Fangyu Yu 349f101d3f RISC-V: KVM: Fix guest page fault within HLV* instructions ...

[ Upstream commit 974555d6e4 ]

When executing HLV* instructions at the HS mode, a guest page fault
may occur when a g-stage page table migration between triggering the
virtual instruction exception and executing the HLV* instruction.

This may be a corner case, and one simpler way to handle this is to
re-execute the instruction where the virtual  instruction exception
occurred, and the guest page fault will be automatically handled.

Fixes: b91f0e4cb8 ("RISC-V: KVM: Factor-out instruction emulation into separate sources")
Signed-off-by: Fangyu Yu <fangyu.yu@linux.alibaba.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20251121133543.46822-1-fangyu.yu@linux.alibaba.com
Signed-off-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2025-12-18 13:55:05 +01:00

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aia_aplic.c

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aia_device.c

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aia_imsic.c

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aia.c

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Kconfig

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main.c

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Makefile

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mmu.c

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tlb.c

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trace.h

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vcpu_exit.c

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vcpu_fp.c

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vcpu_insn.c

RISC-V: KVM: Fix guest page fault within HLV* instructions

2025-12-18 13:55:05 +01:00

vcpu_onereg.c

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vcpu_pmu.c

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vcpu_sbi_base.c

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vcpu_sbi_hsm.c

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vcpu_sbi_pmu.c

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vcpu_sbi_replace.c

RISC-V: KVM: Don't treat SBI HFENCE calls as NOPs

2025-06-27 11:11:45 +01:00

vcpu_sbi_sta.c

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vcpu_sbi_v01.c

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vcpu_sbi.c

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vcpu_switch.S

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vcpu_timer.c

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vcpu_vector.c

RISC-V: KVM: fix stack overrun when loading vlenb

2025-09-04 15:31:52 +02:00

vcpu.c

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vm.c

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vmid.c

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