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target/riscv: Fix update of hstatus.GVA in riscv_cpu_do_interrupt 

The hstatus.GVA bit was not set if the faulting guest virtual address
was zero.

Signed-off-by: Georg Kotheimer <georg.kotheimer@kernkonzept.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20201013173054.451135-1-georg.kotheimer@kernkonzept.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Georg Kotheimer 2020-10-13 19:30:54 +02:00 committed by Alistair Francis
parent ace544532c
commit 4aeb9e26c2
1 changed files with 3 additions and 1 deletions
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4
target/riscv/cpu_helper.c
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@ -852,6 +852,7 @@ void riscv_cpu_do_interrupt(CPUState *cs)
bool async = !!(cs->exception_index & RISCV_EXCP_INT_FLAG);
target_ulong cause = cs->exception_index & RISCV_EXCP_INT_MASK;
target_ulong deleg = async ? env->mideleg : env->medeleg;
bool write_tval = false;
target_ulong tval = 0;
target_ulong htval = 0;
target_ulong mtval2 = 0;
@ -873,6 +874,7 @@ void riscv_cpu_do_interrupt(CPUState *cs)
case RISCV_EXCP_INST_PAGE_FAULT:
case RISCV_EXCP_LOAD_PAGE_FAULT:
case RISCV_EXCP_STORE_PAGE_FAULT:
write_tval = true;
tval = env->badaddr;
break;
default:
@ -910,7 +912,7 @@ void riscv_cpu_do_interrupt(CPUState *cs)
target_ulong hdeleg = async ? env->hideleg : env->hedeleg;
if ((riscv_cpu_virt_enabled(env) ||
riscv_cpu_two_stage_lookup(env)) && tval) {
riscv_cpu_two_stage_lookup(env)) && write_tval) {
/*
* If we are writing a guest virtual address to stval, set
* this to 1. If we are trapping to VS we will set this to 0