kernel.git/arch/s390/tools, branch linux-5.0.y

kbuild: use assignment instead of define ... endef for filechk_* rules

2019-01-06T01:22:35Z

You do not have to use define ... endef for filechk_* rules. For simple cases, the use of assignment looks cleaner, IMHO. I updated the usage for scripts/Kbuild.include in case somebody misunderstands the 'define ... endif' is the requirement. Signed-off-by: Masahiro Yamada Acked-by: Heiko Carstens

kbuild: change filechk to surround the given command with { }

2019-01-06T00:46:51Z

filechk_* rules often consist of multiple 'echo' lines. They must be surrounded with { } or ( ) to work correctly. Otherwise, only the string from the last 'echo' would be written into the target. Let's take care of that in the 'filechk' in scripts/Kbuild.include to clean up filechk_* rules. Signed-off-by: Masahiro Yamada

KVM: s390: CPU model support for AP virtualization

2018-09-28T13:50:11Z

Introduces two new CPU model facilities to support AP virtualization for KVM guests: 1. AP Query Configuration Information (QCI) facility is installed. This is indicated by setting facilities bit 12 for the guest. The kernel will not enable this facility for the guest if it is not set on the host. If this facility is not set for the KVM guest, then only APQNs with an APQI less than 16 will be used by a Linux guest regardless of the matrix configuration for the virtual machine. This is a limitation of the Linux AP bus. 2. AP Facilities Test facility (APFT) is installed. This is indicated by setting facilities bit 15 for the guest. The kernel will not enable this facility for the guest if it is not set on the host. If this facility is not set for the KVM guest, then no AP devices will be available to the guest regardless of the guest's matrix configuration for the virtual machine. This is a limitation of the Linux AP bus. Signed-off-by: Tony Krowiak Reviewed-by: Christian Borntraeger Reviewed-by: Halil Pasic Reviewed-by: David Hildenbrand Tested-by: Michael Mueller Tested-by: Farhan Ali Acked-by: Cornelia Huck Message-Id: <20180925231641.4954-26-akrowiak@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2018-08-19T17:38:36Z

Pull first set of KVM updates from Paolo Bonzini: "PPC: - minor code cleanups x86: - PCID emulation and CR3 caching for shadow page tables - nested VMX live migration - nested VMCS shadowing - optimized IPI hypercall - some optimizations ARM will come next week" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (85 commits) kvm: x86: Set highest physical address bits in non-present/reserved SPTEs KVM/x86: Use CC_SET()/CC_OUT in arch/x86/kvm/vmx.c KVM: X86: Implement PV IPIs in linux guest KVM: X86: Add kvm hypervisor init time platform setup callback KVM: X86: Implement "send IPI" hypercall KVM/x86: Move X86_CR4_OSXSAVE check into kvm_valid_sregs() KVM: x86: Skip pae_root shadow allocation if tdp enabled KVM/MMU: Combine flushing remote tlb in mmu_set_spte() KVM: vmx: skip VMWRITE of HOST_{FS,GS}_BASE when possible KVM: vmx: skip VMWRITE of HOST_{FS,GS}_SEL when possible KVM: vmx: always initialize HOST_{FS,GS}_BASE to zero during setup KVM: vmx: move struct host_state usage to struct loaded_vmcs KVM: vmx: compute need to reload FS/GS/LDT on demand KVM: nVMX: remove a misleading comment regarding vmcs02 fields KVM: vmx: rename __vmx_load_host_state() and vmx_save_host_state() KVM: vmx: add dedicated utility to access guest's kernel_gs_base KVM: vmx: track host_state.loaded using a loaded_vmcs pointer KVM: vmx: refactor segmentation code in vmx_save_host_state() kvm: nVMX: Fix fault priority for VMX operations kvm: nVMX: Fix fault vector for VMX operation at CPL > 0 ...

KVM: s390: add etoken support for guests

2018-07-19T10:59:36Z

We want to provide facility 156 (etoken facility) to our guests. This includes migration support (via sync regs) and VSIE changes. The tokens are being reset on clear reset. This has to be implemented by userspace (via sync regs). Signed-off-by: Christian Borntraeger Reviewed-by: David Hildenbrand Acked-by: Cornelia Huck

s390/tools: fix gcc 8 stringop-truncation warnings

2018-07-02T09:25:05Z

Replace strncpy which has been used to copy a substring into buf without NUL-termination with memcpy to avoid the following gcc 8 warnings: arch/s390/tools/gen_opcode_table.c: In function ‘add_to_group.isra.4’: arch/s390/tools/gen_opcode_table.c:260:2: warning: ‘strncpy’ output may be truncated copying 2 bytes from a string of length 19 [-Wstringop-truncation] strncpy(group->opcode, insn->opcode, 2); In function ‘print_opcode_table’, inlined from ‘main’ at arch/s390/tools/gen_opcode_table.c:333:2: arch/s390/tools/gen_opcode_table.c:286:4: warning: ‘strncpy’ output may be truncated copying 2 bytes from a string of length 19 [-Wstringop-truncation] strncpy(opcode, insn->opcode, 2); Reviewed-by: Heiko Carstens Signed-off-by: Vasily Gorbik Signed-off-by: Martin Schwidefsky

KVM: s390: implement CPU model only facilities

2018-03-09T09:44:17Z

Some facilities should only be provided to the guest, if they are enabled by a CPU model. This allows us to avoid capabilities and to simply fall back to the cpumodel for deciding about a facility without enabling it for older QEMUs or QEMUs without a CPU model. Reviewed-by: David Hildenbrand Reviewed-by: Cornelia Huck Signed-off-by: Christian Borntraeger

s390/tools: generate header files in arch/s390/include/generated/

2018-01-23T06:36:53Z

Previously, the generated dis.h and facilities.h header files have been stored in include/generated. Because they are s390 specific, store them in the arch/s390/include/generated/asm/ directory. Also update references to the header files respectively. To prevent name collisions with those header files in asm/ that include the generated ones, rename the generated headers files and add an -defs suffix. Also update the generators to create the ifdef guards respectively. Signed-off-by: Hendrik Brueckner Acked-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390/disassembler: add generated gen_opcode_table tool to .gitignore

2018-01-23T06:36:45Z

Fixes: 8bc1e4ec79c0 ("s390/disassembler: generate opcode tables from text file") Signed-off-by: Hendrik Brueckner

s390: add a few more SPDX identifiers

2017-12-05T06:51:09Z

Add the correct SPDX license to a few more files under arch/s390 and drivers/s390 which have been missed to far. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. Signed-off-by: Martin Schwidefsky