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2016-07-22Merge "Restore the non_hz_full"Yunhong Jiang1-2/+8
2016-07-22Merge "Creation of QEMU(rpm and debian builds)"Jiang, Yunhong6-0/+156
2016-07-22Merge "Add the "timers: do not raise softirq unconditionally" temporarily"Yunhong Jiang2-8/+29
2016-07-21Restore the non_hz_fullYunhong Jiang1-2/+8
Please refer to http://comments.gmane.org/gmane.linux.kernel/1891417, the last two mails on this discussion. The non_hz_full is important for RT, so take it back temporarily. Unluckily I didn't find the corresponding reverting patch on the RT tree. Upstream status: pending Change-Id: I2748a8f9b7a98ef2185a1da60089984432393eff Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
2016-07-21Add the "timers: do not raise softirq unconditionally" temporarilyYunhong Jiang2-8/+29
This patch enable the nohz_full and is important for RT. Bring it back temporarily, while waiting for more work on RT community. Please refer to https://lkml.org/lkml/2015/3/17/783 for more information of the revert. A little rebase needed because it's reverted on old code base. Please notice that we change the rt_mutex_trylock() so that we can get the tvec_base lock there. This is sure to be wrong, and should be fixed cleanly. And that's the major reason the original patch are reverted on the upstream RT linux. Will discuss with upstream on how to achieve the solution. Upstream status: pending Change-Id: I2747e087faf4145b69b800a60b8d9414bc71e206 Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
2016-07-21Merge "KVM: nVMX: keep preemption timer enabled during L2 execution"Jiang, Yunhong1-2/+13
2016-07-21Merge "KVM: nVMX: avoid incorrect preemption timer vmexit in nested guest"Jiang, Yunhong1-0/+2
2016-07-21Merge "KVM: VMX: reflect broken preemption timer in vmcs_config"Jiang, Yunhong1-3/+3
2016-07-21Merge "KVM: vmx: fix missed cancellation of TSC deadline timer"Jiang, Yunhong1-24/+24
2016-07-21Merge "KVM: x86: introduce cancel_hv_tscdeadline"Jiang, Yunhong1-8/+10
2016-07-21Merge "KVM: vmx: fix underflow in TSC deadline calculation"Jiang, Yunhong1-3/+3
2016-07-21Merge "kvm: vmx: hook preemption timer support"Yunhong Jiang3-2/+183
2016-07-21Merge "kvm: vmx: rename vmx_pre/post_block to pi_pre/post_block"Jiang, Yunhong1-2/+15
2016-07-21Merge "KVM: x86: support using the vmx preemption timer for tsc deadline timer"Jiang, Yunhong5-1/+100
2016-07-21Merge "kvm: lapic: separate start_sw_tscdeadline from start_apic_timer"Jiang, Yunhong1-26/+31
2016-07-21Creation of QEMU(rpm and debian builds)Swati Sharma6-0/+156
This includes the scripts that are added to create qemu-rpm and qemu-debian builds for KVM4NFV. Co-Authored-By: Gundarapu Reddy <reddyx.gundarapu@intel.com> Signed-off-by: Swati Sharma <swatix.sharma@intel.com>
2016-07-19Merge "Update fuel plugin builder installation"Jiang, Yunhong1-9/+3
2016-07-18KVM: nVMX: keep preemption timer enabled during L2 executionPaolo Bonzini1-2/+13
Because the vmcs12 preemption timer is emulated through a separate hrtimer, we can keep on using the preemption timer in the vmcs02 to emulare L1's TSC deadline timer. However, the corresponding bit in the pin-based execution control field must be kept consistent between vmcs01 and vmcs02. On vmentry we copy it into the vmcs02; on vmexit the preemption timer must be disabled in the vmcs01 if a preemption timer vmexit happened while in guest mode. The preemption timer value in the vmcs02 is set by vmx_vcpu_run, so it need not be considered in prepare_vmcs02. Cc: Yunhong Jiang <yunhong.jiang@intel.com> Cc: Haozhong Zhang <haozhong.zhang@intel.com> Tested-by: Wanpeng Li <kernellwp@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Change-Id: Iffaea7689d4e653dc6224a6f05c6e5ba2fb5c8a8 upstream-status: backport Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
2016-07-18KVM: nVMX: avoid incorrect preemption timer vmexit in nested guestWanpeng Li1-0/+2
The preemption timer for nested VMX is emulated by hrtimer which is started on L2 entry, stopped on L2 exit and evaluated via the check_nested_events hook. However, nested_vmx_exit_handled is always returning true for preemption timer vmexit. Then, the L1 preemption timer vmexit is captured and be treated as a L2 preemption timer vmexit, causing NULL pointer dereferences or worse in the L1 guest's vmexit handler: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [< (null)>] (null) PGD 0 Oops: 0010 [#1] SMP Call Trace: ? kvm_lapic_expired_hv_timer+0x47/0x90 [kvm] handle_preemption_timer+0xe/0x20 [kvm_intel] vmx_handle_exit+0x169/0x15a0 [kvm_intel] ? kvm_arch_vcpu_ioctl_run+0xd5d/0x19d0 [kvm] kvm_arch_vcpu_ioctl_run+0xdee/0x19d0 [kvm] ? kvm_arch_vcpu_ioctl_run+0xd5d/0x19d0 [kvm] ? vcpu_load+0x1c/0x60 [kvm] ? kvm_arch_vcpu_load+0x57/0x260 [kvm] kvm_vcpu_ioctl+0x2d3/0x7c0 [kvm] do_vfs_ioctl+0x96/0x6a0 ? __fget_light+0x2a/0x90 SyS_ioctl+0x79/0x90 do_syscall_64+0x68/0x180 entry_SYSCALL64_slow_path+0x25/0x25 Code: Bad RIP value. RIP [< (null)>] (null) RSP <ffff8800b5263c48> CR2: 0000000000000000 ---[ end trace 9c70c48b1a2bc66e ]--- This can be reproduced readily by preemption timer enabled on L0 and disabled on L1. Return false since preemption timer vmexits must never be reflected to L2. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Yunhong Jiang <yunhong.jiang@intel.com> Cc: Jan Kiszka <jan.kiszka@siemens.com> Cc: Haozhong Zhang <haozhong.zhang@intel.com> Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Change-Id: Iaffcd503666879e8157c8559876330110a66e5c4 upstream-status: backport Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
2016-07-18KVM: VMX: reflect broken preemption timer in vmcs_configPaolo Bonzini1-3/+3
Simplify cpu_has_vmx_preemption_timer. This is consistent with the rest of setup_vmcs_config and preparatory for the next patch. Tested-by: Wanpeng Li <kernellwp@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Change-Id: I3b33a881c5e47d5d3046e28374d0b0ca363ffad7 upstream-status: backport Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
2016-07-18KVM: vmx: fix missed cancellation of TSC deadline timerWanpeng Li1-24/+24
INFO: rcu_sched detected stalls on CPUs/tasks: 1-...: (11800 GPs behind) idle=45d/140000000000000/0 softirq=0/0 fqs=21663 (detected by 0, t=65016 jiffies, g=11500, c=11499, q=719) Task dump for CPU 1: qemu-system-x86 R running task 0 3529 3525 0x00080808 ffff8802021791a0 ffff880212895040 0000000000000001 00007f1c2c00db40 ffff8801dd20fcd3 ffffc90002b98000 ffff8801dd20fc88 ffff8801dd20fcf8 0000000000000286 ffff8801dd2ac538 ffff8801dd20fcc0 ffffffffc06949c9 Call Trace: ? kvm_write_guest_cached+0xb9/0x160 [kvm] ? __delay+0xf/0x20 ? wait_lapic_expire+0x14a/0x200 [kvm] ? kvm_arch_vcpu_ioctl_run+0xcbe/0x1b00 [kvm] ? kvm_arch_vcpu_ioctl_run+0xe34/0x1b00 [kvm] ? kvm_vcpu_ioctl+0x2d3/0x7c0 [kvm] ? __fget+0x5/0x210 ? do_vfs_ioctl+0x96/0x6a0 ? __fget_light+0x2a/0x90 ? SyS_ioctl+0x79/0x90 ? do_syscall_64+0x7c/0x1e0 ? entry_SYSCALL64_slow_path+0x25/0x25 This can be reproduced readily by running a full dynticks guest(since hrtimer in guest is heavily used) w/ lapic_timer_advance disabled. If fail to program hardware preemption timer, we will fallback to hrtimer based method, however, a previous programmed preemption timer miss to cancel in this scenario which results in one hardware preemption timer and one hrtimer emulated tsc deadline timer run simultaneously. So sometimes the target guest deadline tsc is earlier than guest tsc, which leads to the computation in vmx_set_hv_timer can underflow and cause delta_tsc to be set a huge value, then host soft lockup as above. This patch fix it by cancelling the previous programmed preemption timer if there is once we failed to program the new preemption timer and fallback to hrtimer based method. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Change-Id: I8a2decefab743aecdfab676fb9267324bf42b848 upstream-status: backport Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
2016-07-18KVM: x86: introduce cancel_hv_tscdeadlineWanpeng Li1-8/+10
Introduce cancel_hv_tscdeadline() to encapsulate preemption timer cancel stuff. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Yunhong Jiang <yunhong.jiang@intel.com> Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Change-Id: Icc038176cbf361a9ecdf37ed3425108db57617f2 upstream-status: backport Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
2016-07-18KVM: vmx: fix underflow in TSC deadline calculationPaolo Bonzini1-3/+3
If the TSC deadline timer is programmed really close to the deadline or even in the past, the computation in vmx_set_hv_timer can underflow and cause delta_tsc to be set to a huge value. This generally results in vmx_set_hv_timer returning -ERANGE, but we can fix it by limiting delta_tsc to be positive or zero. Reported-by: Wanpeng Li <wanpeng.li@hotmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Change-Id: I12eea18c3ec648dbf782d7754b7b574d7d6aa92c upstream-status: backport Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
2016-07-18kvm: vmx: hook preemption timer supportYunhong Jiang3-2/+183
Hook the VMX preemption timer to the "hv timer" functionality added by the previous patch. This includes: checking if the feature is supported, if the feature is broken on the CPU, the hooks to setup/clean the VMX preemption timer, arming the timer on vmentry and handling the vmexit. A module parameter states if the VMX preemption timer should be utilized. Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com> [Move hv_deadline_tsc to struct vcpu_vmx, use -1 as the "unset" value. Put all VMX bits here. Enable it by default #yolo. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Change-Id: Icb8e0b853eedce3d52c394e510fa14d2cdd432e9 upstream-status: backport Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
2016-07-18kvm: vmx: rename vmx_pre/post_block to pi_pre/post_blockYunhong Jiang1-2/+15
Prepare to switch from preemption timer to hrtimer in the vmx_pre/post_block. Current functions are only for posted interrupt, rename them accordingly. upstream-status: backport Change-Id: Ie1dde9be21deeb661de095e07d6c29bcba2e7d73 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
2016-07-18KVM: x86: support using the vmx preemption timer for tsc deadline timerYunhong Jiang5-1/+100
The VMX preemption timer can be used to virtualize the TSC deadline timer. The VMX preemption timer is armed when the vCPU is running, and a VMExit will happen if the virtual TSC deadline timer expires. When the vCPU thread is blocked because of HLT, KVM will switch to use an hrtimer, and then go back to the VMX preemption timer when the vCPU thread is unblocked. This solution avoids the complex OS's hrtimer system, and the host timer interrupt handling cost, replacing them with a little math (for guest->host TSC and host TSC->preemption timer conversion) and a cheaper VMexit. This benefits latency for isolated pCPUs. [A word about performance... Yunhong reported a 30% reduction in average latency from cyclictest. I made a similar test with tscdeadline_latency from kvm-unit-tests, and measured - ~20 clock cycles loss (out of ~3200, so less than 1% but still statistically significant) in the worst case where the test halts just after programming the TSC deadline timer - ~800 clock cycles gain (25% reduction in latency) in the best case where the test busy waits. I removed the VMX bits from Yunhong's patch, to concentrate them in the next patch - Paolo] Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Change-Id: I4aa1ecfa3463d1cbfb317511b45d2074b33d9b6f upstream-status: backport Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
2016-07-18kvm: lapic: separate start_sw_tscdeadline from start_apic_timerYunhong Jiang1-26/+31
The function to start the tsc deadline timer virtualization will be used also by the pre_block hook when we use the preemption timer; change it to a separate function. No logic changes. upstream-status: backport Change-Id: Ie2fc19108c3252f8a299b17aba16c14aa8d31ae8 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
2016-07-15Fix the failure of launching instances in Horizondavidjchou1-3/+4
In the Mitaka version of OpenStack, Neutron agent uses connmark module to add rules into iptable. Enable this module in opnfv.config to fix the failure of launching instances in Horizon. Upstream status - NA Change-Id: I31f346198a5ba50e83d10210bb5b5e10baf825f3 Signed-off-by: davidjchou <david.j.chou@intel.com>
2016-07-07Update fuel plugin builder installationGuo Ruijing1-9/+3
Upstream status: N/A Change-Id: If27d36d8a7790723b9145ffe567d9bfed925e5ed Signed-off-by: Guo Ruijing <ruijing.guo@intel.com>
2016-06-20Rebase fuel-plugin for kvmfornfv to fuel 9.0davidjchou11-226/+122
1. Uplifit fuel-plugin for kvmfornfv to fuel 9.0 due to that fuel 9.0 will be the deployment tool of OPNFV Colorado release. 2. Fixed quirk for kernel. 3. Added all tools and libs for building OVS module. 4. Allow KVM developer to build fuel-plugin-kvm after they modify the kerenl code without commiting their change into the repo first. So, they can test their code change by fuel-plugin-kvm till they satisfy with their change, then commit to the repo. 5. The final code built into OPNFV fuel iso will depend on the commit ID for kvmfornfv speicifed in fuel for OPNFV source tree. Change-Id: Iaf9ff49c69df374d0757884cfdac4cccee3eebe4 Signed-off-by: davidjchou <david.j.chou@intel.com>
2016-06-06Move quirks out of build scriptDonald Dugger2-45/+44
Due to expediencyh concerns some quirk code was placed in the build script in order to get the Brahmaputra release out on time. These quirks don't belong in the script itself and, now that there is a mechanisms to applly arbitrary patch files during the build script, this patch moves that quirk code out to the separate patch file area. Upstream status - NA Change-Id: Ib8100eef00009bbaf0e16b28849821ef5878f9f5 Signed-off-by: Donald Dugger <n0ano@n0ano.com>
2016-06-06Merge "Update the files in fuel-plugin to match the upstream"Don Dugger4-8/+9
2016-06-03Update the files in fuel-plugin to match the upstreamdavidjchou4-8/+9
Since the upstream kvmfornfv kernel version and OVS changed, updated the related files in fuel-plugin, so it can build fuel-plugin-kvm with latest kvmfornfv kernel and OVS module. Upstream status: kvmfornfv kernel 4.4.6-rt14nfv Change-Id: I6a7c312f7527acae4d2de64c7b43da4fbec41504 Signed-off-by: davidjchou <david.j.chou@intel.com>
2016-06-03Merge "These changes are the raw update to qemu-2.6."Don Dugger4070-91121/+252483
2016-05-20Remove config file changes from build scriptDonald Dugger1-692/+0
These changes are no longer needed as they are now (correctly) incorporated in the actual config file in the source tree. Upstream status: NA Change-Id: Ide33453789338ba3f7692ca6108de89a4ac3c222 Signed-off-by: Don Dugger <n0ano@n0ano.com>
2016-05-19Merge "Build uio as module to fix initialization of i40e devices in bare ↵Jiang, Yunhong1-1/+1
metal execution of dpdk-16.04."
2016-05-18These changes are the raw update to qemu-2.6.José Pekkarinen4070-91121/+252483
Collission happened in the following patches: migration: do cleanup operation after completion(738df5b9) Bug fix.(1750c932f86) kvmclock: add a new function to update env->tsc.(b52baab2) The code provided by the patches was already in the upstreamed version. Change-Id: I3cc11841a6a76ae20887b2e245710199e1ea7f9a Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
2016-05-13Add patch to Linux 4.4 to support OVSDonald Dugger2-1/+260
Given that OVS doesn't support Linux 4.4 yet we need to add a patch to the OVS sources so that we can build a 4.4 version of the OVS loadable kernel module that works with the RT Linux 4.4 kernel used in OPNFV. The directory `patches/ovs' contains patches (currently only one) that are applied against the OVS tree. The Fuel build script is modified to apply all of the patches in this directory to the OVS tree. Then a working OVS KLM is created that is then inserted into the RT kernel DEB package so that the end result is an RT kernel that supports OVS. Upstream status: NA Change-Id: I361f92526fb4bcafbeab9ce21570202f4aad1632 Signed-off-by: Don Dugger <n0ano@n0ano.com>
2016-05-13Build uio as module to fix initialization of i40e devicesJosé Pekkarinen1-1/+1
in bare metal execution of dpdk-16.04. Upstream: NA. Change-Id: Ia98461b15348a667c4989dfe1399f0c5bc0f0c12 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
2016-05-05Merge "Reverted execution attribute of shell script files"Don Dugger3-0/+0
2016-05-05Merge "Add kernel modules required for OPNFV"Jiang, Yunhong1-130/+732
2016-05-03Reverted execution attribute of shell script filesdavidjchou3-0/+0
Reverted execution attribute of shell script files in fuel-plugin sub-dir. The execution attribute was lost when these files were commited inside fuel-plugin sub-dir, and the executtion attribute of these shell script files is necessary to the build of fuel-plugin-kvm. Upstream status: NA Change-Id: I0ac060a27c4a1570bff17864aa7db5b6b9edf732 Signed-off-by: davidjchou <david.j.chou@intel.com>
2016-05-03Create fuel kvm pluginGuo Ruijing13-0/+1303
Upstream status: NA In Brahmaputra release, KVM plugin functionality was bundled inside the fuel-plugin-qemu. In order for easy maintenance, the KVM plugin functionality would be separated from fuel-plugin-qemu and moved into an independent fuel-plugin-kvm and keep the source code here starting from Colorado release. Change-Id: Id89069234a4529cca40f1887e2d947378f928dd2 Signed-off-by: davidjchou <david.j.chou@intel.com> Signed-off-by: Guo Ruijing <ruijing.guo@intel.com>
2016-04-25Change PTL to raghuveer.reddy@intel.comAric Gardner1-2/+3
Change-Id: Id67d11079e738bc4180c395b86d56cfc81c3770f Signed-off-by: Aric Gardner <agardner@linuxfoundation.org>
2016-04-25Add kernel modules required for OPNFVDon Dugger1-130/+732
The OPNFV environment requires many kernel modules that are not part of the default RT kernel environment. This patch adds those modules back in. Upstream status: NA Change-Id: Id4e63f3d2dd3e19614e9e080adf1cdae9ab26ee1
2016-04-22Update opnfv kernel config for the new kernel 4.4.6-rt14.José Pekkarinen1-67/+237
This config file is based in the previous one, adding the changes needed in the config file for this new kernel version. It has been added in kernel support for CephFS. Upstream: NA. Change-Id: I1de8b4678bdfa81f4fc204f4a02d11f11cb5ae87 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
2016-04-13These changes are the raw update to linux-4.4.6-rt14. Kernel sourcesJosé Pekkarinen20902-780094/+2132422
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
2016-03-01Remove yang.z.zhang@intel.com as committerAric Gardner1-1/+1
Add jose.pekkarinen@nokia.com as committer RT Ticket: 19272, 19265 Change-Id: Ia49e92674f2da2feea53e08231bb4fdd6b54ca88 Signed-off-by: Aric Gardner <agardner@linuxfoundation.org>
2016-02-10Added license informationbrahmaputra.1.0stable/brahmaputraraghu4-1/+17
Upstream Status : Not Applicable For detalied license information please refer to https://wiki.opnfv.org/documentation#licencing_your_documentation Change-Id: Iacba57a9162b25abc474dbac236b4dee5f27544c
2016-01-28Merge "Remove the code to apply yardstick patch"Don Dugger1-3/+0