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
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	RISC-V: Task implementation	2017-09-26 15:26:46 -07:00
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	riscv: Add cache information in AUX vector	2020-09-15 18:46:08 -07:00
clint.h	RISC-V: Resurrect the MMIO timer implementation for M-mode systems	2020-09-19 13:21:11 -07:00
clocksource.h	riscv: use vDSO common flow to reduce the latency of the time-related functions	2020-06-10 19:47:16 -07:00
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	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286	2019-06-05 17:36:37 +02:00
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	riscv/spinlock: Strengthen implementations with fences	2018-04-02 19:59:43 -07:00
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	riscv: Avoid kgdb.h including gdb_xml.h to solve unused-const-variable warning	2020-07-09 20:12:28 -07:00
gpr-num.h	riscv: add gpr-num.h	2022-01-05 17:53:05 -08:00
hugetlb.h	mm/hugetlb: define a generic fallback for arch_clear_hugepage_flags()	2020-06-03 20:09:46 -07:00
hwcap.h	RISC-V: Add Sstc extension support	2022-08-11 14:41:52 -07:00
image.h	RISC-V: Typo fixes in image header and documentation.	2019-12-19 09:32:45 -07:00
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	riscv: abstract out CSR names for supervisor vs machine mode	2019-11-05 09:20:42 -08:00
jump_label.h	riscv: Add jump-label implementation	2020-07-30 11:37:43 -07:00
kasan.h	riscv: Implement sv48 support	2022-01-19 17:54:09 -08:00
Kbuild	RISC-V: Move to queued RW locks	2022-05-11 11:50:10 -07:00
kdebug.h	riscv: Add KGDB support	2020-05-18 11:38:10 -07:00
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	riscv: Avoid kgdb.h including gdb_xml.h to solve unused-const-variable warning	2020-07-09 20:12:28 -07:00
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	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286	2019-06-05 17:36:37 +02:00
mmio.h	riscv: Use generic pgprot_* macros from <linux/pgtable.h>	2020-07-30 11:37:46 -07:00
mmiowb.h	riscv: mmiowb: Fix implicit declaration of function 'smp_processor_id'	2020-05-13 17:11:46 -07:00
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	arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h>	2020-04-23 10:50:26 +09:00
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	riscv: Add SW single-step support for KDB	2020-05-18 11:38:12 -07:00
patch.h	riscv: Remove the 'riscv_' prefix of function name	2020-05-18 11:38:13 -07:00
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	riscv: support DEBUG_WX	2020-06-03 20:09:50 -07:00
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	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286	2019-06-05 17:36:37 +02:00
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	arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h>	2020-04-23 10:50:26 +09:00
vmalloc.h	mm/vmalloc: Add empty <asm/vmalloc.h> headers and use them from <linux/vmalloc.h>	2019-12-10 10:12:55 +01:00
word-at-a-time.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286	2019-06-05 17:36:37 +02:00
xip_fixup.h	RISC-V: Split out the XIP fixups into their own file	2022-05-25 14:43:33 -07:00