Andrew Jones 6b7b282e6b RISC-V: KVM: Fix sbiret init before forwarding to userspace ... When forwarding SBI calls to userspace ensure sbiret.error is initialized to SBI_ERR_NOT_SUPPORTED first, in case userspace neglects to set it to anything. If userspace neglects it then we can't be sure it did anything else either, so we just report it didn't do or try anything. Just init sbiret.value to zero, which is the preferred value to return when nothing special is specified. KVM was already initializing both sbiret.error and sbiret.value, but the values used appear to come from a copy+paste of the __sbi_ecall() implementation, i.e. a0 and a1, which don't apply prior to the call being executed, nor at all when forwarding to userspace. Fixes: dea8ee31a0 ("RISC-V: KVM: Add SBI v0.1 support") Signed-off-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20240807154943.150540-2-ajones@ventanamicro.com Signed-off-by: Anup Patel <anup@brainfault.org>		2024-08-19 08:32:10 +05:30
..
aia_aplic.c	RISC-V: KVM: Share APLIC and IMSIC defines with irqchip drivers	2024-06-26 18:37:32 +05:30
aia_device.c	RISC-V: KVM: Share APLIC and IMSIC defines with irqchip drivers	2024-06-26 18:37:32 +05:30
aia_imsic.c	RISC-V: KVM: Share APLIC and IMSIC defines with irqchip drivers	2024-06-26 18:37:32 +05:30
aia.c	RISC-V: KVM: Use IMSIC guest files when available	2024-06-26 18:37:34 +05:30
Kconfig	kvm: replace __KVM_HAVE_READONLY_MEM with Kconfig symbol	2024-02-08 08:41:06 -05:00
main.c	RISC-V: KVM: Implement kvm_arch_vcpu_ioctl_set_guest_debug()	2024-04-08 14:06:27 +05:30
Makefile	kbuild: use $(src) instead of $(srctree)/$(src) for source directory	2024-05-10 04:34:52 +09:00
mmu.c	KVM: delete .change_pte MMU notifier callback	2024-04-11 13:18:27 -04:00
tlb.c	riscv: Rearrange hwcap.h and cpufeature.h	2023-11-09 10:15:51 -08:00
trace.h	RISCV: KVM: add tracepoints for entry and exit events	2024-06-26 18:37:36 +05:30
vcpu_exit.c	RISC-V: KVM: Redirect AMO load/store access fault traps to guest	2024-06-26 18:37:41 +05:30
vcpu_fp.c	riscv: Rearrange hwcap.h and cpufeature.h	2023-11-09 10:15:51 -08:00
vcpu_insn.c	KVM: riscv: Support guest wrs.nto	2024-07-12 08:54:51 -07:00
vcpu_onereg.c	RISC-V Patches for the 6.11 Merge Window, Part 1	2024-07-20 09:11:27 -07:00
vcpu_pmu.c	perf: RISC-V: Check standard event availability	2024-07-03 12:56:22 -07:00
vcpu_sbi_base.c	RISC-V: KVM: Add ONE_REG interface to enable/disable SBI extensions	2023-04-21 17:38:44 +05:30
vcpu_sbi_hsm.c	RISCV: KVM: Introduce vcpu->reset_cntx_lock	2024-04-22 10:39:03 +05:30
vcpu_sbi_pmu.c	RISC-V: KVM: Improve firmware counter read function	2024-04-26 13:13:54 +05:30
vcpu_sbi_replace.c	RISC-V: KVM: Make SBI uapi consistent with ISA uapi	2023-12-29 12:31:44 +05:30
vcpu_sbi_sta.c	RISC-V: KVM: Rename the SBI_STA_SHMEM_DISABLE to a generic name	2024-04-22 11:13:52 +05:30
vcpu_sbi_v01.c	RISC-V: KVM: Modify SBI extension handler to return SBI error code	2023-02-07 20:35:45 +05:30
vcpu_sbi.c	RISC-V: KVM: Fix sbiret init before forwarding to userspace	2024-08-19 08:32:10 +05:30
vcpu_switch.S	riscv: kvm: use ".L" local labels in assembly when applicable	2023-12-29 12:31:33 +05:30
vcpu_timer.c	RISC-V: KVM: do not EOPNOTSUPP in set KVM_REG_RISCV_TIMER_REG	2023-08-08 17:25:49 +05:30
vcpu_vector.c	RISC-V: KVM: add 'vlenb' Vector CSR	2023-12-29 12:31:54 +05:30
vcpu.c	ARM:	2024-07-20 12:41:03 -07:00
vm.c	RISC-V: KVM: Implement kvm_arch_vcpu_ioctl_set_guest_debug()	2024-04-08 14:06:27 +05:30
vmid.c	RISC-V: KVM: Drop the _MASK suffix from hgatp.VMID mask defines	2023-04-21 17:45:44 +05:30