| Message ID | 20230331014530.29805-6-liweiwei@iscas.ac.cn (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | target/riscv: Fix pointer mask related support | expand |
On 2023/3/31 9:45, Weiwei Li wrote: > The existence of CF_PCREL can improve performance with the guest > kernel's address space randomization. Each guest process maps > libc.so (et al) at a different virtual address, and this allows > those translations to be shared. > > Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn> > Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn> > --- > target/riscv/cpu.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c > index 646fa31a59..3b562d5d9f 100644 > --- a/target/riscv/cpu.c > +++ b/target/riscv/cpu.c > @@ -1193,6 +1193,8 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp) > > > #ifndef CONFIG_USER_ONLY > + cs->tcg_cflags |= CF_PCREL; > + Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Zhiwei > if (cpu->cfg.ext_sstc) { > riscv_timer_init(cpu); > }
diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 646fa31a59..3b562d5d9f 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -1193,6 +1193,8 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp) #ifndef CONFIG_USER_ONLY + cs->tcg_cflags |= CF_PCREL; + if (cpu->cfg.ext_sstc) { riscv_timer_init(cpu); }