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| author | Paolo Bonzini <pbonzini@redhat.com> | 2023-02-15 12:33:28 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2023-02-15 12:33:28 -0500 |
| commit | 33436335e93a1788a58443fc99c5ab320ce4b9d9 (patch) | |
| tree | d92f88768c8dbd00f8b65164f47a8a091768b95a /arch/arm64/kernel/signal.c | |
| parent | 27b025ebb0f6092d5c0a88de2ab73545bc1c496e (diff) | |
| parent | c39cea6f38eefe356d64d0bc1e1f2267e282cdd3 (diff) | |
Merge tag 'kvm-riscv-6.3-1' of https://github.com/kvm-riscv/linux into HEAD
KVM/riscv changes for 6.3
- Fix wrong usage of PGDIR_SIZE to check page sizes
- Fix privilege mode setting in kvm_riscv_vcpu_trap_redirect()
- Redirect illegal instruction traps to guest
- SBI PMU support for guest
Diffstat (limited to 'arch/arm64/kernel/signal.c')
| -rw-r--r-- | arch/arm64/kernel/signal.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c index e0d09bf5b01b..be279fd48248 100644 --- a/arch/arm64/kernel/signal.c +++ b/arch/arm64/kernel/signal.c @@ -281,7 +281,12 @@ static int restore_sve_fpsimd_context(struct user_ctxs *user) vl = task_get_sme_vl(current); } else { - if (!system_supports_sve()) + /* + * A SME only system use SVE for streaming mode so can + * have a SVE formatted context with a zero VL and no + * payload data. + */ + if (!system_supports_sve() && !system_supports_sme()) return -EINVAL; vl = task_get_sve_vl(current); @@ -732,7 +737,7 @@ static int setup_sigframe_layout(struct rt_sigframe_user_layout *user, return err; } - if (system_supports_sve()) { + if (system_supports_sve() || system_supports_sme()) { unsigned int vq = 0; if (add_all || test_thread_flag(TIF_SVE) || |