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Date: Tue, 11 Oct 2022 09:47:57 -0400
From: Paolo Bonzini <pbonzini@...hat.com>
To: torvalds@...ux-foundation.org
Cc: linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: [GIT PULL] Second batch of KVM changes for Linux 6.1
Linus,
The following changes since commit 394265079b6c271fdc191ac31b1ebfbee3dd6d63:
KVM: selftests: Compare insn opcodes directly in fix_hypercall_test (2022-09-30 06:38:02 -0400)
are available in the Git repository at:
https://git.kernel.org/pub/scm/virt/kvm/kvm.git tags/for-linus
for you to fetch changes up to e18d6152ff0f41b7f01f9817372022df04e0d354:
Merge tag 'kvm-riscv-6.1-1' of https://github.com/kvm-riscv/linux into HEAD (2022-10-03 15:33:43 -0400)
Main batch of ARM + RISC-V changes, and a few fixes and cleanups for x86 (PMU
virtualization and selftests).
There is a small conflict because the RISC-V pull request sorted isa_ext_arr
in alphabetical order, conflicting with Svinval support in this one. Linux
itself does not yet use Svinval instructions, but KVM does. The resolution
is after the diffstat for your reference.
----------------------------------------------------------------
ARM:
* Fixes for single-stepping in the presence of an async
exception as well as the preservation of PSTATE.SS
* Better handling of AArch32 ID registers on AArch64-only
systems
* Fixes for the dirty-ring API, allowing it to work on
architectures with relaxed memory ordering
* Advertise the new kvmarm mailing list
* Various minor cleanups and spelling fixes
RISC-V:
* Improved instruction encoding infrastructure for
instructions not yet supported by binutils
* Svinval support for both KVM Host and KVM Guest
* Zihintpause support for KVM Guest
* Zicbom support for KVM Guest
* Record number of signal exits as a VCPU stat
* Use generic guest entry infrastructure
x86:
* Misc PMU fixes and cleanups.
* selftests: fixes for Hyper-V hypercall
* selftests: fix nx_huge_pages_test on TDP-disabled hosts
* selftests: cleanups for fix_hypercall_test
----------------------------------------------------------------
Andrew Jones (7):
riscv: Add X register names to gpr-nums
riscv: Introduce support for defining instructions
riscv: KVM: Apply insn-def to hfence encodings
riscv: KVM: Apply insn-def to hlv encodings
RISC-V: KVM: Make ISA ext mappings explicit
RISC-V: KVM: Provide UAPI for Zicbom block size
RISC-V: KVM: Expose Zicbom to the guest
Anup Patel (3):
RISC-V: KVM: Change the SBI specification version to v1.0
RISC-V: KVM: Use Svinval for local TLB maintenance when available
RISC-V: KVM: Allow Guest use Svinval extension
David Matlack (3):
KVM: selftests: Tell the compiler that code after TEST_FAIL() is unreachable
KVM: selftests: Add helpers to read kvm_{intel,amd} boolean module parameters
KVM: selftests: Fix nx_huge_pages_test on TDP-disabled hosts
Elliot Berman (1):
KVM: arm64: Ignore kvm-arm.mode if !is_hyp_mode_available()
Gavin Shan (1):
KVM: arm64: vgic: Remove duplicate check in update_affinity_collection()
Jisheng Zhang (3):
RISC-V: KVM: Record number of signal exits as a vCPU stat
RISC-V: KVM: Use generic guest entry infrastructure
riscv: select HAVE_POSIX_CPU_TIMERS_TASK_WORK
Like Xu (6):
KVM: x86/pmu: Avoid setting BIT_ULL(-1) to pmu->host_cross_mapped_mask
KVM: x86/pmu: Don't generate PEBS records for emulated instructions
KVM: x86/pmu: Refactor PERF_GLOBAL_CTRL update helper for reuse by PEBS
KVM: x86/pmu: Avoid using PEBS perf_events for normal counters
KVM: x86/svm/pmu: Direct access pmu->gp_counter[] to implement amd_*_to_pmc()
KVM: x86/svm/pmu: Rewrite get_gp_pmc_amd() for more counters scalability
Marc Zyngier (12):
Merge branch kvm-arm64/aarch32-raz-idregs into kvmarm-master/next
Merge remote-tracking branch 'arm64/for-next/sysreg' into kvmarm-master/next
Merge branch kvm-arm64/single-step-async-exception into kvmarm-master/next
KVM: Use acquire/release semantics when accessing dirty ring GFN state
KVM: Add KVM_CAP_DIRTY_LOG_RING_ACQ_REL capability and config option
KVM: x86: Select CONFIG_HAVE_KVM_DIRTY_RING_ACQ_REL
KVM: Document weakly ordered architecture requirements for dirty ring
KVM: selftests: dirty-log: Upgrade flag accesses to acquire/release semantics
KVM: selftests: dirty-log: Use KVM_CAP_DIRTY_LOG_RING_ACQ_REL if available
KVM: arm64: Advertise new kvmarm mailing list
Merge branch kvm-arm64/dirty-log-ordered into kvmarm-master/next
Merge branch kvm-arm64/misc-6.1 into kvmarm-master/next
Mayuresh Chitale (2):
RISC-V: Probe Svinval extension form ISA string
RISC-V: KVM: Allow Guest use Zihintpause extension
Oliver Upton (8):
KVM: arm64: Use visibility hook to treat ID regs as RAZ
KVM: arm64: Remove internal accessor helpers for id regs
KVM: arm64: Drop raz parameter from read_id_reg()
KVM: arm64: Spin off helper for calling visibility hook
KVM: arm64: Add a visibility bit to ignore user writes
KVM: arm64: Treat 32bit ID registers as RAZ/WI on 64bit-only system
KVM: selftests: Add test for AArch32 ID registers
KVM: selftests: Update top-of-file comment in psci_test
Paolo Bonzini (3):
Merge tag 'kvm-x86-6.1-2' of https://github.com/sean-jc/linux into HEAD
Merge tag 'kvmarm-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
Merge tag 'kvm-riscv-6.1-1' of https://github.com/kvm-riscv/linux into HEAD
Peng Hao (2):
kvm: mmu: fix typos in struct kvm_arch
kvm: vmx: keep constant definition format consistent
Reiji Watanabe (4):
KVM: arm64: Preserve PSTATE.SS for the guest while single-step is enabled
KVM: arm64: Clear PSTATE.SS when the Software Step state was Active-pending
KVM: arm64: selftests: Refactor debug-exceptions to make it amenable to new test cases
KVM: arm64: selftests: Add a test case for KVM_GUESTDBG_SINGLESTEP
Sean Christopherson (5):
KVM: selftests: Remove unnecessary register shuffling in fix_hypercall_test
KVM: selftests: Hardcode VMCALL/VMMCALL opcodes in "fix hypercall" test
KVM: selftests: Explicitly verify KVM doesn't patch hypercall if quirk==off
KVM: selftests: Dedup subtests of fix_hypercall_test
Revert "KVM: selftests: Fix nested SVM tests when built with clang"
Vipin Sharma (2):
KVM: selftests: Check result in hyperv_features for successful hypercalls
KVM: selftests: Load RAX with -EFAULT before Hyper-V hypercall
Vitaly Kuznetsov (1):
KVM: selftests: Don't set reserved bits for invalid Hyper-V hypercall number
Wei-Lin Chang (1):
KVM: arm64: Fix comment typo in nvhe/switch.c
Xiu Jianfeng (1):
RISC-V: KVM: add __init annotation to riscv_kvm_init()
Documentation/virt/kvm/api.rst | 17 +-
MAINTAINERS | 3 +-
arch/arm64/include/asm/kvm_host.h | 4 +
arch/arm64/kvm/arm.c | 15 +-
arch/arm64/kvm/debug.c | 34 +++-
arch/arm64/kvm/guest.c | 1 +
arch/arm64/kvm/handle_exit.c | 8 +-
arch/arm64/kvm/hyp/nvhe/switch.c | 2 +-
arch/arm64/kvm/sys_regs.c | 154 ++++++++--------
arch/arm64/kvm/sys_regs.h | 24 ++-
arch/arm64/kvm/vgic/vgic-its.c | 2 +-
arch/riscv/Kconfig | 4 +
arch/riscv/include/asm/gpr-num.h | 8 +
arch/riscv/include/asm/hwcap.h | 4 +
arch/riscv/include/asm/insn-def.h | 137 ++++++++++++++
arch/riscv/include/asm/kvm_host.h | 1 +
arch/riscv/include/asm/kvm_vcpu_sbi.h | 4 +-
arch/riscv/include/uapi/asm/kvm.h | 4 +
arch/riscv/kernel/cpu.c | 1 +
arch/riscv/kernel/cpufeature.c | 1 +
arch/riscv/kvm/Kconfig | 1 +
arch/riscv/kvm/main.c | 2 +-
arch/riscv/kvm/tlb.c | 155 +++++-----------
arch/riscv/kvm/vcpu.c | 60 ++++---
arch/riscv/kvm/vcpu_exit.c | 39 +---
arch/riscv/mm/dma-noncoherent.c | 2 +
arch/x86/include/asm/kvm_host.h | 12 +-
arch/x86/include/asm/vmx.h | 2 +-
arch/x86/kvm/Kconfig | 3 +-
arch/x86/kvm/pmu.c | 20 ++-
arch/x86/kvm/svm/pmu.c | 117 ++----------
arch/x86/kvm/vmx/pmu_intel.c | 29 +--
include/uapi/linux/kvm.h | 1 +
tools/testing/selftests/kvm/.gitignore | 1 +
tools/testing/selftests/kvm/Makefile | 1 +
.../selftests/kvm/aarch64/aarch32_id_regs.c | 169 ++++++++++++++++++
.../selftests/kvm/aarch64/debug-exceptions.c | 149 ++++++++++++++-
.../testing/selftests/kvm/aarch64/psci_test.c | 10 +-
tools/testing/selftests/kvm/dirty_log_test.c | 8 +-
.../selftests/kvm/include/kvm_util_base.h | 4 +
.../testing/selftests/kvm/include/test_util.h | 6 +-
.../selftests/kvm/include/x86_64/processor.h | 4 +
tools/testing/selftests/kvm/lib/kvm_util.c | 44 ++++-
.../selftests/kvm/lib/x86_64/processor.c | 40 +++--
tools/testing/selftests/kvm/lib/x86_64/svm.c | 14 +-
.../selftests/kvm/x86_64/fix_hypercall_test.c | 122 +++++--------
.../selftests/kvm/x86_64/hyperv_features.c | 13 +-
.../selftests/kvm/x86_64/nx_huge_pages_test.c | 19 +-
virt/kvm/Kconfig | 14 ++
virt/kvm/dirty_ring.c | 4 +-
virt/kvm/kvm_main.c | 9 +-
51 files changed, 991 insertions(+), 511 deletions(-)
create mode 100644 arch/riscv/include/asm/insn-def.h
create mode 100644 tools/testing/selftests/kvm/aarch64/aarch32_id_regs.c
diff --cc arch/riscv/kernel/cpu.c
index 87455d12970f,7d1cd653ca02..000000000000
--- a/arch/riscv/kernel/cpu.c
+++ b/arch/riscv/kernel/cpu.c
@@@ -90,14 -90,15 +90,15 @@@ int riscv_of_parent_hartid(struct devic
* standard extensions. They must be separated from other multi-letter
* extensions by an underscore.
*/
static struct riscv_isa_ext_data isa_ext_arr[] = {
__RISCV_ISA_EXT_DATA(sscofpmf, RISCV_ISA_EXT_SSCOFPMF),
+ __RISCV_ISA_EXT_DATA(sstc, RISCV_ISA_EXT_SSTC),
++ __RISCV_ISA_EXT_DATA(svinval, RISCV_ISA_EXT_SVINVAL),
__RISCV_ISA_EXT_DATA(svpbmt, RISCV_ISA_EXT_SVPBMT),
__RISCV_ISA_EXT_DATA(zicbom, RISCV_ISA_EXT_ZICBOM),
__RISCV_ISA_EXT_DATA(zihintpause, RISCV_ISA_EXT_ZIHINTPAUSE),
- __RISCV_ISA_EXT_DATA(sstc, RISCV_ISA_EXT_SSTC),
- __RISCV_ISA_EXT_DATA(svinval, RISCV_ISA_EXT_SVINVAL),
__RISCV_ISA_EXT_DATA("", RISCV_ISA_EXT_MAX),
};
static void print_isa_ext(struct seq_file *f)
{
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