| Message ID | 20210212143657.3312035-1-maz@kernel.org |
|---|---|
| State | New |
| Headers | show |
| Series | [GIT,PULL] KVM/arm64 updates for 5.12 | expand |
On 12/02/21 15:36, Marc Zyngier wrote: > Hi Paolo, > > Here's the initial set of KVM/arm64 updates for 5.11. > > The most notable change this time is David's work to finally build the > nVHE EL2 object as a relocatable object. This makes the code a lot > cleaner, more reliable (we don't have to assume things about code > generation), and allows... function pointers, with any ugly hack! > Progress, at last, and a huge thank you to David! > > We also gained support for the new TRNG standard hypercall, and a nice > optimisation for concurrent translation faults targeting the same > page. The rest is a small batch of fixes and other cleanups. > > Note that there is another bunch of changes indirectly affecting > KVM/arm64 that are routed via the arm64 tree, as we turn upside down > the way we boot Linux on a VHE system. It's all good fun. > > This pull request also comes with strings attached: > - the kvmarm-fixes-5.11-2 tag in order to avoid ugly conflicts, which > explains a sense of déjà-vu in the short-log below > - the arm64/for-next/misc branch because of dependencies > > Please pull, > > M. > > The following changes since commit 19c329f6808995b142b3966301f217c831e7cf31: > > Linux 5.11-rc4 (2021-01-17 16:37:05 -0800) > > are available in the Git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-5.12 > > for you to fetch changes up to c93199e93e1232b7220482dffa05b7a32a195fe8: > > Merge branch 'kvm-arm64/pmu-debug-fixes-5.11' into kvmarm-master/next (2021-02-12 14:08:41 +0000) > > ---------------------------------------------------------------- > KVM/arm64 updates for Linux 5.12 > > - Make the nVHE EL2 object relocatable, resulting in much more > maintainable code > - Handle concurrent translation faults hitting the same page > in a more elegant way > - Support for the standard TRNG hypervisor call > - A bunch of small PMU/Debug fixes > - Allow the disabling of symbol export from assembly code > - Simplification of the early init hypercall handling > > ---------------------------------------------------------------- > Alexandru Elisei (2): > KVM: arm64: Use the reg_to_encoding() macro instead of sys_reg() > KVM: arm64: Correct spelling of DBGDIDR register > > Andrew Scull (1): > KVM: arm64: Simplify __kvm_hyp_init HVC detection > > Ard Biesheuvel (2): > firmware: smccc: Add SMCCC TRNG function call IDs > KVM: arm64: Implement the TRNG hypervisor call > > David Brazdil (9): > KVM: arm64: Allow PSCI SYSTEM_OFF/RESET to return > KVM: arm64: Rename .idmap.text in hyp linker script > KVM: arm64: Set up .hyp.rodata ELF section > KVM: arm64: Add symbol at the beginning of each hyp section > KVM: arm64: Generate hyp relocation data > KVM: arm64: Apply hyp relocations at runtime > KVM: arm64: Fix constant-pool users in hyp > KVM: arm64: Remove patching of fn pointers in hyp > KVM: arm64: Remove hyp_symbol_addr > > Marc Zyngier (20): > KVM: arm64: Hide PMU registers from userspace when not available > KVM: arm64: Simplify handling of absent PMU system registers > arm64: Drop workaround for broken 'S' constraint with GCC 4.9 > KVM: arm64: Filter out v8.1+ events on v8.0 HW > KVM: Forbid the use of tagged userspace addresses for memslots > Merge branch 'arm64/for-next/misc' into kvm-arm64/hyp-reloc > KVM: arm64: Make gen-hyprel endianness agnostic > KVM: arm64: Fix missing RES1 in emulation of DBGBIDR > KVM: arm64: Fix AArch32 PMUv3 capping > KVM: arm64: Add handling of AArch32 PCMEID{2,3} PMUv3 registers > KVM: arm64: Refactor filtering of ID registers > KVM: arm64: Limit the debug architecture to ARMv8.0 > KVM: arm64: Upgrade PMU support to ARMv8.4 > KVM: arm64: Use symbolic names for the PMU versions > Merge tag 'kvmarm-fixes-5.11-2' into kvmarm-master/next > Merge branch 'kvm-arm64/misc-5.12' into kvmarm-master/next > Merge branch 'kvm-arm64/concurrent-translation-fault' into kvmarm-master/next > Merge branch 'kvm-arm64/hyp-reloc' into kvmarm-master/next > Merge branch 'kvm-arm64/rng-5.12' into kvmarm-master/next > Merge branch 'kvm-arm64/pmu-debug-fixes-5.11' into kvmarm-master/next > > Quentin Perret (2): > asm-generic: export: Stub EXPORT_SYMBOL with __DISABLE_EXPORTS > KVM: arm64: Stub EXPORT_SYMBOL for nVHE EL2 code > > Steven Price (1): > KVM: arm64: Compute TPIDR_EL2 ignoring MTE tag > > Yanan Wang (3): > KVM: arm64: Adjust partial code of hyp stage-1 map and guest stage-2 map > KVM: arm64: Filter out the case of only changing permissions from stage-2 map path > KVM: arm64: Mark the page dirty only if the fault is handled successfully > > Documentation/virt/kvm/api.rst | 3 + > arch/arm64/include/asm/hyp_image.h | 29 +- > arch/arm64/include/asm/kvm_asm.h | 26 -- > arch/arm64/include/asm/kvm_host.h | 2 + > arch/arm64/include/asm/kvm_mmu.h | 61 ++--- > arch/arm64/include/asm/kvm_pgtable.h | 5 + > arch/arm64/include/asm/sections.h | 3 +- > arch/arm64/include/asm/sysreg.h | 3 + > arch/arm64/kernel/image-vars.h | 1 - > arch/arm64/kernel/smp.c | 4 +- > arch/arm64/kernel/vmlinux.lds.S | 18 +- > arch/arm64/kvm/Makefile | 2 +- > arch/arm64/kvm/arm.c | 10 +- > arch/arm64/kvm/hyp/include/hyp/switch.h | 4 +- > arch/arm64/kvm/hyp/nvhe/.gitignore | 2 + > arch/arm64/kvm/hyp/nvhe/Makefile | 33 ++- > arch/arm64/kvm/hyp/nvhe/gen-hyprel.c | 438 +++++++++++++++++++++++++++++++ > arch/arm64/kvm/hyp/nvhe/host.S | 29 +- > arch/arm64/kvm/hyp/nvhe/hyp-init.S | 19 +- > arch/arm64/kvm/hyp/nvhe/hyp-main.c | 11 +- > arch/arm64/kvm/hyp/nvhe/hyp-smp.c | 4 +- > arch/arm64/kvm/hyp/nvhe/hyp.lds.S | 9 +- > arch/arm64/kvm/hyp/nvhe/psci-relay.c | 37 ++- > arch/arm64/kvm/hyp/pgtable.c | 83 +++--- > arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c | 2 +- > arch/arm64/kvm/hypercalls.c | 6 + > arch/arm64/kvm/mmu.c | 13 +- > arch/arm64/kvm/pmu-emul.c | 24 +- > arch/arm64/kvm/sys_regs.c | 178 ++++++++----- > arch/arm64/kvm/trng.c | 85 ++++++ > arch/arm64/kvm/va_layout.c | 34 ++- > include/asm-generic/export.h | 2 +- > include/linux/arm-smccc.h | 31 +++ > virt/kvm/kvm_main.c | 1 + > 34 files changed, 934 insertions(+), 278 deletions(-) > create mode 100644 arch/arm64/kvm/hyp/nvhe/gen-hyprel.c > create mode 100644 arch/arm64/kvm/trng.c > Pulled, thanks! Paolo
Hi Paolo, Here's the initial set of KVM/arm64 updates for 5.11. The most notable change this time is David's work to finally build the nVHE EL2 object as a relocatable object. This makes the code a lot cleaner, more reliable (we don't have to assume things about code generation), and allows... function pointers, with any ugly hack! Progress, at last, and a huge thank you to David! We also gained support for the new TRNG standard hypercall, and a nice optimisation for concurrent translation faults targeting the same page. The rest is a small batch of fixes and other cleanups. Note that there is another bunch of changes indirectly affecting KVM/arm64 that are routed via the arm64 tree, as we turn upside down the way we boot Linux on a VHE system. It's all good fun. This pull request also comes with strings attached: - the kvmarm-fixes-5.11-2 tag in order to avoid ugly conflicts, which explains a sense of déjà-vu in the short-log below - the arm64/for-next/misc branch because of dependencies Please pull, M. The following changes since commit 19c329f6808995b142b3966301f217c831e7cf31: Linux 5.11-rc4 (2021-01-17 16:37:05 -0800) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-5.12 for you to fetch changes up to c93199e93e1232b7220482dffa05b7a32a195fe8: Merge branch 'kvm-arm64/pmu-debug-fixes-5.11' into kvmarm-master/next (2021-02-12 14:08:41 +0000) ---------------------------------------------------------------- KVM/arm64 updates for Linux 5.12 - Make the nVHE EL2 object relocatable, resulting in much more maintainable code - Handle concurrent translation faults hitting the same page in a more elegant way - Support for the standard TRNG hypervisor call - A bunch of small PMU/Debug fixes - Allow the disabling of symbol export from assembly code - Simplification of the early init hypercall handling ---------------------------------------------------------------- Alexandru Elisei (2): KVM: arm64: Use the reg_to_encoding() macro instead of sys_reg() KVM: arm64: Correct spelling of DBGDIDR register Andrew Scull (1): KVM: arm64: Simplify __kvm_hyp_init HVC detection Ard Biesheuvel (2): firmware: smccc: Add SMCCC TRNG function call IDs KVM: arm64: Implement the TRNG hypervisor call David Brazdil (9): KVM: arm64: Allow PSCI SYSTEM_OFF/RESET to return KVM: arm64: Rename .idmap.text in hyp linker script KVM: arm64: Set up .hyp.rodata ELF section KVM: arm64: Add symbol at the beginning of each hyp section KVM: arm64: Generate hyp relocation data KVM: arm64: Apply hyp relocations at runtime KVM: arm64: Fix constant-pool users in hyp KVM: arm64: Remove patching of fn pointers in hyp KVM: arm64: Remove hyp_symbol_addr Marc Zyngier (20): KVM: arm64: Hide PMU registers from userspace when not available KVM: arm64: Simplify handling of absent PMU system registers arm64: Drop workaround for broken 'S' constraint with GCC 4.9 KVM: arm64: Filter out v8.1+ events on v8.0 HW KVM: Forbid the use of tagged userspace addresses for memslots Merge branch 'arm64/for-next/misc' into kvm-arm64/hyp-reloc KVM: arm64: Make gen-hyprel endianness agnostic KVM: arm64: Fix missing RES1 in emulation of DBGBIDR KVM: arm64: Fix AArch32 PMUv3 capping KVM: arm64: Add handling of AArch32 PCMEID{2,3} PMUv3 registers KVM: arm64: Refactor filtering of ID registers KVM: arm64: Limit the debug architecture to ARMv8.0 KVM: arm64: Upgrade PMU support to ARMv8.4 KVM: arm64: Use symbolic names for the PMU versions Merge tag 'kvmarm-fixes-5.11-2' into kvmarm-master/next Merge branch 'kvm-arm64/misc-5.12' into kvmarm-master/next Merge branch 'kvm-arm64/concurrent-translation-fault' into kvmarm-master/next Merge branch 'kvm-arm64/hyp-reloc' into kvmarm-master/next Merge branch 'kvm-arm64/rng-5.12' into kvmarm-master/next Merge branch 'kvm-arm64/pmu-debug-fixes-5.11' into kvmarm-master/next Quentin Perret (2): asm-generic: export: Stub EXPORT_SYMBOL with __DISABLE_EXPORTS KVM: arm64: Stub EXPORT_SYMBOL for nVHE EL2 code Steven Price (1): KVM: arm64: Compute TPIDR_EL2 ignoring MTE tag Yanan Wang (3): KVM: arm64: Adjust partial code of hyp stage-1 map and guest stage-2 map KVM: arm64: Filter out the case of only changing permissions from stage-2 map path KVM: arm64: Mark the page dirty only if the fault is handled successfully Documentation/virt/kvm/api.rst | 3 + arch/arm64/include/asm/hyp_image.h | 29 +- arch/arm64/include/asm/kvm_asm.h | 26 -- arch/arm64/include/asm/kvm_host.h | 2 + arch/arm64/include/asm/kvm_mmu.h | 61 ++--- arch/arm64/include/asm/kvm_pgtable.h | 5 + arch/arm64/include/asm/sections.h | 3 +- arch/arm64/include/asm/sysreg.h | 3 + arch/arm64/kernel/image-vars.h | 1 - arch/arm64/kernel/smp.c | 4 +- arch/arm64/kernel/vmlinux.lds.S | 18 +- arch/arm64/kvm/Makefile | 2 +- arch/arm64/kvm/arm.c | 10 +- arch/arm64/kvm/hyp/include/hyp/switch.h | 4 +- arch/arm64/kvm/hyp/nvhe/.gitignore | 2 + arch/arm64/kvm/hyp/nvhe/Makefile | 33 ++- arch/arm64/kvm/hyp/nvhe/gen-hyprel.c | 438 +++++++++++++++++++++++++++++++ arch/arm64/kvm/hyp/nvhe/host.S | 29 +- arch/arm64/kvm/hyp/nvhe/hyp-init.S | 19 +- arch/arm64/kvm/hyp/nvhe/hyp-main.c | 11 +- arch/arm64/kvm/hyp/nvhe/hyp-smp.c | 4 +- arch/arm64/kvm/hyp/nvhe/hyp.lds.S | 9 +- arch/arm64/kvm/hyp/nvhe/psci-relay.c | 37 ++- arch/arm64/kvm/hyp/pgtable.c | 83 +++--- arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c | 2 +- arch/arm64/kvm/hypercalls.c | 6 + arch/arm64/kvm/mmu.c | 13 +- arch/arm64/kvm/pmu-emul.c | 24 +- arch/arm64/kvm/sys_regs.c | 178 ++++++++----- arch/arm64/kvm/trng.c | 85 ++++++ arch/arm64/kvm/va_layout.c | 34 ++- include/asm-generic/export.h | 2 +- include/linux/arm-smccc.h | 31 +++ virt/kvm/kvm_main.c | 1 + 34 files changed, 934 insertions(+), 278 deletions(-) create mode 100644 arch/arm64/kvm/hyp/nvhe/gen-hyprel.c create mode 100644 arch/arm64/kvm/trng.c