OpenE2K
/
qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

target/riscv: Fix update of hstatus.SPVP 

When trapping from virt into HS mode, hstatus.SPVP was set to
the value of sstatus.SPP, as according to the specification both
flags should be set to the same value.
However, the assignment of SPVP takes place before SPP itself is
updated, which results in SPVP having an outdated value.

Signed-off-by: Georg Kotheimer <georg.kotheimer@kernkonzept.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20201013151054.396481-1-georg.kotheimer@kernkonzept.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Georg Kotheimer 2020-10-13 17:10:54 +02:00 committed by Alistair Francis
parent 801da1701c
commit ace544532c
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
target/riscv/cpu_helper.c
View File

@ -938,7 +938,7 @@ void riscv_cpu_do_interrupt(CPUState *cs)
/* Trap into HS mode, from virt */
riscv_cpu_swap_hypervisor_regs(env);
env->hstatus = set_field(env->hstatus, HSTATUS_SPVP,
get_field(env->mstatus, SSTATUS_SPP));
env->priv);
env->hstatus = set_field(env->hstatus, HSTATUS_SPV,
riscv_cpu_virt_enabled(env));