note that this won't actually take effect until we switch the
over to using the do_translation_failed hook.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20190801183012.17564-5-peter.maydell@linaro.org
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Currently the ld/st_asi helper functions make calls to the
ld*_phys() and st*_phys() functions for those ASIs which
imply direct accesses to physical addresses. These implicitly
rely on the unassigned_access hook to cause them to generate
an MMU fault if the access fails.
Switch to using the address_space_* functions instead, which
return a MemTxResult that we can check. This means that when
we switch SPARC over to using the do_transaction_failed hook
we'll still get the same MMU faults we did before.
This commit converts the ASIs which do MXCC stream source
and destination accesses.
It's not clear to me whether raising an MMU fault like this
is the correct behaviour if we encounter a bus error, but
we retain the same behaviour that the old unassigned_access
hook would implement.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20190801183012.17564-4-peter.maydell@linaro.org
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Currently the ld/st_asi helper functions make calls to the
ld*_phys() and st*_phys() functions for those ASIs which
imply direct accesses to physical addresses. These implicitly
rely on the unassigned_access hook to cause them to generate
an MMU fault if the access fails.
Switch to using the address_space_* functions instead, which
return a MemTxResult that we can check. This means that when
we switch SPARC over to using the do_transaction_failed hook
we'll still get the same MMU faults we did before.
This commit converts the ASIs which do "MMU passthrough".
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20190801183012.17564-3-peter.maydell@linaro.org
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Currently the SPARC target uses the old-style do_unassigned_access
hook. We want to switch it over to do_transaction_failed, but to do
this we must first remove all the direct calls in ldst_helper.c to
cpu_unassigned_access(). Factor out the body of the hook function's
code into a new sparc_raise_mmu_fault() and call it from the hook and
from the various places that used to call cpu_unassigned_access().
In passing, this fixes a bug where the code that raised the
MMU exception was directly calling GETPC() from a function that
was several levels deep in the callstack from the original
helper function: the new sparc_raise_mmu_fault() instead takes
the return address as an argument.
Other than the use of retaddr rather than GETPC() and a comment
format fixup, the body of the new function has no changes from
that of the old hook function.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20190801183012.17564-2-peter.maydell@linaro.org
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* Fix Patchew CI failures (myself)
* i386 fw_cfg refactoring (Philippe)
* pmem bugfix (Stefan)
* Support for accessing cstate MSRs (Wanpeng)
* exec.c cleanups (Wei Yang)
* Improved throttling (Yury)
* elf-ops.h coverity fix (Stefano)
# gpg: Signature made Mon 16 Sep 2019 16:13:12 BST
# gpg: using RSA key BFFBD25F78C7AE83
# 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/tags/for-upstream: (29 commits)
hw/i386/pc: Extract the x86 generic fw_cfg code
hw/i386/pc: Rename pc_build_feature_control() as generic fw_cfg_build_*
hw/i386/pc: Let pc_build_feature_control() take a MachineState argument
hw/i386/pc: Let pc_build_feature_control() take a FWCfgState argument
hw/i386/pc: Rename pc_build_smbios() as generic fw_cfg_build_smbios()
hw/i386/pc: Let pc_build_smbios() take a generic MachineState argument
hw/i386/pc: Let pc_build_smbios() take a FWCfgState argument
hw/i386/pc: Replace PCMachineState argument with MachineState in fw_cfg_arch_create
hw/i386/pc: Pass the CPUArchIdList array by argument
hw/i386/pc: Pass the apic_id_limit value by argument
hw/i386/pc: Pass the boot_cpus value by argument
hw/i386/pc: Rename bochs_bios_init as more generic fw_cfg_arch_create
hw/i386/pc: Use address_space_memory in place
hw/i386/pc: Extract e820 memory layout code
hw/i386/pc: Use e820_get_num_entries() to access e820_entries
cpus: Fix throttling during vm_stop
qemu-thread: Add qemu_cond_timedwait
memory: inline and optimize devend_memop
memory: fetch pmem size in get_file_size()
elf-ops.h: fix int overflow in load_elf()
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Extract all the functions that are not PC-machine specific into
the (arch-specific) fw_cfg.c file. This will allow other X86-machine
to reuse these functions.
Suggested-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190818225414.22590-16-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Now that the pc_build_feature_control_file() function has been
refactored to not depend of PC specific types, rename it to a
more generic name.
Suggested-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190818225414.22590-15-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Let the pc_build_feature_control_file() function take a generic MachineState
argument.
Suggested-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190818225414.22590-14-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Pass the FWCfgState object by argument, this will
allow us to remove the PCMachineState argument later.
Suggested-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190818225414.22590-13-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Now that the pc_build_smbios() function has been refactored to not
depend of PC specific types, rename it to a more generic name.
Suggested-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190818225414.22590-12-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Let the pc_build_smbios() function take a generic MachineState
argument.
Suggested-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190818225414.22590-11-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Pass the FWCfgState object by argument, this will
allow us to remove the PCMachineState argument later.
Suggested-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190818225414.22590-10-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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fw_cfg_arch_create
In the previous commit we removed the last access to PCMachineState.
Replace it with a generic MachineState argument and use it to retrieve
the CPUArchIdList.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Pass the CPUArchIdList array by argument, this will
allow us to remove the PCMachineState argument later.
Suggested-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190818225414.22590-8-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Pass the apic_id_limit value by argument, this will
allow us to remove the PCMachineState argument later.
Suggested-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190818225414.22590-7-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The boot_cpus is used once. Pass it by argument, this will
allow us to remove the PCMachineState argument later.
Suggested-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190818225414.22590-6-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The bochs_bios_init() function is not restricted to the Bochs
BIOS and is useful to other BIOS.
Since it is not specific to the PC machine, and can be reused
by other machines of the X86 architecture, rename it as
fw_cfg_arch_create().
Suggested-by: Samuel Ortiz <sameo@linux.intel.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190818225414.22590-5-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The address_space_memory variable is used once.
Use it in place and remove the argument.
Suggested-by: Samuel Ortiz <sameo@linux.intel.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190818225414.22590-4-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Suggested-by: Samuel Ortiz <sameo@linux.intel.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190818225414.22590-3-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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To be able to extract the e820* code out of this file (in the next
patch), access e820_entries with its correct helper.
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190818225414.22590-2-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Throttling thread sleeps in VCPU thread. For high throttle percentage
this sleep is more than 10ms. E.g. for 60% - 15ms, for 99% - 990ms.
vm_stop() kicks all VCPUs and waits for them. It's called at the end of
migration and because of the long sleep the migration downtime might be
more than 100ms even for downtime-limit 1ms.
Use qemu_cond_timedwait for high percentage to wake up during vm_stop.
Signed-off-by: Yury Kotov <yury-kotov@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190909131335.16848-3-yury-kotov@yandex-team.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The new function is needed to implement conditional sleep for CPU
throttling. It's possible to reuse qemu_sem_timedwait, but it's more
difficult than just add qemu_cond_timedwait.
Also moved compute_abs_deadline function up the code to reuse it in
qemu_cond_timedwait_impl win32.
Signed-off-by: Yury Kotov <yury-kotov@yandex-team.ru>
Message-Id: <20190909131335.16848-2-yury-kotov@yandex-team.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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devend_memop can rely on the fact that the result is always either
0 or MO_BSWAP, corresponding respectively to host endianness and
the opposite. Native (target) endianness in turn can be either
the host endianness, in which case MO_BSWAP is only returned for
host-opposite endianness, or the opposite, in which case 0 is only
returned for host endianness.
With this in mind, devend_memop can be compiled as a setcond+shift
for every target. Do this and, while at it, move it to
include/exec/memory.h since !NEED_CPU_H files do not (and should not)
need it.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Neither stat(2) nor lseek(2) report the size of Linux devdax pmem
character device nodes. Commit 314aec4a6e06844937f1677f6cba21981005f389
("hostmem-file: reject invalid pmem file sizes") added code to
hostmem-file.c to fetch the size from sysfs and compare against the
user-provided size=NUM parameter:
if (backend->size > size) {
error_setg(errp, "size property %" PRIu64 " is larger than "
"pmem file \"%s\" size %" PRIu64, backend->size,
fb->mem_path, size);
return;
}
It turns out that exec.c:qemu_ram_alloc_from_fd() already has an
equivalent size check but it skips devdax pmem character devices because
lseek(2) returns 0:
if (file_size > 0 && file_size < size) {
error_setg(errp, "backing store %s size 0x%" PRIx64
" does not match 'size' option 0x" RAM_ADDR_FMT,
mem_path, file_size, size);
return NULL;
}
This patch moves the devdax pmem file size code into get_file_size() so
that we check the memory size in a single place:
qemu_ram_alloc_from_fd(). This simplifies the code and makes it more
general.
This also fixes the problem that hostmem-file only checks the devdax
pmem file size when the pmem=on parameter is given. An unchecked
size=NUM parameter can lead to SIGBUS in QEMU so we must always fetch
the file size for Linux devdax pmem character device nodes.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20190830093056.12572-1-stefanha@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This patch fixes a possible integer overflow when we calculate
the total size of ELF segments loaded.
Reported-by: Coverity (CID 1405299)
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20190910124828.39794-1-sgarzare@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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CONFIG_ACPI_PCI is a hard requirement of acpi-build.c, which is built
unconditionally for x86 target. Putting it in default-configs/ suggests
that it can be easily disabled, which isn't true.
Relocate the symbol with the other acpi-build.c requirements, under
'config PC'. This is similar to what is done for the arm 'virt' machine
type and CONFIG_ACPI_PCI
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Message-Id: <e73e6edff68fd30d69c6a1d02c9ef9192f773c63.1568049871.git.crobinso@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The CharSocketServerTestConfig and CharSocketClientTestConfig
objects escape after they are passed to g_test_add_data_func,
but they cease existing after the scope that defines them is
closed. Make them static to fix this issue.
Fixes: e7b6ba4186f243f149b0d8cddc129fe681ba3912
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Adjust after the rST conversion and consequent renaming.
Fixes: 336a7451e8803c21a2da6e7d1eca8cfb8e8b219a
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The maximum level is defined as P_L2_LEVELS and skip is defined with 6
bits, which means if P_L2_LEVELS < (1 << 6), skip never exceeds the
boundary.
Since this check is between two constants, which leverages compiler
to optimize the code based on different configuration.
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190321082555.21118-7-richardw.yang@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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skip is defined with 6 bits. So the maximum value should be (1 << 6).
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190321082555.21118-6-richardw.yang@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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In subpage_init(), we will set subpage->sub_section to
PHYS_SECTION_UNASSIGNED by subpage_register. Since
PHYS_SECTION_UNASSIGNED is defined to be 0, and we allocate subpage with
g_malloc0, this means subpage->sub_section is already initialized to 0.
This patch removes the redundant setup for a new subpage and also fix
the code style.
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190321082555.21118-5-richardw.yang@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The purpose of these two MAX here is to get the maximum of these three
variables:
A: map->nodes_nb + nodes
B: map->nodes_nb_alloc
C: alloc_hint
We can write it like MAX(A, B, C). Since the if condition says A > B,
this means MAX(A, B, C) = MAX(A, C).
This patch just simplify the calculation a bit.
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190321082555.21118-4-richardw.yang@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Function phys_page_set() and phys_page_set_level() 's argument *nb*
stands for number of pages to set instead of hardware address.
This would be more proper to use uint64_t instead of hwaddr for its
type.
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190321082555.21118-2-richardw.yang@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Allow guest reads CORE cstate when exposing host CPU power management capabilities
to the guest. PKG cstate is restricted to avoid a guest to get the whole package
information in multi-tenant scenario.
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1563154124-18579-1-git-send-email-wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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into staging
Block patches:
- Fix for block jobs when used with I/O threads
- Fix for a corruption when using qcow2's LUKS encryption mode
- cURL fix
- check-block.sh cleanups (for make check)
- Refactoring
# gpg: Signature made Mon 16 Sep 2019 14:41:15 BST
# gpg: using RSA key 91BEB60A30DB3E8857D11829F407DB0061D5CF40
# gpg: issuer "mreitz@redhat.com"
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>" [full]
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1 1829 F407 DB00 61D5 CF40
* remotes/maxreitz/tags/pull-block-2019-09-16:
qemu-iotests: Add test for bz #1745922
block/qcow2: refactor encryption code
block/qcow2: Fix corruption introduced by commit 8ac0f15f335
blockjob: update nodes head while removing all bdrv
curl: Check curl_multi_add_handle()'s return code
curl: Handle success in multi_check_completion
curl: Report only ready sockets
curl: Pass CURLSocket to curl_multi_do()
curl: Check completion in curl_multi_do()
curl: Keep *socket until the end of curl_sock_cb()
curl: Keep pointer to the CURLState in CURLSocket
tests/qemu-iotests: Fix qemu-io related output in 026.out.nocache
tests/Makefile: Do not print the name of the check-block.sh shell script
tests/qemu-iotests/check: Replace "tests" with "iotests" in final status text
block: Remove unused masks
block: Use QEMU_IS_ALIGNED
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Tested-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190915203655.21638-4-mlevitsk@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
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* Change the qcow2_co_{encrypt|decrypt} to just receive full host and
guest offsets and use this function directly instead of calling
do_perform_cow_encrypt (which is removed by that patch).
* Adjust qcow2_co_encdec to take full host and guest offsets as well.
* Document the qcow2_co_{encrypt|decrypt} arguments
to prevent the bug fixed in former commit from hopefully
happening again.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-id: 20190915203655.21638-3-mlevitsk@redhat.com
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
[mreitz: Let perform_cow() return the error value returned by
qcow2_co_encrypt(), as proposed by Vladimir]
Signed-off-by: Max Reitz <mreitz@redhat.com>
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This fixes subtle corruption introduced by luks threaded encryption
in commit 8ac0f15f335
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1745922
The corruption happens when we do a write that
* writes to two or more unallocated clusters at once
* doesn't fully cover the first sector
* doesn't fully cover the last sector
* uses luks encryption
In this case, when allocating the new clusters we COW both areas
prior to the write and after the write, and we encrypt them.
The above mentioned commit accidentally made it so we encrypt the
second COW area using the physical cluster offset of the first area.
The problem is that offset_in_cluster in do_perform_cow_encrypt
can be larger that the cluster size, thus cluster_offset
will no longer point to the start of the cluster at which encrypted
area starts.
Next patch in this series will refactor the code to avoid all these
assumptions.
In the bugreport that was triggered by rebasing a luks image to new,
zero filled base, which lot of such writes, and causes some files
with zero areas to contain garbage there instead.
But as described above it can happen elsewhere as well
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190915203655.21638-2-mlevitsk@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
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