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target/riscv: rvv-1.0: add mstatus VS field

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Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-4-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
LIU Zhiwei 2021-12-10 15:55:49 +08:00 • committed by Alistair Francis
parent 52561f2a80
commit 61b4b69d12
4 changed files with 33 additions and 2 deletions
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20
target/riscv/cpu_helper.c
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@ -90,12 +90,17 @@ void cpu_get_tb_cpu_state(CPURISCVState *env, target_ulong *pc,
#ifdef CONFIG_USER_ONLY
flags |= TB_FLAGS_MSTATUS_FS;
flags |= TB_FLAGS_MSTATUS_VS;
#else
flags |= cpu_mmu_index(env, 0);
if (riscv_cpu_fp_enabled(env)) {
flags |= env->mstatus & MSTATUS_FS;
}
if (riscv_cpu_vector_enabled(env)) {
flags |= env->mstatus & MSTATUS_VS;
}
if (riscv_has_ext(env, RVH)) {
if (env->priv == PRV_M ||
(env->priv == PRV_S && !riscv_cpu_virt_enabled(env)) ||
@ -189,11 +194,24 @@ bool riscv_cpu_fp_enabled(CPURISCVState *env)
return false;
}
/* Return true is vector support is currently enabled */
bool riscv_cpu_vector_enabled(CPURISCVState *env)
{
if (env->mstatus & MSTATUS_VS) {
if (riscv_cpu_virt_enabled(env) && !(env->mstatus_hs & MSTATUS_VS)) {
return false;
}
return true;
}
return false;
}
void riscv_cpu_swap_hypervisor_regs(CPURISCVState *env)
{
uint64_t mstatus_mask = MSTATUS_MXR | MSTATUS_SUM | MSTATUS_FS |
MSTATUS_SPP | MSTATUS_SPIE | MSTATUS_SIE |
MSTATUS64_UXL;
MSTATUS64_UXL | MSTATUS_VS;
bool current_virt = riscv_cpu_virt_enabled(env);
g_assert(riscv_has_ext(env, RVH));