- 03 Apr, 2018 40 commits
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Shuah Khan authored
BugLink: http://bugs.launchpad.net/bugs/1756121 Upstream commit 1c9de5bf ("usbip: vhci-hcd: Add USB3 SuperSpeed support") vhci_hcd clears all the bits port_status bits instead of clearing just the USB_PORT_STAT_POWER bit when it handles ClearPortFeature: USB_PORT_FEAT_POWER. This causes vhci_hcd attach to fail in a bad state, leaving device unusable by the client. The device is still attached and however client can't use it. The problem was fixed as part of larger change to add USB3 Super Speed support. This patch isolates the one line fix to clear the USB_PORT_STAT_POWER from the original patch. Signed-off-by:
Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Juerg Haefliger <juergh@canonical.com> Signed-off-by:
Stefan Bader <stefan.bader@canonical.com>
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Jesse Chan authored
BugLink: http://bugs.launchpad.net/bugs/1756121 commit 0cab20ce upstream. This change resolves a new compile-time warning when built as a loadable module: WARNING: modpost: missing MODULE_LICENSE() in sound/soc/codecs/snd-soc-pcm512x-spi.o see include/linux/module.h for more information This adds the license as "GPL v2", which matches the header of the file. MODULE_DESCRIPTION and MODULE_AUTHOR are also added. Signed-off-by:
Jesse Chan <jc@linux.com> Signed-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
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Michael Ellerman authored
CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 commit 236003e6 upstream. Expose the state of the RFI flush (enabled/disabled) via debugfs, and allow it to be enabled/disabled at runtime. eg: $ cat /sys/kernel/debug/powerpc/rfi_flush 1 $ echo 0 > /sys/kernel/debug/powerpc/rfi_flush $ cat /sys/kernel/debug/powerpc/rfi_flush 0 Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au> Reviewed-by:
Nicholas Piggin <npiggin@gmail.com> Signed-off-by:
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Michael Ellerman authored
CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 commit fd6e440f upstream. The recent commit 87590ce6 ("sysfs/cpu: Add vulnerability folder") added a generic folder and set of files for reporting information on CPU vulnerabilities. One of those was for meltdown: /sys/devices/system/cpu/vulnerabilities/meltdown This commit wires up that file for 64-bit Book3S powerpc. For now we default to "Vulnerable" unless the RFI flush is enabled. That may not actually be true on all hardware, further patches will refine the reporting based on the CPU/platform etc. But for now we default to being pessimists. Signed-off-by:
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Oliver O'Halloran authored
CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 commit 6e032b35 upstream. New device-tree properties are available which tell the hypervisor settings related to the RFI flush. Use them to determine the appropriate flush instruction to use, and whether the flush is required. Signed-off-by:
Oliver O'Halloran <oohall@gmail.com> Signed-off-by:
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Michael Neuling authored
CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 commit 8989d568 upstream. A new hypervisor call is available which tells the guest settings related to the RFI flush. Use it to query the appropriate flush instruction(s), and whether the flush is required. Signed-off-by:
Michael Neuling <mikey@neuling.org> Signed-off-by:
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Michael Ellerman authored
CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 commit bc9c9304 upstream. Because there may be some performance overhead of the RFI flush, add kernel command line options to disable it. We add a sensibly named 'no_rfi_flush' option, but we also hijack the x86 option 'nopti'. The RFI flush is not the same as KPTI, but if we see 'nopti' we can guess that the user is trying to avoid any overhead of Meltdown mitigations, and it means we don't have to educate every one about a different command line option. Signed-off-by:
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Michael Ellerman authored
CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 commit aa8a5e00 upstream. On some CPUs we can prevent the Meltdown vulnerability by flushing the L1-D cache on exit from kernel to user mode, and from hypervisor to guest. This is known to be the case on at least Power7, Power8 and Power9. At this time we do not know the status of the vulnerability on other CPUs such as the 970 (Apple G5), pasemi CPUs (AmigaOne X1000) or Freescale CPUs. As more information comes to light we can enable this, or other mechanisms on those CPUs. The vulnerability occurs when the load of an architecturally inaccessible memory region (eg. userspace load of kernel memory) is speculatively executed to the point where its result can influence the address of a subsequent speculatively executed load. In order for that to happen, the first load must hit in the L1, because before the load is sent to the L2 the permission check is performed. Therefore if no kernel addresses hit in the L1 the vulnerability can not occur. We can ensure that is the case by flushing the L1 whenever we return to userspace. Similarly for hypervisor vs guest. In order to flush the L1-D cache on exit, we add a section of nops at each (h)rfi location that returns to a lower privileged context, and patch that with some sequence. Newer firmwares are able to advertise to us that there is a special nop instruction that flushes the L1-D. If we do not see that advertised, we fall back to doing a displacement flush in software. For guest kernels we support migration between some CPU versions, and different CPUs may use different flush instructions. So that we are prepared to migrate to a machine with a different flush instruction activated, we may have to patch more than one flush instruction at boot if the hypervisor tells us to. In the end this patch is mostly the work of Nicholas Piggin and Michael Ellerman. However a cast of thousands contributed to analysis of the issue, earlier versions of the patch, back ports testing etc. Many thanks to all of them. Tested-by:
Jon Masters <jcm@redhat.com> Signed-off-by:
Balbir Singh <bsingharora@gmail.com> Signed-off-by:
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Nicholas Piggin authored
CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 commit c7305645 upstream. In the SLB miss handler we may be returning to user or kernel. We need to add a check early on and save the result in the cr4 register, and then we bifurcate the return path based on that. Signed-off-by:
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Nicholas Piggin authored
CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 commit b8e90cb7 upstream. In the syscall exit path we may be returning to user or kernel context. We already have a test for that, because we conditionally restore r13. So use that existing test and branch, and bifurcate the return based on that. Signed-off-by:
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Nicholas Piggin authored
CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 commit a08f828c upstream. Similar to the syscall return path, in fast_exception_return we may be returning to user or kernel context. We already have a test for that, because we conditionally restore r13. So use that existing test and branch, and bifurcate the return based on that. Signed-off-by:
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Nicholas Piggin authored
CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 commit 222f20f1 upstream. This commit does simple conversions of rfi/rfid to the new macros that include the expected destination context. By simple we mean cases where there is a single well known destination context, and it's simply a matter of substituting the instruction for the appropriate macro. Signed-off-by:
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Nicholas Piggin authored
CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 commit 50e51c13 upstream. The rfid/hrfid ((Hypervisor) Return From Interrupt) instruction is used for switching from the kernel to userspace, and from the hypervisor to the guest kernel. However it can and is also used for other transitions, eg. from real mode kernel code to virtual mode kernel code, and it's not always clear from the code what the destination context is. To make it clearer when reading the code, add macros which encode the expected destination context. Signed-off-by:
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Michael Neuling authored
CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 commit 191eccb1 upstream. A new hypervisor call has been defined to communicate various characteristics of the CPU to guests. Add definitions for the hcall number, flags and a wrapper function. Signed-off-by:
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Alan Modra authored
BugLink: http://bugs.launchpad.net/bugs/1756121 commit c153693d upstream. PowerPC64 uses the symbol .TOC. much as other targets use _GLOBAL_OFFSET_TABLE_. It identifies the value of the GOT pointer (or in powerpc parlance, the TOC pointer). Global offset tables are generally local to an executable or shared library, or in the kernel, module. Thus it does not make sense for a module to resolve a relocation against .TOC. to the kernel's .TOC. value. A module has its own .TOC., and indeed the powerpc64 module relocation processing ignores the kernel value of .TOC. and instead calculates a module-local value. This patch removes code involved in exporting the kernel .TOC., tweaks modpost to ignore an undefined .TOC., and the module loader to twiddle the section symbol so that .TOC. isn't seen as undefined. Note that if the kernel was compiled with -msingle-pic-base then ELFv2 would not have function global entry code setting up r2. In that case the module call stubs would need to be modified to set up r2 using the kernel .TOC. value, requiring some of this code to be reinstated. mpe: Furthermore a change in binutils master (not yet released) causes the current way we handle the TOC to no longer work when building with MODVERSIONS=y and RELOCATABLE=n. The symptom is that modules can not be loaded due to there being no version found for TOC. Signed-off-by:
Alan Modra <amodra@gmail.com> Signed-off-by:
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Benjamin Herrenschmidt authored
BugLink: http://bugs.launchpad.net/bugs/1756121 commit 5a69aec9 upstream. VSX uses a combination of the old vector registers, the old FP registers and new "second halves" of the FP registers. Thus when we need to see the VSX state in the thread struct (flush_vsx_to_thread()) or when we'll use the VSX in the kernel (enable_kernel_vsx()) we need to ensure they are all flushed into the thread struct if either of them is individually enabled. Unfortunately we only tested if the whole VSX was enabled, not if they were individually enabled. Fixes: 72cd7b44 ("powerpc: Uncomment and make enable_kernel_vsx() routine available") Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> [mpe: Backported due to changed context] Signed-off-by:
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Oliver O'Halloran authored
BugLink: http://bugs.launchpad.net/bugs/1756121 commit 8f5f525d upstream. When the kernel is compiled to use 64bit ABIv2 the _GLOBAL() macro does not include a global entry point. A function's global entry point is used when the function is called from a different TOC context and in the kernel this typically means a call from a module into the vmlinux (or vice-versa). There are a few exported asm functions declared with _GLOBAL() and calling them from a module will likely crash the kernel since any TOC relative load will yield garbage. flush_icache_range() and flush_dcache_range() are both exported to modules, and use the TOC, so must use _GLOBAL_TOC(). Fixes: 721aeaa9 ("powerpc: Build little endian ppc64 kernel with ABIv2") Signed-off-by:
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Naveen N. Rao authored
BugLink: http://bugs.launchpad.net/bugs/1756121 commit 844e3be4 upstream. Classic BPF JIT was never ported completely to work on little endian powerpc. However, it can be enabled and will crash the system when used. As such, disable use of BPF JIT on ppc64le. Fixes: 7c105b63 ("powerpc: Add CONFIG_CPU_LITTLE_ENDIAN kernel config option.") Reported-by:
Thadeu Lima de Souza Cascardo <cascardo@redhat.com> Signed-off-by:
Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Acked-by:
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Juerg Haefliger authored
This reverts commit 76b01258. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit is provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit 8319f6cd. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit is provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit 03529808. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit is provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit 341c0f15. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit is provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit dad6dc82. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit is provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit b9bc93cd. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit is provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit 2d94edf3. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit is provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit 0929d8b8. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit is provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit e1f3564b. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit is provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit 00d9e152. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit is provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit 313e806c. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit is provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit 5dcadca3. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit is provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit d585250a. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit is provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit 323c02b0. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121Signed-off-by:
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Juerg Haefliger authored
Revert "UBUNTU: SAUCE: Remove setup.h include file otherwise compilation complains about missing header file." This reverts commit 4fc2e0b5. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121Signed-off-by:
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Juerg Haefliger authored
This reverts commit cab09201. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit will be provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit ee71154e. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit will be provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit 88424261. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit will be provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit c049d338. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit will be provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit 1a65b15b. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit will be provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit e82cad5f. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit will be provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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Juerg Haefliger authored
This reverts commit d275a2d6. CVE-2017-5754 BugLink: http://bugs.launchpad.net/bugs/1756121 The functionality of this commit will be provided by the following upstream patch series: * powerpc/64s: Allow control of RFI flush via debugfs * powerpc/64s: Wire up cpu_show_meltdown() * powerpc/powernv: Check device-tree for RFI flush settings * powerpc/pseries: Query hypervisor for RFI flush settings * powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti * powerpc/64s: Add support for RFI flush of L1-D cache * powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL * powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL * powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL * powerpc/64s: Simple RFI macro conversions * powerpc/64: Add macros for annotating the destination of rfid/hrfid * powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Signed-off-by:
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