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| author | Anup Patel <apatel@ventanamicro.com> | 2025-06-05 11:44:47 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-27 11:07:41 +0100 |
| commit | 9bcafbd27002019954bda309910c2425c459702f (patch) | |
| tree | 297b25736bfcfd11bc3e2c91ee9cb339a06e2477 /mm | |
| parent | 8a8b342332e27280e48d0f7013d70b4e688947af (diff) | |
| download | linux-9bcafbd27002019954bda309910c2425c459702f.tar.gz linux-9bcafbd27002019954bda309910c2425c459702f.tar.bz2 linux-9bcafbd27002019954bda309910c2425c459702f.zip | |
RISC-V: KVM: Don't treat SBI HFENCE calls as NOPs
[ Upstream commit 2e7be162996640bbe3b6da694cc064c511b8a5d9 ]
The SBI specification clearly states that SBI HFENCE calls should
return SBI_ERR_NOT_SUPPORTED when one of the target hart doesn’t
support hypervisor extension (aka nested virtualization in-case
of KVM RISC-V).
Fixes: c7fa3c48de86 ("RISC-V: KVM: Treat SBI HFENCE calls as NOPs")
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Link: https://lore.kernel.org/r/20250605061458.196003-3-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions