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mirror-linux/arch/riscv/include/asm
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Atish Patra 8f5cb44b1b
RISC-V: KVM: Support sstc extension 
Sstc extension allows the guest to program the vstimecmp CSR directly
instead of making an SBI call to the hypervisor to program the next
event. The timer interrupt is also directly injected to the guest by
the hardware in this case. To maintain backward compatibility, the
hypervisors also update the vstimecmp in an SBI set_time call if
the hardware supports it. Thus, the older kernels in guest also
take advantage of the sstc extension.

Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Atish Patra <atishp@rivosinc.com>
Acked-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/all/CAAhSdy2mb6wyqy0NAn9BcTWKMYEc0Z4zU3s3j7oNqBz6eDQ9sg@mail.gmail.com/
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
 		2022-08-12 07:43:57 -07:00
..
vdso arch/riscv: add Zihintpause support 2022-08-11 08:03:49 -07:00
Kbuild RISC-V: Move to queued RW locks 2022-05-11 11:50:10 -07:00
alternative-macros.h riscv: Move alternative length validation into subsection 2022-06-02 15:55:22 -07:00
alternative.h riscv: add memory-type errata for T-Head 2022-05-11 21:36:33 -07:00
asm-extable.h riscv: extable: add a dedicated uaccess handler 2022-01-05 17:53:29 -08:00
asm-offsets.h
…
asm-prototypes.h riscv: add VMAP_STACK overflow detection 2021-07-06 12:11:38 -07:00
asm.h riscv: introduce nops and __nops macros for NOP sequences 2022-07-21 17:17:29 -07:00
atomic.h riscv: atomic: Add custom conditional atomic operation implementation 2022-05-21 10:31:47 -07:00
barrier.h riscv: introduce nops and __nops macros for NOP sequences 2022-07-21 17:17:29 -07:00
bitops.h include: move find.h from asm_generic to linux 2022-01-15 08:47:31 -08:00
bug.h bug: Use normal relative pointers in 'struct bug_entry' 2022-05-19 23:46:10 +02:00
cache.h riscv: Add support for non-coherent devices using zicbom extension 2022-07-28 15:30:51 -07:00
cacheflush.h riscv: Add support for non-coherent devices using zicbom extension 2022-07-28 15:30:51 -07:00
cacheinfo.h
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clint.h
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clocksource.h
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cmpxchg.h riscv: atomic: Cleanup unnecessary definition 2022-05-21 10:31:45 -07:00
compat.h riscv: compat: Add basic compat data type implementation 2022-04-26 13:36:12 -07:00
cpu_ops.h RISC-V: Declare cpu_ops_spinwait in <asm/cpu_ops.h> 2022-08-11 13:06:47 -07:00
cpu_ops_sbi.h riscv: ensure cpu_ops_sbi is declared 2022-08-11 13:46:51 -07:00
cpuidle.h RISC-V: Enable CPU_IDLE drivers 2022-03-10 09:29:21 -08:00
csr.h RISC-V: Add Sstc extension support 2022-08-11 14:41:52 -07:00
current.h riscv: Rename "sp_in_global" to "current_stack_pointer" 2022-03-30 15:15:27 -07:00
delay.h
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efi.h efi: Simplify arch_efi_call_virt() macro 2022-06-28 20:13:09 +02:00
elf.h riscv: compat: vdso: Add setup additional pages implementation 2022-04-26 13:36:59 -07:00
errata_list.h riscv: implement Zicbom-based CMO instructions + the t-head variant 2022-08-10 20:49:32 -07:00
extable.h riscv: extable: add `type` and `data` fields 2022-01-05 17:52:54 -08:00
fence.h
…
fixmap.h riscv: remove FIXMAP_PAGE_IO and fall back to its default value 2022-05-11 21:36:33 -07:00
ftrace.h riscv: Workaround mcount name prior to clang-13 2021-04-26 08:25:01 -07:00
futex.h riscv: extable: add a dedicated uaccess handler 2022-01-05 17:53:29 -08:00
gdb_xml.h
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gpr-num.h riscv: add gpr-num.h 2022-01-05 17:53:05 -08:00
hugetlb.h
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hwcap.h RISC-V: Add Sstc extension support 2022-08-11 14:41:52 -07:00
image.h
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io.h RISC-V: Use asm-generic for {in,out}{bwlq} 2021-06-30 20:55:40 -07:00
irq.h riscv: irq: Fix no prototype warning 2021-03-09 20:46:00 -08:00
irq_work.h riscv: Fix irq_work when SMP is disabled 2022-06-01 21:46:31 -07:00
irqflags.h
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jump_label.h
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kasan.h riscv: Implement sv48 support 2022-01-19 17:54:09 -08:00
kdebug.h
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kexec.h RISC-V: Prepare dropping week attribute from arch_kexec_apply_relocations[_add] 2022-05-30 16:04:37 -07:00
kfence.h riscv: Enable KFENCE for riscv64 2021-06-30 20:55:41 -07:00
kgdb.h
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kprobes.h kprobes: treewide: Make it harder to refer kretprobe_trampoline directly 2021-09-30 21:24:06 -04:00
kvm_host.h RISC-V: KVM: Add G-stage ioremap() and iounmap() functions 2022-07-29 17:15:06 +05:30
kvm_types.h KVM: RISC-V: Use common KVM implementation of MMU memory caches 2022-01-06 14:38:50 +05:30
kvm_vcpu_fp.h RISC-V: KVM: Improve ISA extension by using a bitmap 2022-07-29 17:14:11 +05:30
kvm_vcpu_insn.h RISC-V: KVM: Add extensible CSR emulation framework 2022-07-29 17:14:53 +05:30
kvm_vcpu_sbi.h RISC-V: KVM: Add common kvm_riscv_vcpu_sbi_system_reset() function 2022-03-11 19:02:29 +05:30
kvm_vcpu_timer.h RISC-V: KVM: Support sstc extension 2022-08-12 07:43:57 -07:00
linkage.h
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mmio.h
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mmiowb.h
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mmu.h riscv: compat: vdso: Add setup additional pages implementation 2022-04-26 13:36:59 -07:00
mmu_context.h riscv: add ASID-based tlbflushing methods 2021-06-30 20:55:39 -07:00
mmzone.h riscv: Add numa support for riscv64 platform 2021-01-14 15:08:58 -08:00
module.h
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module.lds.h riscv module: remove (NOLOAD) 2022-03-29 14:31:07 -07:00
numa.h riscv: Add numa support for riscv64 platform 2021-01-14 15:08:58 -08:00
page.h arch/*/: remove CONFIG_VIRT_TO_BUS 2022-06-28 13:20:21 +02:00
parse_asm.h
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patch.h
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pci.h RISC-V Patches for the 5.20 Merge Window, Part 1 2022-08-06 15:04:48 -07:00
perf_event.h RISC-V: Remove the current perf implementation 2022-03-21 14:58:12 -07:00
pgalloc.h riscv: mm: Control p4d's folding by pgtable_l5_enabled 2022-02-14 16:32:39 -08:00
pgtable-32.h riscv: add RISC-V Svpbmt extension support 2022-05-11 21:36:33 -07:00
pgtable-64.h riscv: Fix missing PAGE_PFN_MASK 2022-07-11 09:33:35 +05:30
pgtable-bits.h riscv: add RISC-V Svpbmt extension support 2022-05-11 21:36:33 -07:00
pgtable.h - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
probes.h riscv: Add kprobes supported 2021-01-14 15:09:06 -08:00
processor.h riscv: cpu: Add 64bit hartid support on RV64 2022-07-19 16:39:14 -07:00
ptdump.h
…
ptrace.h riscv: ptrace: add argn syntax 2021-07-05 20:53:09 -07:00
sbi.h RISC-V: Improve SBI definitions 2022-08-11 14:58:32 -07:00
seccomp.h riscv: Enable seccomp architecture tracking 2020-11-20 11:16:35 -08:00
sections.h riscv: Map the kernel with correct permissions the first time 2021-06-30 21:18:58 -07:00
set_memory.h riscv: Map the kernel with correct permissions the first time 2021-06-30 21:18:58 -07:00
signal32.h riscv: compat: signal: Add rt_frame implementation 2022-05-17 16:37:21 -07:00
smp.h riscv: smp: Add 64bit hartid support on RV64 2022-07-19 16:39:09 -07:00
soc.h riscv: Fix builtin DTB handling 2021-01-07 19:00:50 -08:00
sparsemem.h riscv: Allow to dynamically define VA_BITS 2022-01-19 17:54:07 -08:00
stackprotector.h riscv: Enable per-task stack canaries 2021-01-14 15:09:10 -08:00
stacktrace.h riscv: Add dump stack in show_regs 2021-01-14 15:09:11 -08:00
string.h riscv: Add ARCH_HAS_FORTIFY_SOURCE 2021-03-09 18:18:31 -08:00
suspend.h RISC-V: Add arch functions for non-retentive suspend entry/exit 2022-03-10 09:29:31 -08:00
switch_to.h riscv: switch has_fpu() to the unified static key mechanism 2022-06-16 10:51:31 -07:00
syscall.h riscv: compat: syscall: Add compat_sys_call_table implementation 2022-04-26 13:36:25 -07:00
thread_info.h riscv: compat: Add basic compat data type implementation 2022-04-26 13:36:12 -07:00
timex.h riscv: use fallback for random_get_entropy() instead of zero 2022-05-13 23:59:23 +02:00
tlb.h
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tlbflush.h riscv: fix build error when CONFIG_SMP is disabled 2021-06-08 17:05:03 -07:00
uaccess.h uaccess: generalize access_ok() 2022-02-25 09:36:05 +01:00
unistd.h riscv: Wire up memfd_secret in UAPI header 2022-06-01 21:46:36 -07:00
uprobes.h riscv: Add uprobes supported 2021-01-14 15:09:08 -08:00
vdso.h riscv: compat: vdso: Add COMPAT_VDSO base code implementation 2022-04-26 13:36:53 -07:00
vendorid_list.h riscv: add memory-type errata for T-Head 2022-05-11 21:36:33 -07:00
vermagic.h
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vmalloc.h
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word-at-a-time.h
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xip_fixup.h RISC-V: Split out the XIP fixups into their own file 2022-05-25 14:43:33 -07:00