Anup Patel 13acfec2db RISC-V: KVM: Add remote HFENCE functions based on VCPU requests ... The generic KVM has support for VCPU requests which can be used to do arch-specific work in the run-loop. We introduce remote HFENCE functions which will internally use VCPU requests instead of host SBI calls. Advantages of doing remote HFENCEs as VCPU requests are: 1) Multiple VCPUs of a Guest may be running on different Host CPUs so it is not always possible to determine the Host CPU mask for doing Host SBI call. For example, when VCPU X wants to do HFENCE on VCPU Y, it is possible that VCPU Y is blocked or in user-space (i.e. vcpu->cpu < 0). 2) To support nested virtualization, we will be having a separate shadow G-stage for each VCPU and a common host G-stage for the entire Guest/VM. The VCPU requests based remote HFENCEs helps us easily synchronize the common host G-stage and shadow G-stage of each VCPU without any additional IPI calls. This is also a preparatory patch for upcoming nested virtualization support where we will be having a shadow G-stage page table for each Guest VCPU. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Atish Patra <atishp@rivosinc.com> Signed-off-by: Anup Patel <anup@brainfault.org>		2022-05-20 09:09:15 +05:30
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boot	riscv: dts: microchip: reparent mpfs clocks	2022-04-22 18:40:30 -07:00
configs	RISC-V: configs: Configs that had RPMSG_CHAR now get RPMSG_CTRL	2022-04-26 08:19:53 -07:00
errata	riscv: errata: alternative: mark vendor_patch_func __initdata	2022-01-09 11:02:46 -08:00
include	RISC-V: KVM: Add remote HFENCE functions based on VCPU requests	2022-05-20 09:09:15 +05:30
kernel	riscv: patch_text: Fixup last cpu should be master	2022-04-22 08:29:24 -07:00
kvm	RISC-V: KVM: Add remote HFENCE functions based on VCPU requests	2022-05-20 09:09:15 +05:30
lib	riscv: Fixed misaligned memory access. Fixed pointer comparison.	2022-03-10 10:24:04 -08:00
mm	RISC-V: relocate DTB if it's outside memory region	2022-04-29 07:59:18 -07:00
net	riscv: bpf: Fix eBPF's exception tables	2022-01-19 10:50:02 -08:00
Kbuild	kbuild: use more subdir- for visiting subdirectories while cleaning	2021-10-24 13:49:46 +09:00
Kconfig	RISC-V CPU Idle Support	2022-03-30 16:17:54 -07:00
Kconfig.debug	RISC-V: Remove EARLY_PRINTK support	2018-12-17 10:23:46 -08:00
Kconfig.erratas	riscv: alternative only works on !XIP_KERNEL	2022-03-10 10:05:19 -08:00
Kconfig.socs	RISC-V: cpuidle: fix Kconfig select for RISCV_SBI_CPUIDLE	2022-04-21 15:10:47 -07:00
Makefile	riscv: fix build with binutils 2.38	2022-02-10 09:17:01 -08:00